[PATCH v6 2/4] dt-bindings: mediatek: Add MT8173 cpufreq driver bindings
From: Pi-Cheng Chen <hidden>
Date: 2015-07-09 10:28:54
Also in:
linux-arm-kernel, linux-mediatek, linux-pm, lkml
Subsystem:
cpu frequency scaling framework, open firmware and flattened device tree bindings, the rest · Maintainers:
"Rafael J. Wysocki", Viresh Kumar, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
This patch adds device tree binding document for MT8173 cpufreq driver. The clock and regulator consumer properties are documented in Documentation/devicetree/bindings/clock/mt8173-cpu-dvfs.txt and referenced by this document. Signed-off-by: Pi-Cheng Chen <redacted> --- .../devicetree/bindings/cpufreq/cpufreq-mt8173.txt | 134 +++++++++++++++++++++ 1 file changed, 134 insertions(+) create mode 100644 Documentation/devicetree/bindings/cpufreq/cpufreq-mt8173.txt
diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-mt8173.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-mt8173.txt
new file mode 100644
index 0000000..f23873f
--- /dev/null
+++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-mt8173.txt@@ -0,0 +1,134 @@ + +Mediatek MT8173 cpufreq driver +------------------------------ + +Mediatek MT8173 cpufreq driver for CPU frequency scaling. + +Please refer to Documentation/devicetree/bindings/clock/mt8173-cpu-dvfs.txt for details +about the regulator and clock consumer properties. + +Required properties: +- operating-points: Please refer to Documentation/devicetree/bindings/power/opp.txt for + details. + +Optional properties: +- #cooling-cells: +- cooling-min-level: +- cooling-max-level: + Please refer to Documentation/devicetree/bindings/thermal/thermal.txt. + +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"; + operating-points = < + 507000 859000 + 702000 908000 + 1001000 983000 + 1105000 1009000 + 1183000 1028000 + 1404000 1083000 + 1508000 1109000 + 1573000 1125000 + >; + #cooling-cells = <2>; + cooling-min-level = <0>; + cooling-max-level = <7>; + }; + + 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"; + operating-points = < + 507000 859000 + 702000 908000 + 1001000 983000 + 1105000 1009000 + 1183000 1028000 + 1404000 1083000 + 1508000 1109000 + 1573000 1125000 + >; + #cooling-cells = <2>; + cooling-min-level = <0>; + cooling-max-level = <7>; + }; + + 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"; + operating-points = < + 507000 828000 + 702000 867000 + 1001000 927000 + 1209000 968000 + 1404000 1007000 + 1612000 1049000 + 1807000 1089000 + 1989000 1125000 + >; + #cooling-cells = <2>; + cooling-min-level = <0>; + cooling-max-level = <7>; + }; + + 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"; + operating-points = < + 507000 828000 + 702000 867000 + 1001000 927000 + 1209000 968000 + 1404000 1007000 + 1612000 1049000 + 1807000 1089000 + 1989000 1125000 + >; + #cooling-cells = <2>; + cooling-min-level = <0>; + cooling-max-level = <7>; + }; + + &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
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