disp: msm: sde: update alignment check for dest WB fb

This changes takes pitches into account for alignment check
of destination writeback fb. As per HW recommendation
the stride needs to be a multiple of 256 bits.

Change-Id: Ib823a8d309f7ed579d701a4bf56772ce318fb1f5
Signed-off-by: Jayaprakash Madisetty <[email protected]>

msm/sde/sde_encoder_phys_wb.c

@@ -838,7 +838,7 @@ static int _sde_enc_phys_wb_validate_cwb(struct sde_encoder_phys *phys_enc,
 	struct sde_rect wb_roi = {0,}, pu_roi = {0,};
 	u32  out_width = 0, out_height = 0;
 	const struct sde_format *fmt;
-	int prog_line, ret = 0;
+	int prog_line, ret = 0, i;
 
 	fb = sde_wb_connector_state_get_output_fb(conn_state);
 	if (!fb) {
@@ -902,12 +902,14 @@ static int _sde_enc_phys_wb_validate_cwb(struct sde_encoder_phys *phys_enc,
 		return -EINVAL;
 	}
 
-	if (((wb_roi.w < out_width) || (wb_roi.h < out_height)) &&
-			((wb_roi.w * wb_roi.h * fmt->bpp) % 256) && !SDE_FORMAT_IS_LINEAR(fmt)) {
-		SDE_ERROR("invalid stride w=%d h=%d bpp=%d out_width=%d, out_height=%d lin=%d\n",
-				wb_roi.w, wb_roi.h, fmt->bpp, out_width, out_height,
-				SDE_FORMAT_IS_LINEAR(fmt));
-		return -EINVAL;
+	/* pitch has to be multiple of 256 bits */
+	for (i = 0; i < fb->format->num_planes; i++) {
+		if (fb->pitches[i] % 32) {
+			SDE_ERROR("invalid stride plane:%d pitch:%u fmt: %4.4s bpp:%d wxh:%dx%d\n",
+				i, fb->pitches[i], (char *)&fmt->base.pixel_format,
+				fmt->bpp, wb_roi.w, wb_roi.h);
+			return -EINVAL;
+		}
 	}
 
 	/*