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Subject[PATCH 1/6] pch_uart: change type to u8
Date
Target uart register access size is 8bit.
However, 32bit is used at 2 points.

This patch modifies type "unsigned int" to "unsigned char".

Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
---
drivers/tty/serial/pch_uart.c | 12 ++++--------
1 files changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 284fa48..797fad2 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -460,14 +460,10 @@ static int pch_uart_hal_read(struct eg20t_port *priv, unsigned char *buf,
return i;
}

-static unsigned int pch_uart_hal_get_iid(struct eg20t_port *priv)
+static unsigned char pch_uart_hal_get_iid(struct eg20t_port *priv)
{
- unsigned int iir;
- int ret;
-
- iir = ioread8(priv->membase + UART_IIR);
- ret = (iir & (PCH_UART_IIR_IID | PCH_UART_IIR_TOI | PCH_UART_IIR_IP));
- return ret;
+ return ioread8(priv->membase + UART_IIR) &\
+ (PCH_UART_IIR_IID | PCH_UART_IIR_TOI | PCH_UART_IIR_IP);
}

static u8 pch_uart_hal_get_line_status(struct eg20t_port *priv)
@@ -955,7 +951,7 @@ static irqreturn_t pch_uart_interrupt(int irq, void *dev_id)
unsigned int handled;
u8 lsr;
int ret = 0;
- unsigned int iid;
+ unsigned char iid;
unsigned long flags;

spin_lock_irqsave(&priv->port.lock, flags);
--
1.7.4.4


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