drm/exynos: mixer: simplify loop in vp_win_reset()

A simple while loop should do the same here.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index eff8589..bea3cbd 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -698,10 +698,10 @@ static void mixer_graph_buffer(struct mixer_context *ctx,
 static void vp_win_reset(struct mixer_context *ctx)
 {
        struct mixer_resources *res = &ctx->mixer_res;
-       int tries = 100;
+       unsigned int tries = 100;
 
        vp_reg_write(res, VP_SRESET, VP_SRESET_PROCESSING);
-       for (tries = 100; tries; --tries) {
+       while (tries--) {
                /* waiting until VP_SRESET_PROCESSING is 0 */
                if (~vp_reg_read(res, VP_SRESET) & VP_SRESET_PROCESSING)
                        break;