diff options
Diffstat (limited to 'drivers/usb/otg/ab8500-usb.c')
| -rw-r--r-- | drivers/usb/otg/ab8500-usb.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/usb/otg/ab8500-usb.c b/drivers/usb/otg/ab8500-usb.c index 2b85dbce6e2..53fe5db90de 100644 --- a/drivers/usb/otg/ab8500-usb.c +++ b/drivers/usb/otg/ab8500-usb.c @@ -37,6 +37,9 @@ #include <linux/mfd/dbx500-prcmu.h> #include <linux/kernel_stat.h> #include <linux/pm_qos.h> +#include <linux/wakelock.h> + +static struct wake_lock ab8500_musb_wakelock; #define AB8500_MAIN_WD_CTRL_REG 0x01 #define AB8500_USB_LINE_STAT_REG 0x80 @@ -272,6 +275,8 @@ static void ab8500_usb_phy_enable(struct ab8500_usb *ab, bool sel_host) bit = sel_host ? AB8500_BIT_PHY_CTRL_HOST_EN : AB8500_BIT_PHY_CTRL_DEVICE_EN; + wake_lock(&ab8500_musb_wakelock); + clk_enable(ab->sysclk); ab8500_usb_regulator_ctrl(ab, sel_host, true); @@ -334,6 +339,8 @@ static void ab8500_usb_phy_disable(struct ab8500_usb *ab, bool sel_host) prcmu_qos_update_requirement(PRCMU_QOS_ARM_OPP, "usb", 25); } + + wake_unlock(&ab8500_musb_wakelock); } #define ab8500_usb_host_phy_en(ab) ab8500_usb_phy_enable(ab, true) @@ -1071,6 +1078,7 @@ static int __devinit ab8500_usb_probe(struct platform_device *pdev) dev_info(&pdev->dev, "revision 0x%2x driver initialized\n", rev); prcmu_qos_add_requirement(PRCMU_QOS_ARM_OPP, "usb", 25); + wake_lock_init(&ab8500_musb_wakelock, WAKE_LOCK_SUSPEND, "ab8500-usb"); err = ab8500_usb_boot_detect(ab); if (err < 0) |