Messages in this thread Patch in this message | | | From | huang lin <> | Subject | [PATCH] phy: rockchip-usb: power down phy when rockchip phy probe | Date | Fri, 17 Jul 2015 15:29:25 +0800 |
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rockchip phy are enable when soc reset, to save power consumption, we disable it when probe, and enable each phy when it use
Signed-off-by: huang lin <hl@rock-chips.com> --- drivers/phy/phy-rockchip-usb.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/phy/phy-rockchip-usb.c b/drivers/phy/phy-rockchip-usb.c index 7d4c336..3b92d7f 100644 --- a/drivers/phy/phy-rockchip-usb.c +++ b/drivers/phy/phy-rockchip-usb.c @@ -98,6 +98,7 @@ static int rockchip_usb_phy_probe(struct platform_device *pdev) struct device_node *child; struct regmap *grf; unsigned int reg_offset; + int err; grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,grf"); if (IS_ERR(grf)) { @@ -129,6 +130,11 @@ static int rockchip_usb_phy_probe(struct platform_device *pdev) return PTR_ERR(rk_phy->phy); } phy_set_drvdata(rk_phy->phy, rk_phy); + + /* only power up usb phy when it use, so disable it when init*/ + err = rockchip_usb_phy_power(rk_phy, 1); + if (err) + return err; } phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); -- 1.9.1
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