[U-Boot] [PATCH v5 3/3] sunxi: video: Add simplefb support

[Ian Campbell <ijc@hellion.org.uk>]

On Wed, 2014-11-19 at 14:32 +0100, Hans de Goede wrote:
> From: Luc Verhaegen <libv@skynet.be>
> 
> Add simplefb support, note this depends on the kernel having support for
> the clocks property which has recently been added to the simplefb devicetree
> binding.
> 
> Signed-off-by: Luc Verhaegen <libv@skynet.be>
> [hdegoede at redhat.com: Use pre-populated simplefb node under /chosen as
>  disussed on the devicetree list]
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Acked-by: Ian Campbell <ijc@hellion.org.uk>.

One non-blocking queries:

> +	/* Find a framebuffer node, with pipeline == "de_be0-lcd0-hdmi" */
> +	offset = fdt_node_offset_by_compatible(blob, -1,
> +					       "allwinner,simple-framebuffer");
> +	while (offset >= 0) {
> +		ret = fdt_find_string(blob, offset, "allwinner,pipeline",
> +				      "de_be0-lcd0-hdmi");
> +		if (ret == 0)
> +			break;
> +		offset = fdt_node_offset_by_compatible(blob, offset,
> +					       "allwinner,simple-framebuffer");
> +	}

Is this variant non-conformant with coding style?:

	int offset = -1;
	while ( (offset = fdt_node_offset_by_compatible(blob, offset,
                                                        "allwinner,simple-framebuffer") ) {
		LOOP BODY
	}

I expect it is because of the assignment within the while condition,
which is a shame, since this is one case where it is IMHO leads to
clearer code.