drm: hdlcd: Replace drm_fb_get_bpp_depth() with drm_format_plane_cpp()

The driver needs the number of bytes per pixel, not the bpp and depth
info meant for fbdev compatibility. Use the right API.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1476744081-24485-6-git-send-email-laurent.pinchart@ideasonboard.com

drivers/gpu/drm/arm/hdlcd_crtc.c

@@ -223,14 +223,12 @@ static void hdlcd_plane_atomic_update(struct drm_plane *plane,
 {
 	struct hdlcd_drm_private *hdlcd;
 	struct drm_gem_cma_object *gem;
-	unsigned int depth, bpp;
 	u32 src_w, src_h, dest_w, dest_h;
 	dma_addr_t scanout_start;
 
 	if (!plane->state->fb)
 		return;
 
-	drm_fb_get_bpp_depth(plane->state->fb->pixel_format, &depth, &bpp);
 	src_w = plane->state->src_w >> 16;
 	src_h = plane->state->src_h >> 16;
 	dest_w = plane->state->crtc_w;
@@ -238,7 +236,8 @@ static void hdlcd_plane_atomic_update(struct drm_plane *plane,
 	gem = drm_fb_cma_get_gem_obj(plane->state->fb, 0);
 	scanout_start = gem->paddr + plane->state->fb->offsets[0] +
 		plane->state->crtc_y * plane->state->fb->pitches[0] +
-		plane->state->crtc_x * bpp / 8;
+		plane->state->crtc_x *
+		drm_format_plane_cpp(plane->state->fb->pixel_format, 0);
 
 	hdlcd = plane->dev->dev_private;
 	hdlcd_write(hdlcd, HDLCD_REG_FB_LINE_LENGTH, plane->state->fb->pitches[0]);