667f6c7f49
Manually rebased patches: bcm27xx/patches-5.4/950-0135-spi-spi-bcm2835-Disable-forced-software-CS.patch generic-backport/744-v5.5-net-sfp-soft-status-and-control-support.patch layerscape/patches-5.4/819-uart-0005-tty-serial-fsl_lpuart-enable-dma-mode-for-imx8qxp.patch mvebu/patches-5.4/521-arm64-dts-marvell-espressobin-Add-ethernet-switch-al.patch Removed: layerscape/patches-5.4/819-uart-0012-tty-serial-lpuart-add-LS1028A-support.patch All modifications made by update_kernel.sh Build system: x86_64 Build-tested: ipq806x/R7800, ath79/generic, bcm27xx/bcm2711, lantiq/Easybox 904 xDSL, x86_64 Run-tested: ipq806x/R7800, lantiq/Easybox 904 xDSL, x86_64 No dmesg regressions, everything functional Signed-off-by: John Audia <graysky@archlinux.us> Co-developed-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
30 lines
838 B
Diff
30 lines
838 B
Diff
From 4dc6f2b9d454099445b8bc3a4a6328761335ce4d Mon Sep 17 00:00:00 2001
|
|
From: Fugang Duan <fugang.duan@nxp.com>
|
|
Date: Wed, 11 Sep 2019 16:23:25 +0800
|
|
Subject: [PATCH] tty: serial: fsl_lpuart: enable loopback mode
|
|
|
|
Enable lpuart32 loopback mode.
|
|
|
|
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
|
|
---
|
|
drivers/tty/serial/fsl_lpuart.c | 8 ++++++++
|
|
1 file changed, 8 insertions(+)
|
|
|
|
--- a/drivers/tty/serial/fsl_lpuart.c
|
|
+++ b/drivers/tty/serial/fsl_lpuart.c
|
|
@@ -1477,6 +1477,14 @@ static void lpuart32_set_mctrl(struct ua
|
|
temp |= UARTMODIR_TXCTSE;
|
|
|
|
lpuart32_write(port, temp, UARTMODIR);
|
|
+
|
|
+ temp = lpuart32_read(port, UARTCTRL);
|
|
+ if (mctrl & TIOCM_LOOP)
|
|
+ temp |= UARTCTRL_LOOPS;
|
|
+ else
|
|
+ temp &= ~UARTCTRL_LOOPS;
|
|
+
|
|
+ lpuart32_write(port, temp, UARTCTRL);
|
|
}
|
|
|
|
static void lpuart_break_ctl(struct uart_port *port, int break_state)
|