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ARM: OMAP3: cm-t35: Add reset for USB hub

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USB hub is not functional until is reset.
Reset the USB hub on SB-T35.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
[tony@atomide.com: updated subject]
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Igor Grinberg 2011-12-13 10:48:53 -08:00 committed by Tony Lindgren
parent 19ce643997
commit 039401f3ef
1 changed files with 20 additions and 2 deletions
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20
arch/arm/mach-omap2/board-cm-t35.c
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@ -54,6 +54,7 @@
#include "common-board-devices.h"
#define CM_T35_GPIO_PENDOWN 57
#define SB_T35_USB_HUB_RESET_GPIO 167
#define CM_T35_SMSC911X_CS 5
#define CM_T35_SMSC911X_GPIO 163
@ -436,6 +437,23 @@ static struct usbhs_omap_board_data usbhs_bdata __initdata = {
.reset_gpio_port[2] = -EINVAL
};
static void cm_t35_init_usbh(void)
{
int err;
err = gpio_request_one(SB_T35_USB_HUB_RESET_GPIO,
GPIOF_OUT_INIT_LOW, "usb hub rst");
if (err) {
pr_err("SB-T35: usb hub rst gpio request failed: %d\n", err);
} else {
udelay(10);
gpio_set_value(SB_T35_USB_HUB_RESET_GPIO, 1);
msleep(1);
}
usbhs_init(&usbhs_bdata);
}
static int cm_t35_twl_gpio_setup(struct device *dev, unsigned gpio,
unsigned ngpio)
{
@ -624,7 +642,7 @@ static void __init cm_t3x_common_init(void)
cm_t35_init_display();
usb_musb_init(NULL);
usbhs_init(&usbhs_bdata);
cm_t35_init_usbh();
}
static void __init cm_t35_init(void)