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| author |   Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-05-19 11:18:07 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-19 18:32:40 +0200 |
| commit | 1deeda8d2877c18bc2b9eeee10dd6d2628852848 (patch) | |
| tree | 470b7755127ee0151c42a870f449e44b017a7884 /drivers/char | |
| parent | serial: st-asc: Sanitize CSIZE and correct PARENB for CS7 (diff) | |
| download | linux-dev-1deeda8d2877c18bc2b9eeee10dd6d2628852848.tar.xz linux-dev-1deeda8d2877c18bc2b9eeee10dd6d2628852848.zip | |
serial: stm32-usart: Correct CSIZE, bits, and parity
Add CSIZE sanitization for unsupported CSIZE configurations. In
addition, if parity is asked for but CSx was unsupported, the sensible
result is CS8+parity which requires setting USART_CR1_M0 like with 9
bits.
Incorrect CSIZE results in miscalculation of the frame bits in
tty_get_char_size() or in its predecessor where the roughly the same
code is directly within uart_update_timeout().
Fixes: c8a9d043947b (serial: stm32: fix word length configuration)
Cc: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220519081808.3776-9-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char')
0 files changed, 0 insertions, 0 deletions