At Thu, 9 Aug 2012 16:47:29 +0100, Lee Jones wrote:
If codec->control_data is not populated SoC Core assumes we want to use regmap, which fails catastrophically, as we don't have one:
Unable to handle kernel NULL pointer dereference at virtual address 00000080 pgd = c0004000 [00000080] *pgd=00000000 Internal error: Oops: 17 [#1] PREEMPT SMP ARM Modules linked in: CPU: 1 Not tainted (3.5.0-rc6-00884-g0b2419e-dirty #130) PC is at regmap_read+0x10/0x5c LR is at hw_read+0x80/0x90 pc : [<c01a91b8>] lr : [<c0216804>] psr: 60000013
CC: alsa-devel@alsa-project.org Signed-off-by: Lee Jones lee.jones@linaro.org
This was already fixed in ASoC core on Linus tree...
Takashi
sound/soc/codecs/ab8500-codec.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c index 3c79592..23b4018 100644 --- a/sound/soc/codecs/ab8500-codec.c +++ b/sound/soc/codecs/ab8500-codec.c @@ -2406,6 +2406,10 @@ static int ab8500_codec_probe(struct snd_soc_codec *codec)
/* Setup AB8500 according to board-settings */ pdata = (struct ab8500_platform_data *)dev_get_platdata(dev->parent);
- /* Inform SoC Core that we have our own I/O arrangements. */
- codec->control_data = (void *)true;
- status = ab8500_audio_setup_mics(codec, &pdata->codec->amics); if (status < 0) { pr_err("%s: Failed to setup mics (%d)!\n", __func__, status);
-- 1.7.9.5
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