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phy: rockchip-inno-usb2: usb remote wakeup support

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This adds support usb remote wakeup both host-port and otg-port,
each port can detect linestate irq then wakeup the whole system.

Conflicts:
        drivers/phy/rockchip/phy-rockchip-inno-usb2.c

Change-Id: I5efcf958131827548954deb9360b9e98aa4bd0bc
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
This commit is contained in:
Frank Wang
2016-09-18 15:07:37 +08:00
committed by Tao Huang
parent 0add0fc46b
commit e4f98836e6
1 changed files with 92 additions and 2 deletions
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94
drivers/phy/rockchip/phy-rockchip-inno-usb2.c
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@@ -906,6 +906,8 @@ static irqreturn_t rockchip_usb2phy_linestate_irq(int irq, void *data)
if (!property_enabled(rphy->grf, &rport->port_cfg->ls_det_st))
return IRQ_NONE;
dev_dbg(&rport->phy->dev, "linestate interrupt\n");
mutex_lock(&rport->mutex);
/* disable linestate detect irq and clear its status */
@@ -919,8 +921,12 @@ static irqreturn_t rockchip_usb2phy_linestate_irq(int irq, void *data)
* meanwhile, if the phy port is suspended, we need rearm the work to
* resume it and mange its states; otherwise, we do nothing about that.
*/
if (rport->suspended && rport->port_id == USB2PHY_PORT_HOST)
rockchip_usb2phy_sm_work(&rport->sm_work.work);
if (rport->suspended) {
if (rport->port_id == USB2PHY_PORT_HOST)
rockchip_usb2phy_sm_work(&rport->sm_work.work);
else
rockchip_usb2phy_power_on(rport->phy);
}
return IRQ_HANDLED;
}
@@ -1073,6 +1079,21 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
"failed to request otg-bvalid irq handle\n");
goto out;
}
rport->ls_irq = of_irq_get_byname(child_np, "linestate");
if (rport->ls_irq < 0) {
dev_err(rphy->dev, "no linestate irq provided\n");
goto out;
}
ret = devm_request_threaded_irq(rphy->dev, rport->ls_irq, NULL,
rockchip_usb2phy_linestate_irq,
IRQF_ONESHOT,
"rockchip_usb2phy", rport);
if (ret) {
dev_err(rphy->dev, "failed to request linestate irq handle\n");
goto out;
}
}
if (!IS_ERR(rphy->edev)) {
@@ -1251,6 +1272,66 @@ static int rk3366_usb2phy_tuning(struct rockchip_usb2phy *rphy)
return ret;
}
#ifdef CONFIG_PM_SLEEP
static int rockchip_usb2phy_pm_suspend(struct device *dev)
{
struct rockchip_usb2phy *rphy = dev_get_drvdata(dev);
struct rockchip_usb2phy_port *rport;
int index;
for (index = 0; index < rphy->phy_cfg->num_ports; index++) {
rport = &rphy->ports[index];
if (!rport->phy)
continue;
if (!rport->suspended) {
if (rport->port_id == USB2PHY_PORT_HOST)
rockchip_usb2phy_sm_work(&rport->sm_work.work);
else
rockchip_usb2phy_power_off(rport->phy);
}
/* activate the linestate to detect the next interrupt. */
property_enable(rphy->grf, &rport->port_cfg->ls_det_clr, true);
property_enable(rphy->grf, &rport->port_cfg->ls_det_en, true);
}
return 0;
}
static int rockchip_usb2phy_pm_resume(struct device *dev)
{
struct rockchip_usb2phy *rphy = dev_get_drvdata(dev);
struct rockchip_usb2phy_port *rport;
int index;
for (index = 0; index < rphy->phy_cfg->num_ports; index++) {
rport = &rphy->ports[index];
if (!rport->phy)
continue;
/*
* Resuming case, for host-port, *_linestate_irq() will take
* over all actions, but for otg-port, we should invoke
* *_power_on() to resume the phy-port manually.
*/
if (rport->suspended && rport->port_id == USB2PHY_PORT_OTG)
rockchip_usb2phy_power_on(rport->phy);
}
return 0;
}
static const struct dev_pm_ops rockchip_usb2phy_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(rockchip_usb2phy_pm_suspend,
rockchip_usb2phy_pm_resume)
};
#define ROCKCHIP_USB2PHY_DEV_PM (&rockchip_usb2phy_dev_pm_ops)
#else
#define ROCKCHIP_USB2PHY_DEV_PM NULL
#endif /* CONFIG_PM_SLEEP */
static const struct rockchip_usb2phy_cfg rk3228_phy_cfgs[] = {
{
.reg = 0x760,
@@ -1384,8 +1465,12 @@ static const struct rockchip_usb2phy_cfg rk3399_phy_cfgs[] = {
.bvalid_det_en = { 0xe3c0, 3, 3, 0, 1 },
.bvalid_det_st = { 0xe3e0, 3, 3, 0, 1 },
.bvalid_det_clr = { 0xe3d0, 3, 3, 0, 1 },
.ls_det_en = { 0xe3c0, 2, 2, 0, 1 },
.ls_det_st = { 0xe3e0, 2, 2, 0, 1 },
.ls_det_clr = { 0xe3d0, 2, 2, 0, 1 },
.utmi_avalid = { 0xe2ac, 7, 7, 0, 1 },
.utmi_bvalid = { 0xe2ac, 12, 12, 0, 1 },
.utmi_ls = { 0xe2ac, 14, 13, 0, 1 },
},
[USB2PHY_PORT_HOST] = {
.phy_sus = { 0xe458, 1, 0, 0x2, 0x1 },
@@ -1419,8 +1504,12 @@ static const struct rockchip_usb2phy_cfg rk3399_phy_cfgs[] = {
.bvalid_det_en = { 0xe3c0, 8, 8, 0, 1 },
.bvalid_det_st = { 0xe3e0, 8, 8, 0, 1 },
.bvalid_det_clr = { 0xe3d0, 8, 8, 0, 1 },
.ls_det_en = { 0xe3c0, 7, 7, 0, 1 },
.ls_det_st = { 0xe3e0, 7, 7, 0, 1 },
.ls_det_clr = { 0xe3d0, 7, 7, 0, 1 },
.utmi_avalid = { 0xe2ac, 10, 10, 0, 1 },
.utmi_bvalid = { 0xe2ac, 16, 16, 0, 1 },
.utmi_ls = { 0xe2ac, 18, 17, 0, 1 },
},
[USB2PHY_PORT_HOST] = {
.phy_sus = { 0xe468, 1, 0, 0x2, 0x1 },
@@ -1491,6 +1580,7 @@ static struct platform_driver rockchip_usb2phy_driver = {
.probe = rockchip_usb2phy_probe,
.driver = {
.name = "rockchip-usb2phy",
.pm = ROCKCHIP_USB2PHY_DEV_PM,
.of_match_table = rockchip_usb2phy_dt_match,
},
};