| Message ID | 20200318054442.3066726-1-bjorn.andersson@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | arm64: dts: qcom: msm8996: Reduce vdd_apc voltage | expand |
On Wed, 18 Mar 2020 at 06:46, Bjorn Andersson <bjorn.andersson@linaro.org> wrote: > > Some msm8996 based devices are unstable when run with VDD_APC of 1.23V, > which is listed as the maximum voltage in "Turbo" mode. Given that the > CPU cluster is not run in "Turbo" mode, reduce this to 0.98V - the > maximum voltage for nominal operation. > > Fixes: 7a2a2231ef22 ("arm64: dts: apq8096-db820c: Fix VDD core voltage") > Cc: Loic Poulain <loic.poulain@linaro.org> > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > --- > arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) Don't see any problem with that change, tested with and without cpufreq (db820c). Tested-by: Loic Poulain <loic.poulain@linaro.org>
diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi index af87350b5547..4692b7ad16b7 100644 --- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi +++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi @@ -658,8 +658,8 @@ s10 { s11 { qcom,saw-leader; regulator-always-on; - regulator-min-microvolt = <1230000>; - regulator-max-microvolt = <1230000>; + regulator-min-microvolt = <980000>; + regulator-max-microvolt = <980000>; }; };
Some msm8996 based devices are unstable when run with VDD_APC of 1.23V, which is listed as the maximum voltage in "Turbo" mode. Given that the CPU cluster is not run in "Turbo" mode, reduce this to 0.98V - the maximum voltage for nominal operation. Fixes: 7a2a2231ef22 ("arm64: dts: apq8096-db820c: Fix VDD core voltage") Cc: Loic Poulain <loic.poulain@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> --- arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)