arm64: dts: mediatek: mt8188: Add PWM nodes for display backlight

Add two hardware PWM nodes for display backlight usage on MT8188 SoC,
and mark them as disabled by default.
Boards can enable the necessary PWM node as needed.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Fei Shao <fshao@chromium.org>
Link: https://lore.kernel.org/r/20240911143429.850071-6-fshao@chromium.org
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt8188.dtsi b/arch/arm64/boot/dts/mediatek/mt8188.dtsi
index f431c303749319be052ca82fb4c7c3a5f93110b6..25a048893f1128d23562e7a7ad1c6708a43b2f86 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8188.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8188.dtsi
@@ -1421,6 +1421,28 @@
                        #thermal-sensor-cells = <1>;
                };
 
+               disp_pwm0: pwm@1100e000 {
+                       compatible = "mediatek,mt8188-disp-pwm", "mediatek,mt8183-disp-pwm";
+                       reg = <0 0x1100e000 0 0x1000>;
+                       clocks = <&topckgen CLK_TOP_DISP_PWM0>,
+                                <&infracfg_ao CLK_INFRA_AO_DISP_PWM>;
+                       clock-names = "main", "mm";
+                       interrupts = <GIC_SPI 203 IRQ_TYPE_LEVEL_HIGH 0>;
+                       #pwm-cells = <2>;
+                       status = "disabled";
+               };
+
+               disp_pwm1: pwm@1100f000 {
+                       compatible = "mediatek,mt8188-disp-pwm", "mediatek,mt8183-disp-pwm";
+                       reg = <0 0x1100f000 0 0x1000>;
+                       clocks = <&topckgen CLK_TOP_DISP_PWM1>,
+                                <&infracfg_ao CLK_INFRA_AO_DISP_PWM1>;
+                       clock-names = "main", "mm";
+                       interrupts = <GIC_SPI 793 IRQ_TYPE_LEVEL_HIGH 0>;
+                       #pwm-cells = <2>;
+                       status = "disabled";
+               };
+
                spi1: spi@11010000 {
                        compatible = "mediatek,mt8188-spi-ipm", "mediatek,spi-ipm";
                        #address-cells = <1>;