提交 72370a5c 编写于 作者: F Fabio Estevam 提交者: Sascha Hauer

ARM: mx5/mx51_babbage: Use gpio_request_array for USBH1 pins

Instead of using gpio_request followed by gpio_direction_output use gpio_request_array
when requesting multiple pins.

Also fixed the location of the delay for the reset and make the BABBAGE_USB_PHY_RESET to toggle.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
上级 2e7b1bfc
......@@ -172,6 +172,11 @@ static struct imxi2c_platform_data babbage_hsi2c_data = {
.bitrate = 400000,
};
static struct gpio mx51_babbage_usbh1_gpios[] = {
{ BABBAGE_USBH1_STP, GPIOF_OUT_INIT_LOW, "usbh1_stp" },
{ BABBAGE_USB_PHY_RESET, GPIOF_OUT_INIT_LOW, "usbh1_phy_reset" },
};
static int gpio_usbh1_active(void)
{
iomux_v3_cfg_t usbh1stp_gpio = MX51_PAD_USBH1_STP__GPIO1_27;
......@@ -179,25 +184,19 @@ static int gpio_usbh1_active(void)
/* Set USBH1_STP to GPIO and toggle it */
mxc_iomux_v3_setup_pad(usbh1stp_gpio);
ret = gpio_request(BABBAGE_USBH1_STP, "usbh1_stp");
ret = gpio_request_array(mx51_babbage_usbh1_gpios,
ARRAY_SIZE(mx51_babbage_usbh1_gpios));
if (ret) {
pr_debug("failed to get MX51_PAD_USBH1_STP__GPIO_1_27: %d\n", ret);
pr_debug("failed to get USBH1 pins: %d\n", ret);
return ret;
}
gpio_direction_output(BABBAGE_USBH1_STP, 0);
gpio_set_value(BABBAGE_USBH1_STP, 1);
msleep(100);
gpio_free(BABBAGE_USBH1_STP);
/* De-assert USB PHY RESETB */
ret = gpio_request(BABBAGE_USB_PHY_RESET, "phy_reset");
if (ret) {
pr_debug("failed to get MX51_PAD_EIM_D21__GPIO_2_5: %d\n", ret);
return ret;
}
gpio_direction_output(BABBAGE_USB_PHY_RESET, 1);
msleep(100);
gpio_set_value(BABBAGE_USBH1_STP, 1);
gpio_set_value(BABBAGE_USB_PHY_RESET, 1);
gpio_free_array(mx51_babbage_usbh1_gpios,
ARRAY_SIZE(mx51_babbage_usbh1_gpios));
return 0;
}
......
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