regulator: fix: enable gpio when requested
The fix in commit b7adcdd073c0 has the side-effect that the regulator
will be disabled when requesting the relevant gpio in
regulator_common_ofdata_to_platdata() and enabled in
regulator_pre_probe() when the regulator was already enabled.
This leads to a short interruption in the 3.3V power to the PCIe
slot on the firefly-rk3399 which makes an ADATA SX8000NP NVMe SSD
unhappy.
Fix this by setting the GPIOD_IS_OUT_ACTIVE flag again when the
'regulator-boot-on' property is set, but check for this property
explicitly instead of relying on the "boot_on" member of
the uclass platdata.
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Tested-by: Patrice Chotard <patrice.chotard@st.com>
diff --git a/drivers/power/regulator/regulator_common.c b/drivers/power/regulator/regulator_common.c
index 16d9412..4cfcc31 100644
--- a/drivers/power/regulator/regulator_common.c
+++ b/drivers/power/regulator/regulator_common.c
@@ -19,6 +19,8 @@
if (!dev_read_bool(dev, "enable-active-high"))
flags |= GPIOD_ACTIVE_LOW;
+ if (dev_read_bool(dev, "regulator-boot-on"))
+ flags |= GPIOD_IS_OUT_ACTIVE;
/* Get optional enable GPIO desc */
gpio = &dev_pdata->gpio;