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| H A D | fsl-ls208xa-rdb.dtsi | diff 822f91d512abfe70349fce7b79cbdee8d0d016e9 Wed Sep 14 23:15:37 CEST 2022 Biwen Li <biwen.li@nxp.com> arm64: dts: ls208xa-rdb: fix errata E-00013
Specify a channel zero in idle state to avoid enterring tri-stated state
for PCA9547.
Some information about E-00013:
- Description: I2C1 and I2C3 buses are missing pull-up.
- Impact: When the PCA954x device is tri-stated, the I2C bus will float.
This makes the I2C bus and its associated downstream devices
inaccessible.
- Hardware fix: Populate resistors R189 and R190 for I2C1 and resistors
R228 and R229 for I2C3.
- Software fix: Remove the tri-state option from the PCA954x
driver(PCA954x always on enable status, specify a channel zero in dts to
fix the errata E-00013).
Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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