Quoting Pi-Cheng Chen (2015-07-09 03:27:38) > This patch adds the clock and regulator consumer properties part of > document for CPU DVFS clocks on Mediatek MT8173 SoC. > > Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@xxxxxxxxxx> Acked-by: Michael Turquette <mturquette@xxxxxxxxxxxx> Regards, Mike > --- > .../devicetree/bindings/clock/mt8173-cpu-dvfs.txt | 83 ++++++++++++++++++++++ > 1 file changed, 83 insertions(+) > create mode 100644 Documentation/devicetree/bindings/clock/mt8173-cpu-dvfs.txt > > diff --git a/Documentation/devicetree/bindings/clock/mt8173-cpu-dvfs.txt b/Documentation/devicetree/bindings/clock/mt8173-cpu-dvfs.txt > new file mode 100644 > index 0000000..27b3521 > --- /dev/null > +++ b/Documentation/devicetree/bindings/clock/mt8173-cpu-dvfs.txt > @@ -0,0 +1,83 @@ > +Device Tree Clock bindings for CPU DVFS clock of Mediatek MT8173 SoC > + > +Required properties: > +- clocks: A list of phandle + clock-specifier pairs for the clocks listed in clock names. > +- clock-names: Should contain the following: > + "cpu" - The multiplexer for clock input of CPU cluster. > + "intermediate" - A parent of "cpu" clock which is used as "intermediate" clock > + source (usually MAINPLL) when the original CPU PLL is under > + transition and not stable yet. > + Please refer to Documentation/devicetree/bindings/clk/clock-bindings.txt for > + generic clock consumer properties. > +- proc-supply: Regulator for Vproc of CPU cluster. > + > +Optional properties: > +- sram-supply: Regulator for Vsram of CPU cluster. When present, the cpufreq driver > + needs to do "voltage tracking" to step by step scale up/down Vproc and > + Vsram to fit SoC specific needs. When absent, the voltage scaling > + flow is handled by hardware, hence no software "voltage tracking" is > + needed. > + > +Example: > +-------- > + cpu0: cpu@0 { > + device_type = "cpu"; > + compatible = "arm,cortex-a53"; > + reg = <0x000>; > + enable-method = "psci"; > + cpu-idle-states = <&CPU_SLEEP_0>; > + clocks = <&infracfg CLK_INFRA_CA53SEL>, > + <&apmixedsys CLK_APMIXED_MAINPLL>; > + clock-names = "cpu", "intermediate"; > + }; > + > + cpu1: cpu@1 { > + device_type = "cpu"; > + compatible = "arm,cortex-a53"; > + reg = <0x001>; > + enable-method = "psci"; > + cpu-idle-states = <&CPU_SLEEP_0>; > + clocks = <&infracfg CLK_INFRA_CA53SEL>, > + <&apmixedsys CLK_APMIXED_MAINPLL>; > + clock-names = "cpu", "intermediate"; > + }; > + > + cpu2: cpu@100 { > + device_type = "cpu"; > + compatible = "arm,cortex-a57"; > + reg = <0x100>; > + enable-method = "psci"; > + cpu-idle-states = <&CPU_SLEEP_0>; > + clocks = <&infracfg CLK_INFRA_CA57SEL>, > + <&apmixedsys CLK_APMIXED_MAINPLL>; > + clock-names = "cpu", "intermediate"; > + }; > + > + cpu3: cpu@101 { > + device_type = "cpu"; > + compatible = "arm,cortex-a57"; > + reg = <0x101>; > + enable-method = "psci"; > + cpu-idle-states = <&CPU_SLEEP_0>; > + clocks = <&infracfg CLK_INFRA_CA57SEL>, > + <&apmixedsys CLK_APMIXED_MAINPLL>; > + clock-names = "cpu", "intermediate"; > + }; > + > + &cpu0 { > + proc-supply = <&mt6397_vpca15_reg>; > + }; > + > + &cpu1 { > + proc-supply = <&mt6397_vpca15_reg>; > + }; > + > + &cpu2 { > + proc-supply = <&da9211_vcpu_reg>; > + sram-supply = <&mt6397_vsramca7_reg>; > + }; > + > + &cpu3 { > + proc-supply = <&da9211_vcpu_reg>; > + sram-supply = <&mt6397_vsramca7_reg>; > + }; > -- > 1.9.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-pm" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html