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b=H4sIACHpXmYC/x3MMQqAMAxA0auUzAZirCJeRRxqTTWLSgsilN7d4 viG/zMkiSoJJpMhyqNJr7OibQz4w527oG7VwMSWBrIY15ZR2fOOt14YBur64EYhZqjRHSXo+w/ npZQP8Ui/sGAAAAA= To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Caleb Connolly , Alexey Klimov , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Dmitry Baryshkov , stable@vger.kernel.org X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=976; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=TBP3XAt8f/B0YWeLvutIYFpDXuJxcaTXCpNfxe+lG9k=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBmXukisXO3vbm0pfCpPJ61Mg2y6uzFMnI2pUjBW IJiswVMWIGJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZl7pIgAKCRCLPIo+Aiko 1UUECACQvw5fav6UuNnDUapKvkg1aEhaNCBbXyQePxk1nupXOy5RMtFlrDmbUEbCgp7zvdkQF4v t2x6wDaNlCW33c2uOlITq3ue2aAsGKmW55XICrvlrTvF9CdKGjFJ88zYyzRpDLNdi01dQwF/OG/ Lx0fngDJF8kRR/6IjdGbV99MqxhQqw1id9RWYGFYCgk+c2RgvROMd1qVH18HkqgZR98pzG8Ie2P aj/hZEOVG3Jjrk8tZ2KCWu2qZjnq153P1Y4vwI3gXx0yYIueavaOQWK70kLH8jSzNcSKXtD2mHr 7cOyUpbUtVe5xx9h7++cSuP/dQnYXU8RxwMuknAM6FjuOaHW X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A On the Qualcomm RB1 and RB2 platforms 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. Signed-off-by: Dmitry Baryshkov --- Dmitry Baryshkov (2): arm64: dts: qcom: qrb2210-rb1: switch I2C2 to i2c-gpio arm64: dts: qcom: qrb4210-rb2: switch I2C2 to i2c-gpio arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 13 ++++++++++++- arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 13 ++++++++++++- 2 files changed, 24 insertions(+), 2 deletions(-) --- base-commit: 0e1980c40b6edfa68b6acf926bab22448a6e40c9 change-id: 20240604-rb12-i2c2g-pio-f6035fa8e022 Best regards,