Messages in this thread Patch in this message | | | From | Ilpo Järvinen <> | Subject | [PATCH 3/3] serial: tegra-tcu: Use uart_xmit_advance(), fixes icount.tx accounting | Date | Thu, 25 Aug 2022 12:17:07 +0300 |
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Tx'ing does not correctly account Tx'ed characters into icount.tx. Using uart_xmit_advance() fixes the problem.
Fixes: 2d908b38d409 ("serial: Add Tegra Combined UART driver") Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> --- drivers/tty/serial/tegra-tcu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/tegra-tcu.c b/drivers/tty/serial/tegra-tcu.c index 4877c54c613d..889b701ba7c6 100644 --- a/drivers/tty/serial/tegra-tcu.c +++ b/drivers/tty/serial/tegra-tcu.c @@ -101,7 +101,7 @@ static void tegra_tcu_uart_start_tx(struct uart_port *port) break; tegra_tcu_write(tcu, &xmit->buf[xmit->tail], count); - xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1); + uart_xmit_advance(port, count); } uart_write_wakeup(port); -- 2.30.2
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