jdi_panel_init() is never called in atomic context.

Despite never getting called from atomic context, jdi_panel_init()
calls mdelay() to busily wait.
This is not necessary and can be replaced with usleep_range() 
and msleep() to avoid busy waiting.

This is found by a static analysis tool named DCNS written by myself.
And I also manually check it.

Signed-off-by: Jia-Ju Bai <baijiaju1...@gmail.com>
---
 drivers/gpu/drm/panel/panel-jdi-lt070me05000.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c 
b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
index 5b2340e..46b12a6 100644
--- a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
+++ b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
@@ -128,7 +128,7 @@ static int jdi_panel_init(struct jdi_panel *jdi)
                return ret;
        }
 
-       mdelay(10);
+       usleep_range(10000, 11000);
 
        /* Interface setting, video mode */
        ret = mipi_dsi_generic_write(dsi, (u8[])
@@ -139,7 +139,7 @@ static int jdi_panel_init(struct jdi_panel *jdi)
                return ret;
        }
 
-       mdelay(20);
+       msleep(20);
 
        ret = mipi_dsi_generic_write(dsi, (u8[]){0xB0, 0x03}, 2);
        if (ret < 0) {
-- 
1.9.1

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