msm_serial: Fix sparse warnings

drivers/tty/serial/msm_serial.c:302:6: warning: symbol 'msm_set_mctrl' was
not declared. Should it be static?
drivers/tty/serial/msm_serial.c:597:17: warning: incorrect type in argument 2
(different address spaces)
drivers/tty/serial/msm_serial.c:597:17: expected void volatile [noderef] <asn:2>*addr
drivers/tty/serial/msm_serial.c:597:17: got unsigned int *
drivers/tty/serial/msm_serial.c:608:33: warning: incorrect type in argument 1
(different address spaces)
drivers/tty/serial/msm_serial.c:608:33: expected void volatile [noderef] <asn:2>*addr
drivers/tty/serial/msm_serial.c:608:33: got unsigned int *gsbi_base
drivers/tty/serial/msm_serial.c:648:37: warning: incorrect type in assignment
(different address spaces)
drivers/tty/serial/msm_serial.c:648:37: expected unsigned int *gsbi_base
drivers/tty/serial/msm_serial.c:648:37: got void [noderef] <asn:2>*

Mark the ioremapped memory as __iomem and use writel instead of
iowrite because we're not dealing with PCI devices. Also, mark
msm_set_mctrl() static because it isn't used outside this file.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 7 insertions, 10 deletions

diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 5a88d88b25da..4184c5164ab4 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -45,7 +45,7 @@ struct msm_port {
         struct clk              *clk;
         struct clk              *pclk;
         unsigned int            imr;
-        unsigned int            *gsbi_base;
+        void __iomem            *gsbi_base;
         int                     is_uartdm;
         unsigned int            old_snap_state;
 };
@@ -299,7 +299,7 @@ static void msm_reset(struct uart_port *port)
         msm_write(port, UART_CR_CMD_SET_RFR, UART_CR);
 }
 
-void msm_set_mctrl(struct uart_port *port, unsigned int mctrl)
+static void msm_set_mctrl(struct uart_port *port, unsigned int mctrl)
 {
         unsigned int mr;
         mr = msm_read(port, UART_MR1);
@@ -593,12 +593,10 @@ static void msm_release_port(struct uart_port *port)
         port->membase = NULL;
 
         if (msm_port->gsbi_base) {
-                iowrite32(GSBI_PROTOCOL_IDLE, msm_port->gsbi_base +
-                          GSBI_CONTROL);
-
-                gsbi_resource = platform_get_resource(pdev,
-                                                        IORESOURCE_MEM, 1);
+                writel_relaxed(GSBI_PROTOCOL_IDLE,
+                                msm_port->gsbi_base + GSBI_CONTROL);
 
+                gsbi_resource = platform_get_resource(pdev, IORESOURCE_MEM, 1);
                 if (unlikely(!gsbi_resource))
                         return;
 
@@ -672,10 +670,9 @@ static void msm_config_port(struct uart_port *port, int flags)
                 if (ret)
                         return;
         }
-
         if (msm_port->is_uartdm)
-                iowrite32(GSBI_PROTOCOL_UART, msm_port->gsbi_base +
-                          GSBI_CONTROL);
+                writel_relaxed(GSBI_PROTOCOL_UART,
+                                msm_port->gsbi_base + GSBI_CONTROL);
 }
 
 static int msm_verify_port(struct uart_port *port, struct serial_struct *ser)