ARM: dts: imx6-sabreauto: add reset-gpios property for max7310_b

The reset pin to the port expander chip (MAX7310) is controlled by a gpio,
so define a reset-gpios property to control it. There are three MAX7310's
on the SabreAuto CPU card (max7310_[abc]), but all use the same pin for
their reset. Since all can't acquire the same pin, assign it to max7310_b,
that chip is needed by more functions (usb and adv7180).

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
index c8e35c4e9d6af3c47797403e7185a59a016656da..21dea5f50a37b74807dab958b916a5b163628539 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
@@ -136,6 +136,9 @@
                                reg = <0x32>;
                                gpio-controller;
                                #gpio-cells = <2>;
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&pinctrl_max7310>;
+                               reset-gpios = <&gpio1 15 GPIO_ACTIVE_LOW>;
                        };
 
                        max7310_c: gpio@34 {
@@ -441,6 +444,12 @@
                        >;
                };
 
+               pinctrl_max7310: max7310grp {
+                       fsl,pins = <
+                               MX6QDL_PAD_SD2_DAT0__GPIO1_IO15 0x1b0b0
+                       >;
+               };
+
                pinctrl_pwm3: pwm1grp {
                        fsl,pins = <
                                MX6QDL_PAD_SD4_DAT1__PWM3_OUT           0x1b0b1