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drm: exynos: mixer: fix using usleep() in atomic context

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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.stanislaws@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Tomasz Stanislawski 2015-09-25 14:48:29 +02:00 committed by Inki Dae
parent cf3e0fdd54
commit 02b3de4311
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/exynos/exynos_mixer.c
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@ -652,7 +652,7 @@ 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");
}