arm64: dts: mediatek: mt6795: Add tertiary PWM node

The PWM at 0x11006000 is the tertiary PWM; unlike PWM0, PWM1, this is
not display specific and can be used as a generic PWM controller.

This node is left disabled as usage is board-specific.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230412112739.160376-21-angelogioacchino.delregno@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

Author: AngeloGioacchino Del Regno

arch/arm64/boot/dts/mediatek/mt6795.dtsi

@@ -524,6 +524,25 @@
 			status = "disabled";
 		};
 
+		pwm2: pwm@11006000 {
+			compatible = "mediatek,mt6795-pwm";
+			reg = <0 0x11006000 0 0x1000>;
+			#pwm-cells = <2>;
+			interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_LOW>;
+			clocks = <&topckgen CLK_TOP_PWM_SEL>,
+				 <&pericfg CLK_PERI_PWM>,
+				 <&pericfg CLK_PERI_PWM1>,
+				 <&pericfg CLK_PERI_PWM2>,
+				 <&pericfg CLK_PERI_PWM3>,
+				 <&pericfg CLK_PERI_PWM4>,
+				 <&pericfg CLK_PERI_PWM5>,
+				 <&pericfg CLK_PERI_PWM6>,
+				 <&pericfg CLK_PERI_PWM7>;
+			clock-names = "top", "main", "pwm1", "pwm2", "pwm3",
+				      "pwm4", "pwm5", "pwm6", "pwm7";
+			status = "disabled";
+		};
+
 		i2c0: i2c@11007000 {
 			compatible = "mediatek,mt6795-i2c", "mediatek,mt8173-i2c";
 			reg = <0 0x11007000 0 0x70>, <0 0x11000100 0 0x80>;