diff options
Diffstat (limited to 'arch/arm')
| -rwxr-xr-x | arch/arm/mach-ux500/musb_db8500.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/mach-ux500/musb_db8500.c b/arch/arm/mach-ux500/musb_db8500.c index 89e00b364ab..bc1049cc9f6 100755 --- a/arch/arm/mach-ux500/musb_db8500.c +++ b/arch/arm/mach-ux500/musb_db8500.c @@ -82,7 +82,7 @@ void usb_host_phy_en(int enable) boot_time_flag = USB_DISABLE; } else { #ifdef CONFIG_REGULATOR - regulator_enable(musb_vbus_supply); + regulator_disable(musb_vbus_supply); regulator_set_optimum_mode(musb_vape_supply, 0); #else ab8500_write(AB8500_REGU_CTRL1, @@ -206,6 +206,12 @@ int musb_phy_en(u8 mode) return -1; } regulator_enable(musb_vape_supply); + /* + * When usb cable is not connected, set_optimum to 0 to release any + * OPP constraints on the APE domain with respect to the USB client. + * This is done to run APE at low power OPP when usb is not used. + */ + regulator_set_optimum_mode(musb_vape_supply, 0); musb_vbus_supply = regulator_get(NULL, "v-bus"); if (IS_ERR(musb_vbus_supply)) { ret = PTR_ERR(musb_vbus_supply); |