i2c: stm32: fix error message on upon dma_request_chan & defer handling

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DMA usage is optional for the I2C driver. check for the -ENODEV
error in order to avoid displaying an error when no DMA
has been requested.
Cleaning up the error messages during probe, remove the additional
-EPROBE_DEFER within probe function since additional error message
doesn't give much more information than what is already reported
within the stm32_i2c_dma_request function.

Signed-off-by: Alain Volmat <alain.volmat@st.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

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Alain Volmat 2020-09-14 12:40:33 +02:00 • committed by Wolfram Sang

parent 8ce98dd21f

commit 27c90870e7

2 changed files with 8 additions and 11 deletions

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6

drivers/i2c/busses/i2c-stm32.c

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13

drivers/i2c/busses/i2c-stm32f7.c

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