DECON in Exynos5433 has frame counter, it can be used to implement get_vblank_counter callback.
Signed-off-by: Andrzej Hajda a.hajda@samsung.com --- v2: - reuse decon_get_frame_count function already implemented in previous patch --- drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 12 ++++++++++++ drivers/gpu/drm/exynos/exynos_drm_crtc.c | 11 +++++++++++ drivers/gpu/drm/exynos/exynos_drm_drv.h | 1 + 3 files changed, 24 insertions(+)
diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c index 4ca3d6e..60ff81b 100644 --- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c @@ -166,6 +166,16 @@ static u32 decon_get_frame_count(struct decon_context *ctx, bool end) return frm; }
+static u32 decon_get_vblank_counter(struct exynos_drm_crtc *crtc) +{ + struct decon_context *ctx = crtc->ctx; + + if (test_bit(BIT_SUSPENDED, &ctx->flags)) + return 0; + + return decon_get_frame_count(ctx, false); +} + static void decon_setup_trigger(struct decon_context *ctx) { if (!(ctx->out_type & (IFTYPE_I80 | I80_HW_TRG))) @@ -564,6 +574,7 @@ static const struct exynos_drm_crtc_ops decon_crtc_ops = { .disable = decon_disable, .enable_vblank = decon_enable_vblank, .disable_vblank = decon_disable_vblank, + .get_vblank_counter = decon_get_vblank_counter, .atomic_begin = decon_atomic_begin, .update_plane = decon_update_plane, .disable_plane = decon_disable_plane, @@ -583,6 +594,7 @@ static int decon_bind(struct device *dev, struct device *master, void *data)
ctx->drm_dev = drm_dev; ctx->pipe = priv->pipe++; + drm_dev->max_vblank_count = 0xffffffff;
for (win = ctx->first_win; win < WINDOWS_NR; win++) { int tmp = (win == ctx->first_win) ? 0 : win; diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index 9184974..c02378b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -142,6 +142,16 @@ static void exynos_drm_crtc_disable_vblank(struct drm_crtc *crtc) exynos_crtc->ops->disable_vblank(exynos_crtc); }
+static u32 exynos_drm_crtc_get_vblank_counter(struct drm_crtc *crtc) +{ + struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc); + + if (exynos_crtc->ops->get_vblank_counter) + return exynos_crtc->ops->get_vblank_counter(exynos_crtc); + + return 0; +} + static const struct drm_crtc_funcs exynos_crtc_funcs = { .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, @@ -151,6 +161,7 @@ static const struct drm_crtc_funcs exynos_crtc_funcs = { .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, .enable_vblank = exynos_drm_crtc_enable_vblank, .disable_vblank = exynos_drm_crtc_disable_vblank, + .get_vblank_counter = exynos_drm_crtc_get_vblank_counter, };
struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev, diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index cb31769..906ab7a 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -133,6 +133,7 @@ struct exynos_drm_crtc_ops { void (*commit)(struct exynos_drm_crtc *crtc); int (*enable_vblank)(struct exynos_drm_crtc *crtc); void (*disable_vblank)(struct exynos_drm_crtc *crtc); + u32 (*get_vblank_counter)(struct exynos_drm_crtc *crtc); int (*atomic_check)(struct exynos_drm_crtc *crtc, struct drm_crtc_state *state); void (*atomic_begin)(struct exynos_drm_crtc *crtc);