Add faster mode for the Librem 5

config/purism,librem5.conf

@@ -21,6 +21,18 @@ Rear: {
                 {Type: "Mode", Entity: "csi"},
             );
         },
+        {
+            Width: 1052;
+            Height: 780;
+            Rate: 30;
+            Format: "GRBG8";
+            Rotate: 270;
+            Pipeline: (
+                {Type: "Mode", Entity: "s5k3l6xx"},
+                {Type: "Mode", Entity: "imx8mq-mipi-csi2"},
+                {Type: "Mode", Entity: "csi"},
+            );
+        },
     );
 };
 

src/mode.c

@@ -274,6 +274,9 @@ libmegapixels_mode_width_to_bytes(int index, uint32_t width)
 uint32_t
 libmegapixels_mode_width_to_padding(int index, uint32_t width)
 {
+	if (mode_lut[index].bpp == 8) {
+		return 0;
+	}
 	uint64_t bytes_per_width = libmegapixels_mode_width_to_bytes(index, width);
 	uint64_t remainder = bytes_per_width % 8;
 	if (remainder == 0)