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cddd459140
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release which was tagged LSDK-20.04-V5.4. https://source.codeaurora.org/external/qoriq/qoriq-components/linux/ For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in LSDK, port the dts patches from 4.14. The patches are sorted into the following categories: 301-arch-xxxx 302-dts-xxxx 303-core-xxxx 701-net-xxxx 801-audio-xxxx 802-can-xxxx 803-clock-xxxx 804-crypto-xxxx 805-display-xxxx 806-dma-xxxx 807-gpio-xxxx 808-i2c-xxxx 809-jailhouse-xxxx 810-keys-xxxx 811-kvm-xxxx 812-pcie-xxxx 813-pm-xxxx 814-qe-xxxx 815-sata-xxxx 816-sdhc-xxxx 817-spi-xxxx 818-thermal-xxxx 819-uart-xxxx 820-usb-xxxx 821-vfio-xxxx Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
30 lines
838 B
Diff
30 lines
838 B
Diff
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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@@ -1464,6 +1464,14 @@ static void lpuart32_set_mctrl(struct ua
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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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