static int __maybe_unused mtu3_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct ssusb_mtk *ssusb = platform_get_drvdata(pdev);
int ret;
dev_dbg(dev, "%s\n", __func__);
if (!ssusb->is_host)
return 0;
ssusb_wakeup_set(ssusb, false);
ret = ssusb_clks_enable(ssusb);
if (ret)
goto clks_err;
ret = ssusb_phy_power_on(ssusb);
if (ret)
goto phy_err;
ssusb_host_enable(ssusb);
return 0;
phy_err:
ssusb_clks_disable(ssusb);
clks_err:
return ret;
}
static void ssusb_rscs_exit(struct ssusb_mtk *ssusb)
{
ssusb_clks_disable(ssusb);
regulator_disable(ssusb->vusb33);
ssusb_phy_power_off(ssusb);
ssusb_phy_exit(ssusb);
}
/*
* when support dual-role mode, we reject suspend when
* it works as device mode;
*/
static int __maybe_unused mtu3_suspend(struct device *dev)
{
struct ssusb_mtk *ssusb = dev_get_drvdata(dev);
dev_dbg(dev, "%s\n", __func__);
/* REVISIT: disconnect it for only device mode? */
if (!ssusb->is_host)
return 0;
ssusb_host_disable(ssusb, true);
ssusb_phy_power_off(ssusb);
ssusb_clks_disable(ssusb);
ssusb_wakeup_set(ssusb, true);
return 0;
}
static int ssusb_rscs_init(struct ssusb_mtk *ssusb)
{
int ret = 0;
ret = regulator_enable(ssusb->vusb33);
if (ret) {
dev_err(ssusb->dev, "failed to enable vusb33\n");
goto vusb33_err;
}
ret = ssusb_clks_enable(ssusb);
if (ret)
goto clks_err;
ret = ssusb_phy_init(ssusb);
if (ret) {
dev_err(ssusb->dev, "failed to init phy\n");
goto phy_init_err;
}
ret = ssusb_phy_power_on(ssusb);
if (ret) {
dev_err(ssusb->dev, "failed to power on phy\n");
goto phy_err;
}
return 0;
phy_err:
ssusb_phy_exit(ssusb);
phy_init_err:
ssusb_clks_disable(ssusb);
clks_err:
regulator_disable(ssusb->vusb33);
vusb33_err:
return ret;
}