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Groups > linux.kernel > #1560633
| From | Andrzej Hajda <a.hajda@samsung.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 2/3] drm/exynos/decon5433: fix CMU programming |
| Date | 2017-01-17 15:30 +0100 |
| Message-ID | <t0CVP-8bo-5@gated-at.bofh.it> (permalink) |
| References | <t0CMa-88g-29@gated-at.bofh.it> <t0CVP-8bo-7@gated-at.bofh.it> <t0CMa-88g-29@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
DECON_CMU register has reserved bits which should not be zeroed, otherwise IP can behave strangely and cause IOMMU faults. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> --- drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c index 6fd2b11..9f4d60d 100644 --- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c @@ -158,10 +158,6 @@ static void decon_commit(struct exynos_drm_crtc *crtc) m->crtc_vsync_end = m->crtc_vsync_start + 1; } - /* enable clock gate */ - val = CMU_CLKGAGE_MODE_SFR_F | CMU_CLKGAGE_MODE_MEM_F; - writel(val, ctx->addr + DECON_CMU); - decon_setup_trigger(ctx); /* lcd on and use command if */ -- 2.7.4
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[PATCH 2/3] drm/exynos/decon5433: fix CMU programming Andrzej Hajda <a.hajda@samsung.com> - 2017-01-17 15:30 +0100
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