diff options
| author |   Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2015-12-11 18:13:12 +0000 |
|---|---|---|
| committer |   Andy Gross <andy.gross@linaro.org> | 2015-12-16 23:01:43 -0600 |
| commit | c240f29e75e686baa5b5ddc801e70022dd6bf358 (patch) | |
| tree | f04f284783b65dc9f9731015bf113427290dd5e5 /arch/arm64/boot | |
| parent | arm64: dts: fix the i2c aliasing to match to schematics. (diff) | |
| download | linux-dev-c240f29e75e686baa5b5ddc801e70022dd6bf358.tar.xz linux-dev-c240f29e75e686baa5b5ddc801e70022dd6bf358.zip | |
arm64: dts: set the default i2c pin drive strength to 16mA
2mA drive strength is not enough when we connect multiple i2c devices
on the bus with different pull up resistors.
This issue was detected when multiple i2c devices connected on the other side
of level shifters on Linaro sensor board. Maxing up to 16mA made i2c much stable.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Diffstat (limited to 'arch/arm64/boot')
| -rw-r--r-- | arch/arm64/boot/dts/qcom/msm8916-pins.dtsi | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi b/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi index d656e892fd52..955c6f174d4c 100644 --- a/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi @@ -277,7 +277,7 @@ }; pinconf { pins = "gpio6", "gpio7"; - drive-strength = <2>; + drive-strength = <16>; bias-disable = <0>; }; }; @@ -301,7 +301,7 @@ }; pinconf { pins = "gpio14", "gpio15"; - drive-strength = <2>; + drive-strength = <16>; bias-disable = <0>; }; }; @@ -325,7 +325,7 @@ }; pinconf { pins = "gpio22", "gpio23"; - drive-strength = <2>; + drive-strength = <16>; bias-disable = <0>; }; }; |