Since priv->init_voltage is an unsigned integer it can never be
negative. So the current code fails to detect a missing
'regulator-init-microvolt' property and instead misconfigures the
PWM device. Fix this by making the relevant members of
'struct pwm_regulator_info' signed integers.
Signed-off-by: Mark Kettenis <kette...@openbsd.org>
---
The current device tree for the Firefly-RK3399 does not have a
'regulator-init-microvolt' property for the 'vdd-log' regulator.
Without this fix U-Boot configures a voltage that is too low which
causes the Ethernet interface to drop almost all packets.
This is the same patch that I sent a couple of days ago, but was bounced
since I wasn't subscribed to the mailing list at that point. Funily enough
the message did make it into the mailing list archive. Resending to make
sure it does reach subscribers.
drivers/power/regulator/pwm_regulator.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/power/regulator/pwm_regulator.c
b/drivers/power/regulator/pwm_regulator.c
index a6c9fccd68..00a7cca7f7 100644
--- a/drivers/power/regulator/pwm_regulator.c
+++ b/drivers/power/regulator/pwm_regulator.c
@@ -32,13 +32,13 @@ struct pwm_regulator_info {
bool polarity;
struct udevice *pwm;
/* initialize voltage of regulator */
- unsigned int init_voltage;
+ int init_voltage;
/* the maximum voltage of regulator */
- unsigned int max_voltage;
+ int max_voltage;
/* the minimum voltage of regulator */
- unsigned int min_voltage;
+ int min_voltage;
/* the current voltage of regulator */
- unsigned int volt_uV;
+ int volt_uV;
};
static int pwm_regulator_enable(struct udevice *dev, bool enable)
--
2.13.0
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
