modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.txt
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@@ -4,6 +4,7 @@
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 - compatible: Should contain one of the following:
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   - "nvidia,tegra186-pmc": for Tegra186
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   - "nvidia,tegra194-pmc": for Tegra194
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+  - "nvidia,tegra234-pmc": for Tegra234
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 - reg: Must contain an (offset, length) pair of the register set for each
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   entry in reg-names.
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 - reg-names: Must include the following entries:
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@@ -11,10 +12,13 @@
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   - "wake"
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   - "aotag"
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   - "scratch"
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-  - "misc" (Only for Tegra194)
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+  - "misc" (Only for Tegra194 and later)
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 Optional properties:
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 - nvidia,invert-interrupt: If present, inverts the PMU interrupt signal.
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+- interrupt-controller: Identifies the node as an interrupt controller.
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+- #interrupt-cells: Specifies the number of cells needed to encode an
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+  interrupt source. The value must be 2.
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 Example:
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@@ -34,3 +38,96 @@
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 	pmc@c360000 {
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 		nvidia,invert-interrupt;
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 	};
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+
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+== Pad Control ==
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+
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+On Tegra SoCs a pad is a set of pins which are configured as a group.
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+The pin grouping is a fixed attribute of the hardware. The PMC can be
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+used to set pad power state and signaling voltage. A pad can be either
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+in active or power down mode. The support for power state and signaling
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+voltage configuration varies depending on the pad in question. 3.3 V and
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+1.8 V signaling voltages are supported on pins where software
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+controllable signaling voltage switching is available.
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+
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+Pad configurations are described with pin configuration nodes which
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+are placed under the pmc node and they are referred to by the pinctrl
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+client properties. For more information see
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+Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt.
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+
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+The following pads are present on Tegra186:
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+csia		csib		dsi		mipi-bias
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+pex-clk-bias	pex-clk3	pex-clk2	pex-clk1
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+usb0		usb1		usb2		usb-bias
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+uart		audio		hsic		dbg
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+hdmi-dp0	hdmi-dp1	pex-cntrl	sdmmc2-hv
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+sdmmc4		cam		dsib		dsic
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+dsid		csic		csid		csie
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+dsif		spi		ufs		dmic-hv
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+edp		sdmmc1-hv	sdmmc3-hv	conn
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+audio-hv	ao-hv
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+
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+Required pin configuration properties:
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+  - pins: A list of strings, each of which contains the name of a pad
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+	  to be configured.
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+
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+Optional pin configuration properties:
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+  - low-power-enable: Configure the pad into power down mode
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+  - low-power-disable: Configure the pad into active mode
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+  - power-source: Must contain either TEGRA_IO_PAD_VOLTAGE_1V8 or
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+    TEGRA_IO_PAD_VOLTAGE_3V3 to select between signaling voltages.
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+    The values are defined in
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+    include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h.
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+
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+Note: The power state can be configured on all of the above pads except
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+      for ao-hv. Following pads have software configurable signaling
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+      voltages: sdmmc2-hv, dmic-hv, sdmmc1-hv, sdmmc3-hv, audio-hv,
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+      ao-hv.
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+
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+Pad configuration state example:
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+	pmc: pmc@7000e400 {
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+		compatible = "nvidia,tegra186-pmc";
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+		reg = <0 0x0c360000 0 0x10000>,
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+		      <0 0x0c370000 0 0x10000>,
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+		      <0 0x0c380000 0 0x10000>,
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+		      <0 0x0c390000 0 0x10000>;
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+		reg-names = "pmc", "wake", "aotag", "scratch";
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+
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+		...
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+
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+		sdmmc1_3v3: sdmmc1-3v3 {
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+			pins = "sdmmc1-hv";
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+			power-source = <TEGRA_IO_PAD_VOLTAGE_3V3>;
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+		};
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+
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+		sdmmc1_1v8: sdmmc1-1v8 {
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+			pins = "sdmmc1-hv";
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+			power-source = <TEGRA_IO_PAD_VOLTAGE_1V8>;
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+		};
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+
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+		hdmi_off: hdmi-off {
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+			pins = "hdmi";
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+			low-power-enable;
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+		}
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+
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+		hdmi_on: hdmi-on {
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+			pins = "hdmi";
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+			low-power-disable;
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+		}
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+	};
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+
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+Pinctrl client example:
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+	sdmmc1: sdhci@3400000 {
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+		...
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+		pinctrl-names = "sdmmc-3v3", "sdmmc-1v8";
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+		pinctrl-0 = <&sdmmc1_3v3>;
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+		pinctrl-1 = <&sdmmc1_1v8>;
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+	};
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+
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+	...
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+
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+	sor0: sor@15540000 {
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+		...
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+		pinctrl-0 = <&hdmi_off>;
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+		pinctrl-1 = <&hdmi_on>;
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+		pinctrl-names = "hdmi-on", "hdmi-off";
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+	};