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| author | Erwan Le Ray <erwan.leray@st.com> | 2019-05-21 17:45:43 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-24 09:58:29 +0200 |
| commit | 6c5962f30bce147b1c83869085f3ddde3b34c9e3 (patch) | |
| tree | 271cb4b5f46d1756134c5fd5a6894b9b35aa5691 /drivers/tty/serial/stm32-usart.h | |
| parent | 4f01d833fdcdd6f9b85d9e5d5d7568eb683626a7 (diff) | |
| download | linux-6c5962f30bce147b1c83869085f3ddde3b34c9e3.tar.gz | |
serial: stm32: fix rx data length when parity enabled
- Fixes a rx data error when data length < 8 bits and parity is enabled.
RDR register MSB is used for parity bit reception.
- Adds a mask to ignore MSB when data is get from RDR.
Fixes: 3489187204eb ("serial: stm32: adding dma support")
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/stm32-usart.h')
| -rw-r--r-- | drivers/tty/serial/stm32-usart.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/serial/stm32-usart.h b/drivers/tty/serial/stm32-usart.h index 8d34802e572e..30d2433e27c3 100644 --- a/drivers/tty/serial/stm32-usart.h +++ b/drivers/tty/serial/stm32-usart.h @@ -254,6 +254,7 @@ struct stm32_port { bool hw_flow_control; bool fifoen; int wakeirq; + int rdr_mask; /* receive data register mask */ }; static struct stm32_port stm32_ports[STM32_MAX_PORTS]; |