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authorMarcel Ziswiler <marcel.ziswiler@toradex.com>2018-02-10 04:36:36 +0300
committerThierry Reding <treding@nvidia.com>2018-03-08 18:08:20 +0300
commit1c3389e6cb99d36196df322dd40aa73cd06f983b (patch)
tree1574348875f3e21899baa011efeb17fce79c423e /arch/arm/boot/dts/tegra124-apalis.dtsi
parent1014e895f808f144d91e06815175648b4ae14c0a (diff)
downloadlinux-1c3389e6cb99d36196df322dd40aa73cd06f983b.tar.xz
ARM: tegra: Fix I2C bus frequencies on Apalis/Colibri
Use a faster speed of 400 kbit/s for regular I2C busses. Use a slower speed of 10 kbit/s for DDC/EDID to improve reliability. Use a slower speed of 100 kbit/s for power I2C to be within specs of the LM95245 temperature sensor. While at it further annotate I2C pin usage. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'arch/arm/boot/dts/tegra124-apalis.dtsi')
-rw-r--r--arch/arm/boot/dts/tegra124-apalis.dtsi2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/tegra124-apalis.dtsi b/arch/arm/boot/dts/tegra124-apalis.dtsi
index 5d9b18ef5af6..7aef8928e115 100644
--- a/arch/arm/boot/dts/tegra124-apalis.dtsi
+++ b/arch/arm/boot/dts/tegra124-apalis.dtsi
@@ -1579,7 +1579,7 @@
};
hdmi_ddc: i2c@7000c400 {
- clock-frequency = <100000>;
+ clock-frequency = <10000>;
};
/* PWR_I2C: power I2C to audio codec, PMIC and temperature sensor */