backlight: s6e63m0: use sleep instead of delay

Replace mdelay with msleep to remove the busy loop waiting.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/video/backlight/s6e63m0.c b/drivers/video/backlight/s6e63m0.c
index cae140d..cff4515 100644 (file)
--- a/drivers/video/backlight/s6e63m0.c
+++ b/drivers/video/backlight/s6e63m0.c
@@ -406,8 +406,9 @@ static int s6e63m0_panel_send_sequence(struct s6e63m0 *lcd,
                        ret = s6e63m0_spi_write(lcd, wbuf[i], wbuf[i+1]);
                        if (ret)
                                break;
-               } else
-                       udelay(wbuf[i+1]*1000);
+               } else {
+                       msleep(wbuf[i+1]);
+               }
                i += 2;
        }
 
@@ -523,7 +524,7 @@ static int s6e63m0_power_on(struct s6e63m0 *lcd)
                return -EFAULT;
        } else {
                pd->power_on(lcd->ld, 1);
-               mdelay(pd->power_on_delay);
+               msleep(pd->power_on_delay);
        }
 
        if (!pd->reset) {
@@ -531,7 +532,7 @@ static int s6e63m0_power_on(struct s6e63m0 *lcd)
                return -EFAULT;
        } else {
                pd->reset(lcd->ld);
-               mdelay(pd->reset_delay);
+               msleep(pd->reset_delay);
        }
 
        ret = s6e63m0_ldi_init(lcd);
@@ -573,7 +574,7 @@ static int s6e63m0_power_off(struct s6e63m0 *lcd)
                return -EIO;
        }
 
-       mdelay(pd->power_off_delay);
+       msleep(pd->power_off_delay);
 
        if (!pd->power_on) {
                dev_err(lcd->dev, "power_on is NULL.\n");