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8cc7ac54b6
Manually rebased: generic/backport-5.4/370-netfilter-nf_flow_table-fix-offloaded-connection-tim.patch generic/pending-5.4/800-bcma-get-SoC-device-struct-copy-its-DMA-params-to-th.patch mvebu/patches-5.4/021-arm64-dts-marvell-armada-37xx-Move-PCIe-comphy-handl.patch Removed upstreamed: generic/backport-5.4/040-ARM-8918-2-only-build-return_address-if-needed.patch layerscape/patches-5.4/819-uart-0004-MLK-18137-fsl_lpuart-Fix-loopback-mode.patch All others updated automatically. Compile-tested on: lantiq/xrx200, armvirt/64 Runtime-tested on: lantiq/xrx200, armvirt/64 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
--- a/drivers/tty/serial/8250/8250.h
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+++ b/drivers/tty/serial/8250/8250.h
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@@ -82,6 +82,7 @@ struct serial8250_config {
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#define UART_CAP_MINI (1 << 17) /* Mini UART on BCM283X family lacks:
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* STOP PARITY EPAR SPAR WLEN5 WLEN6
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*/
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+#define UART_CAP_NMOD (1 << 18) /* UART doesn't do termios */
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#define UART_BUG_QUOT (1 << 0) /* UART has buggy quot LSB */
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#define UART_BUG_TXEN (1 << 1) /* UART has buggy TX IIR status */
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--- a/drivers/tty/serial/8250/8250_port.c
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+++ b/drivers/tty/serial/8250/8250_port.c
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@@ -291,7 +291,7 @@ static const struct serial8250_config ua
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.tx_loadsz = 16,
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.fcr = UART_FCR_ENABLE_FIFO |
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UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,
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- .flags = UART_CAP_FIFO,
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+ .flags = UART_CAP_FIFO | UART_CAP_NMOD,
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},
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[PORT_NPCM] = {
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.name = "Nuvoton 16550",
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@@ -2598,6 +2598,11 @@ serial8250_do_set_termios(struct uart_po
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unsigned long flags;
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unsigned int baud, quot, frac = 0;
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+ if (up->capabilities & UART_CAP_NMOD) {
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+ termios->c_cflag = 0;
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+ return;
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+ }
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+
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if (up->capabilities & UART_CAP_MINI) {
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termios->c_cflag &= ~(CSTOPB | PARENB | PARODD | CMSPAR);
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if ((termios->c_cflag & CSIZE) == CS5 ||
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