mx31moboard: initialize 4 input gpios for mx31moboard

These gpios are exported to userspace and are here to be used as
a selector

Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

diff --git a/arch/arm/mach-mx3/mx31moboard.c b/arch/arm/mach-mx3/mx31moboard.c
index ac337d264093f0fd40e688c9191bf186c77aeda8..d3c6bb26271fac4dd0ac3c06f22133434e9aca05 100644 (file)
--- a/arch/arm/mach-mx3/mx31moboard.c
+++ b/arch/arm/mach-mx3/mx31moboard.c
@@ -76,6 +76,9 @@ static unsigned int moboard_pins[] = {
        /* LEDs */
        MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1,
        MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3,
+       /* SEL */
+       MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
+       MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
 };
 
 static struct physmap_flash_data mx31moboard_flash_data = {
@@ -235,6 +238,34 @@ static struct platform_device mx31moboard_leds_device = {
        },
 };
 
+#define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
+#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
+#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
+#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
+
+static void mx31moboard_init_sel_gpios(void)
+{
+       if (!gpio_request(SEL0, "sel0")) {
+               gpio_direction_input(SEL0);
+               gpio_export(SEL0, true);
+       }
+
+       if (!gpio_request(SEL1, "sel1")) {
+               gpio_direction_input(SEL1);
+               gpio_export(SEL1, true);
+       }
+
+       if (!gpio_request(SEL2, "sel2")) {
+               gpio_direction_input(SEL2);
+               gpio_export(SEL2, true);
+       }
+
+       if (!gpio_request(SEL3, "sel3")) {
+               gpio_direction_input(SEL3);
+               gpio_export(SEL3, true);
+       }
+}
+
 static struct platform_device *devices[] __initdata = {
        &mx31moboard_flash,
        &mx31moboard_leds_device,
@@ -256,6 +287,8 @@ static void __init mxc_board_init(void)
        mxc_register_device(&mxc_uart_device0, &uart_pdata);
        mxc_register_device(&mxc_uart_device4, &uart_pdata);
 
+       mx31moboard_init_sel_gpios();
+
        mxc_register_device(&mxc_i2c_device0, &moboard_i2c0_pdata);
        mxc_register_device(&mxc_i2c_device1, &moboard_i2c1_pdata);