From 77ee09c67e051a5ebd19a53ba3945dbdc8d21b3c Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 31 Jul 2009 18:26:51 +0100 Subject: ASoC: Allow CODECs to flag invalid registers This helps CODECs with sparse register maps work better with the register cache display interface. Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'sound') diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 5eabb7117608..fb8d7a766155 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1156,6 +1156,9 @@ static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) count += sprintf(buf, "%s registers\n", codec->name); for (i = 0; i < codec->reg_cache_size; i += step) { + if (codec->readable_register && !codec->readable_register(i)) + continue; + count += sprintf(buf + count, "%2x: ", i); if (count >= PAGE_SIZE - 1) break; -- cgit v1.2.3