forked from Minki/linux
c0fa2373f8
fixes and enhancements to existing drivers as well as new drivers. This tag contains a bit more arch code than I usually take due to some OMAP2+ changes. Additionally it contains the restart notifier handlers which are merged as a dependency into several trees. The PXA changes are the only messy part. Due to having a stable tree I had to revert one patch and follow up with one more fix near the tip of this tag. Some dead code is introduced but it will soon become live code after 3.18-rc1 is released as the rest of the PXA family is converted over to the common clock framework. Another trend in this tag is that multiple vendors have started to push the complexity of changing their CPU frequency into the clock driver, whereas this used to be done in CPUfreq drivers. Changes to the clk core include a generic gpio-clock type and a clk_set_phase() function added to the top-level clk.h api. Due to some confusion on the fbdev mailing list the kernel boot parameters documentation was updated to further explain the clk_ignore_unused parameter, which is often required by users of the simplefb driver. Finally some fixes to the locking around the clock debugfs stuff was done to prevent deadlocks when interacting with other subsystems. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJUMu8gAAoJEDqPOy9afJhJ+GwP/3aU1PzhEPooZ3sZ5hkhmRYc RTzNZAODuOGbGnAiNQcr8XW3LJ6wKz5TSzzUC8IQkTcYM1Tsc7s5B6v+nMOkR2Jh sfrlnDEV/dsW9/3QADFuBowCaZdsaZnHn96RDhTmyDlPjh4HRR2k8ITT+TREbFrd cHDWy4QnI0u4NzhKtitvgW2770HyBpr31v5IdoRhVi5whoiBNL49BPwhwDWhwZVe w6qvc0jV8FK9Ra/Q7Vw6r3tiKkpO/upqVFDrsO831mp2qDcQvtOgNW9H2fjcobaX 3/KCbs1TZs39e71RsEGwCvmCudXkTgO1wUJ86MuCLHeb2o78Vx8EYie02/RApTOJ 0KGR+kFouggy2naeH8pXiTZk2HWMCbut6NQ1+AVbea5Em7hgHbYaQN71wVFKR4L7 QL+TugrIg81fGWSvxoTo6fsbEiKOUdhXvHFWP5etKHL+Ll+7ku05ojHLOZgEEwTf zFWSSF4XSFQtuQD1gup0pSfoLs6qVR57l8FsrxfRPK9jGttg5z1wyNkY+585ptim eyTn4mkvkx9t9Sx47VRj9WPcPr2SW1w8lTMw1WqKfHG7AEUJHHkRQThQmiU82b47 dTls4BBZ6sVZ8wj0V4zvnvbmtdYohOmBqNDEYx+a0dzPKstcAJyZgcjWBc13zds4 rIKKxhiU7jGWH4qnJLrx =w2rN -----END PGP SIGNATURE----- Merge tag 'clk-for-linus-3.18' of git://git.linaro.org/people/mike.turquette/linux Pull clock tree updates from Mike Turquette: "The clk tree changes for 3.18 are dominated by clock drivers. Mostly fixes and enhancements to existing drivers as well as new drivers. This tag contains a bit more arch code than I usually take due to some OMAP2+ changes. Additionally it contains the restart notifier handlers which are merged as a dependency into several trees. The PXA changes are the only messy part. Due to having a stable tree I had to revert one patch and follow up with one more fix near the tip of this tag. Some dead code is introduced but it will soon become live code after 3.18-rc1 is released as the rest of the PXA family is converted over to the common clock framework. Another trend in this tag is that multiple vendors have started to push the complexity of changing their CPU frequency into the clock driver, whereas this used to be done in CPUfreq drivers. Changes to the clk core include a generic gpio-clock type and a clk_set_phase() function added to the top-level clk.h api. Due to some confusion on the fbdev mailing list the kernel boot parameters documentation was updated to further explain the clk_ignore_unused parameter, which is often required by users of the simplefb driver. Finally some fixes to the locking around the clock debugfs stuff was done to prevent deadlocks when interacting with other subsystems." * tag 'clk-for-linus-3.18' of git://git.linaro.org/people/mike.turquette/linux: (99 commits) clk: pxa clocks build system fix Revert "arm: pxa: Transition pxa27x to clk framework" clk: samsung: register restart handlers for s3c2412 and s3c2443 clk: rockchip: add restart handler clk: rockchip: rk3288: i2s_frac adds flag to set parent's rate doc/kernel-parameters.txt: clarify clk_ignore_unused arm: pxa: Transition pxa27x to clk framework dts: add devicetree bindings for pxa27x clocks clk: add pxa27x clock drivers arm: pxa: add clock pll selection bits clk: dts: document pxa clock binding clk: add pxa clocks infrastructure clk: gpio-gate: Ensure gpiod_ APIs are prototyped clk: ti: dra7-atl-clock: Mark the device as pm_runtime_irq_safe clk: ti: LLVMLinux: Move __init outside of type definition clk: ti: consider the fact that of_clk_get() might return an error clk: ti: dra7-atl-clock: fix a memory leak clk: ti: change clock init to use generic of_clk_init clk: hix5hd2: add I2C clocks clk: hix5hd2: add watchdog0 clocks ...
57 lines
2.3 KiB
Plaintext
57 lines
2.3 KiB
Plaintext
* Renesas CPG Module Stop (MSTP) Clocks
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The CPG can gate SoC device clocks. The gates are organized in groups of up to
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32 gates.
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This device tree binding describes a single 32 gate clocks group per node.
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Clocks are referenced by user nodes by the MSTP node phandle and the clock
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index in the group, from 0 to 31.
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Required Properties:
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- compatible: Must be one of the following
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- "renesas,r7s72100-mstp-clocks" for R7S72100 (RZ) MSTP gate clocks
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- "renesas,r8a7740-mstp-clocks" for R8A7740 (R-Mobile A1) MSTP gate clocks
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- "renesas,r8a7779-mstp-clocks" for R8A7779 (R-Car H1) MSTP gate clocks
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- "renesas,r8a7790-mstp-clocks" for R8A7790 (R-Car H2) MSTP gate clocks
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- "renesas,r8a7791-mstp-clocks" for R8A7791 (R-Car M2) MSTP gate clocks
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- "renesas,r8a7794-mstp-clocks" for R8A7794 (R-Car E2) MSTP gate clocks
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- "renesas,sh73a0-mstp-clocks" for SH73A0 (SH-MobileAG5) MSTP gate clocks
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- "renesas,cpg-mstp-clock" for generic MSTP gate clocks
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- reg: Base address and length of the I/O mapped registers used by the MSTP
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clocks. The first register is the clock control register and is mandatory.
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The second register is the clock status register and is optional when not
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implemented in hardware.
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- clocks: Reference to the parent clocks, one per output clock. The parents
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must appear in the same order as the output clocks.
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- #clock-cells: Must be 1
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- clock-output-names: The name of the clocks as free-form strings
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- renesas,clock-indices: Indices of the gate clocks into the group (0 to 31)
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The clocks, clock-output-names and renesas,clock-indices properties contain one
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entry per gate clock. The MSTP groups are sparsely populated. Unimplemented
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gate clocks must not be declared.
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Example
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-------
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#include <dt-bindings/clock/r8a7790-clock.h>
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mstp3_clks: mstp3_clks@e615013c {
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compatible = "renesas,r8a7790-mstp-clocks", "renesas,cpg-mstp-clocks";
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reg = <0 0xe615013c 0 4>, <0 0xe6150048 0 4>;
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clocks = <&cp_clk>, <&mmc1_clk>, <&sd3_clk>, <&sd2_clk>,
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<&cpg_clocks R8A7790_CLK_SD1>, <&cpg_clocks R8A7790_CLK_SD0>,
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<&mmc0_clk>;
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#clock-cells = <1>;
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clock-output-names =
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"tpu0", "mmcif1", "sdhi3", "sdhi2",
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"sdhi1", "sdhi0", "mmcif0";
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clock-indices = <
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R8A7790_CLK_TPU0 R8A7790_CLK_MMCIF1 R8A7790_CLK_SDHI3
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R8A7790_CLK_SDHI2 R8A7790_CLK_SDHI1 R8A7790_CLK_SDHI0
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R8A7790_CLK_MMCIF0
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>;
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};
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