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Groups > linux.kernel > #1375727
| From | Roger Quadros <rogerq@ti.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v6 08/10] usb: dwc3: core: fix PHY handling during suspend |
| Date | 2016-04-11 13:40 +0200 |
| Message-ID | <rmIme-57L-7@gated-at.bofh.it> (permalink) |
| References | <rmIme-57L-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Felipe Balbi <balbi@kernel.org> we need to power off the PHY during suspend and power it back on during resume. Signed-off-by: Felipe Balbi <balbi@kernel.org> [nsekhar@ti.com: fix call to usb_phy_set_suspend() in dwc3_suspend()] Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> --- drivers/usb/dwc3/core.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index f24c091..60665dd 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1649,6 +1649,11 @@ static int dwc3_suspend(struct device *dev) 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); + pinctrl_pm_select_sleep_state(dev); return 0; @@ -1662,11 +1667,21 @@ static int dwc3_resume(struct device *dev) 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) + 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) - return ret; + goto err_usb3phy_power; ret = phy_init(dwc->usb3_generic_phy); if (ret < 0) @@ -1718,6 +1733,12 @@ static int dwc3_resume(struct device *dev) 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; } -- 2.5.0
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[PATCH v6 08/10] usb: dwc3: core: fix PHY handling during suspend Roger Quadros <rogerq@ti.com> - 2016-04-11 13:40 +0200
Re: [PATCH v6 08/10] usb: dwc3: core: fix PHY handling during suspend Felipe Balbi <balbi@kernel.org> - 2016-04-11 14:30 +0200
Re: [PATCH v6 08/10] usb: dwc3: core: fix PHY handling during suspend Roger Quadros <rogerq@ti.com> - 2016-04-11 15:20 +0200
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