Hi, According to V1's feedback, V2 has been modified. For summary of the changes, please refer to the header of each patch file. Added some dt-bindings and dts patches. At the same time, a patch has been added to fix the problem that data larger than 256 bytes cannot be sent in one frame in PIO mode. Clark Wang (14): i2c: imx-lpi2c: add ipg clk for lpi2c driver ARM: dts: imx7ulp: add the missing lpi2c ipg clock ARM: dts: imx7ulp: add the missing lpi2c nodes ARM64: dts: imx8: add the missing lpi2c ipg clock ARM64: dts: imx8: change i2c irq number to non-combined i2c: imx-lpi2c: increase PM timeout to avoid operate clk frequently i2c: imx-lpi2c: add bus recovery feature dt-bindings: i2c: imx-lpi2c: Add bus recovery example i2c: imx-lpi2c: fix i2c timing issue i2c: imx-lpi2c: fix type char overflow issue when calculating the clock cycle i2c: imx-lpi2c: add edma mode support dt-bindings: i2c: imx-lpi2c: Add dma configuration example ARM: dts: imx7ulp: add dma configurations for lpi2c ARM: dts: imx7ulp: add the missing status property of lpi2c5 i2c: imx-lpi2c: fix pio mode cannot send 256+ bytes in one frame Fugang Duan (1): i2c: imx-lpi2c: manage irq resource request/release in runtime pm Gao Pan (2): i2c: imx-lpi2c: directly retrun ISR when detect a NACK i2c: imx-lpi2c: add debug message when i2c peripheral clk doesn't work .../bindings/i2c/i2c-imx-lpi2c.yaml | 26 + arch/arm/boot/dts/imx7ulp.dtsi | 50 +- .../arm64/boot/dts/freescale/imx8-ss-dma.dtsi | 32 +- drivers/i2c/busses/i2c-imx-lpi2c.c | 506 ++++++++++++++++-- 4 files changed, 548 insertions(+), 66 deletions(-) -- 2.25.1