Merge branch 'for-2.6.30' of... (f1464ede) · Commits · 戴 / test

sound/soc/codecs/Kconfig

+0 −6

Original line number	Diff line number	Diff line
		@@ -67,12 +67,6 @@ config SND_SOC_AK4535
		config SND_SOC_CS4270
		tristate

		# Cirrus Logic CS4270 Codec Hardware Mute Support
		# Select if you have external muting circuitry attached to your CS4270.
		config SND_SOC_CS4270_HWMUTE
		bool
		depends on SND_SOC_CS4270

		# Cirrus Logic CS4270 Codec VD = 3.3V Errata
		# Select if you are affected by the errata where the part will not function
		# if MCLK divide-by-1.5 is selected and VD is set to 3.3V. The driver will

sound/soc/codecs/cs4270.c

+40 −53

Original line number	Diff line number	Diff line
		@@ -395,17 +395,7 @@ static int cs4270_hw_params(struct snd_pcm_substream *substream,
		return -EINVAL;
		}

		/* Freeze and power-down the codec */

		ret = snd_soc_write(codec, CS4270_PWRCTL, CS4270_PWRCTL_FREEZE \|
		CS4270_PWRCTL_PDN_ADC \| CS4270_PWRCTL_PDN_DAC \|
		CS4270_PWRCTL_PDN);
		if (ret < 0) {
		dev_err(codec->dev, "i2c write failed\n");
		return ret;
		}

		/* Program the mode control register */
		/* Set the sample rate */

		reg = snd_soc_read(codec, CS4270_MODE);
		reg &= ~(CS4270_MODE_SPEED_MASK \| CS4270_MODE_DIV_MASK);
		@@ -417,7 +407,7 @@ static int cs4270_hw_params(struct snd_pcm_substream *substream,
		return ret;
		}

		/* Program the format register */
		/* Set the DAI format */

		reg = snd_soc_read(codec, CS4270_FORMAT);
		reg &= ~(CS4270_FORMAT_DAC_MASK \| CS4270_FORMAT_ADC_MASK);
		@@ -440,42 +430,9 @@ static int cs4270_hw_params(struct snd_pcm_substream *substream,
		return ret;
		}

		/* Disable auto-mute. This feature appears to be buggy, because in
		some situations, auto-mute will not deactivate when it should. */

		reg = snd_soc_read(codec, CS4270_MUTE);
		reg &= ~CS4270_MUTE_AUTO;
		ret = snd_soc_write(codec, CS4270_MUTE, reg);
		if (ret < 0) {
		dev_err(codec->dev, "i2c write failed\n");
		return ret;
		}

		/* Disable automatic volume control. It's enabled by default, and
		* it causes volume change commands to be delayed, sometimes until
		* after playback has started.
		*/

		reg = cs4270_read_reg_cache(codec, CS4270_TRANS);
		reg &= ~(CS4270_TRANS_SOFT \| CS4270_TRANS_ZERO);
		ret = cs4270_i2c_write(codec, CS4270_TRANS, reg);
		if (ret < 0) {
		dev_err(codec->dev, "i2c write failed\n");
		return ret;
		}

		/* Thaw and power-up the codec */

		ret = snd_soc_write(codec, CS4270_PWRCTL, 0);
		if (ret < 0) {
		dev_err(codec->dev, "i2c write failed\n");
		return ret;
		}

		return ret;
		}

		#ifdef CONFIG_SND_SOC_CS4270_HWMUTE
		/**
		* cs4270_mute - enable/disable the CS4270 external mute
		* @dai: the SOC DAI
		@@ -494,22 +451,23 @@ static int cs4270_mute(struct snd_soc_dai *dai, int mute)
		reg6 = snd_soc_read(codec, CS4270_MUTE);

		if (mute)
		reg6 \|= CS4270_MUTE_ADC_A \| CS4270_MUTE_ADC_B \|
		CS4270_MUTE_DAC_A \| CS4270_MUTE_DAC_B;
		reg6 \|= CS4270_MUTE_DAC_A \| CS4270_MUTE_DAC_B;
		else
		reg6 &= ~(CS4270_MUTE_ADC_A \| CS4270_MUTE_ADC_B \|
		CS4270_MUTE_DAC_A \| CS4270_MUTE_DAC_B);
		reg6 &= ~(CS4270_MUTE_DAC_A \| CS4270_MUTE_DAC_B);

		return snd_soc_write(codec, CS4270_MUTE, reg6);
		}
		#else
		#define cs4270_mute NULL
		#endif

		/* A list of non-DAPM controls that the CS4270 supports */
		static const struct snd_kcontrol_new cs4270_snd_controls[] = {
		SOC_DOUBLE_R("Master Playback Volume",
		CS4270_VOLA, CS4270_VOLB, 0, 0xFF, 1)
		CS4270_VOLA, CS4270_VOLB, 0, 0xFF, 1),
		SOC_SINGLE("Digital Sidetone Switch", CS4270_FORMAT, 5, 1, 0),
		SOC_SINGLE("Soft Ramp Switch", CS4270_TRANS, 6, 1, 0),
		SOC_SINGLE("Zero Cross Switch", CS4270_TRANS, 5, 1, 0),
		SOC_SINGLE("Popguard Switch", CS4270_MODE, 0, 1, 1),
		SOC_SINGLE("Auto-Mute Switch", CS4270_MUTE, 5, 1, 0),
		SOC_DOUBLE("Master Capture Switch", CS4270_MUTE, 3, 4, 1, 0)
		};

		/*
		@@ -637,6 +595,7 @@ static int cs4270_i2c_probe(struct i2c_client *i2c_client,
		{
		struct snd_soc_codec *codec;
		struct cs4270_private *cs4270;
		unsigned int reg;
		int ret;

		/* For now, we only support one cs4270 device in the system. See the
		@@ -702,6 +661,34 @@ static int cs4270_i2c_probe(struct i2c_client *i2c_client,
		goto error_free_codec;
		}

		/* Disable auto-mute. This feature appears to be buggy. In some
		* situations, auto-mute will not deactivate when it should, so we want
		* this feature disabled by default. An application (e.g. alsactl) can
		* re-enabled it by using the controls.
		*/

		reg = cs4270_read_reg_cache(codec, CS4270_MUTE);
		reg &= ~CS4270_MUTE_AUTO;
		ret = cs4270_i2c_write(codec, CS4270_MUTE, reg);
		if (ret < 0) {
		dev_err(&i2c_client->dev, "i2c write failed\n");
		return ret;
		}

		/* Disable automatic volume control. The hardware enables, and it
		* causes volume change commands to be delayed, sometimes until after
		* playback has started. An application (e.g. alsactl) can
		* re-enabled it by using the controls.
		*/

		reg = cs4270_read_reg_cache(codec, CS4270_TRANS);
		reg &= ~(CS4270_TRANS_SOFT \| CS4270_TRANS_ZERO);
		ret = cs4270_i2c_write(codec, CS4270_TRANS, reg);
		if (ret < 0) {
		dev_err(&i2c_client->dev, "i2c write failed\n");
		return ret;
		}

		/* Initialize the DAI. Normally, we'd prefer to have a kmalloc'd DAI
		* structure for each CS4270 device, but the machine driver needs to
		* have a pointer to the DAI structure, so for now it must be a global

sound/soc/soc-core.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -1382,7 +1382,10 @@ int snd_soc_init_card(struct snd_soc_device *socdev)

		mutex_lock(&codec->mutex);
		#ifdef CONFIG_SND_SOC_AC97_BUS
		if (ac97) {
		/* Only instantiate AC97 if not already done by the adaptor
		* for the generic AC97 subsystem.
		*/
		if (ac97 && strcmp(codec->name, "AC97") != 0) {
		ret = soc_ac97_dev_register(codec);
		if (ret < 0) {
		printk(KERN_ERR "asoc: AC97 device register failed\n");

Admin message