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serial: qcom-geni: fix UART_RX_PAR_EN bit position

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UART_RX_PAR_EN is incorrectly defined as bit 3, which triggers false
framing errors (S_GP_IRQ_1_EN) and causes received data to be dropped
when parity is enabled and the parity bit is 0.

Define UART_RX_PAR_EN as bit 4 of the SE_UART_RX_TRANS_CFG register, as
specified in the reference manual.

Fixes: c4f528795d ("tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP")
Cc: stable <stable@kernel.org>
Signed-off-by: Prasanna S <prasanna.s@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20260428-serial-bit-correct-v1-1-9131ad5b97d8@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Prasanna S 2026-04-28 09:56:13 +05:30 committed by Greg Kroah-Hartman
parent 92b1ea2245
commit ca2584d841
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/qcom_geni_serial.c
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@ -50,7 +50,7 @@
#define TX_STOP_BIT_LEN_2 2
/* SE_UART_RX_TRANS_CFG */
#define UART_RX_PAR_EN BIT(3)
#define UART_RX_PAR_EN BIT(4)
/* SE_UART_RX_WORD_LEN */
#define RX_WORD_LEN_MASK GENMASK(9, 0)