diff options
| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-07-20 14:08:37 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-09-01 00:32:08 +0200 |
| commit | 8584cbf424d182dca046600c5453f7178fa5b1ec (patch) | |
| tree | 63729ad35d51ebf5335c64600e673c1a1a714918 | |
| parent | b174c855b9bc54be5f0a19adbd8f159d5f6593c1 (diff) | |
apalis_t30/tk1, colibri_t20/t30: fix i2c bus frequencies
Use a slower speed of 10 kbit/s for DDC to improve reliability.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Stefan Agner <stefan.agner@toradex.com>
| -rw-r--r-- | arch/arm/dts/tegra124-apalis.dts | 6 | ||||
| -rw-r--r-- | arch/arm/dts/tegra20-colibri.dts | 4 | ||||
| -rw-r--r-- | arch/arm/dts/tegra30-apalis.dts | 6 | ||||
| -rw-r--r-- | arch/arm/dts/tegra30-colibri.dts | 4 |
4 files changed, 10 insertions, 10 deletions
diff --git a/arch/arm/dts/tegra124-apalis.dts b/arch/arm/dts/tegra124-apalis.dts index f339e9bf38..2fc0384d14 100644 --- a/arch/arm/dts/tegra124-apalis.dts +++ b/arch/arm/dts/tegra124-apalis.dts @@ -1616,7 +1616,7 @@ */ i2c@7000c000 { status = "okay"; - clock-frequency = <100000>; + clock-frequency = <400000>; pcie-switch@58 { compatible = "plx,pex8605"; @@ -1635,7 +1635,7 @@ */ hdmi_ddc: i2c@7000c400 { status = "okay"; - clock-frequency = <100000>; + clock-frequency = <10000>; }; /* @@ -1644,7 +1644,7 @@ */ i2c@7000c500 { status = "okay"; - clock-frequency = <100000>; + clock-frequency = <400000>; }; /* I2C4 (DDC): unused */ diff --git a/arch/arm/dts/tegra20-colibri.dts b/arch/arm/dts/tegra20-colibri.dts index 3c10dd6630..6ffb148b1b 100644 --- a/arch/arm/dts/tegra20-colibri.dts +++ b/arch/arm/dts/tegra20-colibri.dts @@ -64,7 +64,7 @@ */ i2c@7000c000 { status = "okay"; - clock-frequency = <100000>; + clock-frequency = <400000>; }; /* GEN2_I2C: unused */ @@ -72,7 +72,7 @@ /* DDC_CLOCK/DATA on X3 pin 15/16 (e.g. display EDID) */ i2c@7000c400 { status = "okay"; - clock-frequency = <100000>; + clock-frequency = <10000>; }; /* diff --git a/arch/arm/dts/tegra30-apalis.dts b/arch/arm/dts/tegra30-apalis.dts index b3eff00bd8..5b02b26038 100644 --- a/arch/arm/dts/tegra30-apalis.dts +++ b/arch/arm/dts/tegra30-apalis.dts @@ -92,7 +92,7 @@ */ i2c@7000c000 { status = "okay"; - clock-frequency = <100000>; + clock-frequency = <400000>; }; /* GEN2_I2C: unused */ @@ -103,13 +103,13 @@ */ i2c@7000c500 { status = "okay"; - clock-frequency = <100000>; + clock-frequency = <400000>; }; /* DDC: I2C2_SDA/SCL on MXM3 pin 205/207 (e.g. display EDID) */ i2c@7000c700 { status = "okay"; - clock-frequency = <100000>; + clock-frequency = <10000>; }; /* diff --git a/arch/arm/dts/tegra30-colibri.dts b/arch/arm/dts/tegra30-colibri.dts index 35ce865dca..ad7f31c9bf 100644 --- a/arch/arm/dts/tegra30-colibri.dts +++ b/arch/arm/dts/tegra30-colibri.dts @@ -60,7 +60,7 @@ */ i2c@7000c000 { status = "okay"; - clock-frequency = <100000>; + clock-frequency = <400000>; }; /* GEN2_I2C: unused */ @@ -70,7 +70,7 @@ /* DDC_CLOCK/DATA on X3 pin 15/16 (e.g. display EDID) */ i2c@7000c700 { status = "okay"; - clock-frequency = <100000>; + clock-frequency = <10000>; }; /* |