From 5a6f68d4963dcd7c7ffc8876ed6e18978cf4a03a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20M=C3=BCller=20=28ELSOFT=20AG=29?=
<d.mueller@elsoft.ch>
Date: Sat, 6 Feb 2016 07:57:27 +0100
Subject: [PATCH] Remove unused CONFIG_HWFLOW option and associated dead code.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: David Müller <d.mueller@elsoft.ch>
---
drivers/serial/serial_s3c24x0.c | 35 ---------------------------------
1 file changed, 35 deletions(-)
diff --git a/drivers/serial/serial_s3c24x0.c b/drivers/serial/serial_s3c24x0.c
index 4cc94d9aa9d..fb895fd3264 100644
--- a/drivers/serial/serial_s3c24x0.c
+++ b/drivers/serial/serial_s3c24x0.c
@@ -65,10 +65,6 @@ DECLARE_GLOBAL_DATA_PTR;
.puts = s3serial##port##_puts, \
}
-#ifdef CONFIG_HWFLOW
-static int hwflow;
-#endif
-
static void _serial_setbrg(const int dev_index)
{
struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
@@ -95,10 +91,6 @@ static int serial_init_dev(const int dev_index)
{
struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
-#ifdef CONFIG_HWFLOW
- hwflow = 0; /* turned off by default */
-#endif
-
/* FIFO enable, Tx/Rx FIFO clear */
writel(0x07, &uart->ufcon);
writel(0x0, &uart->umcon);
@@ -111,10 +103,6 @@ static int serial_init_dev(const int dev_index)
*/
writel(0x245, &uart->ucon);
-#ifdef CONFIG_HWFLOW
- writel(0x1, &uart->umcon); /* rts up */
-#endif
-
/* FIXME: This is sooooooooooooooooooo ugly */
#if defined(CONFIG_ARCH_GTA02_v1) || defined(CONFIG_ARCH_GTA02_v2)
/* we need auto hw flow control on the gsm and gps port */
@@ -146,24 +134,6 @@ static inline int serial_getc_dev(unsigned int dev_index)
return _serial_getc(dev_index);
}
-#ifdef CONFIG_HWFLOW
-int hwflow_onoff(int on)
-{
- switch (on) {
- case 0:
- default:
- break; /* return current */
- case 1:
- hwflow = 1; /* turn on */
- break;
- case -1:
- hwflow = 0; /* turn off */
- break;
- }
- return hwflow;
-}
-#endif
-
/*
* Output a single byte to the serial port.
*/
@@ -174,11 +144,6 @@ static void _serial_putc(const char c, const int dev_index)
while (!(readl(&uart->utrstat) & 0x2))
/* wait for room in the tx FIFO */ ;
-#ifdef CONFIG_HWFLOW
- while (hwflow && !(readl(&uart->umstat) & 0x1))
- /* Wait for CTS up */ ;
-#endif
-
writeb(c, &uart->utxh);
/* If \n, also do \r */
--
GitLab