Messages in this thread Patch in this message | | | From | Xiubo Li <> | Subject | [PATCHv2 3/3] ASoC: core: Fix check before setting default I/O up try regmap | Date | Fri, 28 Feb 2014 17:04:27 +0800 |
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Same with 'ASoC: core: Fix check before defaulting to regmap':
(Check if the chip has provided a write operation (which is mandatory for I/O) rather than looking for control data as some of the MFDs use a global for this. Also skip the attempt if there's no regmap available by device in case things get confused by the attempt to default.)
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> --- sound/soc/soc-core.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 6880fad..a14155b 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1137,9 +1137,15 @@ static int soc_probe_codec(struct snd_soc_card *card, codec->dapm.idle_bias_off = driver->idle_bias_off; - /* Set the default I/O up try regmap */ - if (dev_get_regmap(codec->dev, NULL)) - snd_soc_codec_set_cache_io(codec, NULL); + if (!codec->write && dev_get_regmap(codec->dev, NULL)) { + /* Set the default I/O up try regmap */ + ret = snd_soc_codec_set_cache_io(codec, NULL); + if (ret < 0) { + dev_err(codec->dev, + "Failed to set cache I/O: %d\n", ret); + goto err_probe; + } + } if (driver->probe) { ret = driver->probe(codec); -- 1.8.4
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