This is a note to let you know that I've just added the patch titled
ARM: dts: meson8b: mxq: Fix the pwm regulator supply properties
to the 5.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm-dts-meson8b-mxq-fix-the-pwm-regulator-supply-pro.patch
and it can be found in the queue-5.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4eae1590bf2f130b043f2dfe5fd3335c88cdd159
Author: Anand Moon <linux.amoon@xxxxxxxxx>
Date: Mon Jul 5 11:23:54 2021 +0000
ARM: dts: meson8b: mxq: Fix the pwm regulator supply properties
[ Upstream commit 632062e540becbbcb067523ec8bcadb1239d9578 ]
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.
Add missing pwm-supply for regulator-vcck regulator node.
[ 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: dee51cd0d2e8 ("ARM: dts: meson8b: mxq: add the VDDEE regulator")
Fixes: d94f60e3dfa0 ("ARM: dts: meson8b: mxq: improve support for the TRONFY MXQ S805")
Cc: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210705112358.3554-3-linux.amoon@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm/boot/dts/meson8b-mxq.dts b/arch/arm/boot/dts/meson8b-mxq.dts
index f3937d55472d..7adedd3258c3 100644
--- a/arch/arm/boot/dts/meson8b-mxq.dts
+++ b/arch/arm/boot/dts/meson8b-mxq.dts
@@ -34,6 +34,8 @@
regulator-min-microvolt = <860000>;
regulator-max-microvolt = <1140000>;
+ pwm-supply = <&vcc_5v>;
+
pwms = <&pwm_cd 0 1148 0>;
pwm-dutycycle-range = <100 0>;
@@ -79,7 +81,7 @@
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>;
