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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-13 11:51:23 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-13 11:51:23 -0800
commit046e7d685bc370fd4c879ab6635ad3f69e6673d1 (patch)
tree36b981f8d1f2bfd348c1479acbe3a9426d35c377 /sound/soc/kirkwood/kirkwood-i2s.c
parentfe504c5c745aeb767d978fbedeb94775fd4cb69c (diff)
parent6eb827d23577a4efec2b10a9c4cc9ded268a1d1c (diff)
downloadlinux-046e7d685bc370fd4c879ab6635ad3f69e6673d1.tar.bz2
Merge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai: "This update contains a fairly wide range of changes all over in sound subdirectory, mainly because of UAPI header moves by David and __dev* annotation removals by Bill. Other highlights are: - Introduced the support for wallclock timestamps in ALSA PCM core - Add the poll loop implementation for HD-audio jack detection - Yet more VGA-switcheroo fixes for HD-audio - New VIA HD-audio codec support - More fixes on resource management in USB audio and MIDI drivers - More quirks for USB-audio ASUS Xonar U3, Reloop Play, Focusrite, Roland VG-99, etc - Add support for FastTrack C400 usb-audio - Clean ups in many drivers regarding firmware loading - Add PSC724 Ultiimate Edge support to ice1712 - A few hdspm driver updates - New Stanton SCS.1d/1m FireWire driver - Standardisation of the logging in ASoC codes - DT and dmaengine support for ASoC Atmel - Support for Wolfson ADSP cores - New drivers for Freescale/iVeia P1022 and Maxim MAX98090 - Lots of other ASoC driver fixes and developments" Fix up trivial conflicts. And go out on a limb and assume the dts file 'status' field of one of the conflicting things was supposed to be "disabled", not "disable" like in pretty much all other cases. * tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (341 commits) ALSA: hda - Move runtime PM check to runtime_idle callback ALSA: hda - Add stereo-dmic fixup for Acer Aspire One 522 ALSA: hda - Avoid doubly suspend after vga switcheroo ALSA: usb-audio: Enable S/PDIF on the ASUS Xonar U3 ALSA: hda - Check validity of CORB/RIRB WP reads ALSA: hda - use usleep_range in link reset and change timeout check ALSA: HDA: VIA: Add support for codec VT1808. ALSA: HDA: VIA Add support for codec VT1705CF. ASoC: codecs: remove __dev* attributes ASoC: utils: remove __dev* attributes ASoC: ux500: remove __dev* attributes ASoC: txx9: remove __dev* attributes ASoC: tegra: remove __dev* attributes ASoC: spear: remove __dev* attributes ASoC: sh: remove __dev* attributes ASoC: s6000: remove __dev* attributes ASoC: OMAP: remove __dev* attributes ASoC: nuc900: remove __dev* attributes ASoC: mxs: remove __dev* attributes ASoC: kirkwood: remove __dev* attributes ...
Diffstat (limited to 'sound/soc/kirkwood/kirkwood-i2s.c')
-rw-r--r--sound/soc/kirkwood/kirkwood-i2s.c241
1 files changed, 152 insertions, 89 deletions
diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index 1d5db484d2df..282d8b1163ba 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -99,6 +99,29 @@ static inline void kirkwood_set_dco(void __iomem *io, unsigned long rate)
} while (value == 0);
}
+static void kirkwood_set_rate(struct snd_soc_dai *dai,
+ struct kirkwood_dma_data *priv, unsigned long rate)
+{
+ uint32_t clks_ctrl;
+
+ if (rate == 44100 || rate == 48000 || rate == 96000) {
+ /* use internal dco for supported rates */
+ dev_dbg(dai->dev, "%s: dco set rate = %lu\n",
+ __func__, rate);
+ kirkwood_set_dco(priv->io, rate);
+
+ clks_ctrl = KIRKWOOD_MCLK_SOURCE_DCO;
+ } else if (!IS_ERR(priv->extclk)) {
+ /* use optional external clk for other rates */
+ dev_dbg(dai->dev, "%s: extclk set rate = %lu -> %lu\n",
+ __func__, rate, 256 * rate);
+ clk_set_rate(priv->extclk, 256 * rate);
+
+ clks_ctrl = KIRKWOOD_MCLK_SOURCE_EXTCLK;
+ }
+ writel(clks_ctrl, priv->io + KIRKWOOD_CLOCKS_CTRL);
+}
+
static int kirkwood_i2s_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
@@ -113,26 +136,21 @@ static int kirkwood_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai);
- unsigned int i2s_reg, reg;
- unsigned long i2s_value, value;
+ uint32_t ctl_play, ctl_rec;
+ unsigned int i2s_reg;
+ unsigned long i2s_value;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
i2s_reg = KIRKWOOD_I2S_PLAYCTL;
- reg = KIRKWOOD_PLAYCTL;
} else {
i2s_reg = KIRKWOOD_I2S_RECCTL;
- reg = KIRKWOOD_RECCTL;
}
- /* set dco conf */
- kirkwood_set_dco(priv->io, params_rate(params));
+ kirkwood_set_rate(dai, priv, params_rate(params));
i2s_value = readl(priv->io+i2s_reg);
i2s_value &= ~KIRKWOOD_I2S_CTL_SIZE_MASK;
- value = readl(priv->io+reg);
- value &= ~KIRKWOOD_PLAYCTL_SIZE_MASK;
-
/*
* Size settings in play/rec i2s control regs and play/rec control
* regs must be the same.
@@ -140,38 +158,57 @@ static int kirkwood_i2s_hw_params(struct snd_pcm_substream *substream,
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
i2s_value |= KIRKWOOD_I2S_CTL_SIZE_16;
- value |= KIRKWOOD_PLAYCTL_SIZE_16_C;
+ ctl_play = KIRKWOOD_PLAYCTL_SIZE_16_C |
+ KIRKWOOD_PLAYCTL_I2S_EN;
+ ctl_rec = KIRKWOOD_RECCTL_SIZE_16_C |
+ KIRKWOOD_RECCTL_I2S_EN;
break;
/*
* doesn't work... S20_3LE != kirkwood 20bit format ?
*
case SNDRV_PCM_FORMAT_S20_3LE:
i2s_value |= KIRKWOOD_I2S_CTL_SIZE_20;
- value |= KIRKWOOD_PLAYCTL_SIZE_20;
+ ctl_play = KIRKWOOD_PLAYCTL_SIZE_20 |
+ KIRKWOOD_PLAYCTL_I2S_EN;
+ ctl_rec = KIRKWOOD_RECCTL_SIZE_20 |
+ KIRKWOOD_RECCTL_I2S_EN;
break;
*/
case SNDRV_PCM_FORMAT_S24_LE:
i2s_value |= KIRKWOOD_I2S_CTL_SIZE_24;
- value |= KIRKWOOD_PLAYCTL_SIZE_24;
+ ctl_play = KIRKWOOD_PLAYCTL_SIZE_24 |
+ KIRKWOOD_PLAYCTL_I2S_EN;
+ ctl_rec = KIRKWOOD_RECCTL_SIZE_24 |
+ KIRKWOOD_RECCTL_I2S_EN;
break;
case SNDRV_PCM_FORMAT_S32_LE:
i2s_value |= KIRKWOOD_I2S_CTL_SIZE_32;
- value |= KIRKWOOD_PLAYCTL_SIZE_32;
+ ctl_play = KIRKWOOD_PLAYCTL_SIZE_32 |
+ KIRKWOOD_PLAYCTL_I2S_EN;
+ ctl_rec = KIRKWOOD_RECCTL_SIZE_32 |
+ KIRKWOOD_RECCTL_I2S_EN;
break;
default:
return -EINVAL;
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- value &= ~KIRKWOOD_PLAYCTL_MONO_MASK;
if (params_channels(params) == 1)
- value |= KIRKWOOD_PLAYCTL_MONO_BOTH;
+ ctl_play |= KIRKWOOD_PLAYCTL_MONO_BOTH;
else
- value |= KIRKWOOD_PLAYCTL_MONO_OFF;
+ ctl_play |= KIRKWOOD_PLAYCTL_MONO_OFF;
+
+ priv->ctl_play &= ~(KIRKWOOD_PLAYCTL_MONO_MASK |
+ KIRKWOOD_PLAYCTL_I2S_EN |
+ KIRKWOOD_PLAYCTL_SPDIF_EN |
+ KIRKWOOD_PLAYCTL_SIZE_MASK);
+ priv->ctl_play |= ctl_play;
+ } else {
+ priv->ctl_rec &= ~KIRKWOOD_RECCTL_SIZE_MASK;
+ priv->ctl_rec |= ctl_rec;
}
writel(i2s_value, priv->io+i2s_reg);
- writel(value, priv->io+reg);
return 0;
}
@@ -205,20 +242,18 @@ static int kirkwood_i2s_play_trigger(struct snd_pcm_substream *substream,
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
+ /* configure */
+ ctl = priv->ctl_play;
+ value = ctl & ~(KIRKWOOD_PLAYCTL_I2S_EN |
+ KIRKWOOD_PLAYCTL_SPDIF_EN);
+ writel(value, priv->io + KIRKWOOD_PLAYCTL);
+
+ /* enable interrupts */
value = readl(priv->io + KIRKWOOD_INT_MASK);
value |= KIRKWOOD_INT_CAUSE_PLAY_BYTES;
writel(value, priv->io + KIRKWOOD_INT_MASK);
- /* configure audio & enable i2s playback */
- ctl &= ~KIRKWOOD_PLAYCTL_BURST_MASK;
- ctl &= ~(KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE
- | KIRKWOOD_PLAYCTL_SPDIF_EN);
-
- if (priv->burst == 32)
- ctl |= KIRKWOOD_PLAYCTL_BURST_32;
- else
- ctl |= KIRKWOOD_PLAYCTL_BURST_128;
- ctl |= KIRKWOOD_PLAYCTL_I2S_EN;
+ /* enable playback */
writel(ctl, priv->io + KIRKWOOD_PLAYCTL);
break;
@@ -259,30 +294,24 @@ static int kirkwood_i2s_rec_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *dai)
{
struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai);
- unsigned long value;
+ uint32_t ctl, value;
value = readl(priv->io + KIRKWOOD_RECCTL);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
+ /* configure */
+ ctl = priv->ctl_rec;
+ value = ctl & ~KIRKWOOD_RECCTL_I2S_EN;
+ writel(value, priv->io + KIRKWOOD_RECCTL);
+
+ /* enable interrupts */
value = readl(priv->io + KIRKWOOD_INT_MASK);
value |= KIRKWOOD_INT_CAUSE_REC_BYTES;
writel(value, priv->io + KIRKWOOD_INT_MASK);
- /* configure audio & enable i2s record */
- value = readl(priv->io + KIRKWOOD_RECCTL);
- value &= ~KIRKWOOD_RECCTL_BURST_MASK;
- value &= ~KIRKWOOD_RECCTL_MONO;
- value &= ~(KIRKWOOD_RECCTL_PAUSE | KIRKWOOD_RECCTL_MUTE
- | KIRKWOOD_RECCTL_SPDIF_EN);
-
- if (priv->burst == 32)
- value |= KIRKWOOD_RECCTL_BURST_32;
- else
- value |= KIRKWOOD_RECCTL_BURST_128;
- value |= KIRKWOOD_RECCTL_I2S_EN;
-
- writel(value, priv->io + KIRKWOOD_RECCTL);
+ /* enable record */
+ writel(ctl, priv->io + KIRKWOOD_RECCTL);
break;
case SNDRV_PCM_TRIGGER_STOP:
@@ -389,112 +418,146 @@ static struct snd_soc_dai_driver kirkwood_i2s_dai = {
.channels_min = 1,
.channels_max = 2,
.rates = KIRKWOOD_I2S_RATES,
- .formats = KIRKWOOD_I2S_FORMATS,},
+ .formats = KIRKWOOD_I2S_FORMATS,
+ },
.capture = {
.channels_min = 1,
.channels_max = 2,
.rates = KIRKWOOD_I2S_RATES,
- .formats = KIRKWOOD_I2S_FORMATS,},
+ .formats = KIRKWOOD_I2S_FORMATS,
+ },
.ops = &kirkwood_i2s_dai_ops,
};
-static __devinit int kirkwood_i2s_dev_probe(struct platform_device *pdev)
+static struct snd_soc_dai_driver kirkwood_i2s_dai_extclk = {
+ .probe = kirkwood_i2s_probe,
+ .remove = kirkwood_i2s_remove,
+ .playback = {
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000 |
+ SNDRV_PCM_RATE_CONTINUOUS |
+ SNDRV_PCM_RATE_KNOT,
+ .formats = KIRKWOOD_I2S_FORMATS,
+ },
+ .capture = {
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000 |
+ SNDRV_PCM_RATE_CONTINUOUS |
+ SNDRV_PCM_RATE_KNOT,
+ .formats = KIRKWOOD_I2S_FORMATS,
+ },
+ .ops = &kirkwood_i2s_dai_ops,
+};
+
+static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
{
- struct resource *mem;
- struct kirkwood_asoc_platform_data *data =
- pdev->dev.platform_data;
+ struct kirkwood_asoc_platform_data *data = pdev->dev.platform_data;
+ struct snd_soc_dai_driver *soc_dai = &kirkwood_i2s_dai;
struct kirkwood_dma_data *priv;
+ struct resource *mem;
int err;
- priv = kzalloc(sizeof(struct kirkwood_dma_data), GFP_KERNEL);
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv) {
dev_err(&pdev->dev, "allocation failed\n");
- err = -ENOMEM;
- goto error;
+ return -ENOMEM;
}
dev_set_drvdata(&pdev->dev, priv);
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem) {
dev_err(&pdev->dev, "platform_get_resource failed\n");
- err = -ENXIO;
- goto err_alloc;
- }
-
- priv->mem = request_mem_region(mem->start, SZ_16K, DRV_NAME);
- if (!priv->mem) {
- dev_err(&pdev->dev, "request_mem_region failed\n");
- err = -EBUSY;
- goto err_alloc;
+ return -ENXIO;
}
- priv->io = ioremap(priv->mem->start, SZ_16K);
+ priv->io = devm_request_and_ioremap(&pdev->dev, mem);
if (!priv->io) {
- dev_err(&pdev->dev, "ioremap failed\n");
- err = -ENOMEM;
- goto err_iomem;
+ dev_err(&pdev->dev, "devm_request_and_ioremap failed\n");
+ return -ENOMEM;
}
priv->irq = platform_get_irq(pdev, 0);
if (priv->irq <= 0) {
dev_err(&pdev->dev, "platform_get_irq failed\n");
- err = -ENXIO;
- goto err_ioremap;
+ return -ENXIO;
}
if (!data) {
dev_err(&pdev->dev, "no platform data ?!\n");
- err = -EINVAL;
- goto err_ioremap;
+ return -EINVAL;
}
priv->burst = data->burst;
- priv->clk = clk_get(&pdev->dev, NULL);
+ priv->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(priv->clk)) {
dev_err(&pdev->dev, "no clock\n");
- err = PTR_ERR(priv->clk);
- goto err_ioremap;
+ return PTR_ERR(priv->clk);
+ }
+
+ err = clk_prepare_enable(priv->clk);
+ if (err < 0)
+ return err;
+
+ priv->extclk = clk_get(&pdev->dev, "extclk");
+ if (!IS_ERR(priv->extclk)) {
+ if (priv->extclk == priv->clk) {
+ clk_put(priv->extclk);
+ priv->extclk = ERR_PTR(-EINVAL);
+ } else {
+ dev_info(&pdev->dev, "found external clock\n");
+ clk_prepare_enable(priv->extclk);
+ soc_dai = &kirkwood_i2s_dai_extclk;
+ }
+ }
+
+ /* Some sensible defaults - this reflects the powerup values */
+ priv->ctl_play = KIRKWOOD_PLAYCTL_SIZE_24;
+ priv->ctl_rec = KIRKWOOD_RECCTL_SIZE_24;
+
+ /* Select the burst size */
+ if (data->burst == 32) {
+ priv->ctl_play |= KIRKWOOD_PLAYCTL_BURST_32;
+ priv->ctl_rec |= KIRKWOOD_RECCTL_BURST_32;
+ } else {
+ priv->ctl_play |= KIRKWOOD_PLAYCTL_BURST_128;
+ priv->ctl_rec |= KIRKWOOD_RECCTL_BURST_128;
}
- clk_prepare_enable(priv->clk);
- err = snd_soc_register_dai(&pdev->dev, &kirkwood_i2s_dai);
+ err = snd_soc_register_dai(&pdev->dev, soc_dai);
if (!err)
return 0;
dev_err(&pdev->dev, "snd_soc_register_dai failed\n");
+ if (!IS_ERR(priv->extclk)) {
+ clk_disable_unprepare(priv->extclk);
+ clk_put(priv->extclk);
+ }
clk_disable_unprepare(priv->clk);
- clk_put(priv->clk);
-
-err_ioremap:
- iounmap(priv->io);
-err_iomem:
- release_mem_region(priv->mem->start, SZ_16K);
-err_alloc:
- kfree(priv);
-error:
+
return err;
}
-static __devexit int kirkwood_i2s_dev_remove(struct platform_device *pdev)
+static int kirkwood_i2s_dev_remove(struct platform_device *pdev)
{
struct kirkwood_dma_data *priv = dev_get_drvdata(&pdev->dev);
snd_soc_unregister_dai(&pdev->dev);
+ if (!IS_ERR(priv->extclk)) {
+ clk_disable_unprepare(priv->extclk);
+ clk_put(priv->extclk);
+ }
clk_disable_unprepare(priv->clk);
- clk_put(priv->clk);
-
- iounmap(priv->io);
- release_mem_region(priv->mem->start, SZ_16K);
- kfree(priv);
return 0;
}
static struct platform_driver kirkwood_i2s_driver = {
.probe = kirkwood_i2s_dev_probe,
- .remove = __devexit_p(kirkwood_i2s_dev_remove),
+ .remove = kirkwood_i2s_dev_remove,
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,