2020-04-10 02:47:05 +00:00
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From 4dc6f2b9d454099445b8bc3a4a6328761335ce4d Mon Sep 17 00:00:00 2001
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From: Fugang Duan <fugang.duan@nxp.com>
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Date: Wed, 11 Sep 2019 16:23:25 +0800
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Subject: [PATCH] tty: serial: fsl_lpuart: enable loopback mode
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Enable lpuart32 loopback mode.
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Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
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---
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drivers/tty/serial/fsl_lpuart.c | 8 ++++++++
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1 file changed, 8 insertions(+)
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--- a/drivers/tty/serial/fsl_lpuart.c
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+++ b/drivers/tty/serial/fsl_lpuart.c
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kernel: bump 5.4 to 5.4.73
Removed upstreamed patches:
generic/pending-5.4
445-mtd-spinand-gigadevice-Only-one-dummy-byte-in-QUA.patch
446-mtd-spinand-gigadevice-Add-QE-Bit.patch
pistachio/patches-5.4
150-pwm-img-Fix-null-pointer-access-in-probe.patch
Manually rebased:
layerscape/patches-5.4
801-audio-0011-Revert-ASoC-fsl_sai-add-of_match-data.patch
801-audio-0039-MLK-16224-6-ASoC-fsl_sai-fix-DSD-suspend-resume.patch
801-audio-0073-MLK-21957-3-ASoC-fsl_sai-add-bitcount-and-timestamp-.patch
820-usb-0009-usb-dwc3-Add-workaround-for-host-mode-VBUS-glitch-wh.patch
All modifications made by update_kernel.sh
Build system: x86_64
Build-tested: ipq806x/R7800, ath79/generic, bcm27xx/bcm2711,
mvebu (mamba, rango), x86_64, ramips/mt7621
Run-tested: ipq806x/R7800, mvebu (mamba, rango), x86_64, ramips (RT-AC57U)
No dmesg regressions, everything functional
Signed-off-by: John Audia <graysky@archlinux.us>
[alter 820-usb-0009-usb-dwc3-Add-workaround-for-host-mode-VBUS-glitch-wh]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-10-31 11:35:12 +00:00
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@@ -1462,6 +1462,14 @@ static void lpuart32_set_mctrl(struct ua
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2020-04-10 02:47:05 +00:00
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temp |= UARTMODIR_TXCTSE;
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lpuart32_write(port, temp, UARTMODIR);
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+
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+ temp = lpuart32_read(port, UARTCTRL);
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+ if (mctrl & TIOCM_LOOP)
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+ temp |= UARTCTRL_LOOPS;
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+ else
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+ temp &= ~UARTCTRL_LOOPS;
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+
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+ lpuart32_write(port, temp, UARTCTRL);
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}
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static void lpuart_break_ctl(struct uart_port *port, int break_state)
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