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| author | Igor Grinberg <grinberg@compulab.co.il> | 2009-12-06 15:45:43 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-18 14:04:06 -0800 |
| commit | 08d05bad84c4cc91a92ac9aa8c3106610cc0584b (patch) | |
| tree | 12db3266e7c72c6811a96f87642a4f69a5f2b829 | |
| parent | 61039163321943e3279b89f18e7662e5e596c3d9 (diff) | |
| download | lwn-08d05bad84c4cc91a92ac9aa8c3106610cc0584b.tar.gz lwn-08d05bad84c4cc91a92ac9aa8c3106610cc0584b.zip | |
pxa/em-x270: fix usb hub power up/reset sequence
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>
| -rw-r--r-- | arch/arm/mach-pxa/em-x270.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c index aec7f4214b14..86a87327ad42 100644 --- 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; |