[PATCH AUTOSEL for 4.4 012/101] regulator: anatop: set default voltage selector for pcie

Sasha Levin
2018-03-08T05:05:24Z

From: Dong Aisheng <aisheng.dong@nxp.com>

[ 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@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Robin Gong <yibin.gong@nxp.com>
Cc: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
drivers/regulator/anatop-regulator.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c
index 3a6d0290c54c..c5e272ea4372 100644
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -296,6 +296,11 @@ static int anatop_regulator_probe(struct platform_device *pdev)
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;
--
2.14.1