From: Anand Moon linux.amoon@gmail.com
stable inclusion from stable-5.10.65 commit a11fc1cd8a31f48cae98da86c9aeb6c1b187d731 bugzilla: 182361 https://gitee.com/openeuler/kernel/issues/I4EH3U
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 72ccc373b064ae3ac0c5b5f2306069b60ca118df ]
After enabling CONFIG_REGULATOR_DEBUG=y we observer below debug logs. Changes help link VCCK and VDDEE pwm regulator to 5V regulator supply instead of dummy regulator.
[ 7.117140] pwm-regulator regulator-vcck: Looking up pwm-supply from device tree [ 7.117153] pwm-regulator regulator-vcck: Looking up pwm-supply property in node /regulator-vcck failed [ 7.117184] VCCK: supplied by regulator-dummy [ 7.117194] regulator-dummy: could not add device link regulator.8: -ENOENT [ 7.117266] VCCK: 860 <--> 1140 mV at 986 mV, enabled [ 7.118498] VDDEE: will resolve supply early: pwm [ 7.118515] pwm-regulator regulator-vddee: Looking up pwm-supply from device tree [ 7.118526] pwm-regulator regulator-vddee: Looking up pwm-supply property in node /regulator-vddee failed [ 7.118553] VDDEE: supplied by regulator-dummy [ 7.118563] regulator-dummy: could not add device link regulator.9: -ENOENT
Fixes: 087a1d8b4e4c ("ARM: dts: meson8b: ec100: add the VDDEE regulator") Fixes: 3e7db1c1b7a3 ("ARM: dts: meson8b: ec100: improve the description of the regulators")
Cc: Martin Blumenstingl martin.blumenstingl@googlemail.com Signed-off-by: Anand Moon linux.amoon@gmail.com Reviewed-by: Martin Blumenstingl martin.blumenstingl@googlemail.com Signed-off-by: Neil Armstrong narmstrong@baylibre.com Link: https://lore.kernel.org/r/20210705112358.3554-4-linux.amoon@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com
Signed-off-by: Chen Jun chenjun102@huawei.com --- arch/arm/boot/dts/meson8b-ec100.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/meson8b-ec100.dts b/arch/arm/boot/dts/meson8b-ec100.dts index ed06102a4014..c6824d26dbbf 100644 --- a/arch/arm/boot/dts/meson8b-ec100.dts +++ b/arch/arm/boot/dts/meson8b-ec100.dts @@ -153,7 +153,7 @@ regulator-min-microvolt = <860000>; regulator-max-microvolt = <1140000>;
- vin-supply = <&vcc_5v>; + pwm-supply = <&vcc_5v>;
pwms = <&pwm_cd 0 1148 0>; pwm-dutycycle-range = <100 0>; @@ -237,7 +237,7 @@ regulator-min-microvolt = <860000>; regulator-max-microvolt = <1140000>;
- vin-supply = <&vcc_5v>; + pwm-supply = <&vcc_5v>;
pwms = <&pwm_cd 1 1148 0>; pwm-dutycycle-range = <100 0>;