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drm/exynos: add ratio calculation

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Calculation ratio from exynos_drm plane codes, then each hw drivers can
use it without extra operation. Also this fixes width and height of
source used for actual crtc shown via screen.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Joonyoung Shim
2015-04-07 15:59:39 +09:00
committed by Inki Dae
parent cb8a3db29f
commit 3cabaf7ea7
3 changed files with 12 additions and 9 deletions
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9
drivers/gpu/drm/exynos/exynos_mixer.c
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@@ -382,7 +382,6 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
struct mixer_resources *res = &ctx->mixer_res;
unsigned long flags;
struct exynos_drm_plane *plane;
unsigned int x_ratio, y_ratio;
unsigned int buf_num = 1;
dma_addr_t luma_addr[2], chroma_addr[2];
bool tiled_mode = false;
@@ -407,10 +406,6 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
return;
}
/* scaling feature: (src << 16) / dst */
x_ratio = (plane->src_width << 16) / plane->crtc_width;
y_ratio = (plane->src_height << 16) / plane->crtc_height;
if (buf_num == 2) {
luma_addr[0] = plane->dma_addr[0];
chroma_addr[0] = plane->dma_addr[1];
@@ -470,8 +465,8 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
vp_reg_write(res, VP_DST_V_POSITION, plane->crtc_y);
}
vp_reg_write(res, VP_H_RATIO, x_ratio);
vp_reg_write(res, VP_V_RATIO, y_ratio);
vp_reg_write(res, VP_H_RATIO, plane->h_ratio);
vp_reg_write(res, VP_V_RATIO, plane->v_ratio);
vp_reg_write(res, VP_ENDIAN_MODE, VP_ENDIAN_MODE_LITTLE);