Use snd_soc_codec_readable_register instead of open-coding it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
                step = codec->driver->reg_cache_step;
 
        for (i = 0; i < codec->driver->reg_cache_size; i += step) {
-               if (codec->readable_register && !codec->readable_register(codec, i))
+               if (!snd_soc_codec_readable_register(codec, i))
                        continue;
                if (codec->driver->display_register) {
                        count += codec->driver->display_register(codec, buf + count,