We always translate the dma address such that the offsets of the source image are zero. Hence we can remove manipulation of the MXR_GRAPHIC_SXY(win) register. We leave the register defines (in regs_mixer.h) in place, since they document the hardware. Signed-off-by: Tobias Jakobi <tjakobi@xxxxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/exynos/exynos_mixer.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 8d68de85bada..28fbe79befff 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -584,7 +584,7 @@ static void mixer_graph_buffer(struct mixer_context *ctx, unsigned long flags; unsigned int win = plane->index; unsigned int x_ratio = 0, y_ratio = 0; - unsigned int src_x_offset, src_y_offset, dst_x_offset, dst_y_offset; + unsigned int dst_x_offset, dst_y_offset; dma_addr_t dma_addr; unsigned int fmt; u32 val; @@ -618,12 +618,10 @@ static void mixer_graph_buffer(struct mixer_context *ctx, dst_x_offset = state->crtc.x; dst_y_offset = state->crtc.y; - /* converting dma address base and source offset */ + /* translate dma address base s.t. the source image offset is zero */ dma_addr = exynos_drm_fb_dma_addr(fb, 0) + (state->src.x * fb->format->cpp[0]) + (state->src.y * fb->pitches[0]); - src_x_offset = 0; - src_y_offset = 0; if (mode->flags & DRM_MODE_FLAG_INTERLACE) __set_bit(MXR_BIT_INTERLACE, &ctx->flags); @@ -654,11 +652,6 @@ static void mixer_graph_buffer(struct mixer_context *ctx, val |= MXR_GRP_WH_V_SCALE(y_ratio); mixer_reg_write(res, MXR_GRAPHIC_WH(win), val); - /* setup offsets in source image */ - val = MXR_GRP_SXY_SX(src_x_offset); - val |= MXR_GRP_SXY_SY(src_y_offset); - mixer_reg_write(res, MXR_GRAPHIC_SXY(win), val); - /* setup offsets in display image */ val = MXR_GRP_DXY_DX(dst_x_offset); val |= MXR_GRP_DXY_DY(dst_y_offset); -- 2.13.0 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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