pxafb: introduce lcd_{read,write}l() to wrap the __raw_{read,write}l()

using __raw_{read,write}l() everywhere looks messy, introduce
lcd_{read,write}l() to get this cleaned up a bit

Signed-off-by: eric miao <eric.miao@marvell.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 0031a5fefa263623f91a98ad87a14af4041f78d9..417561779ec2296894a86db0e331e5cb6129d9cc 100644 (file)
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -71,6 +71,18 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var,
                                struct pxafb_info *);
 static void set_ctrlr_state(struct pxafb_info *fbi, u_int state);
 
+static inline unsigned long
+lcd_readl(struct pxafb_info *fbi, unsigned int off)
+{
+       return __raw_readl(fbi->mmio_base + off);
+}
+
+static inline void
+lcd_writel(struct pxafb_info *fbi, unsigned int off, unsigned long val)
+{
+       __raw_writel(val, fbi->mmio_base + off);
+}
+
 static inline void pxafb_schedule_work(struct pxafb_info *fbi, u_int state)
 {
        unsigned long flags;
@@ -684,8 +696,7 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var,
        fbi->reg_lccr1 = new_regs.lccr1;
        fbi->reg_lccr2 = new_regs.lccr2;
        fbi->reg_lccr3 = new_regs.lccr3;
-       fbi->reg_lccr4 = __raw_readl(fbi->mmio_base + LCCR4) &
-                               (~LCCR4_PAL_FOR_MASK);
+       fbi->reg_lccr4 = lcd_readl(fbi, LCCR4) & ~LCCR4_PAL_FOR_MASK;
        fbi->reg_lccr4 |= (fbi->lccr4 & LCCR4_PAL_FOR_MASK);
        set_hsync_time(fbi, pcd);
        local_irq_restore(flags);
@@ -694,12 +705,12 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var,
         * Only update the registers if the controller is enabled
         * and something has changed.
         */
-       if ((__raw_readl(fbi->mmio_base + LCCR0) != fbi->reg_lccr0) ||
-           (__raw_readl(fbi->mmio_base + LCCR1) != fbi->reg_lccr1) ||
-           (__raw_readl(fbi->mmio_base + LCCR2) != fbi->reg_lccr2) ||
-           (__raw_readl(fbi->mmio_base + LCCR3) != fbi->reg_lccr3) ||
-           (__raw_readl(fbi->mmio_base + FDADR0) != fbi->fdadr[0]) ||
-           (__raw_readl(fbi->mmio_base + FDADR1) != fbi->fdadr[1]))
+       if ((lcd_readl(fbi, LCCR0) != fbi->reg_lccr0) ||
+           (lcd_readl(fbi, LCCR1) != fbi->reg_lccr1) ||
+           (lcd_readl(fbi, LCCR2) != fbi->reg_lccr2) ||
+           (lcd_readl(fbi, LCCR3) != fbi->reg_lccr3) ||
+           (lcd_readl(fbi, FDADR0) != fbi->fdadr[0]) ||
+           (lcd_readl(fbi, FDADR1) != fbi->fdadr[1]))
                pxafb_schedule_work(fbi, C_REENABLE);
 
        return 0;
@@ -785,14 +796,14 @@ static void pxafb_enable_controller(struct pxafb_info *fbi)
        clk_enable(fbi->clk);
 
        /* Sequence from 11.7.10 */
-       __raw_writel(fbi->reg_lccr3, fbi->mmio_base + LCCR3);
-       __raw_writel(fbi->reg_lccr2, fbi->mmio_base + LCCR2);
-       __raw_writel(fbi->reg_lccr1, fbi->mmio_base + LCCR1);
-       __raw_writel(fbi->reg_lccr0 & ~LCCR0_ENB, fbi->mmio_base + LCCR0);
-
-       __raw_writel(fbi->fdadr[0], fbi->mmio_base + FDADR0);
-       __raw_writel(fbi->fdadr[1], fbi->mmio_base + FDADR1);
-       __raw_writel(fbi->reg_lccr0 | LCCR0_ENB, fbi->mmio_base + LCCR0);
+       lcd_writel(fbi, LCCR3, fbi->reg_lccr3);
+       lcd_writel(fbi, LCCR2, fbi->reg_lccr2);
+       lcd_writel(fbi, LCCR1, fbi->reg_lccr1);
+       lcd_writel(fbi, LCCR0, fbi->reg_lccr0 & ~LCCR0_ENB);
+
+       lcd_writel(fbi, FDADR0, fbi->fdadr[0]);
+       lcd_writel(fbi, FDADR1, fbi->fdadr[1]);
+       lcd_writel(fbi, LCCR0, fbi->reg_lccr0 | LCCR0_ENB);
 }
 
 static void pxafb_disable_controller(struct pxafb_info *fbi)
@@ -805,11 +816,11 @@ static void pxafb_disable_controller(struct pxafb_info *fbi)
        add_wait_queue(&fbi->ctrlr_wait, &wait);
 
        /* Clear LCD Status Register */
-       __raw_writel(0xffffffff, fbi->mmio_base + LCSR);
+       lcd_writel(fbi, LCSR, 0xffffffff);
 
-       lccr0 = __raw_readl(fbi->mmio_base + LCCR0) & ~LCCR0_LDM;
-       __raw_writel(lccr0, fbi->mmio_base + LCCR0);
-       __raw_writel(lccr0 | LCCR0_DIS, fbi->mmio_base + LCCR0);
+       lccr0 = lcd_readl(fbi, LCCR0) & ~LCCR0_LDM;
+       lcd_writel(fbi, LCCR0, lccr0);
+       lcd_writel(fbi, LCCR0, lccr0 | LCCR0_DIS);
 
        schedule_timeout(200 * HZ / 1000);
        remove_wait_queue(&fbi->ctrlr_wait, &wait);
@@ -824,15 +835,15 @@ static void pxafb_disable_controller(struct pxafb_info *fbi)
 static irqreturn_t pxafb_handle_irq(int irq, void *dev_id)
 {
        struct pxafb_info *fbi = dev_id;
-       unsigned int lccr0, lcsr = __raw_readl(fbi->mmio_base + LCSR);
+       unsigned int lccr0, lcsr = lcd_readl(fbi, LCSR);
 
        if (lcsr & LCSR_LDD) {
-               lccr0 = __raw_readl(fbi->mmio_base + LCCR0) | LCCR0_LDM;
-               __raw_writel(lccr0, fbi->mmio_base + LCCR0);
+               lccr0 = lcd_readl(fbi, LCCR0);
+               lcd_writel(fbi, LCCR0, lccr0 | LCCR0_LDM);
                wake_up(&fbi->ctrlr_wait);
        }
 
-       __raw_writel(lcsr, fbi->mmio_base + LCSR);
+       lcd_writel(fbi, LCSR, lcsr);
        return IRQ_HANDLED;
 }