[PATCH v1 03/30] dt-bindings: pwm: tegra: Document OPP and voltage regulator properties
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2020-11-04 23:50:19
Also in:
dri-devel, linux-media, linux-mmc, linux-pwm, linux-samsung-soc, linux-tegra, linux-usb, lkml
Subsystem:
open firmware and flattened device tree bindings, pwm subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Uwe Kleine-König, Linus Torvalds
Document new DVFS OPP table and voltage regulator properties of the PWM controller. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- .../devicetree/bindings/pwm/nvidia,tegra20-pwm.txt | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt
index 74c41e34c3b6..d4d1c44a2c04 100644
--- a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt
+++ b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt@@ -32,6 +32,17 @@ The PWM node will have following optional properties. pinctrl-names: Pin state names. Must be "default" and "sleep". pinctrl-0: phandle for the default/active state of pin configurations. pinctrl-1: phandle for the sleep state of pin configurations. +core-supply: phandle for voltage regulator of the SoC "core" power domain. + +operating-points-v2: see ../bindings/opp/opp.txt for details. + +For each opp entry in 'operating-points-v2' table: +- opp-supported-hw: One bitfield indicating: + On Tegra20: SoC process ID mask + On Tegra30+: SoC speedo ID mask + + A bitwise AND is performed against the value and if any bit + matches, the OPP gets enabled. Example:
@@ -42,6 +53,8 @@ Example: clocks = <&tegra_car 17>; resets = <&tegra_car 17>; reset-names = "pwm"; + operating-points-v2 = <&dvfs_opp_table>; + core-supply = <&vdd_core>; };
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2.27.0