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| author | Alain Volmat <alain.volmat@foss.st.com> | 2022-01-19 10:32:45 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-01-19 17:47:43 +0100 |
| commit | 9df15d842a0f77f2b8ee29386f6d714e4220df57 (patch) | |
| tree | c29279ce70c41d771a5d0a160d331b6b2ddb2d45 /Documentation/devicetree | |
| parent | spi: stm32: remove inexistant variables in struct stm32_spi_cfg comment (diff) | |
| download | linux-9df15d842a0f77f2b8ee29386f6d714e4220df57.tar.xz linux-9df15d842a0f77f2b8ee29386f6d714e4220df57.zip | |
spi: stm32: make SPI_MASTER_MUST_TX flags only specific to STM32F4
Commit 61367d0b8f5e ("spi: stm32: Add 'SPI_SIMPLEX_RX', 'SPI_3WIRE_RX' support for stm32f4")
allowed to properly communicate with the st-gyro-spi even when
there is no tx_buf provided by setting the flag SPI_MASTER_MUST_TX and
thus forcing a dummy TX buffer to work in Full Duplex.
This behavior should kept only for the STM32F4 and not for other
compatible since the STM32H7 do support SIMPLEX_RX and SIMPLEX_TX.
Add the flags variable within the struct stm32_spi_cfg so that flags
used at master registration time are compatible specific.
Fixes: 61367d0b8f5e ("spi: stm32: Add 'SPI_SIMPLEX_RX', 'SPI_3WIRE_RX' support for stm32f4")
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Link: https://lore.kernel.org/r/20220119093245.624878-3-alain.volmat@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree')
0 files changed, 0 insertions, 0 deletions