[PATCH 3/5] drm: lcdif: remove superfluous setup of framebuffer DMA address

[Lucas Stach]

Now that the plane state is fully programmed into the hardware before
the scanout is started there is no need to program the plane framebuffer
DMA address from the CRTC atomic_enable anymore.

Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
---
 drivers/gpu/drm/mxsfb/lcdif_kms.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/gpu/drm/mxsfb/lcdif_kms.c b/drivers/gpu/drm/mxsfb/lcdif_kms.c
index 4acf6914a8d1..33a082366b25 100644
--- a/drivers/gpu/drm/mxsfb/lcdif_kms.c
+++ b/drivers/gpu/drm/mxsfb/lcdif_kms.c
@@ -541,7 +541,6 @@ static void lcdif_crtc_atomic_enable(struct drm_crtc *crtc,
 									    crtc->primary);
 	struct drm_display_mode *m = &lcdif->crtc.state->adjusted_mode;
 	struct drm_device *drm = lcdif->drm;
-	dma_addr_t paddr;
 
 	clk_set_rate(lcdif->clk, m->crtc_clock * 1000);
 
@@ -549,15 +548,6 @@ static void lcdif_crtc_atomic_enable(struct drm_crtc *crtc,
 
 	lcdif_crtc_mode_set_nofb(new_cstate, new_pstate);
 
-	/* Write cur_buf as well to avoid an initial corrupt frame */
-	paddr = drm_fb_dma_get_gem_addr(new_pstate->fb, new_pstate, 0);
-	if (paddr) {
-		writel(lower_32_bits(paddr),
-		       lcdif->base + LCDC_V8_CTRLDESCL_LOW0_4);
-		writel(CTRLDESCL_HIGH0_4_ADDR_HIGH(upper_32_bits(paddr)),
-		       lcdif->base + LCDC_V8_CTRLDESCL_HIGH0_4);
-	}
-
 	drm_crtc_vblank_on(crtc);
 }
 
-- 
2.39.2