From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
Only set/clear the update bit in the CRTC's .atomic_begin()/flush()
so all planes are really committed at the same time.
Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
---
v2: rename prepare_plane/cleanup_plane to atomic_begin/atomic_flush
---
drivers/gpu/drm/exynos/exynos_drm_fimd.c | 57 +++++++++++++++++++-------------
1 file changed, 34 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 30c1409..005a996 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -591,6 +591,16 @@ static void fimd_shadow_protect_win(struct fimd_context *ctx,
{
u32 reg, bits, val;
+ /*
+ * SHADOWCON/PRTCON register is used for enabling timing.
+ *
+ * for example, once only width value of a register is set,
+ * if the dma is started then fimd hardware could malfunction so
+ * with protect window setting, the register fields with prefix '_F'
+ * wouldn't be updated at vsync also but updated once unprotect window
+ * is set.
+ */
+
if (ctx->driver_data->has_shadowcon) {
reg = SHADOWCON;
bits = SHADOWCON_WINx_PROTECT(win);
@@ -607,6 +617,28 @@ static void fimd_shadow_protect_win(struct fimd_context *ctx,
writel(val, ctx->regs + reg);
}
+static void fimd_atomic_begin(struct exynos_drm_crtc *crtc,
+ struct exynos_drm_plane *plane)
+{
+ struct fimd_context *ctx = crtc->ctx;
+
+ if (ctx->suspended)
+ return;
+
+ fimd_shadow_protect_win(ctx, plane->zpos, true);
+}
+
+static void fimd_atomic_flush(struct exynos_drm_crtc *crtc,
+ struct exynos_drm_plane *plane)
+{
+ struct fimd_context *ctx = crtc->ctx;
+
+ if (ctx->suspended)
+ return;
+
+ fimd_shadow_protect_win(ctx, plane->zpos, false);
+}
+
static void fimd_update_plane(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
@@ -622,20 +654,6 @@ static void fimd_update_plane(struct exynos_drm_crtc *crtc,
if (ctx->suspended)
return;
- /*
- * SHADOWCON/PRTCON register is used for enabling timing.
- *
- * for example, once only width value of a register is set,
- * if the dma is started then fimd hardware could malfunction so
- * with protect window setting, the register fields with prefix '_F'
- * wouldn't be updated at vsync also but updated once unprotect window
- * is set.
- */
-
- /* protect windows */
- fimd_shadow_protect_win(ctx, win, true);
-
-
offset = plane->src_x * bpp;
offset += plane->src_y * pitch;
@@ -707,9 +725,6 @@ static void fimd_update_plane(struct exynos_drm_crtc *crtc,
if (ctx->driver_data->has_shadowcon)
fimd_enable_shadow_channel_path(ctx, win, true);
- /* Enable DMA channel and unprotect windows */
- fimd_shadow_protect_win(ctx, win, false);
-
if (ctx->i80_if)
atomic_set(&ctx->win_updated, 1);
}
@@ -723,16 +738,10 @@ static void fimd_disable_plane(struct exynos_drm_crtc *crtc,
if (ctx->suspended)
return;
- /* protect windows */
- fimd_shadow_protect_win(ctx, win, true);
-
fimd_enable_video_output(ctx, win, false);
if (ctx->driver_data->has_shadowcon)
fimd_enable_shadow_channel_path(ctx, win, false);
-
- /* unprotect windows */
- fimd_shadow_protect_win(ctx, win, false);
}
static void fimd_enable(struct exynos_drm_crtc *crtc)
@@ -875,8 +884,10 @@ static const struct exynos_drm_crtc_ops fimd_crtc_ops = {
.enable_vblank = fimd_enable_vblank,
.disable_vblank = fimd_disable_vblank,
.wait_for_vblank = fimd_wait_for_vblank,
+ .atomic_begin = fimd_atomic_begin,
.update_plane = fimd_update_plane,
.disable_plane = fimd_disable_plane,
+ .atomic_flush = fimd_atomic_flush,
.te_handler = fimd_te_handler,
.clock_enable = fimd_dp_clock_enable,
};
--
2.1.0
--
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