* [PATCH] phy: rockchip-usb: power down phy when rockchip phy probe
@ 2015-07-17 7:29 huang lin
2015-07-20 18:10 ` Doug Anderson
0 siblings, 1 reply; 2+ messages in thread
From: huang lin @ 2015-07-17 7:29 UTC (permalink / raw)
To: dianders, lyz, heiko
Cc: huang lin, kishon, linux-kernel, linux-arm-kernel, linux-rockchip
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
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] phy: rockchip-usb: power down phy when rockchip phy probe
2015-07-17 7:29 [PATCH] phy: rockchip-usb: power down phy when rockchip phy probe huang lin
@ 2015-07-20 18:10 ` Doug Anderson
0 siblings, 0 replies; 2+ messages in thread
From: Doug Anderson @ 2015-07-20 18:10 UTC (permalink / raw)
To: huang lin
Cc: lyz, Heiko Stübner, Kishon Vijay Abraham I, linux-kernel,
linux-arm-kernel, open list:ARM/Rockchip SoC...
hl,
On Fri, Jul 17, 2015 at 12:29 AM, huang lin <hl@rock-chips.com> wrote:
> 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(+)
Looks right to me.
Reviewed-by: Douglas Anderson <dianders@chromium.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2015-07-17 7:29 [PATCH] phy: rockchip-usb: power down phy when rockchip phy probe huang lin
2015-07-20 18:10 ` Doug Anderson
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