Re: [RESEND v6,3/3] arm64: dts: fsl-ls208xa-rdb: fix an errata E-00013

From: Peter Rosin
Date: Fri Jan 03 2020 - 09:09:47 EST

On 2019-12-25 11:36, Biwen Li wrote:
> Specify a channel zero in idle state to
> avoid enterring tri-stated state for PCA9547.
> 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 <>

For this patch, suggests a few more recipients that
you need to seek reviews/acks from.