diff options
author | Mike Turquette <mturquette@linaro.org> | 2014-07-31 09:32:18 -0700 |
---|---|---|
committer | Mike Turquette <mturquette@linaro.org> | 2014-07-31 09:32:18 -0700 |
commit | d7d3d26fa5446fc74e2c52504d827bda89b7b03e (patch) | |
tree | 209f3a0fe71af5a97ece45cee40c7e1a4f5495f3 /Documentation/devicetree | |
parent | abeab450bfe823079c8a3abf5123f41a0da62392 (diff) | |
parent | f65d518942325d4bfa74b5c9d42ea5a89e4f6943 (diff) | |
download | op-kernel-dev-d7d3d26fa5446fc74e2c52504d827bda89b7b03e.zip op-kernel-dev-d7d3d26fa5446fc74e2c52504d827bda89b7b03e.tar.gz |
Merge tag 'for_3.17/samsung-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-clk into clk-next-samsung
Samsung clock patches for 3.17
1) non-critical fixes (without need to push to stable):
d5e136a clk: samsung: Register clk provider only after registering its all clocks
305cfab clk: samsung: Make of_device_id array const
e9d5295 clk: samsung: exynos5420: Setup clocks before system suspend
f65d518 clk: samsung: trivial: Correct typo in author's name
2) Exynos CLKOUT driver:
800c979 clk: samsung: exynos4: Add missing CPU/DMC clock hierarchy
01f7ec2 clk: samsung: exynos4: Add CLKOUT clock hierarchy
1e832e5 clk: samsung: Add driver to control CLKOUT line on Exynos SoCs
d19bb39 ARM: dts: exynos: Update PMU node with CLKOUT related data
3) Clock hierarchy extensions:
17d3f1d clk: exynos4: Add PPMU IP block source clocks.
ca5b402 clk: samsung: register exynos5420 apll/kpll configuration data
4) ARM CLKDOWN functionality enablement for Exynos4 and 3250:
42773b2 clk: samsung: exynos4: Enable ARMCLK down feature
45c5b0a clk: samsung: exynos3250: Enable ARMCLK down feature
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r-- | Documentation/devicetree/bindings/arm/samsung/pmu.txt | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/samsung/pmu.txt b/Documentation/devicetree/bindings/arm/samsung/pmu.txt index 2a4ab04..f9865e7 100644 --- a/Documentation/devicetree/bindings/arm/samsung/pmu.txt +++ b/Documentation/devicetree/bindings/arm/samsung/pmu.txt @@ -12,8 +12,38 @@ Properties: - reg : offset and length of the register set. + - #clock-cells : must be <1>, since PMU requires once cell as clock specifier. + The single specifier cell is used as index to list of clocks + provided by PMU, which is currently: + 0 : SoC clock output (CLKOUT pin) + + - clock-names : list of clock names for particular CLKOUT mux inputs in + following format: + "clkoutN", where N is a decimal number corresponding to + CLKOUT mux control bits value for given input, e.g. + "clkout0", "clkout7", "clkout15". + + - clocks : list of phandles and specifiers to all input clocks listed in + clock-names property. + Example : pmu_system_controller: system-controller@10040000 { compatible = "samsung,exynos5250-pmu", "syscon"; reg = <0x10040000 0x5000>; + #clock-cells = <1>; + clock-names = "clkout0", "clkout1", "clkout2", "clkout3", + "clkout4", "clkout8", "clkout9"; + clocks = <&clock CLK_OUT_DMC>, <&clock CLK_OUT_TOP>, + <&clock CLK_OUT_LEFTBUS>, <&clock CLK_OUT_RIGHTBUS>, + <&clock CLK_OUT_CPU>, <&clock CLK_XXTI>, + <&clock CLK_XUSBXTI>; +}; + +Example of clock consumer : + +usb3503: usb3503@08 { + /* ... */ + clock-names = "refclk"; + clocks = <&pmu_system_controller 0>; + /* ... */ }; |