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ASoC: wm8958: Move DSP firmware lock to driver level 

The wm8958 driver uses the snd_soc_codec mutex to protect the various
firmware pointers from concurrent assignment. This patch moves this lock to
the driver level. This will allow us to eventually remove the snd_soc_codec
mutex.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2014-11-09 17:01:02 +01:00 committed by Mark Brown
parent 78660af7ba
commit fabfad2f8b
3 changed files with 10 additions and 6 deletions
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12
sound/soc/codecs/wm8958-dsp2.c
View File

@ -867,9 +867,9 @@ static void wm8958_enh_eq_loaded(const struct firmware *fw, void *context)
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
if (fw && (wm8958_dsp2_fw(codec, "ENH_EQ", fw, true) == 0)) {
mutex_lock(&codec->mutex);
mutex_lock(&wm8994->fw_lock);
wm8994->enh_eq = fw;
mutex_unlock(&codec->mutex);
mutex_unlock(&wm8994->fw_lock);
}
}
@ -879,9 +879,9 @@ static void wm8958_mbc_vss_loaded(const struct firmware *fw, void *context)
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
if (fw && (wm8958_dsp2_fw(codec, "MBC+VSS", fw, true) == 0)) {
mutex_lock(&codec->mutex);
mutex_lock(&wm8994->fw_lock);
wm8994->mbc_vss = fw;
mutex_unlock(&codec->mutex);
mutex_unlock(&wm8994->fw_lock);
}
}
@ -891,9 +891,9 @@ static void wm8958_mbc_loaded(const struct firmware *fw, void *context)
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
if (fw && (wm8958_dsp2_fw(codec, "MBC", fw, true) == 0)) {
mutex_lock(&codec->mutex);
mutex_lock(&wm8994->fw_lock);
wm8994->mbc = fw;
mutex_unlock(&codec->mutex);
mutex_unlock(&wm8994->fw_lock);
}
}

2
sound/soc/codecs/wm8994.c
View File

@ -4457,6 +4457,8 @@ static int wm8994_probe(struct platform_device *pdev)
return -ENOMEM;
platform_set_drvdata(pdev, wm8994);
mutex_init(&wm8994->fw_lock);
wm8994->wm8994 = dev_get_drvdata(pdev->dev.parent);
pm_runtime_enable(&pdev->dev);

2
sound/soc/codecs/wm8994.h
View File

@ -13,6 +13,7 @@
#include <linux/firmware.h>
#include <linux/completion.h>
#include <linux/workqueue.h>
#include <linux/mutex.h>
#include "wm_hubs.h"
@ -156,6 +157,7 @@ struct wm8994_priv {
unsigned int aif1clk_disable:1;
unsigned int aif2clk_disable:1;
struct mutex fw_lock;
int dsp_active;
const struct firmware *cur_fw;
const struct firmware *mbc;