From: Kyungwoo Kang <kwoo.kang@samsung.com>
Date: Mon, 23 Apr 2018 04:44:52 +0000 (+0900)
Subject: [COMMON] serial: samsung: Add sfr dump function
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4d69a3f3d49703f9ddd0790a7b2c15b9a7a765ea;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[COMMON] serial: samsung: Add sfr dump function

Change-Id: Ie12bae705cc959db18e6237ce4b0589f7a12a6fe
Signed-off-by: Kyungwoo Kang <kwoo.kang@samsung.com>
---

diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 50b39725b3ba..ead6a9acf9d6 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -109,6 +109,34 @@ EXPORT_SYMBOL_GPL(s3c2410_serial_wake_peer);
 #define RTS_PINCTRL			(1)
 #define DEFAULT_PINCTRL		(0)
 
+static void uart_sfr_dump(struct s3c24xx_uart_port *ourport)
+{
+	struct uart_port *port = &ourport->port;
+
+	dev_err(ourport->port.dev, " Register dump\n"
+		"ULCON	0x%08x	"
+		"UCON	0x%08x	"
+		"UFCON	0x%08x	\n"
+		"UMCON	0x%08x	"
+		"UTRSTAT	0x%08x	"
+		"UERSTAT	0x%08x	"
+		"UMSTAT	0x%08x	\n"
+		"UBRDIV	0x%08x	"
+		"UINTP	0x%08x	"
+		"UINTM	0x%08x	\n"
+		, readl(port->membase + S3C2410_ULCON)
+		, readl(port->membase + S3C2410_UCON)
+		, readl(port->membase + S3C2410_UFCON)
+		, readl(port->membase + S3C2410_UMCON)
+		, readl(port->membase + S3C2410_UTRSTAT)
+		, readl(port->membase + S3C2410_UERSTAT)
+		, readl(port->membase + S3C2410_UMSTAT)
+		, readl(port->membase + S3C2410_UBRDIV)
+		, readl(port->membase + S3C64XX_UINTP)
+		, readl(port->membase + S3C64XX_UINTM)
+	);
+}
+
 static void change_uart_gpio(int value, struct s3c24xx_uart_port *ourport)
 {
 	int status = 0;
@@ -463,6 +491,8 @@ s3c24xx_serial_rx_chars(int irq, void *dev_id)
 			dbg("rxerr: port ch=0x%02x, rxs=0x%08x\n",
 			    ch, uerstat);
 
+			uart_sfr_dump(ourport);
+
 			/* check for break */
 			if (uerstat & S3C2410_UERSTAT_BREAK) {
 				dbg("break!\n");