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Commit fed25395 authored by Mark Brown's avatar Mark Brown
Browse files

Merge remote-tracking branches 'asoc/topic/davinci', 'asoc/topic/doc',... 

Merge remote-tracking branches 'asoc/topic/davinci', 'asoc/topic/doc', 'asoc/topic/dpcm', 'asoc/topic/dwc' and 'asoc/topic/fsi' into asoc-next
parents b39af5b3 c117b4a3 bb29a93b 075207d2 b163be4c e98c89e0

Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt

+1 −1
Original line number Diff line number Diff line
@@ -32,7 +32,7 @@ Optional properties: 
- rx-num-evt : FIFO levels.

- sram-size-playback : size of sram to be allocated during playback

- sram-size-capture  : size of sram to be allocated during capture

- interrupts : Interrupt numbers for McASP, currently not used by the driver

- interrupts : Interrupt numbers for McASP

- interrupt-names : Known interrupt names are "tx" and "rx"

- pinctrl-0: Should specify pin control group used for this controller.

- pinctrl-names: Should contain only one value - "default", for more details

sound/soc/davinci/davinci-mcasp.c

+236 −26
Original line number Diff line number Diff line
@@ -70,6 +70,7 @@ struct davinci_mcasp { 
	void __iomem *base;

	u32 fifo_base;

	struct device *dev;

	struct snd_pcm_substream *substreams[2];



	/* McASP specific data */

	int	tdm_slots;
@@ -80,6 +81,7 @@ struct davinci_mcasp { 
	u8	bclk_div;

	u16	bclk_lrclk_ratio;

	int	streams;

	u32	irq_request[2];



	int	sysclk_freq;

	bool	bclk_master;
@@ -90,6 +92,9 @@ struct davinci_mcasp { 


	bool	dat_port;



	/* Used for comstraint setting on the second stream */

	u32	channels;



#ifdef CONFIG_PM_SLEEP

	struct davinci_mcasp_context context;

#endif
@@ -154,6 +159,13 @@ static bool mcasp_is_synchronous(struct davinci_mcasp *mcasp) 


static void mcasp_start_rx(struct davinci_mcasp *mcasp)

{

	if (mcasp->rxnumevt) {	/* enable FIFO */

		u32 reg = mcasp->fifo_base + MCASP_RFIFOCTL_OFFSET;



		mcasp_clr_bits(mcasp, reg, FIFO_ENABLE);

		mcasp_set_bits(mcasp, reg, FIFO_ENABLE);

	}



	/* Start clocks */

	mcasp_set_ctl_reg(mcasp, DAVINCI_MCASP_GBLCTLR_REG, RXHCLKRST);

	mcasp_set_ctl_reg(mcasp, DAVINCI_MCASP_GBLCTLR_REG, RXCLKRST);
@@ -175,12 +187,23 @@ static void mcasp_start_rx(struct davinci_mcasp *mcasp) 
	mcasp_set_ctl_reg(mcasp, DAVINCI_MCASP_GBLCTLR_REG, RXFSRST);

	if (mcasp_is_synchronous(mcasp))

		mcasp_set_ctl_reg(mcasp, DAVINCI_MCASP_GBLCTLX_REG, TXFSRST);



	/* enable receive IRQs */

	mcasp_set_bits(mcasp, DAVINCI_MCASP_EVTCTLR_REG,

		       mcasp->irq_request[SNDRV_PCM_STREAM_CAPTURE]);

}



static void mcasp_start_tx(struct davinci_mcasp *mcasp)

{

	u32 cnt;



	if (mcasp->txnumevt) {	/* enable FIFO */

		u32 reg = mcasp->fifo_base + MCASP_WFIFOCTL_OFFSET;



		mcasp_clr_bits(mcasp, reg, FIFO_ENABLE);

		mcasp_set_bits(mcasp, reg, FIFO_ENABLE);

	}



	/* Start clocks */

	mcasp_set_ctl_reg(mcasp, DAVINCI_MCASP_GBLCTLX_REG, TXHCLKRST);

	mcasp_set_ctl_reg(mcasp, DAVINCI_MCASP_GBLCTLX_REG, TXCLKRST);
@@ -197,33 +220,28 @@ static void mcasp_start_tx(struct davinci_mcasp *mcasp) 
	mcasp_set_ctl_reg(mcasp, DAVINCI_MCASP_GBLCTLX_REG, TXSMRST);

	/* Release Frame Sync generator */

	mcasp_set_ctl_reg(mcasp, DAVINCI_MCASP_GBLCTLX_REG, TXFSRST);



	/* enable transmit IRQs */

	mcasp_set_bits(mcasp, DAVINCI_MCASP_EVTCTLX_REG,

		       mcasp->irq_request[SNDRV_PCM_STREAM_PLAYBACK]);

}



static void davinci_mcasp_start(struct davinci_mcasp *mcasp, int stream)

{

	u32 reg;



	mcasp->streams++;



	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {

		if (mcasp->txnumevt) {	/* enable FIFO */

			reg = mcasp->fifo_base + MCASP_WFIFOCTL_OFFSET;

			mcasp_clr_bits(mcasp, reg, FIFO_ENABLE);

			mcasp_set_bits(mcasp, reg, FIFO_ENABLE);

		}

	if (stream == SNDRV_PCM_STREAM_PLAYBACK)

		mcasp_start_tx(mcasp);

	} else {

		if (mcasp->rxnumevt) {	/* enable FIFO */

			reg = mcasp->fifo_base + MCASP_RFIFOCTL_OFFSET;

			mcasp_clr_bits(mcasp, reg, FIFO_ENABLE);

			mcasp_set_bits(mcasp, reg, FIFO_ENABLE);

		}

	else

		mcasp_start_rx(mcasp);

}

}



static void mcasp_stop_rx(struct davinci_mcasp *mcasp)

{

	/* disable IRQ sources */

	mcasp_clr_bits(mcasp, DAVINCI_MCASP_EVTCTLR_REG,

		       mcasp->irq_request[SNDRV_PCM_STREAM_CAPTURE]);



	/*

	 * In synchronous mode stop the TX clocks if no other stream is

	 * running
@@ -245,6 +263,10 @@ static void mcasp_stop_tx(struct davinci_mcasp *mcasp) 
{

	u32 val = 0;



	/* disable IRQ sources */

	mcasp_clr_bits(mcasp, DAVINCI_MCASP_EVTCTLX_REG,

		       mcasp->irq_request[SNDRV_PCM_STREAM_PLAYBACK]);



	/*

	 * In synchronous mode keep TX clocks running if the capture stream is

	 * still running.
@@ -272,6 +294,76 @@ static void davinci_mcasp_stop(struct davinci_mcasp *mcasp, int stream) 
		mcasp_stop_rx(mcasp);

}



static irqreturn_t davinci_mcasp_tx_irq_handler(int irq, void *data)

{

	struct davinci_mcasp *mcasp = (struct davinci_mcasp *)data;

	struct snd_pcm_substream *substream;

	u32 irq_mask = mcasp->irq_request[SNDRV_PCM_STREAM_PLAYBACK];

	u32 handled_mask = 0;

	u32 stat;



	stat = mcasp_get_reg(mcasp, DAVINCI_MCASP_TXSTAT_REG);

	if (stat & XUNDRN & irq_mask) {

		dev_warn(mcasp->dev, "Transmit buffer underflow\n");

		handled_mask |= XUNDRN;



		substream = mcasp->substreams[SNDRV_PCM_STREAM_PLAYBACK];

		if (substream) {

			snd_pcm_stream_lock_irq(substream);

			if (snd_pcm_running(substream))

				snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);

			snd_pcm_stream_unlock_irq(substream);

		}

	}



	if (!handled_mask)

		dev_warn(mcasp->dev, "unhandled tx event. txstat: 0x%08x\n",

			 stat);



	if (stat & XRERR)

		handled_mask |= XRERR;



	/* Ack the handled event only */

	mcasp_set_reg(mcasp, DAVINCI_MCASP_TXSTAT_REG, handled_mask);



	return IRQ_RETVAL(handled_mask);

}



static irqreturn_t davinci_mcasp_rx_irq_handler(int irq, void *data)

{

	struct davinci_mcasp *mcasp = (struct davinci_mcasp *)data;

	struct snd_pcm_substream *substream;

	u32 irq_mask = mcasp->irq_request[SNDRV_PCM_STREAM_CAPTURE];

	u32 handled_mask = 0;

	u32 stat;



	stat = mcasp_get_reg(mcasp, DAVINCI_MCASP_RXSTAT_REG);

	if (stat & ROVRN & irq_mask) {

		dev_warn(mcasp->dev, "Receive buffer overflow\n");

		handled_mask |= ROVRN;



		substream = mcasp->substreams[SNDRV_PCM_STREAM_CAPTURE];

		if (substream) {

			snd_pcm_stream_lock_irq(substream);

			if (snd_pcm_running(substream))

				snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);

			snd_pcm_stream_unlock_irq(substream);

		}

	}



	if (!handled_mask)

		dev_warn(mcasp->dev, "unhandled rx event. rxstat: 0x%08x\n",

			 stat);



	if (stat & XRERR)

		handled_mask |= XRERR;



	/* Ack the handled event only */

	mcasp_set_reg(mcasp, DAVINCI_MCASP_RXSTAT_REG, handled_mask);



	return IRQ_RETVAL(handled_mask);

}



static int davinci_mcasp_set_dai_fmt(struct snd_soc_dai *cpu_dai,

					 unsigned int fmt)

{
@@ -634,19 +726,29 @@ static int mcasp_common_hw_param(struct davinci_mcasp *mcasp, int stream, 
	return 0;

}



static int mcasp_i2s_hw_param(struct davinci_mcasp *mcasp, int stream)

static int mcasp_i2s_hw_param(struct davinci_mcasp *mcasp, int stream,

			      int channels)

{

	int i, active_slots;

	int total_slots;

	int active_serializers;

	u32 mask = 0;

	u32 busel = 0;



	if ((mcasp->tdm_slots < 2) || (mcasp->tdm_slots > 32)) {

		dev_err(mcasp->dev, "tdm slot %d not supported\n",

			mcasp->tdm_slots);

		return -EINVAL;

	}

	total_slots = mcasp->tdm_slots;



	/*

	 * If more than one serializer is needed, then use them with

	 * their specified tdm_slots count. Otherwise, one serializer

	 * can cope with the transaction using as many slots as channels

	 * in the stream, requires channels symmetry

	 */

	active_serializers = (channels + total_slots - 1) / total_slots;

	if (active_serializers == 1)

		active_slots = channels;

	else

		active_slots = total_slots;



	active_slots = (mcasp->tdm_slots > 31) ? 32 : mcasp->tdm_slots;

	for (i = 0; i < active_slots; i++)

		mask |= (1 << i);
@@ -658,12 +760,12 @@ static int mcasp_i2s_hw_param(struct davinci_mcasp *mcasp, int stream) 
	mcasp_set_reg(mcasp, DAVINCI_MCASP_TXTDM_REG, mask);

	mcasp_set_bits(mcasp, DAVINCI_MCASP_TXFMT_REG, busel | TXORD);

	mcasp_mod_bits(mcasp, DAVINCI_MCASP_TXFMCTL_REG,

		       FSXMOD(mcasp->tdm_slots), FSXMOD(0x1FF));

		       FSXMOD(total_slots), FSXMOD(0x1FF));



	mcasp_set_reg(mcasp, DAVINCI_MCASP_RXTDM_REG, mask);

	mcasp_set_bits(mcasp, DAVINCI_MCASP_RXFMT_REG, busel | RXORD);

	mcasp_mod_bits(mcasp, DAVINCI_MCASP_RXFMCTL_REG,

		       FSRMOD(mcasp->tdm_slots), FSRMOD(0x1FF));

		       FSRMOD(total_slots), FSRMOD(0x1FF));



	return 0;

}
@@ -777,7 +879,8 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream, 
	if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE)

		ret = mcasp_dit_hw_param(mcasp, params_rate(params));

	else

		ret = mcasp_i2s_hw_param(mcasp, substream->stream);

		ret = mcasp_i2s_hw_param(mcasp, substream->stream,

					 channels);



	if (ret)

		return ret;
@@ -825,6 +928,9 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream, 


	davinci_config_channel_size(mcasp, word_length);



	if (mcasp->op_mode == DAVINCI_MCASP_IIS_MODE)

		mcasp->channels = channels;



	return 0;

}
@@ -853,7 +959,65 @@ static int davinci_mcasp_trigger(struct snd_pcm_substream *substream, 
	return ret;

}



static int davinci_mcasp_startup(struct snd_pcm_substream *substream,

				 struct snd_soc_dai *cpu_dai)

{

	struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(cpu_dai);

	u32 max_channels = 0;

	int i, dir;



	mcasp->substreams[substream->stream] = substream;



	if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE)

		return 0;



	/*

	 * Limit the maximum allowed channels for the first stream:

	 * number of serializers for the direction * tdm slots per serializer

	 */

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)

		dir = TX_MODE;

	else

		dir = RX_MODE;



	for (i = 0; i < mcasp->num_serializer; i++) {

		if (mcasp->serial_dir[i] == dir)

			max_channels++;

	}

	max_channels *= mcasp->tdm_slots;

	/*

	 * If the already active stream has less channels than the calculated

	 * limnit based on the seirializers * tdm_slots, we need to use that as

	 * a constraint for the second stream.

	 * Otherwise (first stream or less allowed channels) we use the

	 * calculated constraint.

	 */

	if (mcasp->channels && mcasp->channels < max_channels)

		max_channels = mcasp->channels;



	snd_pcm_hw_constraint_minmax(substream->runtime,

				     SNDRV_PCM_HW_PARAM_CHANNELS,

				     2, max_channels);

	return 0;

}



static void davinci_mcasp_shutdown(struct snd_pcm_substream *substream,

				   struct snd_soc_dai *cpu_dai)

{

	struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(cpu_dai);



	mcasp->substreams[substream->stream] = NULL;



	if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE)

		return;



	if (!cpu_dai->active)

		mcasp->channels = 0;

}



static const struct snd_soc_dai_ops davinci_mcasp_dai_ops = {

	.startup	= davinci_mcasp_startup,

	.shutdown	= davinci_mcasp_shutdown,

	.trigger	= davinci_mcasp_trigger,

	.hw_params	= davinci_mcasp_hw_params,

	.set_fmt	= davinci_mcasp_set_dai_fmt,
@@ -1194,6 +1358,8 @@ static int davinci_mcasp_probe(struct platform_device *pdev) 
	struct resource *mem, *ioarea, *res, *dat;

	struct davinci_mcasp_pdata *pdata;

	struct davinci_mcasp *mcasp;

	char *irq_name;

	int irq;

	int ret;



	if (!pdev->dev.platform_data && !pdev->dev.of_node) {
@@ -1247,7 +1413,21 @@ static int davinci_mcasp_probe(struct platform_device *pdev) 
	}



	mcasp->op_mode = pdata->op_mode;

	/* sanity check for tdm slots parameter */

	if (mcasp->op_mode == DAVINCI_MCASP_IIS_MODE) {

		if (pdata->tdm_slots < 2) {

			dev_err(&pdev->dev, "invalid tdm slots: %d\n",

				pdata->tdm_slots);

			mcasp->tdm_slots = 2;

		} else if (pdata->tdm_slots > 32) {

			dev_err(&pdev->dev, "invalid tdm slots: %d\n",

				pdata->tdm_slots);

			mcasp->tdm_slots = 32;

		} else {

			mcasp->tdm_slots = pdata->tdm_slots;

		}

	}



	mcasp->num_serializer = pdata->num_serializer;

#ifdef CONFIG_PM_SLEEP

	mcasp->context.xrsr_regs = devm_kzalloc(&pdev->dev,
@@ -1261,6 +1441,36 @@ static int davinci_mcasp_probe(struct platform_device *pdev) 


	mcasp->dev = &pdev->dev;



	irq = platform_get_irq_byname(pdev, "rx");

	if (irq >= 0) {

		irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s_rx\n",

					  dev_name(&pdev->dev));

		ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,

						davinci_mcasp_rx_irq_handler,

						IRQF_ONESHOT, irq_name, mcasp);

		if (ret) {

			dev_err(&pdev->dev, "RX IRQ request failed\n");

			goto err;

		}



		mcasp->irq_request[SNDRV_PCM_STREAM_CAPTURE] = ROVRN;

	}



	irq = platform_get_irq_byname(pdev, "tx");

	if (irq >= 0) {

		irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s_tx\n",

					  dev_name(&pdev->dev));

		ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,

						davinci_mcasp_tx_irq_handler,

						IRQF_ONESHOT, irq_name, mcasp);

		if (ret) {

			dev_err(&pdev->dev, "TX IRQ request failed\n");

			goto err;

		}



		mcasp->irq_request[SNDRV_PCM_STREAM_PLAYBACK] = XUNDRN;

	}



	dat = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dat");

	if (dat)

		mcasp->dat_port = true;

sound/soc/davinci/davinci-mcasp.h

+11 −0
Original line number Diff line number Diff line
@@ -256,6 +256,7 @@ 
 * DAVINCI_MCASP_TXSTAT_REG - Transmitter Status Register Bits

 * DAVINCI_MCASP_RXSTAT_REG - Receiver Status Register Bits

 */

#define XRERR		BIT(8) /* Transmit/Receive error */

#define XRDATA		BIT(5) /* Transmit/Receive data ready */



/*
@@ -284,6 +285,16 @@ 
 */

#define TXDATADMADIS	BIT(0)



/*

 * DAVINCI_MCASP_EVTCTLR_REG - Receiver Interrupt Control Register Bits

 */

#define ROVRN		BIT(0)



/*

 * DAVINCI_MCASP_EVTCTLX_REG - Transmitter Interrupt Control Register Bits

 */

#define XUNDRN		BIT(0)



/*

 * DAVINCI_MCASP_W[R]FIFOCTL - Write/Read FIFO Control Register bits

 */

sound/soc/dwc/designware_i2s.c

+19 −27
Original line number Diff line number Diff line
@@ -338,31 +338,34 @@ static int dw_i2s_probe(struct platform_device *pdev) 
		return -EINVAL;

	}



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res) {

		dev_err(&pdev->dev, "no i2s resource defined\n");

		return -ENODEV;

	}



	if (!devm_request_mem_region(&pdev->dev, res->start,

				resource_size(res), pdev->name)) {

		dev_err(&pdev->dev, "i2s region already claimed\n");

		return -EBUSY;

	}



	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);

	if (!dev) {

		dev_warn(&pdev->dev, "kzalloc fail\n");

		return -ENOMEM;

	}



	dev->i2s_base = devm_ioremap(&pdev->dev, res->start,

			resource_size(res));

	if (!dev->i2s_base) {

		dev_err(&pdev->dev, "ioremap fail for i2s_region\n");

	dw_i2s_dai = devm_kzalloc(&pdev->dev, sizeof(*dw_i2s_dai), GFP_KERNEL);

	if (!dw_i2s_dai) {

		dev_err(&pdev->dev, "mem allocation failed for dai driver\n");

		return -ENOMEM;

	}



	dw_i2s_dai->ops = &dw_i2s_dai_ops;

	dw_i2s_dai->suspend = dw_i2s_suspend;

	dw_i2s_dai->resume = dw_i2s_resume;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res) {

		dev_err(&pdev->dev, "no i2s resource defined\n");

		return -ENODEV;

	}



	dev->i2s_base = devm_ioremap_resource(&pdev->dev, res);

	if (IS_ERR(dev->i2s_base)) {

		dev_err(&pdev->dev, "ioremap fail for i2s_region\n");

		return PTR_ERR(dev->i2s_base);

	}



	cap = pdata->cap;

	dev->capability = cap;

	dev->i2s_clk_cfg = pdata->i2s_clk_cfg;
@@ -388,13 +391,6 @@ static int dw_i2s_probe(struct platform_device *pdev) 
	if (ret < 0)

		goto err_clk_put;



	dw_i2s_dai = devm_kzalloc(&pdev->dev, sizeof(*dw_i2s_dai), GFP_KERNEL);

	if (!dw_i2s_dai) {

		dev_err(&pdev->dev, "mem allocation failed for dai driver\n");

		ret = -ENOMEM;

		goto err_clk_disable;

	}



	if (cap & DWC_I2S_PLAY) {

		dev_dbg(&pdev->dev, " designware: play supported\n");

		dw_i2s_dai->playback.channels_min = MIN_CHANNEL_NUM;
@@ -411,10 +407,6 @@ static int dw_i2s_probe(struct platform_device *pdev) 
		dw_i2s_dai->capture.rates = pdata->snd_rates;

	}



	dw_i2s_dai->ops = &dw_i2s_dai_ops;

	dw_i2s_dai->suspend = dw_i2s_suspend;

	dw_i2s_dai->resume = dw_i2s_resume;



	dev->dev = &pdev->dev;

	dev_set_drvdata(&pdev->dev, dev);

	ret = snd_soc_register_component(&pdev->dev, &dw_i2s_component,

sound/soc/sh/fsi.c

+3 −6
Original line number Diff line number Diff line
@@ -842,11 +842,8 @@ static int fsi_clk_disable(struct device *dev, 
		return -EINVAL;



	if (1 == clock->count--) {

		if (clock->xck)

		clk_disable(clock->xck);

		if (clock->ick)

		clk_disable(clock->ick);

		if (clock->div)

		clk_disable(clock->div);

	}