[054/151] [ARM] pxa/em-x270: fix usb hub power up/reset sequence

Greg KH
2009-12-17T04:05:16Z

From: Igor Grinberg <grinberg@compulab.co.il>

commit 1b82e4c32fba96d8805b1e2126ba5382e56fac32 upstream.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
arch/arm/mach-pxa/em-x270.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)

--- a/arch/arm/mach-pxa/em-x270.c
+++ b/arch/arm/mach-pxa/em-x270.c
@@ -497,16 +497,15 @@ static int em_x270_usb_hub_init(void)
goto err_free_vbus_gpio;

/* USB Hub power-on and reset */
- gpio_direction_output(usb_hub_reset, 0);
+ gpio_direction_output(usb_hub_reset, 1);
+ gpio_direction_output(GPIO9_USB_VBUS_EN, 0);
regulator_enable(em_x270_usb_ldo);
- gpio_set_value(usb_hub_reset, 1);
gpio_set_value(usb_hub_reset, 0);
+ gpio_set_value(usb_hub_reset, 1);
regulator_disable(em_x270_usb_ldo);
regulator_enable(em_x270_usb_ldo);
- gpio_set_value(usb_hub_reset, 1);
-
- /* enable VBUS */
- gpio_direction_output(GPIO9_USB_VBUS_EN, 1);
+ gpio_set_value(usb_hub_reset, 0);
+ gpio_set_value(GPIO9_USB_VBUS_EN, 1);

return 0;