openwrt/target/linux/mediatek/patches-5.15/410-bt-mtk-serial-fix.patch
Rui Salvaterra f1cd144482 kernel: bump 5.15 to 5.15.49
Deleted (upstreamed):
generic/backport-5.15/702-v5.19-34-net-ethernet-mtk_eth_soc-fix-misuse-of-mem-alloc-int.patch [1]

[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.49&id=fcba12a4308143f1f1dcb0face8b3ffb51edcc5c

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
2022-06-27 00:57:16 +02:00

34 lines
1.1 KiB
Diff

--- a/drivers/tty/serial/8250/8250.h
+++ b/drivers/tty/serial/8250/8250.h
@@ -83,6 +83,7 @@ struct serial8250_config {
#define UART_CAP_MINI BIT(17) /* Mini UART on BCM283X family lacks:
* STOP PARITY EPAR SPAR WLEN5 WLEN6
*/
+#define UART_CAP_NMOD (1 << 18) /* UART doesn't do termios */
#define UART_BUG_QUOT BIT(0) /* UART has buggy quot LSB */
#define UART_BUG_TXEN BIT(1) /* UART has buggy TX IIR status */
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -288,7 +288,7 @@ static const struct serial8250_config ua
.tx_loadsz = 16,
.fcr = UART_FCR_ENABLE_FIFO |
UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,
- .flags = UART_CAP_FIFO,
+ .flags = UART_CAP_FIFO | UART_CAP_NMOD,
},
[PORT_NPCM] = {
.name = "Nuvoton 16550",
@@ -2766,6 +2766,11 @@ serial8250_do_set_termios(struct uart_po
unsigned long flags;
unsigned int baud, quot, frac = 0;
+ if (up->capabilities & UART_CAP_NMOD) {
+ termios->c_cflag = 0;
+ return;
+ }
+
if (up->capabilities & UART_CAP_MINI) {
termios->c_cflag &= ~(CSTOPB | PARENB | PARODD | CMSPAR);
if ((termios->c_cflag & CSIZE) == CS5 ||