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ARM: dts: exynos: Fix GPIO polarity for thr GalaxyS3 CM36651 sensor's bus

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GPIO lines for the CM36651 sensor I2C bus use the normal not the inverted
polarity. This bug has been there since adding the CM36651 sensor by
commit 85cb4e0bd229 ("ARM: dts: add cm36651 light/proximity sensor node
for exynos4412-trats2"), but went unnoticed because the "i2c-gpio"
driver ignored the GPIO polarity specified in the device-tree.

The recent conversion of "i2c-gpio" driver to the new, descriptor based
GPIO API, automatically made it the DT-specified polarity aware, what
broke the CM36651 sensor operation.

Fixes: 85cb4e0bd229 ("ARM: dts: add cm36651 light/proximity sensor node for exynos4412-trats2")
CC: stable@vger.kernel.org # 4.16+
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This commit is contained in:
Marek Szyprowski 2020-03-26 15:20:37 +01:00 committed by Krzysztof Kozlowski
parent a19f6efc01
commit 8807d356bf
1 changed files with 1 additions and 1 deletions
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2
arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi
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@ -68,7 +68,7 @@
i2c_cm36651: i2c-gpio-2 {
compatible = "i2c-gpio";
gpios = <&gpf0 0 GPIO_ACTIVE_LOW>, <&gpf0 1 GPIO_ACTIVE_LOW>;
gpios = <&gpf0 0 GPIO_ACTIVE_HIGH>, <&gpf0 1 GPIO_ACTIVE_HIGH>;
i2c-gpio,delay-us = <2>;
#address-cells = <1>;
#size-cells = <0>;