diff options
author | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-05-16 10:52:58 +0300 |
---|---|---|
committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-06-20 12:32:36 +0300 |
commit | 51f5d49ad6f011ee380b866ea617fd90584189a2 (patch) | |
tree | 12a149b73d2606574fbb52a5e0110aa6ceb3cfe9 /drivers | |
parent | c499ff71ff2a281366c6ec7a904c547d806cbcd1 (diff) |
usb: dwc3: core: simplify suspend/resume operations
now that we have re-factored dwc3_core_init() and
dwc3_core_exit() we can use them for suspend/resume
operations.
This will help us avoid some common mistakes when
patching code when we have duplicated pieces of code
doing the same thing.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/usb/dwc3/core.c | 59 | ||||
-rw-r--r-- | drivers/usb/dwc3/core.h | 3 |
2 files changed, 5 insertions, 57 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index cbdefbb3d302..80e9affd3d77 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1113,33 +1113,19 @@ static int dwc3_remove(struct platform_device *pdev) static int dwc3_suspend(struct device *dev) { struct dwc3 *dwc = dev_get_drvdata(dev); - unsigned long flags; - - spin_lock_irqsave(&dwc->lock, flags); switch (dwc->dr_mode) { case USB_DR_MODE_PERIPHERAL: case USB_DR_MODE_OTG: dwc3_gadget_suspend(dwc); - /* FALLTHROUGH */ + break; case USB_DR_MODE_HOST: default: - dwc3_event_buffers_cleanup(dwc); + /* do nothing */ break; } - dwc->gctl = dwc3_readl(dwc->regs, DWC3_GCTL); - spin_unlock_irqrestore(&dwc->lock, flags); - - usb_phy_shutdown(dwc->usb3_phy); - usb_phy_shutdown(dwc->usb2_phy); - phy_exit(dwc->usb2_generic_phy); - phy_exit(dwc->usb3_generic_phy); - - usb_phy_set_suspend(dwc->usb2_phy, 1); - usb_phy_set_suspend(dwc->usb3_phy, 1); - WARN_ON(phy_power_off(dwc->usb2_generic_phy) < 0); - WARN_ON(phy_power_off(dwc->usb3_generic_phy) < 0); + dwc3_core_exit(dwc); pinctrl_pm_select_sleep_state(dev); @@ -1149,36 +1135,14 @@ static int dwc3_suspend(struct device *dev) static int dwc3_resume(struct device *dev) { struct dwc3 *dwc = dev_get_drvdata(dev); - unsigned long flags; int ret; pinctrl_pm_select_default_state(dev); - usb_phy_set_suspend(dwc->usb2_phy, 0); - usb_phy_set_suspend(dwc->usb3_phy, 0); - ret = phy_power_on(dwc->usb2_generic_phy); - if (ret < 0) + ret = dwc3_core_init(dwc); + if (ret) return ret; - ret = phy_power_on(dwc->usb3_generic_phy); - if (ret < 0) - goto err_usb2phy_power; - - usb_phy_init(dwc->usb3_phy); - usb_phy_init(dwc->usb2_phy); - ret = phy_init(dwc->usb2_generic_phy); - if (ret < 0) - goto err_usb3phy_power; - - ret = phy_init(dwc->usb3_generic_phy); - if (ret < 0) - goto err_usb2phy_init; - - spin_lock_irqsave(&dwc->lock, flags); - - dwc3_event_buffers_setup(dwc); - dwc3_writel(dwc->regs, DWC3_GCTL, dwc->gctl); - switch (dwc->dr_mode) { case USB_DR_MODE_PERIPHERAL: case USB_DR_MODE_OTG: @@ -1190,24 +1154,11 @@ static int dwc3_resume(struct device *dev) break; } - spin_unlock_irqrestore(&dwc->lock, flags); - pm_runtime_disable(dev); pm_runtime_set_active(dev); pm_runtime_enable(dev); return 0; - -err_usb2phy_init: - phy_exit(dwc->usb2_generic_phy); - -err_usb3phy_power: - phy_power_off(dwc->usb3_generic_phy); - -err_usb2phy_power: - phy_power_off(dwc->usb2_generic_phy); - - return ret; } #endif /* CONFIG_PM_SLEEP */ diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index e01f6371d118..211729519eb4 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -836,9 +836,6 @@ struct dwc3 { enum usb_dr_mode dr_mode; - /* used for suspend/resume */ - u32 gctl; - u32 fladj; u32 nr_scratch; u32 u1u2; |