]> git.hungrycats.org Git - linux/commit
arm64: dts: qcom: qrb2210-rb1: switch I2C2 to i2c-gpio
authorDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Wed, 5 Jun 2024 08:55:56 +0000 (11:55 +0300)
committerBjorn Andersson <andersson@kernel.org>
Thu, 6 Jun 2024 02:39:32 +0000 (21:39 -0500)
commitb7b545ccc08873e107aa24c461b1fdb123dd3761
tree6726258e50a6270566d7d7229465868782cf88b7
parent3c61c786d2f058636a92c5b648873fdd45444085
arm64: dts: qcom: qrb2210-rb1: switch I2C2 to i2c-gpio

On the Qualcomm RB1 platform the I2C bus connected to the LT9611UXC
bridge under some circumstances can go into a state when all transfers
timeout. This causes both issues with fetching of EDID and with
updating of the bridge's firmware. While we are debugging the issue,
switch corresponding I2C bus to use i2c-gpio driver. While using
i2c-gpio no communication issues are observed.

This patch is asusmed to be a temporary fix, so it is implemented in a
non-intrusive manner to simply reverting it later.

Fixes: 616eda24edd4 ("arm64: dts: qcom: qrb2210-rb1: Set up HDMI")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20240605-rb12-i2c2g-pio-v2-1-946f5d6b6948@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
arch/arm64/boot/dts/qcom/qrb2210-rb1.dts