[PATCH 2/3] phy: rockchip-usb: power down phy when rockchip phy probe

From: Kishon Vijay Abraham I
Date: Tue Sep 29 2015 - 02:35:58 EST


From: huang lin <hl@xxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxx>
Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
---
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 5a5c073..91d6f34 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);
--
1.7.9.5

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