819-uart-0012-tty-serial-lpuart-add-LS1028A-support.patch

From 932dac0380bbf7276d4111c35674679bc9ad6384 Mon Sep 17 00:00:00 2001
From: Vabhav Sharma <vabhav.sharma@nxp.com>
Date: Thu, 31 Oct 2019 19:20:47 +0530
Subject: [PATCH] tty: serial: lpuart: add LS1028A support

NXP LS1028A lpuart is the same IP as LS1021A, but it is
little endian for register accessing instead of big endian
on LS1021A.

So add LS1028A matching data to distiguish the chips.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Vabhav Sharma <vabhav.sharma@nxp.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
---
 drivers/tty/serial/fsl_lpuart.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -3,6 +3,7 @@
  *  Freescale lpuart serial port driver
  *
  *  Copyright 2012-2014 Freescale Semiconductor, Inc.
+ *  Copyright 2019 NXP
  */
 
 #if defined(CONFIG_SERIAL_FSL_LPUART_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
@@ -260,6 +261,7 @@ static DEFINE_IDA(fsl_lpuart_ida);
 enum lpuart_type {
 	VF610_LPUART,
 	LS1021A_LPUART,
+	LS1028A_LPUART,
 	IMX7ULP_LPUART,
 	IMX8QXP_LPUART,
 };
@@ -311,13 +313,20 @@ static const struct lpuart_soc_data vf_d
 	.rx_dma_cyclic = true,
 };
 
-static const struct lpuart_soc_data ls_data = {
+static const struct lpuart_soc_data ls1021a_data = {
 	.devtype = LS1021A_LPUART,
 	.iotype = UPIO_MEM32BE,
 	.rx_watermark = 0,
 	.rx_dma_cyclic = true,
 };
 
+static const struct lpuart_soc_data ls1028a_data = {
+	.devtype = LS1028A_LPUART,
+	.iotype = UPIO_MEM32,
+	.rx_watermark = 0,
+	.rx_dma_cyclic = true,
+};
+
 static struct lpuart_soc_data imx7ulp_data = {
 	.devtype = IMX7ULP_LPUART,
 	.iotype = UPIO_MEM32,
@@ -336,7 +345,8 @@ static struct lpuart_soc_data imx8qxp_da
 
 static const struct of_device_id lpuart_dt_ids[] = {
 	{ .compatible = "fsl,vf610-lpuart",	.data = &vf_data, },
-	{ .compatible = "fsl,ls1021a-lpuart",	.data = &ls_data, },
+	{ .compatible = "fsl,ls1021a-lpuart",	.data = &ls1021a_data, },
+	{ .compatible = "fsl,ls1028a-lpuart",	.data = &ls1028a_data, },
 	{ .compatible = "fsl,imx7ulp-lpuart",	.data = &imx7ulp_data, },
 	{ .compatible = "fsl,imx8qxp-lpuart",	.data = &imx8qxp_data, },
 	{ /* sentinel */ }