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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 Huang, Tao
parent 3b4dbd5b83
commit b5bb4868b8
1 changed files with 23 additions and 11 deletions
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34
drivers/phy/phy-rockchip-inno-usb2.c
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@@ -1294,7 +1294,6 @@ static int rockchip_usb2phy_host_port_init(struct rockchip_usb2phy *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);
@@ -1314,6 +1313,16 @@ 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(rphy, &rport->port_cfg->phy_sus, true);
if (ret)
return ret;
rport->suspended = true;
return 0;
}
@@ -1339,14 +1348,6 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *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;
@@ -1385,13 +1386,13 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
extcon_set_state(rphy->edev, EXTCON_USB_VBUS_EN, true);
gpiod_set_value_cansleep(rport->vbus_drv_gpio, 1);
}
return 0;
goto out;
}
rport->vbus_always_on =
of_property_read_bool(child_np, "rockchip,vbus-always-on");
if (rport->vbus_always_on)
return 0;
goto out;
wake_lock_init(&rport->wakelock, WAKE_LOCK_SUSPEND, "rockchip_otg");
INIT_DELAYED_WORK(&rport->chg_work, rockchip_chg_detect_work);
@@ -1455,6 +1456,17 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
}
}
out:
/*
* 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(rphy, &rport->port_cfg->phy_sus, true);
if (ret)
return ret;
rport->suspended = true;
return 0;
}