diff options
| author | Mark Brown <broonie@linaro.org> | 2013-06-26 12:45:59 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-06-27 09:48:42 +0100 |
| commit | b047e1cce8fe32475ab61846772943a5e4c0a908 (patch) | |
| tree | 9d04d8101d161b96f96c2e2e5bd03900011828ec /sound/soc/tegra | |
| parent | b49dff8cb61cd4715991612e2eb6905b73a0be78 (diff) | |
| download | lwn-b047e1cce8fe32475ab61846772943a5e4c0a908.tar.gz lwn-b047e1cce8fe32475ab61846772943a5e4c0a908.zip | |
ASoC: ac97: Support multi-platform AC'97
Currently we can only have a single platform built in with AC'97 support
due to the use of a global variable to provide the bus operations. Fix
this by making that variable a pointer and having the bus drivers set the
operations prior to registering.
This is not a particularly good or nice approach but it avoids blocking
multiplatform and a real fix involves fixing the fairly deep problems
with AC'97 support - we should be converting it to a real bus.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/tegra')
| -rw-r--r-- | sound/soc/tegra/tegra20_ac97.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/sound/soc/tegra/tegra20_ac97.c b/sound/soc/tegra/tegra20_ac97.c index 48037f784a86..f52eab6d2231 100644 --- a/sound/soc/tegra/tegra20_ac97.c +++ b/sound/soc/tegra/tegra20_ac97.c @@ -142,13 +142,12 @@ static void tegra20_ac97_codec_write(struct snd_ac97 *ac97_snd, } while (!time_after(jiffies, timeout)); } -struct snd_ac97_bus_ops soc_ac97_ops = { +static struct snd_ac97_bus_ops tegra20_ac97_ops = { .read = tegra20_ac97_codec_read, .write = tegra20_ac97_codec_write, .reset = tegra20_ac97_codec_reset, .warm_reset = tegra20_ac97_codec_warm_reset, }; -EXPORT_SYMBOL_GPL(soc_ac97_ops); static inline void tegra20_ac97_start_playback(struct tegra20_ac97 *ac97) { @@ -409,6 +408,12 @@ static int tegra20_ac97_platform_probe(struct platform_device *pdev) goto err_asoc_utils_fini; } + ret = snd_soc_set_ac97_ops(&tegra20_ac97_ops); + if (ret) { + dev_err(&pdev->dev, "Failed to set AC'97 ops: %d\n", ret); + goto err_asoc_utils_fini; + } + ret = snd_soc_register_component(&pdev->dev, &tegra20_ac97_component, &tegra20_ac97_dai, 1); if (ret) { @@ -436,6 +441,7 @@ err_asoc_utils_fini: tegra_asoc_utils_fini(&ac97->util_data); err_clk_put: err: + snd_soc_set_ac97_ops(NULL); return ret; } @@ -450,6 +456,8 @@ static int tegra20_ac97_platform_remove(struct platform_device *pdev) clk_disable_unprepare(ac97->clk_ac97); + snd_soc_set_ac97_ops(NULL); + return 0; } |