ROC-PC is not able to boot linux console if PWM2_d is
unattached to any pinctrl logic.
To be precise the linux boot hang with last logs as,
...
.....
[ 0.003367] Console: colour dummy device 80x25
[ 0.003788] printk: console [tty0] enabled
[ 0.004178] printk: bootconsole [uart8250] disabled
In ROC-PC the PWM2_d pin is connected to LOG_DVS_PWM of
VDD_LOG. So, for normal working operations this needs to
active and pull-down.
This patch fix, by attaching pinctrl active and pull-down
the pwm2.
Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts
index 19f7732d728c..c53f3d571620 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts
@@ -548,6 +548,8 @@
};
&pwm2 {
+ pinctrl-names = "active";
+ pinctrl-0 = <&pwm2_pin_pull_down>;
status = "okay";
};
--
2.18.0.321.gffc6fa0e3
