pci: video: Set up the pixel-format field

Add this information to the handoff structure so that it is available to
U-Boot proper. Update bochs and the video handoff.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c
index 2753df2..3697ad0 100644
--- a/drivers/pci/pci_rom.c
+++ b/drivers/pci/pci_rom.c
@@ -347,6 +347,7 @@
 	case 32:
 	case 24:
 		uc_priv->bpix = VIDEO_BPP32;
+		uc_priv->format = VIDEO_X8B8G8R8;
 		break;
 	case 16:
 		uc_priv->bpix = VIDEO_BPP16;
@@ -392,6 +393,7 @@
 		uc_priv->ysize = ho->ysize;
 		uc_priv->line_length = ho->line_length;
 		uc_priv->bpix = ho->bpix;
+		uc_priv->format = ho->format;
 	} else {
 		bootstage_start(BOOTSTAGE_ID_ACCUM_LCD, "vesa display");
 		ret = dm_pci_run_vga_bios(dev, int15_handler,
@@ -438,6 +440,7 @@
 		ho->ysize = uc_priv->ysize;
 		ho->line_length = uc_priv->line_length;
 		ho->bpix = uc_priv->bpix;
+		ho->format = uc_priv->format;
 	}
 
 	return 0;
diff --git a/drivers/video/bochs.c b/drivers/video/bochs.c
index 00e673a..c34bc23 100644
--- a/drivers/video/bochs.c
+++ b/drivers/video/bochs.c
@@ -64,6 +64,7 @@
 	uc_priv->xsize = xsize;
 	uc_priv->ysize = ysize;
 	uc_priv->bpix = VIDEO_BPP32;
+	uc_priv->format = VIDEO_X8B8G8R8;
 
 	/* setup video mode */
 	bochs_write(mmio, INDEX_ENABLE,  0);
diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c
index a5b3e89..ff4f219 100644
--- a/drivers/video/video-uclass.c
+++ b/drivers/video/video-uclass.c
@@ -589,6 +589,7 @@
 		ho->ysize = priv->ysize;
 		ho->line_length = priv->line_length;
 		ho->bpix = priv->bpix;
+		ho->format = priv->format;
 	}
 
 	if (IS_ENABLED(CONFIG_VIDEO_COPY) && plat->copy_base)
diff --git a/include/video.h b/include/video.h
index 4ec71ab..a1f7fd7 100644
--- a/include/video.h
+++ b/include/video.h
@@ -150,6 +150,7 @@
  *		set by the driver, but if not, the uclass will set it after
  *		probing
  * @bpix:	Encoded bits per pixel (enum video_log2_bpp)
+ * @format:	Video format (enum video_format)
  */
 struct video_handoff {
 	u64 fb;
@@ -158,6 +159,7 @@
 	u16 ysize;
 	u32 line_length;
 	u8 bpix;
+	u8 format;
 };
 
 /** enum colour_idx - the 16 colors supported by consoles */