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>

1 files changed, 21 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 319c75a2331e..505ae5e541c3 100644
--- 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 {