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authorJavier Martin <javier.martin@vista-silicon.com>2012-06-01 09:45:33 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2012-06-05 09:27:59 +0200
commit18847b42f8d157201550015296a222a9009a04da (patch)
tree299145b1f89c321f32556f5d5f26f8b49e369265
parentf90da3c7a52ac0c8f07f4d6cd0a7f7677e831916 (diff)
downloadop-kernel-dev-18847b42f8d157201550015296a222a9009a04da.zip
op-kernel-dev-18847b42f8d157201550015296a222a9009a04da.tar.gz
ARM i.MX27 Visstrim M10: fix gpio handling.
Some GPIOs in Visstrim M10 are used without being registered. This leads to USB and video malfunctions. This patch registers those GPIOs to solve the issue. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--arch/arm/mach-imx/mach-imx27_visstrim_m10.c36
1 files changed, 25 insertions, 11 deletions
diff --git a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
index f7b074f..2c6a783 100644
--- a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
+++ b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
@@ -107,6 +107,8 @@ static const int visstrim_m10_pins[] __initconst = {
PB23_PF_USB_PWR,
PB24_PF_USB_OC,
/* CSI */
+ TVP5150_RSTN | GPIO_GPIO | GPIO_OUT,
+ TVP5150_PWDN | GPIO_GPIO | GPIO_OUT,
PB10_PF_CSI_D0,
PB11_PF_CSI_D1,
PB12_PF_CSI_D2,
@@ -121,6 +123,24 @@ static const int visstrim_m10_pins[] __initconst = {
PB21_PF_CSI_HSYNC,
};
+static const struct gpio visstrim_m10_gpios[] __initconst = {
+ {
+ .gpio = TVP5150_RSTN,
+ .flags = GPIOF_DIR_OUT | GPIOF_INIT_HIGH,
+ .label = "tvp5150_rstn",
+ },
+ {
+ .gpio = TVP5150_PWDN,
+ .flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW,
+ .label = "tvp5150_pwdn",
+ },
+ {
+ .gpio = OTG_PHY_CS_GPIO,
+ .flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW,
+ .label = "usbotg_cs",
+ },
+};
+
/* Camera */
static int visstrim_camera_power(struct device *dev, int on)
{
@@ -164,13 +184,6 @@ static void __init visstrim_camera_init(void)
struct platform_device *pdev;
int dma;
- /* Initialize tvp5150 gpios */
- mxc_gpio_mode(TVP5150_RSTN | GPIO_GPIO | GPIO_OUT);
- mxc_gpio_mode(TVP5150_PWDN | GPIO_GPIO | GPIO_OUT);
- gpio_set_value(TVP5150_RSTN, 1);
- gpio_set_value(TVP5150_PWDN, 0);
- ndelay(1);
-
gpio_set_value(TVP5150_PWDN, 1);
ndelay(1);
gpio_set_value(TVP5150_RSTN, 0);
@@ -351,10 +364,6 @@ static struct i2c_board_info visstrim_m10_i2c_devices[] = {
/* USB OTG */
static int otg_phy_init(struct platform_device *pdev)
{
- gpio_set_value(OTG_PHY_CS_GPIO, 0);
-
- mdelay(10);
-
return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
}
@@ -380,6 +389,11 @@ static void __init visstrim_m10_board_init(void)
if (ret)
pr_err("Failed to setup pins (%d)\n", ret);
+ ret = gpio_request_array(visstrim_m10_gpios,
+ ARRAY_SIZE(visstrim_m10_gpios));
+ if (ret)
+ pr_err("Failed to request gpios (%d)\n", ret);
+
imx27_add_imx_ssi(0, &visstrim_m10_ssi_pdata);
imx27_add_imx_uart0(&uart_pdata);
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