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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2019-04-04 09:52:52 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-04-04 14:59:09 +0700 |
| commit | 42bf029a55a9bb8036f1d738a28dba2f7ec1e79d (patch) | |
| tree | 870782068abdaec564f80eb28a9d792057e2dc5e /sound | |
| parent | c2c616021d64d952dc9d37793924ce57833d7754 (diff) | |
| download | linux-42bf029a55a9bb8036f1d738a28dba2f7ec1e79d.tar.bz2 | |
ASoC: simple-card: don't select DPCM via simple-audio-card
commit da215354eb55c ("ASoC: simple-card: merge simple-scu-card")
merged simple-scu-audio-card which can handle DPCM into
simple-audio-card.
By this patch, the judgement to select "normal sound card" or
"DPCM sound card" is based on its CPU/Codec DAI count.
But, because of it, existing "simple-audio-card" user who is
assuming "normal sound card" might select DPCM unintentionally.
To solve this issue, this patch allows "simple-audio-card" user
can select "normal sound card", and "simple-scu-audio-card" user
can select both "normal sound card" and "DPCM sound card".
This keeps compatibility collectry.
Fixes: da215354eb55c ("ASoC: simple-card: merge simple-scu-card")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/generic/simple-card.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 7147bba45a2a..34de32efc4c4 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -9,12 +9,15 @@ #include <linux/device.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/string.h> #include <sound/simple_card.h> #include <sound/soc-dai.h> #include <sound/soc.h> +#define DPCM_SELECTABLE 1 + struct simple_priv { struct snd_soc_card snd_card; struct simple_dai_props { @@ -441,6 +444,7 @@ static int simple_for_each_link(struct simple_priv *priv, struct device *dev = simple_priv_to_dev(priv); struct device_node *top = dev->of_node; struct device_node *node; + uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev); bool is_top = 0; int ret = 0; @@ -480,8 +484,9 @@ static int simple_for_each_link(struct simple_priv *priv, * if it has many CPUs, * or has convert-xxx property */ - if (num > 2 || - adata.convert_rate || adata.convert_channels) + if (dpcm_selectable && + (num > 2 || + adata.convert_rate || adata.convert_channels)) ret = func_dpcm(priv, np, codec, li, is_top); /* else normal sound */ else @@ -822,7 +827,8 @@ static int simple_remove(struct platform_device *pdev) static const struct of_device_id simple_of_match[] = { { .compatible = "simple-audio-card", }, - { .compatible = "simple-scu-audio-card", }, + { .compatible = "simple-scu-audio-card", + .data = (void *)DPCM_SELECTABLE }, {}, }; MODULE_DEVICE_TABLE(of, simple_of_match); |