serial: sprd: remove build warning

Remove build warnings including unused variable, unused function
and implicit pointer use from integer.

Change-Id: I9d2326cedfaeadd4de23d6fcd7a4d6d133ffdaac
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>

diff --git a/drivers/tty/serial/serial_sprd_dt.c b/drivers/tty/serial/serial_sprd_dt.c
index 5165e04..83b5616 100755 (executable)
--- a/drivers/tty/serial/serial_sprd_dt.c
+++ b/drivers/tty/serial/serial_sprd_dt.c
@@ -136,12 +136,12 @@ static struct serial_data plat_data;
 
 static inline unsigned int serial_in(struct uart_port *port, int offset)
 {
-       return __raw_readl(port->membase + offset);
+       return __raw_readl((void __iomem __force *)(port->membase + offset));
 }
 
 static inline void serial_out(struct uart_port *port, int offset, int value)
 {
-       __raw_writel(value, port->membase + offset);
+       __raw_writel(value, (void __iomem __force *)(port->membase + offset));
 }
 
 static unsigned int serial_sprd_tx_empty(struct uart_port *port)
@@ -365,17 +365,17 @@ static irqreturn_t wakeup_rx_interrupt(int irq, void *dev_id)
        u32 val;
 
        //SIC polarity 1
-       val = __raw_readl(SPRD_EICINT_BASE + 0x10);
+       val = __raw_readl((void __iomem __force *)(SPRD_EICINT_BASE + 0x10));
        if ((val & BIT(0)) == BIT(0))
                val &= ~BIT(0);
        else
                val |= BIT(0);
-       __raw_writel(val, SPRD_EICINT_BASE + 0x10);
+       __raw_writel(val, (void __iomem __force *)(SPRD_EICINT_BASE + 0x10));
 
        //clear interrupt
-       val = __raw_readl(SPRD_EICINT_BASE + 0x0C);
+       val = __raw_readl((void __iomem __force *)(SPRD_EICINT_BASE + 0x0C));
        val |= BIT(0);
-       __raw_writel(val, SPRD_EICINT_BASE + 0x0C);
+       __raw_writel(val, (void __iomem __force *)(SPRD_EICINT_BASE + 0x0C));
 
        // set wakeup symbol
        is_uart_rx_wakeup = true;
@@ -384,16 +384,6 @@ static irqreturn_t wakeup_rx_interrupt(int irq, void *dev_id)
 }
 #endif
 
-/* FIXME: this pin config should be just defined int general pin mux table */
-static void serial_sprd_pin_config(void)
-{
-#if (!defined CONFIG_ARCH_SCX35) && (!defined CONFIG_64BIT)
-       value = __raw_readl(SPRD_GREG_BASE + 0x08);
-       value |= 0x07 << 20;
-       __raw_writel(value, SPRD_GREG_BASE + 0x08);
-#endif
-}
-
 static int serial_sprd_startup(struct uart_port *port)
 {
        int ret = 0;
@@ -446,11 +436,12 @@ static void serial_sprd_reset(struct uart_port *port)
 {
        unsigned long value = 0;
 
-       writel_relaxed((BIT_UART0_SOFT_RST<<(port->line)), REG_AP_APB_APB_RST);
+       writel_relaxed((BIT_UART0_SOFT_RST<<(port->line)),
+                       (void __iomem __force *)REG_AP_APB_APB_RST);
 
-       value = readl_relaxed( REG_AP_APB_APB_RST);
+       value = readl_relaxed((void __iomem __force *)REG_AP_APB_APB_RST);
        value &= ~(BIT_UART0_SOFT_RST<<(port->line));
-       writel_relaxed(value, REG_AP_APB_APB_RST);
+       writel_relaxed(value, (void __iomem __force *)REG_AP_APB_APB_RST);
 }
 
 static void serial_sprd_shutdown(struct uart_port *port)
@@ -588,7 +579,7 @@ static int serial_sprd_verify_port(struct uart_port *port,
                return -EINVAL;
        return 0;
 }
-static int serial_sprd_dump_reg(struct uart_port *port)
+static void serial_sprd_dump_reg(struct uart_port *port)
 {
        printk("UART%d STS0 0X0008: 0X%08X\n\n", port->line, serial_in(port, ARM_UART_STS0));
        printk("UART%d STS1 0X000C: 0X%08X\n\n", port->line, serial_in(port, ARM_UART_STS1));
@@ -605,7 +596,6 @@ static ssize_t serial_sprd_config_reg_show(struct device *dev,
        struct device_attribute *attr, char *buf)
 {
        struct uart_port *port = dev_get_drvdata(dev);
-       unsigned int pinmap_uart_conf = 0;
        unsigned int uartclk_source = 0;
        unsigned int uart_reg_clk = 0;
 
@@ -683,16 +673,6 @@ static struct uart_ops serial_sprd_ops = {
 };
 static struct uart_port *serial_sprd_ports[UART_NR_MAX] = { 0 };
 
-static struct {
-       uint32_t ien;
-       uint32_t ctrl0;
-       uint32_t ctrl1;
-       uint32_t ctrl2;
-       uint32_t clkd0;
-       uint32_t clkd1;
-       uint32_t dspwait;
-} uart_bak[UART_NR_MAX];
-
 static int clk_startup(struct platform_device *pdev)
 {
 #ifndef CONFIG_64BIT
@@ -742,7 +722,6 @@ static int serial_sprd_setup_port(struct platform_device *pdev,
 {
 #ifndef CONFIG_64BIT
        struct serial_data plat_local_data;
-       struct device_node *np = pdev->dev.of_node;
 #endif
        struct uart_port *up;
        struct uart_sprd_debug * private_data ;
@@ -899,7 +878,7 @@ static int serial_sprd_probe(struct platform_device *pdev)
        if (np) {
 #ifndef CONFIG_64BIT
                struct serial_data *plat_local_data;
-               char *local_string;
+               const char *local_string;
                plat_local_data =
                    kmalloc(sizeof(struct serial_data), GFP_KERNEL);
                if (!plat_local_data) {