Revert "drm/exynos/decon5433: implement frame counter"

[ Upstream commit 6ca469e22a30992b4478d2ab88737c70667c1e00 ]

This reverts commit 0586feba322e1de05075700eb4b835c8b683e62b

This patch makes it to need get_vblank_counter callback in crtc
to get frame counter from decon driver.

However, drm_dev->max_vblank_count is a member unique to
vendor's DRM driver but in case of ARM DRM, some CRTC devices
don't provide the frame counter value. As a result, this patch
made extension and clone mode not working.

Instead of this patch, we may need separated max_vblank_count
which belongs to each CRTC device, or need to implement frame
counter emulation for them who don't support HW frame counter.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
index f905c21..5a5b353 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
@@ -160,13 +160,6 @@ 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;
-
-       return decon_get_frame_count(ctx, false);
-}
-
 static void decon_setup_trigger(struct decon_context *ctx)
 {
        if (!ctx->crtc->i80_mode && !(ctx->out_type & I80_HW_TRG))
@@ -532,7 +525,6 @@ 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,
@@ -550,7 +542,6 @@ static int decon_bind(struct device *dev, struct device *master, void *data)
        int ret;
 
        ctx->drm_dev = drm_dev;
-       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 6ce0821..4787560 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -147,16 +147,6 @@ 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,
@@ -166,7 +156,6 @@ 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 f8bae4c..d228b51 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -133,7 +133,6 @@ struct exynos_drm_crtc_ops {
        void (*disable)(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);
        enum drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc,
                const struct drm_display_mode *mode);
        int (*atomic_check)(struct exynos_drm_crtc *crtc,