When changing or retrieving clock parents, the caller is in a sleepable
state (like prepare) so the GPIO operation need not be atomic. Replace
gpiod_{g|s}et_value with gpiod_{g|s}et_value_cansleep in the {g|s}et_parent
calls for the GPIO based clock mux.
This fixes a "slowpath" warning when the GPIO controller is an I2C expander
or something similar.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Without COMMON_CLK_HI655X Wifi and bluetooth are non-functional on Hikey.
As suggested by Arnd, enable the driver automatically when the parent
driver is selected. With sensible defaults in place, we can leave other
choices for EXPERT.
Cc: John Stultz <john.stultz@linaro.org>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Suggested-by: Arnd Bergmann <arnd@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add two configuration flags to be able to not compile all the time
stm32f and stm32h7 drivers when ARCH_STM32 is set.
That help to save some space on those small platforms.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Acked-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
STM32F769 has 2 SDMMC port, add clock entry for the second one.
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This patch adds DSI clock for STM32F469 board
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Update of END_PRIMARY_CLK was missed, it should be after CLK_SYSCLK
hsi and sysclk are overwritten by gpioa and gpiob.
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Tested-by: Philippe Cornu <philippe.cornu@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
...instead of open coding file operations followed by custom ->open()
callbacks per each attribute.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add a few gate clocks which are used for gating RTC for some
devices on AON area of SC9860.
This patch has been tested on SC9860, with this patch and proper DT
configurations, the watchdog can be initialized and work well.
Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Added index of RTC gate clocks which are used by some devices on aon
area of SC9860, for example the Watchdog timer.
Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
we need it even when !CONFIG_HAVE_CLK because it allows
us to catch missing checking return values in the non-clk
compile configurations too. More test coverage.
Cc: Stephen Boyd <sboyd@codeaurora.org>
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The core does not need to hold enable lock for clk_is_enabled API.
Update the doc to reflect it.
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
[sboyd: Clarified the last sentence a little more and fixed a spelling
error]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
aggre0 bus clks are not associated with any of the drivers, so its
important that these clks are always on to get peripherals on this
bus working. So mark them as critical.
Eventually when we have a proper bus driver these clks can be marked
appropriately.
Without this patch pcie on db820c is not functional.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
clk_round_rate() is intended to be used to round a given clock rate to
the closest one achievable by the actual clock. This implies that the
input to clk_round_rate() is expected to be unachievable - and such
cases shouldn't be treated as exceptional.
To reflect this, remove the WARN_ONs which trigger when an unachievable
clock rate is passed to vexpress_osc_round_rate().
Reported-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Brian Starkey <brian.starkey@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Clock framework has a provider API(clk_hw_set_rate_range) to set the
min/max rate of a clock. Use the same to set the boundaries for the
vexpress osc clock.
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Running sparse on the samsung clk directory has some noise that we can
fix to look for future problems easier.
drivers/clk/samsung/clk-s3c2443.c:111:26: warning: symbol 's3c2443_common_muxes' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:139:26: warning: symbol 's3c2443_common_dividers' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:152:27: warning: symbol 's3c2443_common_gates' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:186:28: warning: symbol 's3c2443_common_aliases' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:241:26: warning: symbol 's3c2416_dividers' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:247:26: warning: symbol 's3c2416_muxes' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:253:27: warning: symbol 's3c2416_gates' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:263:28: warning: symbol 's3c2416_aliases' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:291:26: warning: symbol 's3c2443_dividers' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:296:27: warning: symbol 's3c2443_gates' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:305:28: warning: symbol 's3c2443_aliases' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:321:26: warning: symbol 's3c2450_dividers' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:328:26: warning: symbol 's3c2450_muxes' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:334:27: warning: symbol 's3c2450_gates' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:345:28: warning: symbol 's3c2450_aliases' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:368:33: warning: symbol 's3c2443_common_frate_clks' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2443.c:464:49: warning: Using plain integer as NULL pointer
drivers/clk/samsung/clk-s3c2443.c:470:49: warning: Using plain integer as NULL pointer
drivers/clk/samsung/clk-s3c2443.c:476:49: warning: Using plain integer as NULL pointer
drivers/clk/samsung/clk-s3c2412.c:96:26: warning: symbol 's3c2412_dividers' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2412.c:108:35: warning: symbol 's3c2412_ffactor' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2412.c:128:26: warning: symbol 's3c2412_muxes' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2412.c:146:27: warning: symbol 's3c2412_gates' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2412.c:177:28: warning: symbol 's3c2412_aliases' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2412.c:227:33: warning: symbol 's3c2412_common_frate_clks' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2412.c:292:43: warning: Using plain integer as NULL pointer
drivers/clk/samsung/clk-s3c2410.c:98:26: warning: symbol 's3c2410_common_muxes' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:114:26: warning: symbol 's3c2410_common_dividers' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:119:27: warning: symbol 's3c2410_common_gates' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:138:28: warning: symbol 's3c2410_common_aliases' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:203:26: warning: symbol 's3c2410_dividers' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:207:35: warning: symbol 's3c2410_ffactor' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:218:28: warning: symbol 's3c2410_aliases' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:272:26: warning: symbol 's3c244x_common_muxes' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:277:35: warning: symbol 's3c244x_common_ffactor' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:294:26: warning: symbol 's3c244x_common_dividers' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:302:27: warning: symbol 's3c244x_common_gates' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:306:28: warning: symbol 's3c244x_common_aliases' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:321:26: warning: symbol 's3c2440_muxes' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:325:27: warning: symbol 's3c2440_gates' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:331:35: warning: symbol 's3c2442_ffactor' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:337:26: warning: symbol 's3c2442_muxes' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:346:33: warning: symbol 's3c2410_common_frate_clks' was not declared. Should it be static?
drivers/clk/samsung/clk-s3c2410.c:471:49: warning: Using plain integer as NULL pointer
drivers/clk/samsung/clk-s3c2410.c:477:49: warning: Using plain integer as NULL pointer
drivers/clk/samsung/clk-s3c2410.c:483:49: warning: Using plain integer as NULL pointer
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This change set includes the PLL rate definition fixes and an addition
of compile time PLL rate validation macros. It adds definitions of some
missing clocks and extends the PLL rate tables required in the sound
subsystem.
In order to handle dependencies of clocks on the power domains a clock
provider sub-driver is added for Exynos5 SoCs. In newer Exynos SoCs
there is no need to do such things as the clocks/power domain relations
are more clearly defined and better documented.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=mUDp
-----END PGP SIGNATURE-----
Merge tag 'clk-v4.17-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-samsung
Pull samsung clk driver updates from Sylwester Nawrocki:
This change set includes the PLL rate definition fixes and an addition
of compile time PLL rate validation macros. It adds definitions of some
missing clocks and extends the PLL rate tables required in the sound
subsystem.
In order to handle dependencies of clocks on the power domains a clock
provider sub-driver is added for Exynos5 SoCs. In newer Exynos SoCs
there is no need to do such things as the clocks/power domain relations
are more clearly defined and better documented.
* tag 'clk-v4.17-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk: (21 commits)
clk: samsung: Add fout=196608001 Hz EPLL rate entry for exynos4412
clk: samsung: exynos5250: Add missing clocks for FIMC LITE SYSMMU devices
clk: samsung: exynos5420: Add more entries to EPLL rate table
clk: samsung: exynos5420: Add CLK_SET_RATE_PARENT flag to mout_mau_epll_clk
clk: samsung: exynos5250: Move PD-dependent clocks to Exynos5 sub-CMU
clk: samsung: exynos5420: Move PD-dependent clocks to Exynos5 sub-CMU
clk: samsung: Add Exynos5 sub-CMU clock driver
soc: samsung: pm_domains: Add blacklisting clock handling
clk: samsung: Add compile time PLL rate validators
clk: samsung: s3c2410: Fix PLL rates
clk: samsung: exynos7: Fix PLL rates
clk: samsung: exynos5433: Fix PLL rates
clk: samsung: exynos5260: Fix PLL rates
clk: samsung: exynos5250: Fix PLL rates
clk: samsung: exynos3250: Fix PLL rates
clk: exynos5433: Extend list of available AUD_PLL output frequencies
clk: exynos5433: Add CLK_IGNORE_UNUSED flag to sclk_ioclk_i2s1_bclk
clk: samsung: Add a git tree entry to MAINTAINERS
clk: samsung: Remove redundant dev_err call in exynos_audss_clk_probe()
clk: samsung: Remove redundant dev_err call in exynos5433_cmu_probe()
...
This contains preliminary work for the MBIST workaround implemented in
the Tegra PMC driver. There's also some fixes to various clocks for bugs
that went unnoticed for a long time.
-----BEGIN PGP SIGNATURE-----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=LEk2
-----END PGP SIGNATURE-----
Merge tag 'tegra-for-4.17-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into clk-tegra
Pull tegra clk driver updates from Thierry Reding:
This contains preliminary work for the MBIST workaround implemented in
the Tegra PMC driver. There's also some fixes to various clocks for bugs
that went unnoticed for a long time.
* tag 'tegra-for-4.17-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
clk: tegra: Fix pll_u rate configuration
clk: tegra: Specify VDE clock rate
clk: tegra20: Correct PLL_C_OUT1 setup
clk: tegra: Mark HCLK, SCLK and EMC as critical
clk: tegra: MBIST work around for Tegra210
clk: tegra: add fence_delay for clock registers
clk: tegra: Add la clock for Tegra210
Fixes the following warnings:
drivers/clk/meson/meson8b.c:512:19: warning: symbol 'meson8b_mpeg_clk_div' was not declared. Should it be static?
drivers/clk/meson/meson8b.c:526:19: warning: symbol 'meson8b_clk81' was not declared. Should it be static?
drivers/clk/meson/meson8b.c:540:19: warning: symbol 'meson8b_cpu_in_sel' was not declared. Should it be static?
drivers/clk/meson/meson8b.c:591:19: warning: symbol 'meson8b_cpu_scale_div' was not declared. Should it be static?
drivers/clk/meson/meson8b.c:608:19: warning: symbol 'meson8b_cpu_scale_out_sel' was not declared. Should it be static?
drivers/clk/meson/meson8b.c:626:19: warning: symbol 'meson8b_cpu_clk' was not declared. Should it be static?
drivers/clk/meson/gxbb.c:392:27: warning: symbol 'gxbb_gp0_init_regs' was not declared. Should it be static?
drivers/clk/meson/gxbb.c:439:27: warning: symbol 'gxl_gp0_init_regs' was not declared. Should it be static?
drivers/clk/meson/axg.c:195:27: warning: symbol 'axg_gp0_init_regs' was not declared. Should it be static?
drivers/clk/meson/axg.c:248:27: warning: symbol 'axg_hifi_init_regs' was not declared. Should it be static?
drivers/clk/meson/meson8b.c: In function 'meson8b_clkc_probe':
drivers/clk/meson/meson8b.c:1052:14: warning: unused variable 'clk' [-Wunused-variable]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
- use regmap in clock controllers for GXBB, GXL and AXG
- general clock updates for Meson8, GXBB, GXL and AXG
Based on the clk-helpers topic branch as a dependency.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=TpHi
-----END PGP SIGNATURE-----
Merge tag 'clk-for-v4.17-1' of https://github.com/BayLibre/clk-meson into clk-amlogic
Pull amlogic clk driver updates from Neil Armstrong:
- pll fixes for GXBB, GXL and AXG
- use regmap in clock controllers for GXBB, GXL and AXG
- general clock updates for Meson8, GXBB, GXL and AXG
(Based on the clk-helpers topic branch as a dependency)
* tag 'clk-for-v4.17-1' of https://github.com/BayLibre/clk-meson: (49 commits)
clk: meson: clean-up clk81 clocks
clk: meson: add fdiv clock gates
clk: meson: add mpll pre-divider
clk: meson: axg: add hifi pll clock
clk: meson: axg: add hifi clock bindings
clk: meson: add ROUND_CLOSEST to the pll driver
clk: meson: add gp0 frac parameter for axg and gxl
clk: meson: improve pll driver results with frac
clk: meson: remove special gp0 lock loop
clk: meson: poke pll CNTL last
clk: meson: add fractional part of meson8b fixed_pll
clk: meson: use hhi syscon if available
clk: meson: remove obsolete cpu_clk
clk: meson: rework meson8b cpu clock
clk: meson: split divider and gate part of mpll
clk: meson: migrate plls clocks to clk_regmap
clk: meson: migrate the audio divider clock to clk_regmap
clk: meson: migrate mplls clocks to clk_regmap
clk: meson: add regmap helpers for parm
clk: meson: migrate muxes to clk_regmap
...
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=fC5B
-----END PGP SIGNATURE-----
Merge tag 'ti-clk-for-4.17' of https://github.com/t-kristo/linux-pm into clk-ti
Pull TI SoC clock updates for 4.17 from Tero Kristo:
* tag 'ti-clk-for-4.17' of https://github.com/t-kristo/linux-pm:
clk: keystone: sci-clk: add support for dynamically probing clocks
clk: ti: add support for clock latching to mux clocks
clk: ti: add support for clock latching to divider clocks
clk: ti: add generic support for clock latching
clk: ti: add support for register read-modify-write low-level operation
dt-bindings: clock: ti: add latching support to mux and divider clocks
FIMC LITE SYSMMU devices are defined in exynos5250.dtsi, but clocks for
them are not instantiated by Exynos5250 clock provider driver. Add needed
definitions for those clocks to fix IOMMU probe failure:
ERROR: could not get clock /soc/sysmmu@13c40000:sysmmu(0)
exynos-sysmmu 13c40000.sysmmu: Failed to get device clock(s)!
exynos-sysmmu: probe of 13c40000.sysmmu failed with error -38
ERROR: could not get clock /soc/sysmmu@13c50000:sysmmu(0)
exynos-sysmmu 13c50000.sysmmu: Failed to get device clock(s)!
exynos-sysmmu: probe of 13c50000.sysmmu failed with error -38
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: bfed1074f2 ("clk: exynos5250: Add missing sysmmu clocks for DISP and ISP blocks")
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
clk81 is a composite clock which parents all the peripheral clocks of the
platform. It is a critical clock which is used as provided by the
bootloader. We don't want to change its rate or reparent it, ever.
Remove the CLK_IGNORE_UNUSED on the mux and divider. These clock can't
gate so the flag is useless, and the gate is already critical, so the
clock won't ever be unused.
Remove CLK_SET_RATE_NO_REPARENT from mux, it is useless since the mux is
read-only.
Remove CLK_SET_RATE_PARENT from the gate and divider and use ro_ops for
the divider. A peripheral clock should not try to change the rate of
clk81. Stopping the rate propagation is good way to make sure such request
would be ignored.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Fdiv fixed dividers clocks of the fixed_pll can actually gate
independently. We never had an issue so far because these clocks
were provided 'enabled' by the bootloader.
Add these gates to enable/disable the clocks when required.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
mpll clocks parent can actually be divided by 1 or 2. So far, this
divider has always been set to 1, so the calculation was correct.
Now that we know it exists, model the tree correctly. If we ever get
a platform where the divider is different, we won't get into trouble
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Add the hifi pll to the axg clock controller. This clock maybe used as an
input of the axg audio clock controller. It uses the same settings table
as the gp0 pll but has a frac parameter allowing more precision.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Provide an option for the pll driver to round to the rate closest to the
requested rate, instead of systematically rounding down.
This may allow the provided rate to be closer to the requested rate when
rounding up is not an issue
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Add the frac parameter for the gp0 pll of the axg and gxl.
This allows to achieve rates between the fixed settings provided
by the table.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Finding the appropriate settings of meson plls is too tricky to be done
entirely at runtime, using calculation only. Many combination of m, n
and od won't lock which is why we are using a table for this. However,
for plls having a fractional parameters, it is possible to improve on
the result provided by the table by calculating the frac parameter.
This change adds the calculation of frac when the parameter is available
and the rate provided by the table is not an exact match for the
requested rate.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
After testing, it appears that the gxl (and axg) does not require the
special locking/reset loop which was initially added for it.
All the values present in the gxl table can locked with the simple lock
checking loop.
The change switches the gxl and axg gp0 back to the simple lock checking
loop and removes the code no longer required.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Poking CNTL first may take the PLL out of reset while we are still
applying the initial settings, including the filter values
initialization. This is the case for the axg and gxl gp0 pll.
Doing this poke last ensures the pll stays in reset while the initial
settings are applied.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Add the missing frac parameter to the meson8b fixed_pll. It seems to be
always on this platform, so the rate remains unchanged
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
On gxbb and axg, try to get the hhi regmap from the parent DT node, which
should be the HHI system controller once the necessary changes have been
made in amlogic's DTs
Until then, if getting regmap through the system controller fails, the
clock controller will fall back to the old way, requesting memory region
directly and then registering the regmap itself.
This should allow a smooth transition to syscon
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
meson8b cpu_clk has been replaced by a set of divider and mux clocks.
meson_cpu_clk is no longer used and can be removed
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Instead of migrating meson cpu_clk to clk_regmap, like the other meson
clock drivers, we take advantage of the massive rework to get rid of it
completely, and solve (the first part) of the related FIXME notice.
As pointed out in the code comments, the cpu_clk should be modeled with
dividers and muxes it is made of, instead of one big composite clock.
The cpu_clk was not working correctly to enable dvfs on meson8b. It hangs
quite often when changing the cpu clock rate. This new implementation,
based on simple elements improves the situation but the platform will
still hang from time to time. This is not acceptable so, until we can
make the mechanism around the cpu clock stable, the cpu clock subtree
has been put in read-only mode, preventing any change of the cpu clock
The notifier and read-write operation will be added back when we have a
solution to the problem.
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
The mpll clock is a kind of fractional divider which can gate.
When the RW operation have been added, enable/disable ops have been
mistakenly inserted in this driver. These ops are essentially a
poor copy/paste of the generic gate ops.
This change removes the gate ops from the mpll driver and inserts a
generic gate clock on each mpll divider, simplifying the mpll
driver and reducing code duplication.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Rework meson pll driver to use clk_regmap and move meson8b, gxbb and
axg's clock using meson_clk_pll to clk_regmap.
This rework is not just about clk_regmap, there a serious clean-up of
the driver code:
* Add lock and reset field: Previously inferred from the n field.
* Simplify the reset logic: Code seemed to apply reset differently but
in fact it was always the same -> assert reset, apply params,
de-assert reset. The 2 lock checking loops have been kept for now, as
they seem to be necessary.
* Do the sequence of init register pokes only at .init() instead of in
.set_rate(). Redoing the init on every set_rate() is not necessary
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Rework meson audio divider driver to use clk_regmap and move gxbb
clock using meson_clk_audio_divider to clk_regmap.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Rework meson mpll driver to use clk_regmap and move meson8b, gxbb
and axg clocks using meson_clk_mpll to clk_regmap
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Meson clock drivers are using struct parm to describe each field of the
clock provider. Providing helpers to access these fields with regmap
helps to keep drivers readable
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Move meson8b, gxbb and axg clocks using clk_mux to clk_regmap
Also remove a few useless tables in the process
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Move meson8b, gxbb and axg clocks using clk_divider to clk_regmap
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Move meson8b, gxbb and axg clocks using clk_gate to clk_regmap
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
This change registers a regmap in meson8b, gxbb and axg controllers.
The clock are still accessing their registers directly through iomem.
Once all clocks handled by these controllers have been move to regmap,
the regmap register will be removed and replaced with a syscon request.
This is needed because other drivers, such as the HDMI driver, need to
access the HHI register region
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
aoclk_gate_regmap has been replaced by meson's clk_regmap.
It is no longer necessary so, remove it
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
