ARM: dts: igep0020: Add SD card write-protect pin.

A host device that supports write protection should refuse to write to
an SD card that is designated read-only when write-protect is set. This
is an optional feature of the SD specification.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/omap3-igep0020-common.dtsi b/arch/arm/boot/dts/omap3-igep0020-common.dtsi
index d6f839cab6499acc72cd5b93733aa967defe9d09..b6971060648a5f148d3bf7fce8b1aaf08ed3f264 100644 (file)
--- a/arch/arm/boot/dts/omap3-igep0020-common.dtsi
+++ b/arch/arm/boot/dts/omap3-igep0020-common.dtsi
@@ -194,6 +194,12 @@
                        OMAP3630_CORE2_IOPAD(0x25f8, PIN_OUTPUT | MUX_MODE4) /* etk_d14.gpio_28 */
                >;
        };
+
+       mmc1_wp_pins: pinmux_mmc1_cd_pins {
+               pinctrl-single,pins = <
+                       OMAP3630_CORE2_IOPAD(0x25fa, PIN_INPUT | MUX_MODE4)   /* etk_d15.gpio_29 */
+               >;
+       };
 };
 
 &i2c3 {
@@ -250,3 +256,8 @@
                };
        };
 };
+
+&mmc1 {
+       pinctrl-0 = <&mmc1_pins &mmc1_wp_pins>;
+       wp-gpios = <&gpio1 29 GPIO_ACTIVE_LOW>; /* gpio_29 */
+};