[PATCH v3 3/4] arm: dts: mt2701: Add display bls related nodes for MT2701

[Erin Lo <erin.lo@mediatek.com>]

From: Weiqing Kong <weiqing.kong@mediatek.com>

This patch adds board related config for backlight

Signed-off-by: Weiqing Kong <weiqing.kong@mediatek.com>
Signed-off-by: Erin Lo <erin.lo@mediatek.com>
---
 arch/arm/boot/dts/mt2701-evb.dts | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm/boot/dts/mt2701-evb.dts b/arch/arm/boot/dts/mt2701-evb.dts
index a483798..3c1cf20 100644
--- a/arch/arm/boot/dts/mt2701-evb.dts
+++ b/arch/arm/boot/dts/mt2701-evb.dts
@@ -22,13 +22,40 @@
 	memory {
 		reg = <0 0x80000000 0 0x40000000>;
 	};
+
+	backlight_lcd: backlight_lcd {
+		compatible = "pwm-backlight";
+		pwms = <&bls 0 100000>;
+		brightness-levels = <
+			  0  16  32  48  64  80  96 112
+			128 144 160 176 192 208 224 240
+			255
+		>;
+		default-brightness-level = <9>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pwm_bls_gpio>;
+	};
 };
 
 &auxadc {
 	status = "okay";
 };
 
+&bls {
+	status = "okay";
+};
+
+&mmsys {
+	status = "okay";
+};
+
 &pio {
+	pwm_bls_gpio: pwm_bls_gpio {
+		pins_cmd_dat {
+			pinmux = <MT2701_PIN_208_AUD_EXT_CK1__FUNC_DISP_PWM>;
+		};
+	};
+
 	spi_pins_a: spi0@0 {
 		pins_spi {
 			pinmux = <MT2701_PIN_53_SPI0_CSN__FUNC_SPI0_CS>,
-- 
1.9.1