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ARM: tegra: Fix I2C bus frequencies on Apalis/Colibri

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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>
This commit is contained in:
Marcel Ziswiler
2018-02-10 02:36:36 +01:00
committed by Thierry Reding
parent 1014e895f8
commit 1c3389e6cb
7 changed files with 18 additions and 13 deletions
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2
arch/arm/boot/dts/tegra30-apalis-eval.dts
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@@ -79,7 +79,7 @@
*/
i2c@7000c000 {
status = "okay";
clock-frequency = <100000>;
clock-frequency = <400000>;
pcie-switch@58 {
compatible = "plx,pex8605";