diff options
| author | Alan Tull <atull@kernel.org> | 2018-08-08 10:42:41 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-20 18:45:38 +0100 |
| commit | d4e5c8aeb19823ab4ea9725a9b093f05cdfb0825 (patch) | |
| tree | aedcf170ae0ead210c2ad540266a9fd6d66e0f9c | |
| parent | b0bac46b52a9bcd7687271d9b842aa6abe55c8e6 (diff) | |
arm64: dts: stratix10: i2c clock running out of spec
[ Upstream commit c8da1d15b8a4957f105ad77bb1404d72e304566f ]
DesignWare I2C controller was observed running at 105.93kHz rather
than the specified 100kHz. Adjust device tree settings to bring it
within spec (a slightly conservative 98 MHz).
Signed-off-by: Alan Tull <atull@kernel.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts index 7c661753bfaf..faa017d4cd56 100644 --- a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts @@ -124,6 +124,8 @@ &i2c1 { status = "okay"; clock-frequency = <100000>; + i2c-sda-falling-time-ns = <890>; /* hcnt */ + i2c-sdl-falling-time-ns = <890>; /* lcnt */ adc@14 { compatible = "lltc,ltc2497"; |