[PATCH 6/6] regulator: anatop: set default voltage selector for pcie

Dong Aisheng aisheng.dong at nxp.com
Tue Apr 11 21:58:47 EDT 2017

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 at gmail.com>
Cc: Mark Brown <broonie at kernel.org>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Sascha Hauer <kernel at pengutronix.de>
Cc: Robin Gong <yibin.gong at nxp.com>
Cc: Richard Zhu <hongxing.zhu at nxp.com>
Signed-off-by: Richard Zhu <hongxing.zhu at nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong at nxp.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 6da0b20..910adfd 100644
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -301,6 +301,11 @@ static int anatop_regulator_probe(struct platform_device *pdev)
 		if (!sreg->sel && rdesc->name && !strcmp(rdesc->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;

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