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391 Commits
Author | SHA1 | Message | Date | |
---|---|---|---|---|
Linus Torvalds
|
6f630784cc |
This time around we have 4 lines of diff in the core framework, removing a
function that isn't used anymore. Otherwise the main new thing for the common clk framework is that it is selectable in the Kconfig language now. Hopefully this will let clk drivers and clk consumers be testable on more than the architectures that support the clk framework. The goal is to introduce some Kunit tests for the framework. Outside of the core framework we have the usual set of various driver updates and non-critical fixes. The dirstat shows that the new Baikal-T1 driver is the largest addition this time around in terms of lines of code. After that the x86 (Intel), Qualcomm, and Mediatek drivers introduce many lines to support new or upcoming SoCs. After that the dirstat shows the usual suspects working on their SoC support by fixing minor bugs, correcting data and converting some of their DT bindings to YAML. Core: - Allow the COMMON_CLK config to be selectable New Drivers: - Clk driver for Baikal-T1 SoCs - Mediatek MT6765 clock support - Support for Intel Agilex clks - Add support for X1830 and X1000 Ingenic SoC clk controllers - Add support for the new Renesas RZ/G1H (R8A7742) SoC - Add support for Qualcomm's MSM8939 Generic Clock Controller Updates: - Support IDT VersaClock 5P49V5925 - Bunch of updates for HSDK clock generation unit (CGU) driver - Start making audio and GPU clks work on Marvell MMP2/MMP3 SoCs - Add some GPU, NPU, and UFS clks to Qualcomm SM8150 driver - Enable supply regulators for GPU gdscs on Qualcomm SoCs - Add support for Si5342, Si5344 and Si5345 chips - Support custom flags in Xilinx zynq firmware - Various small fixes to the Xilinx clk driver - A single minor rounding fix for the legacy Allwinner clock support - A few patches from Abel Vesa as preparation of adding audiomix clock support on i.MX - A couple of cleanups from Anson Huang for i.MX clk-sscg-pll and clk-pllv3 drivers - Drop dependency on ARM64 for i.MX8M clock driver, to support aarch32 mode on aarch64 hardware - A series from Peng Fan to improve i.MX8M clock drivers, using composite clock for core and bus clk slice - Set a better parent clock for flexcan on i.MX6UL to support CiA102 defined bit rates - A couple changes for EMC frequency scaling on Tegra210 - Support for CPU frequency scaling on Tegra20/Tegra30 - New clk gate for CSI test pattern generator on Tegra210 - Regression fixes for Samsung exynos542x and exynos5433 SoCs - Use of fallthrough; attribute for Samsung s3c24xx - Updates and fixup HDMI and video clocks on Meson8b - Fixup reset polarity on Meson8b - Fix GPU glitch free mux switch on Meson gx and g12 - A minor fix for the currently unused suspend/resume handling on Renesas RZ/A1 and RZ/A2 - Two more conversions of Renesas DT bindings to json-schema - Add support for the USB 2.0 clock selector on Renesas R-Car M3-W+ -----BEGIN PGP SIGNATURE----- iQJFBAABCAAvFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAl7gEUgRHHNib3lkQGtl cm5lbC5vcmcACgkQrQKIl8bklSUemxAAlQKzx0yMS3yx5twJ4RSFUvf3hf4OqyPp O46soqADk+l69Z4SUUBsMjt8el5Sqmm4d1j1Gpfmgp3ZlumHCQK+qGYp48IXbwRP Jlo5sKNlNL6yhCd+ixPn4j7W/HbpGs4cciWOXkGQtYEGjhHm3Wllhd9MqpL2YjLx gZW60NqWtOe1XeB4ILyYQGisNwAGDi5XuBeNvxG12H/LaGC1mwtBX9yoNAehr9bF peJ2XnO02zFo73OCyzIOkw1uY4u7ZtwPdHGhymoGeVlcBWO6KwKesNkHnji/Grlv wMbsGLoRV/i3PL3q5kZIDigo8sqZ9RUG+9piRAoiLM5AgkSypw3/q9T+ujTfZp8t kgvFha6bLZz31UFmr4lBJPTT5Q/hAoe1W6RB6HZkx7XNqUpsAS04SwkQztAqkJqZ 9zlYJrXgLlP5qcNllJ6zvUWkMqtmIKW4ZkjYe4u84yk5Co7bX8DCYa+QOKCz+pV4 IbjRT62OrX2ZlXJYwkLb4m1nhZ7tBzhzIRP1umL0ukhxdomK6ofSNPzbBF9+t1eR /ai2/Ch6L6WIwDINEp+chO67/dJaj5W3WNqGMCmVt37myW1kBjH3eg0YG4cp7NYZ /jSjdWczQy/8BgY5V1009MRXI4uyazQxBw+apDcIGezamOKBmuwjBcvkf1D0mL2x Y6OclK5ljsw= =nuG5 -----END PGP SIGNATURE----- Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "This time around we have four lines of diff in the core framework, removing a function that isn't used anymore. Otherwise the main new thing for the common clk framework is that it is selectable in the Kconfig language now. Hopefully this will let clk drivers and clk consumers be testable on more than the architectures that support the clk framework. The goal is to introduce some Kunit tests for the framework. Outside of the core framework we have the usual set of various driver updates and non-critical fixes. The dirstat shows that the new Baikal-T1 driver is the largest addition this time around in terms of lines of code. After that the x86 (Intel), Qualcomm, and Mediatek drivers introduce many lines to support new or upcoming SoCs. After that the dirstat shows the usual suspects working on their SoC support by fixing minor bugs, correcting data and converting some of their DT bindings to YAML. Core: - Allow the COMMON_CLK config to be selectable New Drivers: - Clk driver for Baikal-T1 SoCs - Mediatek MT6765 clock support - Support for Intel Agilex clks - Add support for X1830 and X1000 Ingenic SoC clk controllers - Add support for the new Renesas RZ/G1H (R8A7742) SoC - Add support for Qualcomm's MSM8939 Generic Clock Controller Updates: - Support IDT VersaClock 5P49V5925 - Bunch of updates for HSDK clock generation unit (CGU) driver - Start making audio and GPU clks work on Marvell MMP2/MMP3 SoCs - Add some GPU, NPU, and UFS clks to Qualcomm SM8150 driver - Enable supply regulators for GPU gdscs on Qualcomm SoCs - Add support for Si5342, Si5344 and Si5345 chips - Support custom flags in Xilinx zynq firmware - Various small fixes to the Xilinx clk driver - A single minor rounding fix for the legacy Allwinner clock support - A few patches from Abel Vesa as preparation of adding audiomix clock support on i.MX - A couple of cleanups from Anson Huang for i.MX clk-sscg-pll and clk-pllv3 drivers - Drop dependency on ARM64 for i.MX8M clock driver, to support aarch32 mode on aarch64 hardware - A series from Peng Fan to improve i.MX8M clock drivers, using composite clock for core and bus clk slice - Set a better parent clock for flexcan on i.MX6UL to support CiA102 defined bit rates - A couple changes for EMC frequency scaling on Tegra210 - Support for CPU frequency scaling on Tegra20/Tegra30 - New clk gate for CSI test pattern generator on Tegra210 - Regression fixes for Samsung exynos542x and exynos5433 SoCs - Use of fallthrough; attribute for Samsung s3c24xx - Updates and fixup HDMI and video clocks on Meson8b - Fixup reset polarity on Meson8b - Fix GPU glitch free mux switch on Meson gx and g12 - A minor fix for the currently unused suspend/resume handling on Renesas RZ/A1 and RZ/A2 - Two more conversions of Renesas DT bindings to json-schema - Add support for the USB 2.0 clock selector on Renesas R-Car M3-W+" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (155 commits) clk: mediatek: Remove ifr{0,1}_cfg_regs structures clk: baikal-t1: remove redundant assignment to variable 'divider' clk: baikal-t1: fix spelling mistake "Uncompatible" -> "Incompatible" dt-bindings: clock: Add a missing include to MMP Audio Clock binding dt: Add bindings for IDT VersaClock 5P49V5925 clk: vc5: Add support for IDT VersaClock 5P49V6965 clk: Add Baikal-T1 CCU Dividers driver clk: Add Baikal-T1 CCU PLLs driver dt-bindings: clk: Add Baikal-T1 CCU Dividers binding dt-bindings: clk: Add Baikal-T1 CCU PLLs binding clk: mediatek: assign the initial value to clk_init_data of mtk_mux clk: mediatek: Add MT6765 clock support clk: mediatek: add mt6765 clock IDs dt-bindings: clock: mediatek: document clk bindings vcodecsys for Mediatek MT6765 SoC dt-bindings: clock: mediatek: document clk bindings mipi0a for Mediatek MT6765 SoC dt-bindings: clock: mediatek: document clk bindings for Mediatek MT6765 SoC CLK: HSDK: CGU: add support for 148.5MHz clock CLK: HSDK: CGU: support PLL bypassing CLK: HSDK: CGU: check if PLL is bypassed first clk: clk-si5341: Add support for the Si5345 series ... |
||
Rafael J. Wysocki
|
64c7d7ea22 |
PM: runtime: clk: Fix clk_pm_runtime_get() error path
clk_pm_runtime_get() assumes that the PM-runtime usage counter will
be dropped by pm_runtime_get_sync() on errors, which is not the case,
so PM-runtime references to devices acquired by the former are leaked
on errors returned by the latter.
Fix this by modifying clk_pm_runtime_get() to drop the reference if
pm_runtime_get_sync() returns an error.
Fixes:
|
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YueHaibing
|
782fe98b93 |
clk: Remove unused inline function clk_debug_reparent
There's no callers in-tree anymore. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lkml.kernel.org/r/20200505083001.52564-1-yuehaibing@huawei.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
||
Marc Zyngier
|
018d4671b9 |
clk: Unlink clock if failed to prepare or enable
On failing to prepare or enable a clock, remove the core structure
from the list it has been inserted as it is about to be freed.
This otherwise leads to random crashes when subsequent clocks get
registered, during which parsing of the clock tree becomes adventurous.
Observed with QEMU's RPi-3 emulation.
Fixes:
|
||
Linus Torvalds
|
3476195651 |
There's not much to see in the core framework this time around. Instead the
majority of the diff is the normal collection of driver additions for new SoCs and non-critical clk data fixes and updates. The framework must be middle aged. The two biggest directories in the diffstat show that the Qualcomm and Unisoc support added a handful of big drivers for new SoCs but that's not really the whole story because those new drivers tend to add large numbers of lines of clk data. There's a handful of AT91 clk drivers added this time around too and a bunch of improvements to drivers like the i.MX driver. All around lots of updates and fixes in various clk drivers which is good to see. The core framework has only one real major change which has been baking in next for the past couple months. It fixes the framework so that it stops caching a clk's phase when the phase clk_op returns an error. Before this change we would consider some negative errno as a phase and that just doesn't make sense. Core: - Don't show clk phase when it is invalid New Drivers: - Add support for Unisoc SC9863A clks - Qualcomm SM8250 RPMh and MSM8976 RPM clks - Qualcomm SM8250 Global Clock Controller (GCC) support - Qualcomm SC7180 Modem Clock Controller (MSS CC) support - EHRPWM's TimeBase clock(TBCLK) for TI AM654 SoCs - Support PMC clks on at91sam9n12, at91rm9200, sama5d3, and at91sam9g45 SoCs Updates: - GPU GX GDSC support on Qualcomm sc7180 - Fixes and improvements for the Marvell MMP2/MMP3 SoC clk drivers - A series from Anson to convert i.MX8 clock bindings to json-schema - Update i.MX pll14xx driver to include new frequency entries for pll1443x table, and return error for invalid PLL type - Add missing of_node_put() call for a number of i.MX clock drivers - Drop flag CLK_IS_CRITICAL from 'A53_CORE' mux clock, as we already have the flag on its child cpu clock - Fix a53 cpu clock for i.MX8 drivers to get it source from ARM PLL via CORE_SEL slice, and source from A53 CCM clk root when we need to change ARM PLL frequency. Thus, we can support core running above 1GHz safely - Update i.MX pfdv2 driver to check zero rate and use determine_rate for getting the best rate - Add CLKO2 for imx8mm, SNVS clock for imx8mn, and PXP clock for imx7d - Remove PMC clks from Tegra clk driver - Improved clock/reset handling for the Renesas R-Car USB2 Clock Selector - Conversion to json-schema of the Renesas CPG/MSSR DT bindings - Add Crypto clocks on Renesas R-Car M3-W/W+, M3-N, E3, and D3 - Add RPC (QSPI/HyperFLASH) clocks on Renesas R-Car H3, M3-W/W+, and M3-N - Update Amlogic audio clock gate hierarchy for meson8 and gxbb - Update Amlogic g12a spicc clock sources - Support for Ingenic X1000 TCU clks -----BEGIN PGP SIGNATURE----- iQJFBAABCAAvFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAl6JDxURHHNib3lkQGtl cm5lbC5vcmcACgkQrQKIl8bklSU51A/+OzAA4HyywcSwLWMhUbyWI0hWis8/Gdtv /tIOPY/+J/Wi+2vFXoZEQWr/GViEEC1ylQwtkc/cm1WklEka/+q+GJFawyyIfX2i ovofDWw5lJd4/ACaOqV4ryEppwHnPUvASvoIOUXX6IwauNQzI0dRZWTOLTg2YW7x uvI5OtQ8o71+bM+VL1tuhWvN/4Zx9tALNU9yhaRhHdafR+xQ0d4x5bBQo8MG/2E0 3xIbRqGbhO6XfNiKAjgKcI3jtHn006LK1/1AjyXUETWzu5Zcg2SYb/YAah39RKLZ FTV+xY39C8JBLPt6ZLrBu9mPDcoQOWohmnDLki0qm65cfVs/tbDX3kwp3ixCly7y jSCqNpl7RuWcbjMe8YesakhJc1IFICQts08KsM6dPipL+7iAv++fNQrfrnXf0cDx cPCgDkepos/aRhNXmVFdxf2FRKkIQjYpdAPFdYSvLv6MK0Dk6G7/EhOOXA10Z2BU BojY8tUx/YaC8sRbnZlhitYfpqDVFzdihL2G6W31iUbt1sKYR6t6Szhct2EbRTOQ 69bUy2lw7M8pk1Remp0LqdrVUDYLy0/X3dVaa/teIaZt2Ac1NnWzHw9LMmnlFFEG GxuZy5Q5fCKbAf0tSkD4Gzb9z8f0pzAyfdlpGsY7+eEEWloc4yNFCcFcNyzJTXWV 4kdye0klUPs= =ZoI6 -----END PGP SIGNATURE----- Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "There's not much to see in the core framework this time around. Instead the majority of the diff is the normal collection of driver additions for new SoCs and non-critical clk data fixes and updates. The framework must be middle aged. The two biggest directories in the diffstat show that the Qualcomm and Unisoc support added a handful of big drivers for new SoCs but that's not really the whole story because those new drivers tend to add large numbers of lines of clk data. There's a handful of AT91 clk drivers added this time around too and a bunch of improvements to drivers like the i.MX driver. All around lots of updates and fixes in various clk drivers which is good to see. The core framework has only one real major change which has been baking in next for the past couple months. It fixes the framework so that it stops caching a clk's phase when the phase clk_op returns an error. Before this change we would consider some negative errno as a phase and that just doesn't make sense. Core: - Don't show clk phase when it is invalid New Drivers: - Add support for Unisoc SC9863A clks - Qualcomm SM8250 RPMh and MSM8976 RPM clks - Qualcomm SM8250 Global Clock Controller (GCC) support - Qualcomm SC7180 Modem Clock Controller (MSS CC) support - EHRPWM's TimeBase clock(TBCLK) for TI AM654 SoCs - Support PMC clks on at91sam9n12, at91rm9200, sama5d3, and at91sam9g45 SoCs Updates: - GPU GX GDSC support on Qualcomm sc7180 - Fixes and improvements for the Marvell MMP2/MMP3 SoC clk drivers - A series from Anson to convert i.MX8 clock bindings to json-schema - Update i.MX pll14xx driver to include new frequency entries for pll1443x table, and return error for invalid PLL type - Add missing of_node_put() call for a number of i.MX clock drivers - Drop flag CLK_IS_CRITICAL from 'A53_CORE' mux clock, as we already have the flag on its child cpu clock - Fix a53 cpu clock for i.MX8 drivers to get it source from ARM PLL via CORE_SEL slice, and source from A53 CCM clk root when we need to change ARM PLL frequency. Thus, we can support core running above 1GHz safely - Update i.MX pfdv2 driver to check zero rate and use determine_rate for getting the best rate - Add CLKO2 for imx8mm, SNVS clock for imx8mn, and PXP clock for imx7d - Remove PMC clks from Tegra clk driver - Improved clock/reset handling for the Renesas R-Car USB2 Clock Selector - Conversion to json-schema of the Renesas CPG/MSSR DT bindings - Add Crypto clocks on Renesas R-Car M3-W/W+, M3-N, E3, and D3 - Add RPC (QSPI/HyperFLASH) clocks on Renesas R-Car H3, M3-W/W+, and M3-N - Update Amlogic audio clock gate hierarchy for meson8 and gxbb - Update Amlogic g12a spicc clock sources - Support for Ingenic X1000 TCU clks" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (146 commits) clk: sprd: fix to get a correct ibias of pll dt-bindings: imx8mm-clock: Fix the file path dt-bindings: imx8mq-clock: Fix the file path clk: qcom: rpmh: Drop unnecessary semicolons clk: qcom: rpmh: Simplify clk_rpmh_bcm_send_cmd() clk: tegra: Use NULL for pointer initialization clk: sprd: add clocks support for SC9863A clk: sprd: support to get regmap from parent node clk: sprd: Add macros for referencing parents without strings clk: sprd: Add dt-bindings include file for SC9863A dt-bindings: clk: sprd: add bindings for sc9863a clock controller dt-bindings: clk: sprd: rename the common file name sprd.txt to SoC specific clk: sprd: add gate for pll clocks MAINTAINERS: dt: update reference for arm-integrator.txt clk: mmp2: Fix bit masks for LCDC I/O and pixel clocks clk: mmp2: Add clock for fifth SD HCI on MMP3 dt-bindings: marvell,mmp2: Add clock id for the fifth SD HCI on MMP3 clk: mmp2: Add clocks for the thermal sensors dt-bindings: marvell,mmp2: Add clock ids for the thermal sensors clk: mmp2: add the GPU clocks ... |
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Stephen Boyd
|
53a2cc5cc3 |
Merge branches 'clk-ti', 'clk-ingenic', 'clk-typo', 'clk-at91', 'clk-mmp2' and 'clk-arm-icst' into clk-next
- EHRPWM's TimeBase clock(TBCLK) for TI AM654 SoCs - Support PMC clks on at91sam9n12, at91rm9200, sama5d3, and at91sam9g45 SoCs - Fixes and improvements for the Marvell MMP2/MMP3 SoC clk drivers * clk-ti: clk: keystone: Add new driver to handle syscon based clocks dt-bindings: clock: Add binding documentation for TI EHRPWM TBCLK * clk-ingenic: clk: ingenic/TCU: Fix round_rate returning error clk: ingenic/jz4770: Exit with error if CGU init failed clk: JZ4780: Add function for enable the second core. clk: Ingenic: Add support for TCU of X1000. * clk-typo: clk: Fix trivia typo in comment exlusive => exclusive * clk-at91: clk: at91: add at91rm9200 pmc driver clk: at91: add at91sam9n12 pmc driver clk: at91: add sama5d3 pmc driver clk: at91: add at91sam9g45 pmc driver clk: at91: usb: introduce num_parents in driver's structure clk: at91: usb: use proper usbs_mask clk: at91: sam9x60: fix usb clock parents clk: at91: usb: continue if clk_hw_round_rate() return zero clk: at91: sam9x60: Don't use audio PLL * clk-mmp2: clk: mmp2: Fix bit masks for LCDC I/O and pixel clocks clk: mmp2: Add clock for fifth SD HCI on MMP3 dt-bindings: marvell,mmp2: Add clock id for the fifth SD HCI on MMP3 clk: mmp2: Add clocks for the thermal sensors dt-bindings: marvell,mmp2: Add clock ids for the thermal sensors clk: mmp2: add the GPU clocks dt-bindings: marvell,mmp2: Add clock ids for the GPU clocks clk: mmp2: Add PLLs that are available on MMP3 dt-bindings: marvell,mmp2: Add clock ids for MMP3 PLLs clk: mmp2: Check for MMP3 dt-bindings: clock: Add MMP3 compatible string clk: mmp2: Stop pretending PLL outputs are constant clk: mmp2: Add support for PLL clock sources dt-bindings: clock: Convert marvell,mmp2-clock to json-schema clk: mmp2: Constify some strings clk: mmp2: Remove a unused prototype * clk-arm-icst: MAINTAINERS: dt: update reference for arm-integrator.txt clk: versatile: Add device tree probing for IM-PD1 clocks clk: versatile: Export icst_clk_setup() dt-bindings: clock: Create YAML schema for ICST clocks |
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Stephen Boyd
|
2d11e9a1fd |
Merge branches 'clk-phase-errors', 'clk-amlogic', 'clk-renesas' and 'clk-allwinner' into clk-next
- Don't show clk phase when it is invalid * clk-phase-errors: clk: rockchip: fix mmc get phase clk: Fix phase init check clk: Bail out when calculating phase fails during clk registration clk: Move rate and accuracy recalc to mostly consumer APIs clk: Use 'parent' to shorten lines in __clk_core_init() clk: Don't cache errors from clk_ops::get_phase() * clk-amlogic: clk: meson: meson8b: set audio output clock hierarchy clk: meson: g12a: add support for the SPICC SCLK Source clocks dt-bindings: clk: g12a-clkc: add SPICC SCLK Source clock IDs clk: meson: gxbb: set audio output clock hierarchy clk: meson: gxbb: add the gxl internal dac gate dt-bindings: clk: meson: add the gxl internal dac gate * clk-renesas: dt-bindings: clock: renesas: cpg-mssr: Convert to json-schema clk: renesas: rcar-usb2-clock-sel: Add reset_control clk: renesas: rcar-usb2-clock-sel: Add multiple clocks management dt-bindings: clock: renesas: rcar-usb2-clock-sel: Add power-domains and resets properties dt-bindings: clock: renesas: rcar-usb2-clock-sel: Fix clock[-name]s properties clk: renesas: Remove use of ARCH_R8A7795 clk: renesas: r8a77965: Add RPC clocks clk: renesas: r8a7796: Add RPC clocks clk: renesas: r8a7795: Add RPC clocks clk: renesas: rcar-gen3: Add CCREE clocks * clk-allwinner: clk: sunxi-ng: sun8i-de2: Sort structures clk: sunxi-ng: sun8i-de2: Add R40 specific quirks clk: sunxi-ng: sun8i-de2: Add rotation core clocks and reset for A83T clk: sunxi-ng: sun8i-de2: Don't reuse A83T resets clk: sunxi-ng: sun8i-de2: H6 doesn't have rotate core clk: sunxi-ng: sun8i-de2: Add rotation core clocks and reset for A64 clk: sunxi-ng: sun8i-de2: Split out H5 definitions clk: sunxi-ng: a64: Export MBUS clock |
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Andy Shevchenko
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a37a5a9d71 |
clk: Fix trivia typo in comment exlusive => exclusive
Fix trivia typo in comment exlusive => exclusive. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lkml.kernel.org/r/20200310135507.87959-1-andriy.shevchenko@linux.intel.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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Maxime Ripard
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c3944ec8c6 |
clk: Fix phase init check
Commit |
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Geert Uytterhoeven
|
be545c79b2 |
clk: Fix continuation of of_clk_detect_critical()
The second line of the of_clk_detect_critical() function signature is not indented according to coding style. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lkml.kernel.org/r/20191206133414.23925-1-geert+renesas@glider.be Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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Stephen Boyd
|
2760878662 |
clk: Bail out when calculating phase fails during clk registration
Bail out of clk registration if we fail to get the phase for a clk that has a clk_ops::get_phase() callback. Print a warning too so that driver authors can easily figure out that some clk is unable to read back phase information at boot. Cc: Douglas Anderson <dianders@chromium.org> Cc: Heiko Stuebner <heiko@sntech.de> Suggested-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20200205232802.29184-5-sboyd@kernel.org Acked-by: Jerome Brunet <jbrunet@baylibre.com> |
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Stephen Boyd
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0daa376d83 |
clk: Move rate and accuracy recalc to mostly consumer APIs
There's some confusion about when recalc is done for the rate and accuracy clk consumer APIs in relation to the prepare lock being taken. Oddly enough, we take the lock again in debugfs APIs so that we can call the internal "clk_core" APIs to get these fields with any necessary recalculations. Instead of having this confusion, let's introduce a recalc variant of these two consumer APIs as internal helpers and call them from the consumer APIs and the debugfs code so that we don't take the lock more than once. Cc: Douglas Anderson <dianders@chromium.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20200205232802.29184-4-sboyd@kernel.org Acked-by: Jerome Brunet <jbrunet@baylibre.com> |
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Stephen Boyd
|
768a5d4f63 |
clk: Use 'parent' to shorten lines in __clk_core_init()
Some lines are getting long in this function. Let's move 'parent' up to the top of the function and use it in many places whenever there is a parent for a clk. This shortens some lines by avoiding core->parent-> indirections. Cc: Douglas Anderson <dianders@chromium.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20200205232802.29184-3-sboyd@kernel.org Acked-by: Jerome Brunet <jbrunet@baylibre.com> |
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Stephen Boyd
|
f21cf9c77e |
clk: Don't cache errors from clk_ops::get_phase()
We don't check for errors from clk_ops::get_phase() before storing away the result into the clk_core::phase member. This can lead to some fairly confusing debugfs information if these ops do return an error. Let's skip the store when this op fails to fix this. While we're here, move the locking outside of clk_core_get_phase() to simplify callers from the debugfs side. Cc: Douglas Anderson <dianders@chromium.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20200205232802.29184-2-sboyd@kernel.org Acked-by: Jerome Brunet <jbrunet@baylibre.com> |
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Geert Uytterhoeven
|
4a4472fdc0 |
of: clk: Make of_clk_get_parent_{count,name}() parameter const
of_clk_get_parent_count() and of_clk_get_parent_name() never modify the device nodes passed, so they can be const. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lkml.kernel.org/r/20200212094317.1150-1-geert+renesas@glider.be Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
||
Linus Torvalds
|
cc12071ff3 |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: "The rest of MM and the rest of everything else: hotfixes, ipc, misc, procfs, lib, cleanups, arm" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (67 commits) ARM: dma-api: fix max_pfn off-by-one error in __dma_supported() treewide: remove redundant IS_ERR() before error code check include/linux/cpumask.h: don't calculate length of the input string lib: new testcases for bitmap_parse{_user} lib: rework bitmap_parse() lib: make bitmap_parse_user a wrapper on bitmap_parse lib: add test for bitmap_parse() bitops: more BITS_TO_* macros lib/string: add strnchrnul() proc: convert everything to "struct proc_ops" proc: decouple proc from VFS with "struct proc_ops" asm-generic/tlb: provide MMU_GATHER_TABLE_FREE asm-generic/tlb: rename HAVE_MMU_GATHER_NO_GATHER asm-generic/tlb: rename HAVE_MMU_GATHER_PAGE_SIZE asm-generic/tlb: rename HAVE_RCU_TABLE_FREE asm-generic/tlb: add missing CONFIG symbol asm-gemeric/tlb: remove stray function declarations asm-generic/tlb: avoid potential double flush mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush powerpc/mmu_gather: enable RCU_TABLE_FREE even for !SMP case ... |
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Masahiro Yamada
|
45586c7078 |
treewide: remove redundant IS_ERR() before error code check
'PTR_ERR(p) == -E*' is a stronger condition than IS_ERR(p). Hence, IS_ERR(p) is unneeded. The semantic patch that generates this commit is as follows: // <smpl> @@ expression ptr; constant error_code; @@ -IS_ERR(ptr) && (PTR_ERR(ptr) == - error_code) +PTR_ERR(ptr) == - error_code // </smpl> Link: http://lkml.kernel.org/r/20200106045833.1725-1-masahiroy@kernel.org Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Cc: Julia Lawall <julia.lawall@lip6.fr> Acked-by: Stephen Boyd <sboyd@kernel.org> [drivers/clk/clk.c] Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> [GPIO] Acked-by: Wolfram Sang <wsa@the-dreams.de> [drivers/i2c] Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [acpi/scan.c] Acked-by: Rob Herring <robh@kernel.org> Cc: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Stephen Boyd
|
6e7a9f0c4e |
Merge branches 'clk-debugfs-danger', 'clk-basic-hw', 'clk-renesas', 'clk-amlogic' and 'clk-allwinner' into clk-next
- Support dangerous debugfs actions on clks with dead code - Convert gpio, fixed-factor, mux, gate, divider basic clks to hw based APIs * clk-debugfs-danger: clk: Add support for setting clk_rate via debugfs * clk-basic-hw: clk: divider: Add support for specifying parents via DT/pointers clk: gate: Add support for specifying parents via DT/pointers clk: mux: Add support for specifying parents via DT/pointers clk: asm9260: Use parent accuracy in fixed rate clk clk: fixed-rate: Document that accuracy isn't a rate clk: fixed-rate: Add clk flags for parent accuracy clk: fixed-rate: Add support for specifying parents via DT/pointers clk: fixed-rate: Document accuracy member clk: fixed-rate: Move to_clk_fixed_rate() to C file clk: fixed-rate: Remove clk_register_fixed_rate_with_accuracy() clk: fixed-rate: Convert to clk_hw based APIs clk: gpio: Use DT way of specifying parents * clk-renesas: clk: renesas: Prepare for split of R-Car H3 config symbol dt-bindings: clock: renesas: cpg-mssr: Fix r8a774b1 typo clk: renesas: r7s9210: Add SPIBSC clock clk: renesas: rcar-gen3: Allow changing the RPC[D2] clocks clk: renesas: Remove use of ARCH_R8A7796 clk: renesas: rcar-gen2: Change multipliers and dividers to u8 * clk-amlogic: clk: clarify that clk_set_rate() does updates from top to bottom clk: meson: meson8b: make the CCF use the glitch-free mali mux clk: meson: pll: Fix by 0 division in __pll_params_to_rate() clk: meson: g12a: fix missing uart2 in regmap table clk: meson: meson8b: use of_clk_hw_register to register the clocks clk: meson: meson8b: don't register the XTAL clock when provided via OF clk: meson: meson8b: change references to the XTAL clock to use [fw_]name clk: meson: meson8b: use clk_hw_set_parent in the CPU clock notifier clk: meson: add a driver for the Meson8/8b/8m2 DDR clock controller dt-bindings: clock: meson8b: add the clock inputs dt-bindings: clock: add the Amlogic Meson8 DDR clock controller binding * clk-allwinner: clk: sunxi: a23/a33: Export the MIPI PLL clk: sunxi: a31: Export the MIPI PLL clk: sunxi-ng: a64: export CLK_CPUX clock for DVFS clk: sunxi-ng: add mux and pll notifiers for A64 CPU clock clk: sunxi-ng: r40: Export MBUS clock clk: sunxi: use of_device_get_match_data |
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Stephen Boyd
|
36bf7a5bdd |
Merge branches 'clk-uniphier', 'clk-warn-critical', 'clk-ux500', 'clk-kconfig' and 'clk-at91' into clk-next
- Warn about critical clks that fail to enable or prepare - Detect more PRMCU variants in ux500 driver * clk-uniphier: clk: uniphier: Add SCSSI clock gate for each channel * clk-warn-critical: clk: Warn about critical clks that fail to enable clk: Don't try to enable critical clocks if prepare failed clk: tegra: Fix double-free in tegra_clk_init() clk: samsung: exynos5420: Keep top G3D clocks enabled clk: qcom: Avoid SMMU/cx gdsc corner cases clk: qcom: gcc-sc7180: Fix setting flag for votable GDSCs clk: Move clk_core_reparent_orphans() under CONFIG_OF clk: at91: fix possible deadlock clk: walk orphan list on clock provider registration clk: imx: pll14xx: fix clk_pll14xx_wait_lock clk: imx: clk-imx7ulp: Add missing sentinel of ulp_div_table clk: imx: clk-composite-8m: add lock to gate/mux * clk-ux500: clk: ux500: Fix up the SGA clock for some variants * clk-kconfig: clk: Fix Kconfig indentation * clk-at91: clk: at91: sam9x60: fix programmable clock prescaler clk: at91: sam9x60-pll: adapt PMC_PLL_ACR default value |
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Stephen Boyd
|
28db9a8c82 |
Merge branches 'clk-init-allocation', 'clk-unused' and 'clk-register-dt-node-better' into clk-next
- Let clk_ops::init() return an error code - Add a clk_ops::terminate() callback to undo clk_ops::init() * clk-init-allocation: clk: add terminate callback to clk_ops clk: let init callback return an error code clk: actually call the clock init before any other callback of the clock * clk-unused: clk: bm1800: Remove set but not used variable 'fref' * clk-register-dt-node-better: clk: Use parent node pointer during registration if necessary |
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Geert Uytterhoeven
|
37215da555 |
clk: Add support for setting clk_rate via debugfs
For testing, it is useful to be able to specify a clock rate manually.
As this is a dangerous feature, it is not enabled by default.
Users need to modify the source directly and #define
CLOCK_ALLOW_WRITE_DEBUGFS.
This follows the spirit of commit
|
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Stephen Boyd
|
2d26999261 |
clk: Warn about critical clks that fail to enable
If we don't warn here users of the CLK_IS_CRITICAL flag may not know that their clk isn't actually enabled because it silently fails to enable. Let's print a warning in that case so developers find these problems faster. Suggested-by: Jerome Brunet <jbrunet@baylibre.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20200102005503.71923-1-sboyd@kernel.org Reviewed-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> |
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Stephen Boyd
|
9011f92622 |
clk: Use parent node pointer during registration if necessary
Sometimes clk drivers are attached to devices which are children of a parent device that is connected to a node in DT. This happens when devices are MFD-ish and the parent device driver mostly registers child devices to match against drivers placed in their respective subsystem directories like drivers/clk, drivers/regulator, etc. When the clk driver calls clk_register() with a device pointer, that struct device pointer won't have a device_node associated with it because it was created purely in software as a way to partition logic to a subsystem. This causes problems for the way we find parent clks for the clks registered by these child devices because we look at the registering device's device_node pointer to lookup 'clocks' and 'clock-names' properties. Let's use the parent device's device_node pointer if the registering device doesn't have a device_node but the parent does. This simplifies clk registration code by avoiding the need to assign some device_node to the device registering the clk. Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Reported-by: Niklas Cassel <niklas.cassel@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20191230190455.141339-1-sboyd@kernel.org [sboyd@kernel.org: Fixup kernel-doc notation] Reviewed-by: Niklas Cassel <nks@flawful.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org> |
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Guenter Roeck
|
12ead77432 |
clk: Don't try to enable critical clocks if prepare failed
The following traceback is seen if a critical clock fails to prepare.
bcm2835-clk 3f101000.cprman: plld: couldn't lock PLL
------------[ cut here ]------------
Enabling unprepared plld_per
WARNING: CPU: 1 PID: 1 at drivers/clk/clk.c:1014 clk_core_enable+0xcc/0x2c0
...
Call trace:
clk_core_enable+0xcc/0x2c0
__clk_register+0x5c4/0x788
devm_clk_hw_register+0x4c/0xb0
bcm2835_register_pll_divider+0xc0/0x150
bcm2835_clk_probe+0x134/0x1e8
platform_drv_probe+0x50/0xa0
really_probe+0xd4/0x308
driver_probe_device+0x54/0xe8
device_driver_attach+0x6c/0x78
__driver_attach+0x54/0xd8
...
Check return values from clk_core_prepare() and clk_core_enable() and
bail out if any of those functions returns an error.
Cc: Jerome Brunet <jbrunet@baylibre.com>
Fixes:
|
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Jerome Brunet
|
f873744c29 |
clk: add terminate callback to clk_ops
Add a terminate callback to the clk_ops to release the resources claimed in .init() Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lkml.kernel.org/r/20190924123954.31561-4-jbrunet@baylibre.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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Jerome Brunet
|
89d079dc17 |
clk: let init callback return an error code
If the init callback is allowed to request resources, it needs a return value to report the outcome of such a request. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lkml.kernel.org/r/20190924123954.31561-3-jbrunet@baylibre.com Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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Jerome Brunet
|
f6fa75ca91 |
clk: actually call the clock init before any other callback of the clock
__clk_init_parent() will call the .get_parent() callback of the clock
so .init() must run before.
Fixes:
|
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Olof Johansson
|
c771256ee7 |
clk: Move clk_core_reparent_orphans() under CONFIG_OF
A recent addition exposed a helper that is only used for CONFIG_OF. Move
it into the CONFIG_OF zone in this file to make the compiler stop
warning about an unused function.
Fixes:
|
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Jerome Brunet
|
66d9506440 |
clk: walk orphan list on clock provider registration
So far, we walked the orphan list every time a new clock was registered
in CCF. This was fine since the clocks were only referenced by name.
Now that the clock can be referenced through DT, it is not enough:
* Controller A register first a reference clocks from controller B
through DT.
* Controller B register all its clocks then register the provider.
Each time controller B registers a new clock, the orphan list is walked
but it can't match since the provider is registered yet. When the
provider is finally registered, the orphan list is not walked unless
another clock is registered afterward.
This can lead to situation where some clocks remain orphaned even if
the parent is available.
Walking the orphan list on provider registration solves the problem.
Reported-by: Jian Hu <jian.hu@amlogic.com>
Fixes:
|
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Stephen Boyd
|
ec16ffe36d |
Merge branches 'clk-ingenic', 'clk-init-leak', 'clk-ux500' and 'clk-bitmain' into clk-next
- Support CGU in Ingenix X1000 - Support Bitmain BM1880 clks * clk-ingenic: clk: ingenic: Allow drivers to be built with COMPILE_TEST clk: Ingenic: Add CGU driver for X1000. dt-bindings: clock: Add X1000 bindings. * clk-init-leak: clk: mark clk_disable_unused() as __init clk: Fix memory leak in clk_unregister() * clk-ux500: MAINTAINERS: Update section for Ux500 clock drivers * clk-bitmain: MAINTAINERS: Add entry for BM1880 SoC clock driver clk: Add common clock driver for BM1880 SoC dt-bindings: clock: Add devicetree binding for BM1880 SoC clk: Add clk_hw_unregister_composite helper function definition clk: Zero init clk_init_data in helpers |
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Rasmus Villemoes
|
564f86d384 |
clk: mark clk_disable_unused() as __init
clk_disable_unused is only called once, as a late_initcall, so reclaim a bit of memory by marking it (and the functions and data it is the sole user of) as __init/__initdata. This moves ~1900 bytes from .text to .init.text for a imx_v6_v7_defconfig. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Link: https://lkml.kernel.org/r/20191004094826.8320-1-linux@rasmusvillemoes.dk Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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Kishon Vijay Abraham I
|
8247470772 |
clk: Fix memory leak in clk_unregister()
Memory allocated in alloc_clk() for 'struct clk' and
'const char *con_id' while invoking clk_register() is never freed
in clk_unregister(), resulting in kmemleak showing the following
backtrace.
backtrace:
[<00000000546f5dd0>] kmem_cache_alloc+0x18c/0x270
[<0000000073a32862>] alloc_clk+0x30/0x70
[<0000000082942480>] __clk_register+0xc8/0x760
[<000000005c859fca>] devm_clk_register+0x54/0xb0
[<00000000868834a8>] 0xffff800008c60950
[<00000000d5a80534>] platform_drv_probe+0x50/0xa0
[<000000001b3889fc>] really_probe+0x108/0x348
[<00000000953fa60a>] driver_probe_device+0x58/0x100
[<0000000008acc17c>] device_driver_attach+0x6c/0x90
[<0000000022813df3>] __driver_attach+0x84/0xc8
[<00000000448d5443>] bus_for_each_dev+0x74/0xc8
[<00000000294aa93f>] driver_attach+0x20/0x28
[<00000000e5e52626>] bus_add_driver+0x148/0x1f0
[<000000001de21efc>] driver_register+0x60/0x110
[<00000000af07c068>] __platform_driver_register+0x40/0x48
[<0000000060fa80ee>] 0xffff800008c66020
Fix it here.
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Link: https://lkml.kernel.org/r/20191022071153.21118-1-kishon@ti.com
Fixes:
|
||
Sowjanya Komatineni
|
d9b86cc482 |
clk: Add API to get index of the clock parent
This patch adds a new clk_hw_get_parent_index() function that can be used to retrieve the index of a given clock's parent. This can be useful for restoring a clock on system resume. Reviewed-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> |
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Linus Torvalds
|
a703d279c5 |
We have a small collection of core framework updates this time, mostly around
clk registration by clk providers and debugfs "nice to haves" for rate constraints. I'll highlight that we're now setting the clk_init_data pointer inside struct clk_hw to NULL during clk_register(), which may break some drivers that thought they could use that pointer during normal operations. That change has been sitting in next for a while now but maybe something is still broken. We'l see. Other than that the core framework changes aren't invasive and they're fixing bugs, simplifying, and making things better. On the clk driver side we got the usual addition of new SoC support, new features for existing drivers, and bug fixes scattered throughout. The biggest diffstat is the Amlogic driver that gained CPU clk support in addition to migrating to the new way of specifying clk parents. After that the Qualcomm, i.MX, Mediatek, and Rockchip clk drivers got support for various new SoCs and clock controllers from those vendors. Core: - Drop NULL checks in clk debugfs - Add min/max rates to clk debugfs - Set clk_init_data pointer inside clk_hw to NULL after registration - Make clk_bulk_get_all() return an 'id' corresponding to clock-names - Evict parents from parent cache when they're unregistered New Drivers: - Add clock driver for i.MX8MN SoCs - Support aspeed AST2600 SoCs - Support for Mediatek MT6779 SoCs - Support qcom SM8150 GCC and RPMh clks - Support qcom QCS404 WCSS clks - Add CPU clock support for Armada 7K/8K (specifically AP806 and AP807) - Addition of clock driver for Rockchip rk3308 SoCs Updates: - Add regulator support to the cdce925 clk driver - Add support for Raspberry Pi 4 bcm2711 SoCs - Add SDIO gate support to aspeed driver - Add missing of_node_put() calls in various clk drivers - Migrate Amlogic driver to new clock parent description method - Add DVFS support to Amlogic Meson g12 - Add Amlogic Meson g12a reset support to the axg audio clock controller - Add sm1 support to the Amlogic Meson g12a clock controller - Switch i.MX8MM clock driver to platform driver - Add Hifi4 DSP related clocks for i.MX8QXP SoC - Fix Audio PLL setting and parent clock for USB - Misc i.MX8 clock driver improvements and corrections - Set floor ops for Qualcomm SD clks so that rounding works - Fix "always-on" Clock Domains on Renesas R-Car M1A, RZ/A1, RZ/A2, and RZ/N1 - Enable the Allwinner V3 SoC and fix the i2s clock for H6 -----BEGIN PGP SIGNATURE----- iQJFBAABCAAvFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAl2FQEMRHHNib3lkQGtl cm5lbC5vcmcACgkQrQKIl8bklSXHQw//XHnT5DPphpP8ua4x8wuJARdf0n58Vcdb 8fZxxs4QN7uuKhg6aMI4kgwBn+9tgIr65hvN0Gn9Wm5Bsbs3XZvdIo7DvQDrYg7W NE7192iy2Dg+m+C24YLO7ceZgqVepbjeN+6oeUK88Ui+H+XlOKfJvjfnJ+HxN9Ip sHnLakIxqlaWvzwTUOHOcsrHyQD2OXupbfNMxLnmr8T/kBh/nqwNEG3aYCppICsg LpJL9Bv2V3QSk8uBszTgKK5ybWo14aDQPx4rrhgsneD0h7DSnx6M3jvngxMra6W0 fnare4FQlkbPmgAj+XtB7RdCzsuwoke/7TJsvDLQrEbyOYTGnl7bYS8NOSrIg5Tp w4UPpXrMTQK7e/6okL1OJYAXXYurxep8QjsjpF3nahxC3IVzAZ9uio6ehJrDNEPC ErqOSPQTMkjOA2npovsQKCH3Mv/yGzAigpsQassPneWwp//NupMLKmmIm6645Xw2 6kqSlVFYz81lhzIylGEQKIoiLcszpB6qqWUzGVt0B94joRbvg0m//8BDaZbHeTqP m/acRYHRC1utpkAZEnBZRsd79cI+EeuARROUfGsoUMfOueTc4+qQ7Yrjbj4rTvnC lLM9Qz9h1QkfyRF1IHHPw/fS5twpNTUdO9c1+3qzS3AQfl5dZWpChoF9Um+ycVPR nQrpk05pHEY= =z8wK -----END PGP SIGNATURE----- Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "We have a small collection of core framework updates this time, mostly around clk registration by clk providers and debugfs "nice to haves" for rate constraints. I'll highlight that we're now setting the clk_init_data pointer inside struct clk_hw to NULL during clk_register(), which may break some drivers that thought they could use that pointer during normal operations. That change has been sitting in next for a while now but maybe something is still broken. We'l see. Other than that the core framework changes aren't invasive and they're fixing bugs, simplifying, and making things better. On the clk driver side we got the usual addition of new SoC support, new features for existing drivers, and bug fixes scattered throughout. The biggest diffstat is the Amlogic driver that gained CPU clk support in addition to migrating to the new way of specifying clk parents. After that the Qualcomm, i.MX, Mediatek, and Rockchip clk drivers got support for various new SoCs and clock controllers from those vendors. Core: - Drop NULL checks in clk debugfs - Add min/max rates to clk debugfs - Set clk_init_data pointer inside clk_hw to NULL after registration - Make clk_bulk_get_all() return an 'id' corresponding to clock-names - Evict parents from parent cache when they're unregistered New Drivers: - Add clock driver for i.MX8MN SoCs - Support aspeed AST2600 SoCs - Support for Mediatek MT6779 SoCs - Support qcom SM8150 GCC and RPMh clks - Support qcom QCS404 WCSS clks - Add CPU clock support for Armada 7K/8K (specifically AP806 and AP807) - Addition of clock driver for Rockchip rk3308 SoCs Updates: - Add regulator support to the cdce925 clk driver - Add support for Raspberry Pi 4 bcm2711 SoCs - Add SDIO gate support to aspeed driver - Add missing of_node_put() calls in various clk drivers - Migrate Amlogic driver to new clock parent description method - Add DVFS support to Amlogic Meson g12 - Add Amlogic Meson g12a reset support to the axg audio clock controller - Add sm1 support to the Amlogic Meson g12a clock controller - Switch i.MX8MM clock driver to platform driver - Add Hifi4 DSP related clocks for i.MX8QXP SoC - Fix Audio PLL setting and parent clock for USB - Misc i.MX8 clock driver improvements and corrections - Set floor ops for Qualcomm SD clks so that rounding works - Fix "always-on" Clock Domains on Renesas R-Car M1A, RZ/A1, RZ/A2, and RZ/N1 - Enable the Allwinner V3 SoC and fix the i2s clock for H6" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (137 commits) clk: Drop !clk checks in debugfs dumping clk: imx: imx8mn: fix pll mux bit clk: imx: imx8mm: fix pll mux bit clk: imx: clk-pll14xx: unbypass PLL by default clk: imx: pll14xx: avoid glitch when set rate clk: mvebu: ap80x: add AP807 clock support clk: mvebu: ap806: Prepare the introduction of AP807 clock support clk: mvebu: ap806: add AP-DCLK (hclk) to system controller driver clk: mvebu: ap806: be more explicit on what SaR is clk: mvebu: ap80x-cpu: add AP807 CPU clock support clk: mvebu: ap806-cpu: prepare mapping of AP807 CPU clock dt-bindings: ap806: Document AP807 clock compatible dt-bindings: ap80x: Document AP807 CPU clock compatible clk: sprd: add missing kfree clk: at91: allow 24 Mhz clock as input for PLL clk: Make clk_bulk_get_all() return a valid "id" clk: actions: Fix factor clk struct member access clk: qcom: rcg: Return failure for RCG update clk: remove extra ---help--- tags in Kconfig clk: add include guard to clk-conf.h ... |
||
Stephen Boyd
|
b6c444de05 |
Merge branches 'clk-cdce-regulator', 'clk-bcm', 'clk-evict-parent-cache' and 'clk-actions' into clk-next
- Add regulator support to the cdce925 clk driver - Add support for Raspberry Pi 4 bcm2711 SoCs - Evict parents from parent cache when they're unregistered * clk-cdce-regulator: clk: clk-cdce925: Add regulator support dt-bindings: clock: cdce925: Add regulator documentation * clk-bcm: clk: bcm2835: Mark PLLD_PER as CRITICAL clk: bcm2835: Add BCM2711_CLOCK_EMMC2 support clk: bcm2835: Introduce SoC specific clock registration dt-bindings: bcm2835-cprman: Add bcm2711 support * clk-evict-parent-cache: clk: Evict unregistered clks from parent caches * clk-actions: clk: actions: Fix factor clk struct member access |
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Stephen Boyd
|
a1ff1ce300 |
Merge branches 'clk-init-destroy', 'clk-doc', 'clk-imx' and 'clk-allwinner' into clk-next
- Set clk_init_data pointer inside clk_hw to NULL after registration * clk-init-destroy: clk: Overwrite clk_hw::init with NULL during clk_register() clk: sunxi: Don't call clk_hw_get_name() on a hw that isn't registered clk: ti: Don't reference clk_init_data after registration clk: qcom: Remove error prints from DFS registration rtc: sun6i: Don't reference clk_init_data after registration clk: zx296718: Don't reference clk_init_data after registration clk: milbeaut: Don't reference clk_init_data after registration clk: socfpga: deindent code to proper indentation phy: ti: am654-serdes: Don't reference clk_init_data after registration clk: sprd: Don't reference clk_init_data after registration clk: socfpga: Don't reference clk_init_data after registration clk: sirf: Don't reference clk_init_data after registration clk: qcom: Don't reference clk_init_data after registration clk: meson: axg-audio: Don't reference clk_init_data after registration clk: lochnagar: Don't reference clk_init_data after registration clk: actions: Don't reference clk_init_data after registration * clk-doc: clk: remove extra ---help--- tags in Kconfig clk: add include guard to clk-conf.h clk: Document of_parse_clkspec() some more clk: Remove extraneous 'for' word in comments * clk-imx: (32 commits) clk: imx: imx8mn: fix pll mux bit clk: imx: imx8mm: fix pll mux bit clk: imx: clk-pll14xx: unbypass PLL by default clk: imx: pll14xx: avoid glitch when set rate clk: imx: imx8mn: fix audio pll setting clk: imx8mn: Add necessary frequency support for ARM PLL table clk: imx8mn: Add missing rate_count assignment for each PLL structure clk: imx8mn: fix int pll clk gate clk: imx8mn: Add GIC clock clk: imx8mn: Fix incorrect parents clk: imx8mm: Fix incorrect parents clk: imx8mq: Fix sys3 pll references clk: imx8mq: Unregister clks when of_clk_add_provider failed clk: imx8mm: Unregister clks when of_clk_add_provider failed clk: imx8mq: Mark AHB clock as critical clk: imx8mn: Keep uart clocks on for early console clk: imx: Remove unused function statement clk: imx7ulp: Make sure earlycon's clock is enabled clk: imx8mm: Switch to platform driver clk: imx: imx8mm: fix audio pll setting ... * clk-allwinner: clk: sunxi-ng: h6: Allow I2S to change parent rate clk: sunxi-ng: v3s: add Allwinner V3 support clk: sunxi-ng: v3s: add missing clock slices for MMC2 module clocks dt-bindings: clk: sunxi-ccu: add compatible string for V3 CCU clk: sunxi-ng: v3s: add the missing PLL_DDR1 |
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Stephen Boyd
|
f5c7305db3 |
Merge branches 'clk-qcom', 'clk-mtk', 'clk-armada', 'clk-ingenic' and 'clk-meson' into clk-next
- Support qcom SM8150 RPMh clks - Set floor ops for qcom sd clks - Support qcom QCS404 WCSS clks - Support for Mediatek MT6779 SoCs - Add CPU clock support for Armada 7K/8K (specifically AP806 and AP807) * clk-qcom: clk: qcom: rcg: Return failure for RCG update clk: qcom: fix QCS404 TuringCC regmap clk: qcom: clk-rpmh: Add support for SM8150 dt-bindings: clock: Document SM8150 rpmh-clock compatible clk: qcom: clk-rpmh: Convert to parent data scheme dt-bindings: clock: Document the parent clocks clk: qcom: gcc: Use floor ops for SDCC clocks clk: qcom: gcc-qcs404: Use floor ops for sdcc clks clk: qcom: gcc-sdm845: Use floor ops for sdcc clks clk: qcom: define probe by index API as common API clk: qcom: Add WCSS gcc clock control for QCS404 clk: qcom: msm8916: Don't build by default clk: qcom: gcc: Add global clock controller driver for SM8150 dt-bindings: clock: Document gcc bindings for SM8150 clk: qcom: clk-alpha-pll: Add support for Trion PLLs clk: qcom: clk-alpha-pll: Remove post_div_table checks clk: qcom: clk-alpha-pll: Remove unnecessary cast * clk-mtk: clk: mediatek: Runtime PM support for MT8183 mcucfg clock provider clk: mediatek: Register clock gate with device clk: mediatek: add pericfg clocks for MT8183 dt-bindings: clock: mediatek: add pericfg for MT8183 clk: mediatek: Add MT6779 clock support clk: mediatek: Add dt-bindings for MT6779 clocks dt-bindings: mediatek: bindings for MT6779 clk clk: reset: Modify reset-controller driver * clk-armada: clk: mvebu: ap80x: add AP807 clock support clk: mvebu: ap806: Prepare the introduction of AP807 clock support clk: mvebu: ap806: add AP-DCLK (hclk) to system controller driver clk: mvebu: ap806: be more explicit on what SaR is clk: mvebu: ap80x-cpu: add AP807 CPU clock support clk: mvebu: ap806-cpu: prepare mapping of AP807 CPU clock dt-bindings: ap806: Document AP807 clock compatible dt-bindings: ap80x: Document AP807 CPU clock compatible clk: mvebu: ap806: Fix clock name for the cluster clk: mvebu: add CPU clock driver for Armada 7K/8K clk: mvebu: add helper file for Armada AP and CP clocks dt-bindings: ap806: add the cluster clock node in the syscon file * clk-ingenic: clk: ingenic: Use CLK_OF_DECLARE_DRIVER macro clk: ingenic/jz4740: Fix "pll half" divider not read/written properly * clk-meson: (23 commits) clk: meson: g12a: add support for SM1 CPU 1, 2 & 3 clocks clk: meson: g12a: add support for SM1 DynamIQ Shared Unit clock clk: meson: g12a: add support for SM1 GP1 PLL dt-bindings: clk: meson: add sm1 periph clock controller bindings clk: meson: axg-audio: add g12a reset support dt-bindings: clock: meson: add resets to the audio clock controller clk: meson: g12a: expose CPUB clock ID for G12B clk: meson: g12a: add notifiers to handle cpu clock change clk: meson: add g12a cpu dynamic divider driver clk: core: introduce clk_hw_set_parent() clk: meson: remove clk input helper clk: meson: remove ee input bypass clocks clk: meson: clk-regmap: migrate to new parent description method clk: meson: meson8b: migrate to the new parent description method clk: meson: axg: migrate to the new parent description method clk: meson: gxbb: migrate to the new parent description method clk: meson: g12a: migrate to the new parent description method clk: meson: remove ao input bypass clocks clk: meson: axg-aoclk: migrate to the new parent description method clk: meson: gxbb-aoclk: migrate to the new parent description method ... |
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Stephen Boyd
|
7f4804665b |
clk: Drop !clk checks in debugfs dumping
These recursive functions have checks for !clk being passed in, but the callers are always looping through lists and therefore the pointers can't be NULL. Drop the checks to simplify the code. Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20190826234729.145593-1-sboyd@kernel.org |
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Stephen Boyd
|
bdcf1dc253 |
clk: Evict unregistered clks from parent caches
We leave a dangling pointer in each clk_core::parents array that has an unregistered clk as a potential parent when that clk_core pointer is freed by clk{_hw}_unregister(). It is impossible for the true parent of a clk to be set with clk_set_parent() once the dangling pointer is left in the cache because we compare parent pointers in clk_fetch_parent_index() instead of checking for a matching clk name or clk_hw pointer. Before commit |
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Linus Torvalds
|
cef7298262 |
ARM: DT updates for v5.4
This is another huge branch with close to 450 changessets related to devicetree files, roughly half of this for 32-bit and 64-bit respectively. There are lots of cleanups and additional hardware support for platforms we already support based on SoCs from Renesas, ST-Microelectronics, Intel/Altera, Rockchips, Allwinner, Broadcom and other manufacturers. A total of 6 new SoCs and 37 new boards gets added this time, one more SoC will come in a follow-up branch. Most of the new boards are for 64-bit ARM SoCs, the others are typically for the 32-bit Cortex-A7. Going more into details for SoC platforms with new hardware support: The Snapdragon 855 (SM8150) is Qualcomm's current high-end phone platform, usually paired with an external 5G modem. So far we only support the Qualcomm SM8150 MTP reference platform, but no actual products. For the slightly older Qualcomm platforms, support for several interesting products is getting added: Three laptops based on Snapdragon 835/MSM8998 (Asus NovaGo, HP Envy X2 and Lenovo Miix 630), one laptop based on Snapdragon 850/sdm850 (Lenovo Yoga C630) and several phones based on the older Snapdragon 410/MSM8916 (Samsung A3 and A5, Longcheer L8150 aka Android One 2nd gen "seed" aka Wileyfox Swift). Mediatek MT7629 is a new wireless network router chip, similar to the older MT7623. It gets added together with the reference board implementation. Allwinner V3 is a repackaged version of the existing low-end V3s chip, and is used in the tiny Lichee Pi Zero plus, also added here. There is also a new TV set-top box based on Allwinner H6, the Tanix TX6, and the eMMC variant of the Olimex A64-Olinuxino development board. NXP i.MX8M Nano is a new member of the ever-expanding i.MX SoC family, similar to the i.MX8M Mini. As usual, there is a large number of new boards for i.MX SoCs: Einfochips i.MX8QXP AI_ML, SolidRun Hummingboard Pulse baseboard and System-on-Module, Boundary Devices i.MX8MQ Nitrogen8M, and TechNexion PICO-PI-IMX8M-DEV for the 64-bit i.MX8 line. For 32-bit, we get the Kontron i.MX6UL N6310 SoM with two baseboards, the PHYTEC phyBOARD-Segin SoM with three baseboards, and the Zodiac Inflight Innovations i.MX7 RMU2 board. In a different NXP product line, the Layerscape LS1046A "Freeway" reference board gets added. Amlogic SM1 (S905X3) and G12B (S922X, A311D) are updated chips from their set-top-box line and smart speaker with newer CPU and GPU cores compared to their predecessors. Both are now also supported by the Khadas VIM3 development board series, and the dts files for that get reorganized a bit to better deal with all variants. Another board based on SM1 that gets added is the SEI Robotics SEI610. There are a handful of new x86 and Power9 server boards using Aspeed BMC chips that are gaining support for running Linux on the BMC through the OpenBMC project: Facebook Minipack/Wedge100/Wedge40, Lenovo Hr855xg2, and Mihawk. Notably these are still new machines using SoCs based on the ARM9 and ARM11 CPU cores, as support for the new Cortex-A7 based AST2600 is still ramping up. There are three new end-user products using 32-bit Rockchips SoCs: Mecer Xtreme Mini S6 is an Android "mini PC" box based on the low-end RK3229 chip, while the two AOpen products Chromebox Mini (Fievel) and Chromebase Mini (Tiger) run ChromeOS and are meant for commercial settings (digital signage, PoS, ...). One more single-board computer based on the popular 64-bit RK3399 is added: the Leez RK3399 P710. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJdf6StAAoJEJpsee/mABjZDfEP/3h0GusRkoQ6PJ5FHsj4nIR6 NJK8RxmX4B4ctXxBc+Rbt8bHp1d/IdHL4Jcqe7xgR2OIVQPloJz1lFrLaF0wn4Mu G1EP2DzcLym3K0lBwhByvXfU1s2lhaTYdT594J8kTEVgcPXe79LKqH42A1T+1IlC 7+xAh9sU++NLo64w+Iam3d3T72ugyeO7THWiie7Rb9wACS94i7cZwvasur35aHxf Ut5nOQYPbTuVVvN1FfZAdrHJpK9r7pbJLVwHLMdHnUYup2XDmoC6iuDrKlsWxqjs SBL0u+dO5pkdKQp17RZFQZwrx2Y97E9KLWaT9Cqb7nwJ+ftYf419TUioQvmyJRZd DEsCz6GVCCOs2zFcGj+9iGRr5wA2O3I42dOZkkkTciztksFwSmomrSlwAgVBT2ms In6K3g2DrN31aDGFW9dZnxBXHVHWXkqr/TN4UIO2h0jfR4bazAvPzBiDpJdkz1NY KPpDrdTRA2k4UnSimot/7Pw8y2NtsTDVJeQS1KydSe44PiLLumO8hg+FfnhJoW5s oaSjX89549JvUIrA7TbXPxpyGS8oo7a1XkQyzfWZs8l7JMWoR5oK/VdiuDBL7YDE XFlcZmCmB+kUgtSgXjw9FflkoMn06usVZBo1rnWFApYmzZ3htnniNSgz/zjMJpXn OtQTQnP2LzS+ioxqB2Se =Bm5T -----END PGP SIGNATURE----- Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM DT updates from Arnd Bergmann: "This is another huge branch with close to 450 changessets related to devicetree files, roughly half of this for 32-bit and 64-bit respectively. There are lots of cleanups and additional hardware support for platforms we already support based on SoCs from Renesas, ST-Microelectronics, Intel/Altera, Rockchips, Allwinner, Broadcom and other manufacturers. A total of 6 new SoCs and 37 new boards gets added this time, one more SoC will come in a follow-up branch. Most of the new boards are for 64-bit ARM SoCs, the others are typically for the 32-bit Cortex-A7. Going more into details for SoC platforms with new hardware support: - The Snapdragon 855 (SM8150) is Qualcomm's current high-end phone platform, usually paired with an external 5G modem. So far we only support the Qualcomm SM8150 MTP reference platform, but no actual products. - For the slightly older Qualcomm platforms, support for several interesting products is getting added: Three laptops based on Snapdragon 835/MSM8998 (Asus NovaGo, HP Envy X2 and Lenovo Miix 630), one laptop based on Snapdragon 850/sdm850 (Lenovo Yoga C630) and several phones based on the older Snapdragon 410/MSM8916 (Samsung A3 and A5, Longcheer L8150 aka Android One 2nd gen "seed" aka Wileyfox Swift). - Mediatek MT7629 is a new wireless network router chip, similar to the older MT7623. It gets added together with the reference board implementation. - Allwinner V3 is a repackaged version of the existing low-end V3s chip, and is used in the tiny Lichee Pi Zero plus, also added here. There is also a new TV set-top box based on Allwinner H6, the Tanix TX6, and the eMMC variant of the Olimex A64-Olinuxino development board. - NXP i.MX8M Nano is a new member of the ever-expanding i.MX SoC family, similar to the i.MX8M Mini. As usual, there is a large number of new boards for i.MX SoCs: Einfochips i.MX8QXP AI_ML, SolidRun Hummingboard Pulse baseboard and System-on-Module, Boundary Devices i.MX8MQ Nitrogen8M, and TechNexion PICO-PI-IMX8M-DEV for the 64-bit i.MX8 line. For 32-bit, we get the Kontron i.MX6UL N6310 SoM with two baseboards, the PHYTEC phyBOARD-Segin SoM with three baseboards, and the Zodiac Inflight Innovations i.MX7 RMU2 board. - In a different NXP product line, the Layerscape LS1046A "Freeway" reference board gets added. - Amlogic SM1 (S905X3) and G12B (S922X, A311D) are updated chips from their set-top-box line and smart speaker with newer CPU and GPU cores compared to their predecessors. Both are now also supported by the Khadas VIM3 development board series, and the dts files for that get reorganized a bit to better deal with all variants. Another board based on SM1 that gets added is the SEI Robotics SEI610. - There are a handful of new x86 and Power9 server boards using Aspeed BMC chips that are gaining support for running Linux on the BMC through the OpenBMC project: Facebook Minipack/Wedge100/Wedge40, Lenovo Hr855xg2, and Mihawk. Notably these are still new machines using SoCs based on the ARM9 and ARM11 CPU cores, as support for the new Cortex-A7 based AST2600 is still ramping up. - There are three new end-user products using 32-bit Rockchips SoCs: Mecer Xtreme Mini S6 is an Android "mini PC" box based on the low-end RK3229 chip, while the two AOpen products Chromebox Mini (Fievel) and Chromebase Mini (Tiger) run ChromeOS and are meant for commercial settings(digital signage, PoS, ...). - One more single-board computer based on the popular 64-bit RK3399 is added: the Leez RK3399 P710" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (467 commits) arm64: dts: qcom: Add Lenovo Yoga C630 ARM: dts: aspeed-g5: Fixe gpio-ranges upper limit ARM; dts: aspeed: mihawk: File should not be executable ARM: dts: aspeed: swift: Change power supplies to version 2 ARM: dts: aspeed: vesnin: Add secondary SPI flash chip ARM: dts: aspeed: vesnin: Add wdt2 with alt-boot option ARM: dts: aspeed-g4: Add all flash chips ARM: dts: exynos: Enable GPU/Mali T604 on Arndale board ARM: dts: exynos: Enable GPU/Mali T604 on Chromebook Snow ARM: dts: exynos: Add GPU/Mali T604 node to Exynos5250 ARM: dts: exynos: Fix min/max buck4 for GPU on Arndale board ARM: dts: exynos: Mark LDO10 as always-on on Peach Pit/Pi Chromebooks ARM: dts: exynos: Remove not accurate secondary ADC compatible arm64: dts: rockchip: limit clock rate of MMC controllers for RK3328 arm64: dts: meson-sm1-sei610: add stdout-path property back arm64: dts: meson-sm1-sei610: enable DVFS arm64: dts: khadas-vim3: add support for the SM1 based VIM3L dt-bindings: arm: amlogic: add Amlogic SM1 based Khadas VIM3L bindings arm64: dts: khadas-vim3: move common nodes into meson-khadas-vim3.dtsi arm64: dts: meson: g12a: add reset to tdm formatters ... |
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Stephen Boyd
|
226fd70209 |
clk: Document of_parse_clkspec() some more
The return value of of_parse_clkspec() is peculiar. If the function is
called with a NULL argument for 'name' it will return -ENOENT, but if
it's called with a non-NULL argument for 'name' it will return -EINVAL.
This peculiarity is documented by commit
|
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Rishi Gupta
|
ef13e55c27 |
clk: Remove extraneous 'for' word in comments
An extra 'for' word is grammatically incorrect in the comment 'verifying ops for multi-parent clks'. This commit removes this extra for word. Signed-off-by: Rishi Gupta <gupt21@gmail.com> Link: https://lkml.kernel.org/r/1566023759-7880-1-git-send-email-gupt21@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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Martin Blumenstingl
|
24876f09a7 |
clk: Fix potential NULL dereference in clk_fetch_parent_index()
Don't compare the parent clock name with a NULL name in the
clk_parent_map. This prevents a kernel crash when passing NULL
core->parents[i].name to strcmp().
An example which triggered this is a mux clock with four parents when
each of them is referenced in the clock driver using
clk_parent_data.fw_name and then calling clk_set_parent(clk, 3rd_parent)
on this mux.
In this case the first parent is also the HW default so
core->parents[i].hw is populated when the clock is registered. Calling
clk_set_parent(clk, 3rd_parent) will then go through all parents and
skip the first parent because it's hw pointer doesn't match. For the
second parent no hw pointer is cached yet and clk_core_get(core, 1)
returns a non-matching pointer (which is correct because we are comparing
the second with the third parent). Comparing the result of
clk_core_get(core, 2) with the requested parent gives a match. However
we don't reach this point because right after the clk_core_get(core, 1)
mismatch the old code tried to !strcmp(parent->name, NULL) (where the
second argument is actually core->parents[i].name, but that was never
populated by the clock driver).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lkml.kernel.org/r/20190815223155.21384-1-martin.blumenstingl@googlemail.com
Fixes:
|
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Stephen Boyd
|
4f8c6aba37 |
clk: Fix falling back to legacy parent string matching
Calls to clk_core_get() will return ERR_PTR(-EINVAL) if we've started
migrating a clk driver to use the DT based style of specifying parents
but we haven't made any DT updates yet. This happens when we pass a
non-NULL value as the 'name' argument of of_parse_clkspec(). That
function returns -EINVAL in such a situation, instead of -ENOENT like we
expected. The return value comes back up to clk_core_fill_parent_index()
which proceeds to skip calling clk_core_lookup() because the error
pointer isn't equal to -ENOENT, it's -EINVAL.
Furthermore, we blindly overwrite the error pointer returned by
clk_core_get() with NULL when there isn't a legacy .name member
specified in the parent map. This isn't too bad right now because we
don't really care to differentiate NULL from an error, but in the future
we should only try to do a legacy lookup if we know we might find
something. This way DT lookups that fail don't try to lookup based on
strings when there isn't any string to match, hiding the error from DT
parsing.
Fix both these problems so that clk provider drivers can use the new
style of parent mapping without having to also update their DT at the
same time. This patch is based on an earlier patch from Taniya Das which
checked for -EINVAL in addition to -ENOENT return values from
clk_core_get().
Fixes:
|
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Stephen Boyd
|
0214f33c4e |
clk: Overwrite clk_hw::init with NULL during clk_register()
We don't want clk provider drivers to use the init structure after clk registration time, but we leave a dangling reference to it by means of clk_hw::init. Let's overwrite the member with NULL during clk_register() so that this can't be used anymore after registration time. Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Doug Anderson <dianders@chromium.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20190731193517.237136-10-sboyd@kernel.org Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> |
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Neil Armstrong
|
3567894b69 |
clk: core: introduce clk_hw_set_parent()
Introduce the clk_hw_set_parent() provider call to change parent of a clock by using the clk_hw pointers. This eases the clock reparenting from clock rate notifiers and implementing DVFS with simpler code avoiding the boilerplates functions as __clk_lookup(clk_hw_get_name()) then clk_set_parent(). Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> |
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Markus Elfring
|
1ccc0ddf04 |
clk: Use seq_puts() in possible_parent_show()
A string which did not contain a data format specification should be put into a sequence. Thus use the corresponding function “seq_puts”. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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Leonard Crestez
|
9f77672260 |
clk: Assert prepare_lock in clk_core_get_boundaries
This function iterates the clk consumer list on clk_core so it must be called under prepare_lock. This is already done by all callers but add a lockdep assert to check anyway. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Link: https://lkml.kernel.org/r/29453ee8e820457d87a8faf9d496390e59c6826f.1562073871.git.leonard.crestez@nxp.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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Leonard Crestez
|
1bd37a4677 |
clk: Add clk_min/max_rate entries in debugfs
Add two files to expose min/max clk rates as determined by clk_core_get_boundaries, taking all consumer requests into account. This information does not appear to be otherwise exposed to userspace. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Link: https://lkml.kernel.org/r/68e96af2df96512300604d797ade2088d7e6e496.1562073871.git.leonard.crestez@nxp.com [sboyd@kernel.org: Drop if statements for JSON printing] Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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Linus Torvalds
|
916f562fb2 |
This round of clk driver and framework updates is heavy on the driver update
side. The two main highlights in the core framework are the addition of an bulk clk_get API that handles optional clks and an extra debugfs file that tells the developer about the current parent of a clk. The driver updates are dominated by i.MX in the diffstat, but that is mostly because that SoC has started converting to the clk_hw style of clk registration. The next big update is in the Amlogic meson clk driver that gained some support for audio, cpu, and temperature clks while fixing some PLL issues. Finally, the biggest thing that stands out is the conversion of a large part of the Allwinner sunxi-ng driver to the new clk parent scheme that uses less strings and more pointer comparisons to match clk parents and children up. In general, it looks like we have a lot of little fixes and tweaks here and there to clk data along with the normal addition of a handful of new drivers and a couple new core framework features. Core: - Add a 'clk_parent' file in clk debugfs - Add a clk_bulk_get_optional() API (with devm too) New Drivers: - Support gated clk controller on MIPS based BCM63XX SoCs - Support SiLabs Si5341 and Si5340 chips - Support for CPU clks on Raspberry Pi devices - Audsys clock driver for MediaTek MT8516 SoCs Updates: - Convert a large portion of the Allwinner sunxi-ng driver to new clk parent scheme - Small frequency support for SiLabs Si544 chips - Slow clk support for AT91 SAM9X60 SoCs - Remove dead code in various clk drivers (-Wunused) - Support for Marvell 98DX1135 SoCs - Get duty cycle of generic pwm clks - Improvement in mmc phase calculation and cleanup of some rate defintions - Switch i.MX6 and i.MX7 clock drivers to clk_hw based APIs - Add GPIO, SNVS and GIC clocks for i.MX8 drivers - Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock - Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting - Add clks for new Exynos5422 Dynamic Memory Controller driver - Clock definition for Exynos4412 Mali - Add CMM (Color Management Module) clocks on Renesas R-Car H3, M3-N, E3, and D3 - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas RZ/G2M - Support for 32 bit clock IDs in TI's sci-clks for J721e SoCs - TI clock probing done from DT by default instead of firmware - Fix Amlogic Meson mpll fractional part and spread sprectrum issues - Add Amlogic meson8 audio clocks - Add Amlogic g12a temperature sensors clocks - Add Amlogic g12a and g12b cpu clocks - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas R-Car H3, M3-W, and M3-N - Add CMM (Color Management Module) clocks on Renesas R-Car M3-W - Add Clock Domain support on Renesas RZ/N1 -----BEGIN PGP SIGNATURE----- iQJFBAABCAAvFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAl0uBEERHHNib3lkQGtl cm5lbC5vcmcACgkQrQKIl8bklSWucw/9ELKlfvdxrc8mdIuzt+CpKdNiSG88shXY hF+vnuE6Jhv5hmlbA/DbplPTAnHT/FQF65/GPQMAYy2wYO6CjleNxQyepiVv4h8/ tWoXu5vYZXubtQyMnYTffREzjYFPBNAscLUhXNwJKRno7nT0qKCk62WgOMfaW/KN lP5dKmrL7rdJDUvxHEStrwP515Lg5Wkhj3+XzgbgFUKGuGlvHfwUOEZucT++kqhu Z1vMjPv2ksHQf3r15BsbX/6jMIONEt2Xd6jA3Lm7ebDXJl2hjX4Gq0Kkl5pmkj2w F0V7Tw4XYk6DkSl7HQaOBgQ8KV0Mw2L8Vj6eEDhUwx6wPGlQ5YTKkUCJkjs0mUyb UpO3TuPFN2W0hsTNDzwYpjqcfodDn159XJcduv1/ZpIanUvHgx0uVzQ7iwwYwW+l VR4SipY5AEn9hpief30X7TAUSKsE4do58imYeoGBrq78zdsJaEcDAMX7AcYdXVQ9 ahBS8ME/d1JEBNdRsSW7eTAfu8dZdI08uR8/T37GRG59XyZSjsyVmZ6kHCYrBygF AyLNMsXMCbW1rOoIpWkuGMD86XZy40laLg8T7WWTaq28t1VQ0BaBTGM4/eEexs3p FhZ1M7aH+PsDLrI2IGTBt/4xAMv+dhDS7HnxRlOONbWnLWVqmR+tYzF0aCkqJCmd O2zWCGffeYs= =mK0C -----END PGP SIGNATURE----- Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "This round of clk driver and framework updates is heavy on the driver update side. The two main highlights in the core framework are the addition of an bulk clk_get API that handles optional clks and an extra debugfs file that tells the developer about the current parent of a clk. The driver updates are dominated by i.MX in the diffstat, but that is mostly because that SoC has started converting to the clk_hw style of clk registration. The next big update is in the Amlogic meson clk driver that gained some support for audio, cpu, and temperature clks while fixing some PLL issues. Finally, the biggest thing that stands out is the conversion of a large part of the Allwinner sunxi-ng driver to the new clk parent scheme that uses less strings and more pointer comparisons to match clk parents and children up. In general, it looks like we have a lot of little fixes and tweaks here and there to clk data along with the normal addition of a handful of new drivers and a couple new core framework features. Core: - Add a 'clk_parent' file in clk debugfs - Add a clk_bulk_get_optional() API (with devm too) New Drivers: - Support gated clk controller on MIPS based BCM63XX SoCs - Support SiLabs Si5341 and Si5340 chips - Support for CPU clks on Raspberry Pi devices - Audsys clock driver for MediaTek MT8516 SoCs Updates: - Convert a large portion of the Allwinner sunxi-ng driver to new clk parent scheme - Small frequency support for SiLabs Si544 chips - Slow clk support for AT91 SAM9X60 SoCs - Remove dead code in various clk drivers (-Wunused) - Support for Marvell 98DX1135 SoCs - Get duty cycle of generic pwm clks - Improvement in mmc phase calculation and cleanup of some rate defintions - Switch i.MX6 and i.MX7 clock drivers to clk_hw based APIs - Add GPIO, SNVS and GIC clocks for i.MX8 drivers - Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock - Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting - Add clks for new Exynos5422 Dynamic Memory Controller driver - Clock definition for Exynos4412 Mali - Add CMM (Color Management Module) clocks on Renesas R-Car H3, M3-N, E3, and D3 - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas RZ/G2M - Support for 32 bit clock IDs in TI's sci-clks for J721e SoCs - TI clock probing done from DT by default instead of firmware - Fix Amlogic Meson mpll fractional part and spread sprectrum issues - Add Amlogic meson8 audio clocks - Add Amlogic g12a temperature sensors clocks - Add Amlogic g12a and g12b cpu clocks - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas R-Car H3, M3-W, and M3-N - Add CMM (Color Management Module) clocks on Renesas R-Car M3-W - Add Clock Domain support on Renesas RZ/N1" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (190 commits) clk: consoldiate the __clk_get_hw() declarations clk: sprd: Add check for return value of sprd_clk_regmap_init() clk: lochnagar: Update DT binding doc to include the primary SPDIF MCLK clk: Add Si5341/Si5340 driver dt-bindings: clock: Add silabs,si5341 clk: clk-si544: Implement small frequency change support clk: add BCM63XX gated clock controller driver devicetree: document the BCM63XX gated clock bindings clk: at91: sckc: use dedicated functions to unregister clock clk: at91: sckc: improve error path for sama5d4 sck registration clk: at91: sckc: remove unnecessary line clk: at91: sckc: improve error path for sam9x5 sck register clk: at91: sckc: add support to free slow clock osclillator clk: at91: sckc: add support to free slow rc oscillator clk: at91: sckc: add support to free slow oscillator clk: rockchip: export HDMIPHY clock on rk3228 clk: rockchip: add watchdog pclk on rk3328 clk: rockchip: add clock id for hdmi_phy special clock on rk3228 clk: rockchip: add clock id for watchdog pclk on rk3328 clk: at91: sckc: add support for SAM9X60 ... |