ARM: dts: mxs: add hog-gpios for imx23-evk and imx28-evk

Before gpio_request can directly ask pinctrl system to configure the
requested pin into gpio mode, we use "hog" entry (pinctrl state of
pin controller itself) to configure gpios.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts
index 70bffa929b659b43ab67de96d00663475ed89a4a..6a0912b286a0f227a11de87ca1a7a0cffd883f10 100644 (file)
--- a/arch/arm/boot/dts/imx23-evk.dts
+++ b/arch/arm/boot/dts/imx23-evk.dts
@@ -30,6 +30,23 @@
                                wp-gpios = <&gpio1 30 0>;
                                status = "okay";
                        };
+
+                       pinctrl@80018000 {
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&hog_pins_a>;
+
+                               hog_pins_a: hog-gpios@0 {
+                                       reg = <0>;
+                                       fsl,pinmux-ids = <
+                                               0x1123 /* MX23_PAD_LCD_RESET__GPIO_1_18 */
+                                               0x11d3 /* MX23_PAD_PWM3__GPIO_1_29 */
+                                               0x11e3 /* MX23_PAD_PWM4__GPIO_1_30 */
+                                       >;
+                                       fsl,drive-strength = <0>;
+                                       fsl,voltage = <1>;
+                                       fsl,pull-up = <0>;
+                               };
+                       };
                };
 
                apbx@80040000 {

diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 319c75a2331e789e15386632af68e646f4524f1b..505ae5e541c36d174955f4fa28c0cfc14686c53a 100644 (file)
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -44,6 +44,27 @@
                                wp-gpios = <&gpio0 28 0>;
                                status = "okay";
                        };
+
+                       pinctrl@80018000 {
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&hog_pins_a>;
+
+                               hog_pins_a: hog-gpios@0 {
+                                       reg = <0>;
+                                       fsl,pinmux-ids = <
+                                               0x20d3 /* MX28_PAD_SSP1_CMD__GPIO_2_13 */
+                                               0x20f3 /* MX28_PAD_SSP1_DATA3__GPIO_2_15 */
+                                               0x40d3 /* MX28_PAD_ENET0_RX_CLK__GPIO_4_13 */
+                                               0x20c3 /* MX28_PAD_SSP1_SCK__GPIO_2_12 */
+                                               0x31c3 /* MX28_PAD_PWM3__GPIO_3_28 */
+                                               0x31e3 /* MX28_PAD_LCD_RESET__GPIO_3_30 */
+                                               0x3053 /* MX28_PAD_AUART1_TX__GPIO_3_5 */
+                                       >;
+                                       fsl,drive-strength = <0>;
+                                       fsl,voltage = <1>;
+                                       fsl,pull-up = <0>;
+                               };
+                       };
                };
 
                apbx@80040000 {