| Message ID | 20201210212534.216197-12-krzk@kernel.org |
|---|---|
| State | New |
| Headers | show |
| Series | None | expand |
On 12/10/20 11:25 PM, Krzysztof Kozlowski wrote: > The Maxim fuel gauge datasheets describe the interrupt line as active > low with a requirement of acknowledge from the CPU. The falling edge > interrupt will mostly work but it's not correct. > > Fixes: da8d46992e67 ("ARM: dts: qcom: msm8974-klte: Add fuel gauge") > Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> > --- > arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts > index 97352de91314..64a3fdb79539 100644 > --- a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts > +++ b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts > @@ -691,7 +691,7 @@ fuelgauge@36 { > maxim,rcomp = /bits/ 8 <0x56>; > > interrupt-parent = <&pma8084_gpios>; > - interrupts = <21 IRQ_TYPE_EDGE_FALLING>; > + interrupts = <21 IRQ_TYPE_LEVEL_LOW>; > > pinctrl-names = "default"; > pinctrl-0 = <&fuelgauge_pin>; After testing this patch + the rfc modifying 17040 driver I can confirm it works on the klte. Also, according to the max17048 datasheet, the ALRT pin is active low, so everything is in order. Acked-By: Iskren Chernev <iskren.chernev@gmail.com> Tested-By: Iskren Chernev <iskren.chernev@gmail.com>
diff --git a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts index 97352de91314..64a3fdb79539 100644 --- a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts +++ b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts @@ -691,7 +691,7 @@ fuelgauge@36 { maxim,rcomp = /bits/ 8 <0x56>; interrupt-parent = <&pma8084_gpios>; - interrupts = <21 IRQ_TYPE_EDGE_FALLING>; + interrupts = <21 IRQ_TYPE_LEVEL_LOW>; pinctrl-names = "default"; pinctrl-0 = <&fuelgauge_pin>;
The Maxim fuel gauge datasheets describe the interrupt line as active low with a requirement of acknowledge from the CPU. The falling edge interrupt will mostly work but it's not correct. Fixes: da8d46992e67 ("ARM: dts: qcom: msm8974-klte: Add fuel gauge") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> --- arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)