[PATCH v7 09/21] OMAP2+: UART: Remove uart reset function.

[Govindraj.R]

Remove the uart reset function which is configuring the
TX empty irq which can now be handled within omap-serial driver.

Signed-off-by: Govindraj.R <govindraj.raja at ti.com>
---
 arch/arm/mach-omap2/serial.c                  |   14 --------------
 arch/arm/plat-omap/include/plat/omap-serial.h |    2 ++
 drivers/tty/serial/omap-serial.c              |    1 +
 3 files changed, 3 insertions(+), 14 deletions(-)

diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index cfe6055..7dd75f1 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -96,19 +96,6 @@ static struct omap_device_pm_latency omap_uart_latency[] = {
 	},
 };
 
-/*
- * Internal UARTs need to be initialized for the 8250 autoconfig to work
- * properly. Note that the TX watermark initialization may not be needed
- * once the 8250.c watermark handling code is merged.
- */
-
-static inline void __init omap_uart_reset(struct omap_uart_state *uart)
-{
-	serial_write_reg(uart, UART_OMAP_MDR1, UART_OMAP_MDR1_DISABLE);
-	serial_write_reg(uart, UART_OMAP_SCR, 0x08);
-	serial_write_reg(uart, UART_OMAP_MDR1, UART_OMAP_MDR1_16X_MODE);
-}
-
 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
 
 /*
@@ -544,7 +531,6 @@ void __init omap_serial_init_port(struct omap_board_data *bdata)
 
 	omap_device_enable(uart->pdev);
 	omap_uart_idle_init(uart);
-	omap_uart_reset(uart);
 	omap_hwmod_enable_wakeup(uart->oh);
 	omap_device_idle(uart->pdev);
 
diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h
index 70e7738..5b913c7 100644
--- a/arch/arm/plat-omap/include/plat/omap-serial.h
+++ b/arch/arm/plat-omap/include/plat/omap-serial.h
@@ -33,6 +33,8 @@
 
 #define OMAP_MODE13X_SPEED	230400
 
+#define OMAP_UART_SCR_TX_EMPTY	0x08
+
 /* WER = 0x7F
  * Enable module level wakeup in WER reg
  */
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 192fc8b..a7fdf94 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -773,6 +773,7 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 	serial_out(up, UART_IER, up->ier);
 	serial_out(up, UART_LCR, cval);		/* reset DLAB */
 	up->lcr = cval;
+	up->scr = OMAP_UART_SCR_TX_EMPTY;
 
 	/* FIFOs and DMA Settings */
 
-- 
1.7.4.1