This is a note to let you know that I've just added the patch titled i2c: mxs: suppress probe-deferral error message to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: i2c-mxs-suppress-probe-deferral-error-message.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit af3b057c32b98cea4de3a5d34ec5f3c8677221df Author: Stefan Wahren <stefan.wahren@xxxxxxxx> Date: Sat Jan 7 13:32:29 2023 +0100 i2c: mxs: suppress probe-deferral error message [ Upstream commit 78a4471fa1a76a8bef4919105de67660a89a1e9b ] During boot of I2SE Duckbill the kernel log contains a confusing error: Failed to request dma This is caused by i2c-mxs tries to request a not yet available DMA channel (-EPROBE_DEFER). So suppress this message by using dev_err_probe(). Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx> Reviewed-by: Fabio Estevam <festevam@xxxxxxxxx> Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c index c4b08a924461..abad24808e85 100644 --- a/drivers/i2c/busses/i2c-mxs.c +++ b/drivers/i2c/busses/i2c-mxs.c @@ -842,8 +842,8 @@ static int mxs_i2c_probe(struct platform_device *pdev) /* Setup the DMA */ i2c->dmach = dma_request_chan(dev, "rx-tx"); if (IS_ERR(i2c->dmach)) { - dev_err(dev, "Failed to request dma\n"); - return PTR_ERR(i2c->dmach); + return dev_err_probe(dev, PTR_ERR(i2c->dmach), + "Failed to request dma\n"); } platform_set_drvdata(pdev, i2c);