diff options
| author | Johan Hovold <johan+linaro@kernel.org> | 2023-03-07 19:44:05 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-09 19:27:53 +0300 |
| commit | b6a7bac184472b5b79286a71a61c2f16ea4e86ad (patch) | |
| tree | 67a0bea6fb0c2b0bf9a863c128bb325bdfc73c8b /drivers/tty | |
| parent | 97820780b723197d1b472f2bd39fd8593b5d4edc (diff) | |
| download | linux-b6a7bac184472b5b79286a71a61c2f16ea4e86ad.tar.xz | |
serial: qcom-geni: drop bogus uart_write_wakeup()
Drop the bogus uart_write_wakeup() from when setting up a new DMA
transfer, which does not free up any more space in the ring buffer.
Any pending writers will be woken up when the transfer completes.
Cc: stable <stable@kernel.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Tested-by: Andrew Halaney <ahalaney@redhat.com> # sa8540p-ride
Link: https://lore.kernel.org/r/20230307164405.14218-5-johan+linaro@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/qcom_geni_serial.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c index 9871225b2f9b..28fbc927a546 100644 --- a/drivers/tty/serial/qcom_geni_serial.c +++ b/drivers/tty/serial/qcom_geni_serial.c @@ -634,10 +634,6 @@ static void qcom_geni_serial_start_tx_dma(struct uart_port *uport) if (uart_circ_empty(xmit)) return; - xmit_size = uart_circ_chars_pending(xmit); - if (xmit_size < WAKEUP_CHARS) - uart_write_wakeup(uport); - xmit_size = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE); qcom_geni_serial_setup_tx(uport, xmit_size); |