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authorIgor Grinberg <grinberg@compulab.co.il>2009-12-06 08:45:43 -0500
committerEric Miao <eric.y.miao@gmail.com>2009-12-13 08:42:57 -0500
commit1b82e4c32fba96d8805b1e2126ba5382e56fac32 (patch)
tree4cb7bd20610d198beed7df7b3f87357e0fe14c38
parentf40542532e96dda5506eb76badea322f2ae4731c (diff)
[ARM] pxa/em-x270: fix usb hub power up/reset sequence
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>
-rw-r--r--arch/arm/mach-pxa/em-x270.c11
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 1c0de808b54d..c8a01bc85fde 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)
497 goto err_free_vbus_gpio; 497 goto err_free_vbus_gpio;
498 498
499 /* USB Hub power-on and reset */ 499 /* USB Hub power-on and reset */
500 gpio_direction_output(usb_hub_reset, 0); 500 gpio_direction_output(usb_hub_reset, 1);
501 gpio_direction_output(GPIO9_USB_VBUS_EN, 0);
501 regulator_enable(em_x270_usb_ldo); 502 regulator_enable(em_x270_usb_ldo);
502 gpio_set_value(usb_hub_reset, 1);
503 gpio_set_value(usb_hub_reset, 0); 503 gpio_set_value(usb_hub_reset, 0);
504 gpio_set_value(usb_hub_reset, 1);
504 regulator_disable(em_x270_usb_ldo); 505 regulator_disable(em_x270_usb_ldo);
505 regulator_enable(em_x270_usb_ldo); 506 regulator_enable(em_x270_usb_ldo);
506 gpio_set_value(usb_hub_reset, 1); 507 gpio_set_value(usb_hub_reset, 0);
507 508 gpio_set_value(GPIO9_USB_VBUS_EN, 1);
508 /* enable VBUS */
509 gpio_direction_output(GPIO9_USB_VBUS_EN, 1);
510 509
511 return 0; 510 return 0;
512 511