We have observed that on iWave RZ/G1E boards, randomly HDMI slave device is holding data line after a soft reboot. We applied demuxer patch for i2c1 and using an oscilloscope verified that i2c recovery works on the failure condition. This patch depends on the below patch set https://patchwork.ozlabs.org/cover/857505/ it is tested against renesas-devel-20180122-v4.15-rc9 Biju Das (2): ARM: dts: iwg22d-sodimm-dbhd-ca: use demuxer for I2C1 ARM: dts: iwg22d-sodimm: use demuxer for I2C5 .../arm/boot/dts/r8a7745-iwg22d-sodimm-dbhd-ca.dts | 96 +++++++++++++--------- arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts | 44 +++++++--- 2 files changed, 92 insertions(+), 48 deletions(-) -- 2.7.4
