From 3dbaab16c4cddbbb03ad7ed1a0285605a9cc4016 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Tue, 5 Jan 2016 13:52:52 +0100 Subject: [PATCH] drm/exynos: mixer: properly update all planes on the same vblank event This patch also moves mixer_vsync_set_update() to newly introduced mixer_atomic_begin/flush callbacks. This ensures that all mixer planes will be updated on the same vsync event. Signed-off-by: Marek Szyprowski Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_mixer.c | 34 ++++++++++++++++++++------- 1 file changed, 25 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index bf148dc3623c..b5fbc1cbf024 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -516,7 +516,6 @@ static void vp_video_buffer(struct mixer_context *ctx, } spin_lock_irqsave(&res->reg_slock, flags); - mixer_vsync_set_update(ctx, false); /* interlace or progressive scan mode */ val = (ctx->interlace ? ~0 : 0); @@ -567,7 +566,6 @@ static void vp_video_buffer(struct mixer_context *ctx, mixer_cfg_vp_blend(ctx); mixer_run(ctx); - mixer_vsync_set_update(ctx, true); spin_unlock_irqrestore(&res->reg_slock, flags); mixer_regs_dump(ctx); @@ -642,7 +640,6 @@ static void mixer_graph_buffer(struct mixer_context *ctx, ctx->interlace = false; spin_lock_irqsave(&res->reg_slock, flags); - mixer_vsync_set_update(ctx, false); /* setup format */ mixer_reg_writemask(res, MXR_GRAPHIC_CFG(win), @@ -691,7 +688,6 @@ static void mixer_graph_buffer(struct mixer_context *ctx, mixer_run(ctx); - mixer_vsync_set_update(ctx, true); spin_unlock_irqrestore(&res->reg_slock, flags); mixer_regs_dump(ctx); @@ -718,7 +714,6 @@ static void mixer_win_reset(struct mixer_context *ctx) unsigned long flags; spin_lock_irqsave(&res->reg_slock, flags); - mixer_vsync_set_update(ctx, false); mixer_reg_writemask(res, MXR_CFG, MXR_CFG_DST_HDMI, MXR_CFG_DST_MASK); @@ -749,7 +744,6 @@ static void mixer_win_reset(struct mixer_context *ctx) if (ctx->vp_enabled) mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_VP_ENABLE); - mixer_vsync_set_update(ctx, true); spin_unlock_irqrestore(&res->reg_slock, flags); } @@ -980,6 +974,16 @@ static void mixer_disable_vblank(struct exynos_drm_crtc *crtc) mixer_reg_writemask(res, MXR_INT_EN, 0, MXR_INT_EN_VSYNC); } +static void mixer_atomic_begin(struct exynos_drm_crtc *crtc) +{ + struct mixer_context *mixer_ctx = crtc->ctx; + + if (!test_bit(MXR_BIT_POWERED, &mixer_ctx->flags)) + return; + + mixer_vsync_set_update(mixer_ctx, false); +} + static void mixer_update_plane(struct exynos_drm_crtc *crtc, struct exynos_drm_plane *plane) { @@ -1009,12 +1013,18 @@ static void mixer_disable_plane(struct exynos_drm_crtc *crtc, return; spin_lock_irqsave(&res->reg_slock, flags); - mixer_vsync_set_update(mixer_ctx, false); - mixer_cfg_layer(mixer_ctx, plane->index, 0, false); + spin_unlock_irqrestore(&res->reg_slock, flags); +} + +static void mixer_atomic_flush(struct exynos_drm_crtc *crtc) +{ + struct mixer_context *mixer_ctx = crtc->ctx; + + if (!test_bit(MXR_BIT_POWERED, &mixer_ctx->flags)) + return; mixer_vsync_set_update(mixer_ctx, true); - spin_unlock_irqrestore(&res->reg_slock, flags); } static void mixer_wait_for_vblank(struct exynos_drm_crtc *crtc) @@ -1055,6 +1065,8 @@ static void mixer_enable(struct exynos_drm_crtc *crtc) pm_runtime_get_sync(ctx->dev); + mixer_vsync_set_update(ctx, false); + mixer_reg_writemask(res, MXR_STATUS, ~0, MXR_STATUS_SOFT_RESET); if (test_bit(MXR_BIT_VSYNC, &ctx->flags)) { @@ -1063,6 +1075,8 @@ static void mixer_enable(struct exynos_drm_crtc *crtc) } mixer_win_reset(ctx); + mixer_vsync_set_update(ctx, true); + set_bit(MXR_BIT_POWERED, &ctx->flags); } @@ -1113,8 +1127,10 @@ static const struct exynos_drm_crtc_ops mixer_crtc_ops = { .enable_vblank = mixer_enable_vblank, .disable_vblank = mixer_disable_vblank, .wait_for_vblank = mixer_wait_for_vblank, + .atomic_begin = mixer_atomic_begin, .update_plane = mixer_update_plane, .disable_plane = mixer_disable_plane, + .atomic_flush = mixer_atomic_flush, .atomic_check = mixer_atomic_check, }; -- 2.20.1