Since we have both USB2 and USB3 PHYs for cdns3 controller, it is better we have a unity API to handle both USB2 and USB3's power, it could simplify code for error handling and further power management implementation. Reviewed-by: Jun Li <jun.li@xxxxxxx> Signed-off-by: Peter Chen <peter.chen@xxxxxxx> --- drivers/usb/cdns3/core.c | 44 ++++++++++++++++++++++++++-------------- 1 file changed, 29 insertions(+), 15 deletions(-) diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c index 19bbb5b7e6b6..bfd09aa98c12 100644 --- a/drivers/usb/cdns3/core.c +++ b/drivers/usb/cdns3/core.c @@ -384,6 +384,28 @@ static int cdns3_role_set(struct usb_role_switch *sw, enum usb_role role) return ret; } +static int cdns3_set_phy_power(struct cdns3 *cdns, bool on) +{ + int ret = 0; + + if (on) { + ret = phy_power_on(cdns->usb2_phy); + if (ret) + return ret; + + ret = phy_power_on(cdns->usb3_phy); + if (ret) { + phy_power_off(cdns->usb2_phy); + return ret; + } + } else { + phy_power_off(cdns->usb3_phy); + phy_power_off(cdns->usb2_phy); + } + + return 0; +} + /** * cdns3_probe - probe for cdns3 core device * @pdev: Pointer to cdns3 core platform device @@ -477,14 +499,10 @@ static int cdns3_probe(struct platform_device *pdev) if (ret) goto err1; - ret = phy_power_on(cdns->usb2_phy); + ret = cdns3_set_phy_power(cdns, true); if (ret) goto err2; - ret = phy_power_on(cdns->usb3_phy); - if (ret) - goto err3; - sw_desc.set = cdns3_role_set; sw_desc.get = cdns3_role_get; sw_desc.allow_userspace_control = true; @@ -496,16 +514,16 @@ static int cdns3_probe(struct platform_device *pdev) if (IS_ERR(cdns->role_sw)) { ret = PTR_ERR(cdns->role_sw); dev_warn(dev, "Unable to register Role Switch\n"); - goto err4; + goto err3; } ret = cdns3_drd_init(cdns); if (ret) - goto err5; + goto err4; ret = cdns3_core_init_role(cdns); if (ret) - goto err5; + goto err4; device_set_wakeup_capable(dev, true); pm_runtime_set_active(dev); @@ -522,14 +540,11 @@ static int cdns3_probe(struct platform_device *pdev) dev_dbg(dev, "Cadence USB3 core: probe succeed\n"); return 0; -err5: +err4: cdns3_drd_exit(cdns); usb_role_switch_unregister(cdns->role_sw); -err4: - phy_power_off(cdns->usb3_phy); - err3: - phy_power_off(cdns->usb2_phy); + cdns3_set_phy_power(cdns, false); err2: phy_exit(cdns->usb3_phy); err1: @@ -553,8 +568,7 @@ static int cdns3_remove(struct platform_device *pdev) pm_runtime_put_noidle(&pdev->dev); cdns3_exit_roles(cdns); usb_role_switch_unregister(cdns->role_sw); - phy_power_off(cdns->usb2_phy); - phy_power_off(cdns->usb3_phy); + cdns3_set_phy_power(cdns, false); phy_exit(cdns->usb2_phy); phy_exit(cdns->usb3_phy); return 0; -- 2.17.1