diff options
| author | Deepak Kumar <deepak.kumar01@st.com> | 2025-12-18 11:48:28 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-12-18 10:59:33 +0000 |
| commit | 1ac3be217c01d5df55ec5052f81e4f1708f46552 (patch) | |
| tree | 744e0c63ba6538edab81002ce0d09651031ee0dc /include/linux/i2c/git@git.tavy.me:linux.git | |
| parent | c266d19b7d4e5ed993ed9fca25ab9d11789c41ee (diff) | |
spi: stm32: fix Overrun issue at < 8bpw
When SPI communication is suspended by hardware automatically, it could
happen that few bits of next frame are already clocked out due to
internal synchronization delay.
To achieve a safe suspension, we need to ensure that each word must be
at least 8 SPI clock cycles long. That's why, if bpw is less than 8
bits, we need to use midi to reach 8 SPI clock cycles at least.
This will ensure that each word achieve safe suspension and prevent
overrun condition.
Signed-off-by: Deepak Kumar <deepak.kumar01@st.com>
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Link: https://patch.msgid.link/20251218-stm32-spi-enhancements-v2-2-3b69901ca9fe@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/i2c/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions