[PATCHv1] arm: dts: meson: Fix the pwm regulator supply property in node

[PATCHv1] arm: dts: meson: Fix the pwm regulator supply property in node

[Anand Moon]

On enable 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: 524d96083b66 ("ARM: dts: meson8b: odroidc1: add the CPU voltage regulator")
Fixes: 8bdf38be712d ("ARM: dts: meson8b: odroidc1: add the VDDEE regulator")

Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 arch/arm/boot/dts/meson8b-odroidc1.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/meson8b-odroidc1.dts b/arch/arm/boot/dts/meson8b-odroidc1.dts
index c440ef94e082..04356bc639fa 100644
--- a/arch/arm/boot/dts/meson8b-odroidc1.dts
+++ b/arch/arm/boot/dts/meson8b-odroidc1.dts
@@ -131,7 +131,7 @@ vcck: regulator-vcck {
 		regulator-min-microvolt = <860000>;
 		regulator-max-microvolt = <1140000>;
 
-		vin-supply = <&p5v0>;
+		pwm-supply = <&p5v0>;
 
 		pwms = <&pwm_cd 0 12218 0>;
 		pwm-dutycycle-range = <91 0>;
@@ -163,7 +163,7 @@ vddee: regulator-vddee {
 		regulator-min-microvolt = <860000>;
 		regulator-max-microvolt = <1140000>;
 
-		vin-supply = <&p5v0>;
+		pwm-supply = <&p5v0>;
 
 		pwms = <&pwm_cd 1 12218 0>;
 		pwm-dutycycle-range = <91 0>;
-- 
2.31.1

Re: [PATCHv1] arm: dts: meson: Fix the pwm regulator supply property in node

[Martin Blumenstingl]

Hi Anand,

On Tue, Jun 29, 2021 at 2:15 PM Anand Moon <linux.amoon@gmail.com> wrote:
>
> On enable CONFIG_REGULATOR_DEBUG=y we observer below debug logs.
I (as non-native english speaker) suggest rewording this to:
After enabling CONFIG_REGULATOR_DEBUG=y we observe 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
excellent catch, thanks for sending a patch!

> Fixes: 524d96083b66 ("ARM: dts: meson8b: odroidc1: add the CPU voltage regulator")
> Fixes: 8bdf38be712d ("ARM: dts: meson8b: odroidc1: add the VDDEE regulator")
>
> Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

For the subject:
- patches for 32-bit ARM should start with upper-case ARM
- personally I also include the board name so the git history is easier to read

My suggestion for the subject line is:
ARM: dts: meson8b: odroidc1: Fix the pwm regulator supply properties

Are you also planning to send patches for the following 32-bit SoC boards?
- arch/arm/boot/dts/meson8b-mxq.dts
- arch/arm/boot/dts/meson8b-ec100.dts


Best regards,
Martin

Re: [PATCHv1] arm: dts: meson: Fix the pwm regulator supply property in node

[Anand Moon]

Hi Martin,

Thanks for your review comments.

On Tue, 29 Jun 2021 at 21:31, Martin Blumenstingl
<martin.blumenstingl@googlemail.com> wrote:
>
> Hi Anand,
>
> On Tue, Jun 29, 2021 at 2:15 PM Anand Moon <linux.amoon@gmail.com> wrote:
> >
> > On enable CONFIG_REGULATOR_DEBUG=y we observer below debug logs.
> I (as non-native english speaker) suggest rewording this to:
> After enabling CONFIG_REGULATOR_DEBUG=y we observe below debug logs.
>
Opps: I will fix this in the next version.

> > 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
> excellent catch, thanks for sending a patch!
>
> > Fixes: 524d96083b66 ("ARM: dts: meson8b: odroidc1: add the CPU voltage regulator")
> > Fixes: 8bdf38be712d ("ARM: dts: meson8b: odroidc1: add the VDDEE regulator")
> >
> > Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> > Signed-off-by: Anand Moon <linux.amoon@gmail.com>
> Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
>
Thanks

> For the subject:
> - patches for 32-bit ARM should start with upper-case ARM
> - personally I also include the board name so the git history is easier to read
>
> My suggestion for the subject line is:
> ARM: dts: meson8b: odroidc1: Fix the pwm regulator supply properties
>
Ok I will try to incorporate your suggestion in the next version.

> Are you also planning to send patches for the following 32-bit SoC boards?
> - arch/arm/boot/dts/meson8b-mxq.dts
> - arch/arm/boot/dts/meson8b-ec100.dts
>
Ok I will try to send all updates in the next series.

>
> Best regards,
> Martin