From b7c95d9146c8201740e2ce9dca7fb1eb8b7b0053 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 9 Jun 2012 10:15:10 +0800 Subject: [PATCH] ASoC: wm8903: Move interrupt request to I2C probe There's no reason to defer requesting of the interrupt until the CODEC probe and doing so results in more work if we hit an error as we'll have registered the CODEC with the core. It's neater to acquire as many of the resources we'll need as we can in the bus probe function. Signed-off-by: Mark Brown Tested-by: Stephen Warren --- sound/soc/codecs/wm8903.c | 65 +++++++++++++++++++-------------------- 1 file changed, 31 insertions(+), 34 deletions(-) diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c index f5d47c8e540..7261a68aac6 100644 --- a/sound/soc/codecs/wm8903.c +++ b/sound/soc/codecs/wm8903.c @@ -1895,9 +1895,7 @@ static void wm8903_free_gpio(struct wm8903_priv *wm8903) static int wm8903_probe(struct snd_soc_codec *codec) { struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); - struct wm8903_platform_data *pdata = wm8903->pdata; int ret; - int trigger, irq_pol; u16 val; wm8903->codec = codec; @@ -1909,32 +1907,6 @@ static int wm8903_probe(struct snd_soc_codec *codec) return ret; } - if (wm8903->irq) { - if (pdata->irq_active_low) { - trigger = IRQF_TRIGGER_LOW; - irq_pol = WM8903_IRQ_POL; - } else { - trigger = IRQF_TRIGGER_HIGH; - irq_pol = 0; - } - - snd_soc_update_bits(codec, WM8903_INTERRUPT_CONTROL, - WM8903_IRQ_POL, irq_pol); - - ret = request_threaded_irq(wm8903->irq, NULL, wm8903_irq, - trigger | IRQF_ONESHOT, - "wm8903", wm8903); - if (ret != 0) { - dev_err(codec->dev, "Failed to request IRQ: %d\n", - ret); - return ret; - } - - /* Enable write sequencer interrupts */ - snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK, - WM8903_IM_WSEQ_BUSY_EINT, 0); - } - /* power on device */ wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY); @@ -1975,11 +1947,7 @@ static int wm8903_probe(struct snd_soc_codec *codec) /* power down chip */ static int wm8903_remove(struct snd_soc_codec *codec) { - struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); - wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF); - if (wm8903->irq) - free_irq(wm8903->irq, wm8903); return 0; } @@ -2089,8 +2057,9 @@ static __devinit int wm8903_i2c_probe(struct i2c_client *i2c, { struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev); struct wm8903_priv *wm8903; + int trigger; bool mic_gpio = false; - unsigned int val; + unsigned int val, irq_pol; int ret, i; wm8903 = devm_kzalloc(&i2c->dev, sizeof(struct wm8903_priv), @@ -2108,7 +2077,6 @@ static __devinit int wm8903_i2c_probe(struct i2c_client *i2c, } i2c_set_clientdata(i2c, wm8903); - wm8903->irq = i2c->irq; /* If no platform data was supplied, create storage for defaults */ if (pdata) { @@ -2202,6 +2170,33 @@ static __devinit int wm8903_i2c_probe(struct i2c_client *i2c, wm8903->mic_delay = pdata->micdet_delay; + if (i2c->irq) { + if (pdata->irq_active_low) { + trigger = IRQF_TRIGGER_LOW; + irq_pol = WM8903_IRQ_POL; + } else { + trigger = IRQF_TRIGGER_HIGH; + irq_pol = 0; + } + + regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_CONTROL, + WM8903_IRQ_POL, irq_pol); + + ret = request_threaded_irq(i2c->irq, NULL, wm8903_irq, + trigger | IRQF_ONESHOT, + "wm8903", wm8903); + if (ret != 0) { + dev_err(wm8903->dev, "Failed to request IRQ: %d\n", + ret); + return ret; + } + + /* Enable write sequencer interrupts */ + regmap_update_bits(wm8903->regmap, + WM8903_INTERRUPT_STATUS_1_MASK, + WM8903_IM_WSEQ_BUSY_EINT, 0); + } + ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8903, &wm8903_dai, 1); if (ret != 0) @@ -2216,6 +2211,8 @@ static __devexit int wm8903_i2c_remove(struct i2c_client *client) { struct wm8903_priv *wm8903 = i2c_get_clientdata(client); + if (client->irq) + free_irq(client->irq, wm8903); wm8903_free_gpio(wm8903); snd_soc_unregister_codec(&client->dev);