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phy: rockchip-inno-usb2: put phy-port into suspend during probe

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Let us put phy-port into suspend mode at initialization time for
saving power consumption, and usb controller will resume it during
probe time if needed.

Change-Id: Id3a66af8ff17612d54fbc80db087bf67eaee7726
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
This commit is contained in:
Frank Wang
2017-08-15 17:31:11 +08:00
committed by Tao Huang
parent 3ce70ec0d9
commit 997b212301
1 changed files with 31 additions and 17 deletions
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48
drivers/phy/rockchip/phy-rockchip-inno-usb2.c
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@@ -1327,10 +1327,10 @@ static int rockchip_usb2phy_host_port_init(struct rockchip_usb2phy *rphy,
struct device_node *child_np)
{
int ret;
struct regmap *base = get_reg_base(rphy);
rport->port_id = USB2PHY_PORT_HOST;
rport->port_cfg = &rphy->phy_cfg->port_cfgs[USB2PHY_PORT_HOST];
rport->suspended = true;
mutex_init(&rport->mutex);
INIT_DELAYED_WORK(&rport->sm_work, rockchip_usb2phy_sm_work);
@@ -1350,6 +1350,16 @@ static int rockchip_usb2phy_host_port_init(struct rockchip_usb2phy *rphy,
return ret;
}
/*
* Let us put phy-port into suspend mode here for saving power
* consumption, and usb controller will resume it during probe
* time if needed.
*/
ret = property_enable(base, &rport->port_cfg->phy_sus, true);
if (ret)
return ret;
rport->suspended = true;
return 0;
}
@@ -1370,18 +1380,11 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
{
int ret;
int iddig;
struct regmap *base = get_reg_base(rphy);
rport->port_id = USB2PHY_PORT_OTG;
rport->port_cfg = &rphy->phy_cfg->port_cfgs[USB2PHY_PORT_OTG];
rport->state = OTG_STATE_UNDEFINED;
/*
* set suspended flag to true, but actually don't
* put phy in suspend mode, it aims to enable usb
* phy and clock in power_on() called by usb controller
* driver during probe.
*/
rport->suspended = true;
rport->vbus_attached = false;
rport->perip_connected = false;
@@ -1420,14 +1423,13 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
if (ret) {
dev_err(rphy->dev,
"failed to request otg-mux irq handle\n");
goto out;
return ret;
}
} else {
rport->bvalid_irq = of_irq_get_byname(child_np, "otg-bvalid");
if (rport->bvalid_irq < 0) {
dev_err(rphy->dev, "no vbus valid irq provided\n");
ret = rport->bvalid_irq;
goto out;
return rport->bvalid_irq;
}
ret = devm_request_threaded_irq(rphy->dev, rport->bvalid_irq,
@@ -1439,13 +1441,13 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
if (ret) {
dev_err(rphy->dev,
"failed to request otg-bvalid irq handle\n");
goto out;
return ret;
}
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;
return rport->ls_irq;
}
ret = devm_request_threaded_irq(rphy->dev, rport->ls_irq, NULL,
@@ -1454,7 +1456,7 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
"rockchip_usb2phy", rport);
if (ret) {
dev_err(rphy->dev, "failed to request linestate irq handle\n");
goto out;
return ret;
}
}
@@ -1490,12 +1492,24 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
ret = devm_extcon_register_notifier(rphy->dev, rphy->edev,
EXTCON_USB_HOST, &rport->event_nb);
if (ret)
if (ret) {
dev_err(rphy->dev, "register USB HOST notifier failed\n");
return ret;
}
}
out:
return ret;
/*
* Let us put phy-port into suspend mode here for saving power
* consumption, and usb controller will resume it during probe
* time if needed.
*/
ret = property_enable(base, &rport->port_cfg->phy_sus, true);
if (ret)
return ret;
rport->suspended = true;
return 0;
}
static int rockchip_usb2phy_probe(struct platform_device *pdev)