drm/exynos: fixed wrong pageflip finish event for interlace mode
authorSeung-Woo Kim <sw0312.kim@samsung.com>
Mon, 23 Apr 2012 11:30:13 +0000 (20:30 +0900)
committerInki Dae <inki.dae@samsung.com>
Thu, 17 May 2012 11:14:23 +0000 (20:14 +0900)
Pageflip finish event for interlace mode has bug on checking top
field vsync because of comparing between dma address converted
by start coordinates and non-converted dma address.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
drivers/gpu/drm/exynos/exynos_mixer.c

index 2f6727a4e7680f0f83d9033e950d4b48370a3220..3bc01a6b5e95cb7bb44ad9adb0a1de85f7832f1c 100644 (file)
@@ -886,7 +886,7 @@ static irqreturn_t mixer_irq_handler(int irq, void *arg)
        struct exynos_drm_hdmi_context *drm_hdmi_ctx = arg;
        struct mixer_context *ctx = drm_hdmi_ctx->ctx;
        struct mixer_resources *res = &ctx->mixer_res;
-       u32 val, val_base;
+       u32 val, base, shadow;
 
        spin_lock(&res->reg_slock);
 
@@ -897,12 +897,14 @@ static irqreturn_t mixer_irq_handler(int irq, void *arg)
        if (val & MXR_INT_STATUS_VSYNC) {
                /* interlace scan need to check shadow register */
                if (ctx->interlace) {
-                       val_base = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(0));
-                       if (ctx->win_data[0].dma_addr != val_base)
+                       base = mixer_reg_read(res, MXR_GRAPHIC_BASE(0));
+                       shadow = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(0));
+                       if (base != shadow)
                                goto out;
 
-                       val_base = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(1));
-                       if (ctx->win_data[1].dma_addr != val_base)
+                       base = mixer_reg_read(res, MXR_GRAPHIC_BASE(1));
+                       shadow = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(1));
+                       if (base != shadow)
                                goto out;
                }