| Date | Wed, 16 Dec 2009 19:55:51 -0800 | From | Greg KH <> | Subject | [054/151] [ARM] pxa/em-x270: fix usb hub power up/reset sequence |
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2.6.32-stable review patch. If anyone has any objections, please let us know.
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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;
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