+ if (priv->soc_info->use_extended_hwdesc) {
+ hwdesc->cmd |= JZ_LCD_CMD_FRM_ENABLE;
+
+ /* Extended 8-byte descriptor */
+ hwdesc->cpos = 0;
+ hwdesc->offsize = 0;
+ hwdesc->pagewidth = 0;
+
+ switch (newstate->fb->format->format) {
+ case DRM_FORMAT_XRGB1555:
+ hwdesc->cpos |= JZ_LCD_CPOS_RGB555;
+ fallthrough;
+ case DRM_FORMAT_RGB565:
+ hwdesc->cpos |= JZ_LCD_CPOS_BPP_15_16;
+ break;
+ case DRM_FORMAT_XRGB8888:
+ hwdesc->cpos |= JZ_LCD_CPOS_BPP_18_24;
+ break;
+ }
+ hwdesc->cpos |= (JZ_LCD_CPOS_COEFFICIENT_1 <<
+ JZ_LCD_CPOS_COEFFICIENT_OFFSET);
+ hwdesc->dessize =
+ (0xff << JZ_LCD_DESSIZE_ALPHA_OFFSET) |
+ FIELD_PREP(JZ_LCD_DESSIZE_HEIGHT_MASK, height - 1) |
+ FIELD_PREP(JZ_LCD_DESSIZE_WIDTH_MASK, width - 1);
+ }
+