Commit 6597af4e authored by Al Cooper's avatar Al Cooper Committed by Kishon Vijay Abraham I

phy: usb: Put USB phys into IDDQ on suspend to save power in S2 mode

Currently the Phy driver will put the USB phys into the max
power saving mode (IDDQ) when there is no corresponding XHCI, EHCI
or OHCI client (through rmmod, unbind or if the driver is not
builtin). This change will also put the Phys into IDDQ mode
on suspend so that S2 will get the additional power savings.
Signed-off-by: default avatarAl Cooper <alcooperx@gmail.com>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
parent ece5ffd9
...@@ -1002,8 +1002,6 @@ void brcm_usb_uninit_common(struct brcm_usb_init_params *params) ...@@ -1002,8 +1002,6 @@ void brcm_usb_uninit_common(struct brcm_usb_init_params *params)
void brcm_usb_uninit_eohci(struct brcm_usb_init_params *params) void brcm_usb_uninit_eohci(struct brcm_usb_init_params *params)
{ {
if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB))
USB_CTRL_UNSET_FAMILY(params, USB_PM, USB20_HC_RESETB);
} }
void brcm_usb_uninit_xhci(struct brcm_usb_init_params *params) void brcm_usb_uninit_xhci(struct brcm_usb_init_params *params)
......
...@@ -381,8 +381,15 @@ static int brcm_usb_phy_suspend(struct device *dev) ...@@ -381,8 +381,15 @@ static int brcm_usb_phy_suspend(struct device *dev)
struct brcm_usb_phy_data *priv = dev_get_drvdata(dev); struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
if (priv->init_count) { if (priv->init_count) {
clk_disable_unprepare(priv->usb_20_clk); if (priv->phys[BRCM_USB_PHY_3_0].inited)
clk_disable_unprepare(priv->usb_30_clk); brcm_usb_uninit_xhci(&priv->ini);
if (priv->phys[BRCM_USB_PHY_2_0].inited)
brcm_usb_uninit_eohci(&priv->ini);
brcm_usb_uninit_common(&priv->ini);
if (priv->phys[BRCM_USB_PHY_3_0].inited)
clk_disable_unprepare(priv->usb_30_clk);
if (priv->phys[BRCM_USB_PHY_2_0].inited)
clk_disable_unprepare(priv->usb_20_clk);
} }
return 0; return 0;
} }
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment