This patch fixes calling usleep_range() after taking reg_slock
using spin_lock_irqsave(). The mdelay() is used instead.
Waiting in atomic context is not the best idea in general.
Hopefully, waiting occurs only when Video Processor fails
to reset correctly.
Signed-off-by: Tomasz Stanislawski <t.stanisl...@samsung.com>
---
drivers/gpu/drm/exynos/exynos_mixer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c
b/drivers/gpu/drm/exynos/exynos_mixer.c
index ce28881..e3306c8 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -615,7 +615,7 @@ static void vp_win_reset(struct mixer_context *ctx)
/* waiting until VP_SRESET_PROCESSING is 0 */
if (~vp_reg_read(res, VP_SRESET) & VP_SRESET_PROCESSING)
break;
- usleep_range(10000, 12000);
+ mdelay(10);
}
WARN(tries == 0, "failed to reset Video Processor\n");
}
--
1.7.9.5
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