[PATCH] ASoC: mediatek: add the .probe() callback in mt2701_afe_pcm_dai_component

[Ryder Lee]

For the sake of uniformity, this patch adds a callback mt2701_afe_pcm_probe()
in mt2701_afe_pcm_dai_component to retrieve the regmap - the canonical way to 
obtain the pointer..

Doing so, we could switch to use devm_snd_soc_register_component() to register
the component driver.

Signed-off-by: Ryder Lee <ryder....@mediatek.com>
---
 sound/soc/mediatek/mt2701/mt2701-afe-pcm.c | 31 ++++++++++++++----------------
 1 file changed, 14 insertions(+), 17 deletions(-)

diff --git a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c 
b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
index d6eeb4c..828d11c 100644
--- a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
+++ b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
@@ -958,7 +958,17 @@ static int mt2701_irq_fs(struct snd_pcm_substream 
*substream, unsigned int rate)
        { "O31", "I35 Switch", "I35" },
 };
 
+static int mt2701_afe_pcm_probe(struct snd_soc_component *component)
+{
+       struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
+
+       snd_soc_component_init_regmap(component, afe->regmap);
+
+       return 0;
+}
+
 static const struct snd_soc_component_driver mt2701_afe_pcm_dai_component = {
+       .probe = mt2701_afe_pcm_probe,
        .name = "mt2701-afe-pcm-dai",
        .dapm_widgets = mt2701_afe_pcm_widgets,
        .num_dapm_widgets = ARRAY_SIZE(mt2701_afe_pcm_widgets),
@@ -1316,22 +1326,6 @@ static int mt2701_afe_runtime_resume(struct device *dev)
        return mt2701_afe_enable_clock(afe);
 }
 
-static int mt2701_afe_add_component(struct mtk_base_afe *afe)
-{
-       struct snd_soc_component *component;
-
-       component = kzalloc(sizeof(*component), GFP_KERNEL);
-       if (!component)
-               return -ENOMEM;
-
-       component->regmap = afe->regmap;
-
-       return snd_soc_add_component(afe->dev, component,
-                                    &mt2701_afe_pcm_dai_component,
-                                    mt2701_afe_pcm_dais,
-                                    ARRAY_SIZE(mt2701_afe_pcm_dais));
-}
-
 static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
 {
        struct mtk_base_afe *afe;
@@ -1442,7 +1436,10 @@ static int mt2701_afe_pcm_dev_probe(struct 
platform_device *pdev)
                goto err_platform;
        }
 
-       ret = mt2701_afe_add_component(afe);
+       ret = devm_snd_soc_register_component(&pdev->dev,
+                                        &mt2701_afe_pcm_dai_component,
+                                        mt2701_afe_pcm_dais,
+                                        ARRAY_SIZE(mt2701_afe_pcm_dais));
        if (ret) {
                dev_warn(dev, "err_dai_component\n");
                goto err_platform;
-- 
1.9.1