| Message ID | 20230808110341.57891-1-paul@crapouillou.net (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | ARM: dts: exynos/i9100: Unconditionally enable LDO12 | expand |
On 08/08/2023 13:03, Paul Cercueil wrote: > The kernel hangs for a good 12 seconds without any info being printed to > dmesg, very early in the boot process, if this regulator is not enabled. > > Force-enable it to work around this issue, until we know more about the > underlying problem. > > Signed-off-by: Paul Cercueil <paul@crapouillou.net> > Fixes: 8620cc2f99b7 ("ARM: dts: exynos: Add devicetree file for the Galaxy S2") > Cc: <stable@vger.kernel.org> # v5.8+ > --- > arch/arm/boot/dts/exynos4210-i9100.dts | 8 ++++++++ The path changed long time ago. Really, please do not work on some outdated pmOS or whatever downstream drivers. Best regards, Krzysztof
Le jeudi 10 août 2023 à 08:21 +0200, Krzysztof Kozlowski a écrit : > On 08/08/2023 13:03, Paul Cercueil wrote: > > The kernel hangs for a good 12 seconds without any info being > > printed to > > dmesg, very early in the boot process, if this regulator is not > > enabled. > > > > Force-enable it to work around this issue, until we know more about > > the > > underlying problem. > > > > Signed-off-by: Paul Cercueil <paul@crapouillou.net> > > Fixes: 8620cc2f99b7 ("ARM: dts: exynos: Add devicetree file for the > > Galaxy S2") > > Cc: <stable@vger.kernel.org> # v5.8+ > > --- > > arch/arm/boot/dts/exynos4210-i9100.dts | 8 ++++++++ > > The path changed long time ago. Really, please do not work on some > outdated pmOS or whatever downstream drivers. That was on v6.4.2 yes. I simply forgot to rebase on the latest RC, sorry about that. I'll send a V2, and I now have some more patches touching that file that I can bundle with. -Paul
diff --git a/arch/arm/boot/dts/exynos4210-i9100.dts b/arch/arm/boot/dts/exynos4210-i9100.dts index a9ec1f6c1dea..a076a1dfe41f 100644 --- a/arch/arm/boot/dts/exynos4210-i9100.dts +++ b/arch/arm/boot/dts/exynos4210-i9100.dts @@ -527,6 +527,14 @@ vtcam_reg: LDO12 { regulator-name = "VT_CAM_1.8V"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; + + /* + * Force-enable this regulator; otherwise the + * kernel hangs very early in the boot process + * for about 12 seconds, without apparent + * reason. + */ + regulator-always-on; }; vcclcd_reg: LDO13 {
The kernel hangs for a good 12 seconds without any info being printed to dmesg, very early in the boot process, if this regulator is not enabled. Force-enable it to work around this issue, until we know more about the underlying problem. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Fixes: 8620cc2f99b7 ("ARM: dts: exynos: Add devicetree file for the Galaxy S2") Cc: <stable@vger.kernel.org> # v5.8+ --- arch/arm/boot/dts/exynos4210-i9100.dts | 8 ++++++++ 1 file changed, 8 insertions(+)