From: Hsin-Yi Wang <hsinyi@chromium.org>
To: linux-kernel@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>,
Enric Balletbo i Serra <enric.balletbo@collabora.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org
Subject: [PATCH] arm64: dts: mt8183: Add pwm and backlight node
Date: Tue, 24 Nov 2020 12:12:54 +0800 [thread overview]
Message-ID: <20201124041253.4181273-1-hsinyi@chromium.org> (raw)
Add pwm to mt8183 and backlight to mt8183-kukui.
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
---
.../arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 28 +++++++++++++++++++
arch/arm64/boot/dts/mediatek/mt8183.dtsi | 10 +++++++
2 files changed, 38 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
index 85f7c33ba4461..bf2ad1294dd30 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
@@ -19,6 +19,17 @@ chosen {
stdout-path = "serial0:115200n8";
};
+ backlight_lcd0: backlight_lcd0 {
+ compatible = "pwm-backlight";
+ pwms = <&pwm0 0 500000>;
+ power-supply = <&bl_pp5000>;
+ enable-gpios = <&pio 176 0>;
+ brightness-levels = <0 1023>;
+ num-interpolated-steps = <1023>;
+ default-brightness-level = <576>;
+ status = "okay";
+ };
+
memory@40000000 {
device_type = "memory";
reg = <0 0x40000000 0 0x80000000>;
@@ -536,6 +547,17 @@ pins_clk {
};
};
+ pwm0_pin_default: pwm0_pin_default {
+ pins1 {
+ pinmux = <PINMUX_GPIO176__FUNC_GPIO176>;
+ output-high;
+ bias-pull-up;
+ };
+ pins2 {
+ pinmux = <PINMUX_GPIO43__FUNC_DISP_PWM>;
+ };
+ };
+
scp_pins: scp {
pins_scp_uart {
pinmux = <PINMUX_GPIO110__FUNC_TP_URXD1_AO>,
@@ -670,6 +692,12 @@ pins_wifi_wakeup {
};
};
+&pwm0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_pin_default>;
+};
+
&scp {
status = "okay";
pinctrl-names = "default";
diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index 08a914d3a6435..a974bad899365 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -479,6 +479,16 @@ spi0: spi@1100a000 {
status = "disabled";
};
+ pwm0: pwm@1100e000 {
+ compatible = "mediatek,mt8183-disp-pwm";
+ reg = <0 0x1100e000 0 0x1000>;
+ interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_LOW>;
+ #pwm-cells = <2>;
+ clocks = <&topckgen CLK_TOP_MUX_DISP_PWM>,
+ <&infracfg CLK_INFRA_DISP_PWM>;
+ clock-names = "main", "mm";
+ };
+
i2c3: i2c@1100f000 {
compatible = "mediatek,mt8183-i2c";
reg = <0 0x1100f000 0 0x1000>,
--
2.29.2.454.gaff20da3a2-goog
next reply other threads:[~2020-11-24 4:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-24 4:12 Hsin-Yi Wang [this message]
2020-11-25 10:24 ` Enric Balletbo i Serra
2020-11-27 11:20 ` Matthias Brugger
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