| Message ID | 20201210212534.216197-3-krzk@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [01/18] ARM: dts: exynos: correct fuel gauge interrupt trigger level on GT-I9100 | expand |
On Thu, Dec 10, 2020 at 10:25:19PM +0100, 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: e8614292cd41 ("ARM: dts: Add Maxim 77693 fuel gauge node for exynos4412-trats2") > Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> > --- > arch/arm/boot/dts/exynos4412-midas.dtsi | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Hi Marek, I remember you were reporting that on Trats2 you see fuel gauge interrupt storm with this patchset. Is it correct? Shall I wait with applying this? Best regards, Krzysztof > diff --git a/arch/arm/boot/dts/exynos4412-midas.dtsi b/arch/arm/boot/dts/exynos4412-midas.dtsi > index 111c32bae02c..b8b75dc81aa1 100644 > --- a/arch/arm/boot/dts/exynos4412-midas.dtsi > +++ b/arch/arm/boot/dts/exynos4412-midas.dtsi > @@ -221,7 +221,7 @@ i2c_max77693_fuel: i2c-gpio-3 { > fuel-gauge@36 { > compatible = "maxim,max17047"; > interrupt-parent = <&gpx2>; > - interrupts = <3 IRQ_TYPE_EDGE_FALLING>; > + interrupts = <3 IRQ_TYPE_LEVEL_LOW>; > pinctrl-names = "default"; > pinctrl-0 = <&max77693_fuel_irq>; > reg = <0x36>; > -- > 2.25.1 >
diff --git a/arch/arm/boot/dts/exynos4412-midas.dtsi b/arch/arm/boot/dts/exynos4412-midas.dtsi index 111c32bae02c..b8b75dc81aa1 100644 --- a/arch/arm/boot/dts/exynos4412-midas.dtsi +++ b/arch/arm/boot/dts/exynos4412-midas.dtsi @@ -221,7 +221,7 @@ i2c_max77693_fuel: i2c-gpio-3 { fuel-gauge@36 { compatible = "maxim,max17047"; interrupt-parent = <&gpx2>; - interrupts = <3 IRQ_TYPE_EDGE_FALLING>; + interrupts = <3 IRQ_TYPE_LEVEL_LOW>; pinctrl-names = "default"; pinctrl-0 = <&max77693_fuel_irq>; reg = <0x36>;
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: e8614292cd41 ("ARM: dts: Add Maxim 77693 fuel gauge node for exynos4412-trats2") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> --- arch/arm/boot/dts/exynos4412-midas.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)