Re: [PATCH 1/2] ARM S3C2410 framebuffer driver

Arnaud Patard (Rtp) wrote:

"Antonino A. Daplas" [off-list ref] writes:

I noticed one more thing:

+	if (var->bits_per_pixel == 16) {
+		var->red.offset		= 11;
+		var->green.offset	= 5;
+		var->blue.offset	= 0;
+		var->red.length		= 5;
+		var->green.length	= 6;
+		var->blue.length	= 5;
+		var->transp.length	= 0;
+	} else {
+		var->red.length		= 8;
+		var->red.offset		= 0;
+		var->green.length	= 8;
+		var->green.offset	= 0;
+		var->blue.length	= 8;
+		var->blue.offset	= 0;
+		var->transp.length	= 0;
+	}

Your driver supports bits_per_pixel of 1, 2, 4 and 8. It will
be more correct if you do the above like this:

		var->red.length		= var->bits_per_pixel;
		var->red.offset		= 0;
		var->green.length	= var->bits_per_pixel;
		var->green.offset	= 0;
		var->blue.length	= var->bits_per_pixel;
		var->blue.offset	= 0;

Otherwise, your driver will get wrong colors at bpp of 1 and 2
with fbcon.

If you believe the above is correct, I'll do the correction in
my tree and you need not send a patch.

Tony


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