4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dong Aisheng <aisheng.dong@xxxxxxx>
[ Upstream commit 9bf944548169f6153c3d3778cf983cb5db251a0e ]
Set the initial voltage selector for vddpcie in case it's disabled
by default.
This fixes the below warning:
20c8000.anatop:regulator-vddpcie: Failed to read a valid default voltage selector.
anatop_regulator: probe of 20c8000.anatop:regulator-vddpcie failed with error -22
Cc: Liam Girdwood <lgirdwood@xxxxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
Cc: Sascha Hauer <kernel@xxxxxxxxxxxxxx>
Cc: Robin Gong <yibin.gong@xxxxxxx>
Cc: Richard Zhu <hongxing.zhu@xxxxxxx>
Signed-off-by: Richard Zhu <hongxing.zhu@xxxxxxx>
Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/regulator/anatop-regulator.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -296,6 +296,11 @@ static int anatop_regulator_probe(struct
if (!sreg->sel && !strcmp(sreg->name, "vddpu"))
sreg->sel = 22;
+ /* set the default voltage of the pcie phy to be 1.100v */
+ if (!sreg->sel && rdesc->name &&
+ !strcmp(rdesc->name, "vddpcie"))
+ sreg->sel = 0x10;
+
if (!sreg->bypass && !sreg->sel) {
dev_err(&pdev->dev, "Failed to read a valid default voltage selector.\n");
return -EINVAL;