ARM: dts: imx: ventana: add alternate PWM4 pinmux for GW54xx

The GW54xx can provide PWM4 out either the off-board backlight connector
or the off-board digital I/O connector. By default the pinmux routes it
to the backlight connector but this pinctl alternate provides documentation
for those who may want to change it.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
index 66983dc5cbdae8868b2f20ade01b3df1be44575d..367cc49eea0d69cd63c3d3a86121f260b91f05c2 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
@@ -397,8 +397,9 @@
 };
 
 &pwm4 {
-       pinctrl-names = "default";
-       pinctrl-0 = <&pinctrl_pwm4>;
+       pinctrl-names = "default", "state_dio";
+       pinctrl-0 = <&pinctrl_pwm4_backlight>;
+       pinctrl-1 = <&pinctrl_pwm4_dio>;
        status = "okay";
 };
 
@@ -573,12 +574,20 @@
                        >;
                };
 
-               pinctrl_pwm4: pwm4grp {
+               pinctrl_pwm4_backlight: pwm4grpbacklight {
                        fsl,pins = <
+                               /* LVDS_PWM J6.5 */
                                MX6QDL_PAD_SD1_CMD__PWM4_OUT            0x1b0b1
                        >;
                };
 
+               pinctrl_pwm4_dio: pwm4grpdio {
+                       fsl,pins = <
+                               /* DIO3 J16.4 */
+                               MX6QDL_PAD_SD4_DAT2__PWM4_OUT           0x1b0b1
+                       >;
+               };
+
                pinctrl_uart1: uart1grp {
                        fsl,pins = <
                                MX6QDL_PAD_SD3_DAT7__UART1_TX_DATA      0x1b0b1