On Mon, Feb 04, 2019 at 12:03:56AM +0800, Chen-Yu Tsai wrote:
> max_register is currently set to 0x1000. This is beyond the mapped
> address range of the hardware, so attempts to dump the regmap from
> debugfs would trigger a kernel exception.
> 
> Furthermore, the useful registers only occupy a small section at the
> beginning of the full range. Change the value to 0x9c, the last known
> register on the V3s and H3.
> 
> On the A31, the register range is extended to support additional
> capture channels. Since this is not yet supported, ignore it for now.
> 
> Fixes: 5cc7522d8965 ("media: sun6i: Add support for Allwinner CSI V3s")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>

Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>

Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com