ARM: dts: imx6: RIoTboard provide gpio-line-names

gpio-line-names may help to make work with GPIOs from user space easier.
Following examples are provided with libgpiod
https://github.com/brgl/libgpiod :
|# Toggle a GPIO by name, then wait for the user to press ENTER.
|$ gpioset --mode=wait `gpiofind "USR-LED-2"`=1
|# Pause execution until a single event of any type occurs. Don't print
|# anything. Find the line by name.
|$ gpiomon --num-events=1 --silent `gpiofind "USR-IN"`

Used names was taken from RIoTboard schematics, version 1 (2013.12.07).

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx6dl-riotboard.dts b/arch/arm/boot/dts/imx6dl-riotboard.dts
index 29b45f2e64e0ad1073a9289588601cbcfb358719..275c6c05219dbdc54ba4c994459a45506608e65b 100644 (file)
--- a/arch/arm/boot/dts/imx6dl-riotboard.dts
+++ b/arch/arm/boot/dts/imx6dl-riotboard.dts
@@ -101,6 +101,51 @@ &fec {
        status = "okay";
 };
 
+&gpio1 {
+       gpio-line-names =
+               "", "", "SD2_WP", "", "SD2_CD", "I2C3_SCL",
+                       "I2C3_SDA", "I2C4_SCL",
+               "I2C4_SDA", "", "", "", "", "", "", "",
+               "", "PWM3", "", "", "", "", "", "",
+               "", "", "", "", "", "", "", "";
+};
+
+&gpio3 {
+       gpio-line-names =
+               "", "", "", "", "", "", "", "",
+               "", "", "", "", "", "", "", "",
+               "", "", "", "", "", "", "USB_OTG_VBUS", "",
+               "UART3_TXD", "UART3_RXD", "", "", "EIM_D28", "", "", "";
+};
+
+&gpio4 {
+       gpio-line-names =
+               "", "", "", "", "", "", "UART4_TXD", "UART4_RXD",
+               "UART5_TXD", "UART5_RXD", "", "", "", "", "", "",
+               "GPIO4_16", "GPIO4_17", "GPIO4_18", "GPIO4_19", "",
+                       "CSPI3_CLK", "CSPI3_MOSI", "CSPI3_MISO",
+               "CSPI3_CS0", "CSPI3_CS1", "GPIO4_26", "GPIO4_27",
+                       "CSPI3_RDY", "PWM1", "PWM2", "GPIO4_31";
+};
+
+&gpio5 {
+       gpio-line-names =
+               "", "", "EIM_A25", "", "", "GPIO5_05", "GPIO5_06",
+                       "GPIO5_07",
+               "GPIO5_08", "CSPI2_CS1", "CSPI2_MOSI", "CSPI2_MISO",
+                       "CSPI2_CS0", "CSPI2_CLK", "", "",
+               "", "", "", "", "", "", "", "",
+               "", "", "", "", "", "", "", "";
+};
+
+&gpio7 {
+       gpio-line-names =
+               "SD3_CD", "SD3_WP", "", "", "", "", "", "",
+               "", "", "", "", "", "", "", "",
+               "", "", "", "", "", "", "", "",
+               "", "", "", "", "", "", "", "";
+};
+
 &hdmi {
        ddc-i2c-bus = <&i2c2>;
        status = "okay";