1f9b95980Sapatard@mandriva.com /* 2f9b95980Sapatard@mandriva.com * kirkwood-i2s.c 3f9b95980Sapatard@mandriva.com * 4f9b95980Sapatard@mandriva.com * (c) 2010 Arnaud Patard <apatard@mandriva.com> 569737897SArnaud Patard (Rtp) * (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org> 6f9b95980Sapatard@mandriva.com * 7f9b95980Sapatard@mandriva.com * This program is free software; you can redistribute it and/or modify it 8f9b95980Sapatard@mandriva.com * under the terms of the GNU General Public License as published by the 9f9b95980Sapatard@mandriva.com * Free Software Foundation; either version 2 of the License, or (at your 10f9b95980Sapatard@mandriva.com * option) any later version. 11f9b95980Sapatard@mandriva.com */ 12f9b95980Sapatard@mandriva.com 13f9b95980Sapatard@mandriva.com #include <linux/init.h> 14f9b95980Sapatard@mandriva.com #include <linux/module.h> 15f9b95980Sapatard@mandriva.com #include <linux/platform_device.h> 16f9b95980Sapatard@mandriva.com #include <linux/io.h> 17f9b95980Sapatard@mandriva.com #include <linux/slab.h> 18f9b95980Sapatard@mandriva.com #include <linux/mbus.h> 19f9b95980Sapatard@mandriva.com #include <linux/delay.h> 20e919c716SAndrew Lunn #include <linux/clk.h> 21f9b95980Sapatard@mandriva.com #include <sound/pcm.h> 22f9b95980Sapatard@mandriva.com #include <sound/pcm_params.h> 23f9b95980Sapatard@mandriva.com #include <sound/soc.h> 24c02cecb9SArnd Bergmann #include <linux/platform_data/asoc-kirkwood.h> 25eb632318SJean-Francois Moine #include <linux/of.h> 26eb632318SJean-Francois Moine 27f9b95980Sapatard@mandriva.com #include "kirkwood.h" 28f9b95980Sapatard@mandriva.com 2964ddf1f8SRussell King #define DRV_NAME "mvebu-audio" 30f9b95980Sapatard@mandriva.com 31f9b95980Sapatard@mandriva.com #define KIRKWOOD_I2S_FORMATS \ 32f9b95980Sapatard@mandriva.com (SNDRV_PCM_FMTBIT_S16_LE | \ 33f9b95980Sapatard@mandriva.com SNDRV_PCM_FMTBIT_S24_LE | \ 34f9b95980Sapatard@mandriva.com SNDRV_PCM_FMTBIT_S32_LE) 35f9b95980Sapatard@mandriva.com 361c195ddbSJean-Francois Moine #define KIRKWOOD_SPDIF_FORMATS \ 371c195ddbSJean-Francois Moine (SNDRV_PCM_FMTBIT_S16_LE | \ 381c195ddbSJean-Francois Moine SNDRV_PCM_FMTBIT_S24_LE) 391c195ddbSJean-Francois Moine 40f9b95980Sapatard@mandriva.com static int kirkwood_i2s_set_fmt(struct snd_soc_dai *cpu_dai, 41f9b95980Sapatard@mandriva.com unsigned int fmt) 42f9b95980Sapatard@mandriva.com { 43f0fba2adSLiam Girdwood struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(cpu_dai); 44f9b95980Sapatard@mandriva.com unsigned long mask; 45f9b95980Sapatard@mandriva.com unsigned long value; 46f9b95980Sapatard@mandriva.com 47f9b95980Sapatard@mandriva.com switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 48f9b95980Sapatard@mandriva.com case SND_SOC_DAIFMT_RIGHT_J: 49f9b95980Sapatard@mandriva.com mask = KIRKWOOD_I2S_CTL_RJ; 50f9b95980Sapatard@mandriva.com break; 51f9b95980Sapatard@mandriva.com case SND_SOC_DAIFMT_LEFT_J: 52f9b95980Sapatard@mandriva.com mask = KIRKWOOD_I2S_CTL_LJ; 53f9b95980Sapatard@mandriva.com break; 54f9b95980Sapatard@mandriva.com case SND_SOC_DAIFMT_I2S: 55f9b95980Sapatard@mandriva.com mask = KIRKWOOD_I2S_CTL_I2S; 56f9b95980Sapatard@mandriva.com break; 57f9b95980Sapatard@mandriva.com default: 58f9b95980Sapatard@mandriva.com return -EINVAL; 59f9b95980Sapatard@mandriva.com } 60f9b95980Sapatard@mandriva.com 61f9b95980Sapatard@mandriva.com /* 62f9b95980Sapatard@mandriva.com * Set same format for playback and record 63f9b95980Sapatard@mandriva.com * This avoids some troubles. 64f9b95980Sapatard@mandriva.com */ 65f9b95980Sapatard@mandriva.com value = readl(priv->io+KIRKWOOD_I2S_PLAYCTL); 66f9b95980Sapatard@mandriva.com value &= ~KIRKWOOD_I2S_CTL_JUST_MASK; 67f9b95980Sapatard@mandriva.com value |= mask; 68f9b95980Sapatard@mandriva.com writel(value, priv->io+KIRKWOOD_I2S_PLAYCTL); 69f9b95980Sapatard@mandriva.com 70f9b95980Sapatard@mandriva.com value = readl(priv->io+KIRKWOOD_I2S_RECCTL); 71f9b95980Sapatard@mandriva.com value &= ~KIRKWOOD_I2S_CTL_JUST_MASK; 72f9b95980Sapatard@mandriva.com value |= mask; 73f9b95980Sapatard@mandriva.com writel(value, priv->io+KIRKWOOD_I2S_RECCTL); 74f9b95980Sapatard@mandriva.com 75f9b95980Sapatard@mandriva.com return 0; 76f9b95980Sapatard@mandriva.com } 77f9b95980Sapatard@mandriva.com 78f9b95980Sapatard@mandriva.com static inline void kirkwood_set_dco(void __iomem *io, unsigned long rate) 79f9b95980Sapatard@mandriva.com { 80f9b95980Sapatard@mandriva.com unsigned long value; 81f9b95980Sapatard@mandriva.com 82f9b95980Sapatard@mandriva.com value = KIRKWOOD_DCO_CTL_OFFSET_0; 83f9b95980Sapatard@mandriva.com switch (rate) { 84f9b95980Sapatard@mandriva.com default: 85f9b95980Sapatard@mandriva.com case 44100: 86f9b95980Sapatard@mandriva.com value |= KIRKWOOD_DCO_CTL_FREQ_11; 87f9b95980Sapatard@mandriva.com break; 88f9b95980Sapatard@mandriva.com case 48000: 89f9b95980Sapatard@mandriva.com value |= KIRKWOOD_DCO_CTL_FREQ_12; 90f9b95980Sapatard@mandriva.com break; 91f9b95980Sapatard@mandriva.com case 96000: 92f9b95980Sapatard@mandriva.com value |= KIRKWOOD_DCO_CTL_FREQ_24; 93f9b95980Sapatard@mandriva.com break; 94f9b95980Sapatard@mandriva.com } 95f9b95980Sapatard@mandriva.com writel(value, io + KIRKWOOD_DCO_CTL); 96f9b95980Sapatard@mandriva.com 97f9b95980Sapatard@mandriva.com /* wait for dco locked */ 98f9b95980Sapatard@mandriva.com do { 99f9b95980Sapatard@mandriva.com cpu_relax(); 100f9b95980Sapatard@mandriva.com value = readl(io + KIRKWOOD_DCO_SPCR_STATUS); 1012424d458SRussell King value &= KIRKWOOD_DCO_SPCR_STATUS_DCO_LOCK; 102f9b95980Sapatard@mandriva.com } while (value == 0); 103f9b95980Sapatard@mandriva.com } 104f9b95980Sapatard@mandriva.com 105363589bfSRussell King static void kirkwood_set_rate(struct snd_soc_dai *dai, 106363589bfSRussell King struct kirkwood_dma_data *priv, unsigned long rate) 107363589bfSRussell King { 108363589bfSRussell King uint32_t clks_ctrl; 109363589bfSRussell King 1101f1b6579SJean-Francois Moine if (IS_ERR(priv->extclk)) { 1118a537f85SJean-Francois Moine /* use internal dco for the supported rates 1128a537f85SJean-Francois Moine * defined in kirkwood_i2s_dai */ 113363589bfSRussell King dev_dbg(dai->dev, "%s: dco set rate = %lu\n", 114363589bfSRussell King __func__, rate); 115363589bfSRussell King kirkwood_set_dco(priv->io, rate); 116363589bfSRussell King 117363589bfSRussell King clks_ctrl = KIRKWOOD_MCLK_SOURCE_DCO; 1188a537f85SJean-Francois Moine } else { 1198a537f85SJean-Francois Moine /* use the external clock for the other rates 1208a537f85SJean-Francois Moine * defined in kirkwood_i2s_dai_extclk */ 121363589bfSRussell King dev_dbg(dai->dev, "%s: extclk set rate = %lu -> %lu\n", 122363589bfSRussell King __func__, rate, 256 * rate); 123363589bfSRussell King clk_set_rate(priv->extclk, 256 * rate); 124363589bfSRussell King 125363589bfSRussell King clks_ctrl = KIRKWOOD_MCLK_SOURCE_EXTCLK; 126363589bfSRussell King } 127363589bfSRussell King writel(clks_ctrl, priv->io + KIRKWOOD_CLOCKS_CTRL); 128363589bfSRussell King } 129363589bfSRussell King 130f0fba2adSLiam Girdwood static int kirkwood_i2s_startup(struct snd_pcm_substream *substream, 131f0fba2adSLiam Girdwood struct snd_soc_dai *dai) 132f0fba2adSLiam Girdwood { 133f0fba2adSLiam Girdwood struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); 134f0fba2adSLiam Girdwood 135f0fba2adSLiam Girdwood snd_soc_dai_set_dma_data(dai, substream, priv); 136f0fba2adSLiam Girdwood return 0; 137f0fba2adSLiam Girdwood } 138f0fba2adSLiam Girdwood 139f9b95980Sapatard@mandriva.com static int kirkwood_i2s_hw_params(struct snd_pcm_substream *substream, 140f9b95980Sapatard@mandriva.com struct snd_pcm_hw_params *params, 141f9b95980Sapatard@mandriva.com struct snd_soc_dai *dai) 142f9b95980Sapatard@mandriva.com { 143f0fba2adSLiam Girdwood struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); 144d8d11ba5SRussell King uint32_t ctl_play, ctl_rec; 145d8d11ba5SRussell King unsigned int i2s_reg; 146d8d11ba5SRussell King unsigned long i2s_value; 147f9b95980Sapatard@mandriva.com 148f9b95980Sapatard@mandriva.com if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 149f9b95980Sapatard@mandriva.com i2s_reg = KIRKWOOD_I2S_PLAYCTL; 150f9b95980Sapatard@mandriva.com } else { 151f9b95980Sapatard@mandriva.com i2s_reg = KIRKWOOD_I2S_RECCTL; 152f9b95980Sapatard@mandriva.com } 153f9b95980Sapatard@mandriva.com 154363589bfSRussell King kirkwood_set_rate(dai, priv, params_rate(params)); 155f9b95980Sapatard@mandriva.com 156f9b95980Sapatard@mandriva.com i2s_value = readl(priv->io+i2s_reg); 157f9b95980Sapatard@mandriva.com i2s_value &= ~KIRKWOOD_I2S_CTL_SIZE_MASK; 158f9b95980Sapatard@mandriva.com 159f9b95980Sapatard@mandriva.com /* 160f9b95980Sapatard@mandriva.com * Size settings in play/rec i2s control regs and play/rec control 161f9b95980Sapatard@mandriva.com * regs must be the same. 162f9b95980Sapatard@mandriva.com */ 163f9b95980Sapatard@mandriva.com switch (params_format(params)) { 164f9b95980Sapatard@mandriva.com case SNDRV_PCM_FORMAT_S16_LE: 165f9b95980Sapatard@mandriva.com i2s_value |= KIRKWOOD_I2S_CTL_SIZE_16; 166d8d11ba5SRussell King ctl_play = KIRKWOOD_PLAYCTL_SIZE_16_C | 16775b9b65eSJean-Francois Moine KIRKWOOD_PLAYCTL_I2S_EN | 16875b9b65eSJean-Francois Moine KIRKWOOD_PLAYCTL_SPDIF_EN; 169d8d11ba5SRussell King ctl_rec = KIRKWOOD_RECCTL_SIZE_16_C | 17075b9b65eSJean-Francois Moine KIRKWOOD_RECCTL_I2S_EN | 17175b9b65eSJean-Francois Moine KIRKWOOD_RECCTL_SPDIF_EN; 172f9b95980Sapatard@mandriva.com break; 173f9b95980Sapatard@mandriva.com /* 174f9b95980Sapatard@mandriva.com * doesn't work... S20_3LE != kirkwood 20bit format ? 175f9b95980Sapatard@mandriva.com * 176f9b95980Sapatard@mandriva.com case SNDRV_PCM_FORMAT_S20_3LE: 177f9b95980Sapatard@mandriva.com i2s_value |= KIRKWOOD_I2S_CTL_SIZE_20; 178d8d11ba5SRussell King ctl_play = KIRKWOOD_PLAYCTL_SIZE_20 | 179d8d11ba5SRussell King KIRKWOOD_PLAYCTL_I2S_EN; 180d8d11ba5SRussell King ctl_rec = KIRKWOOD_RECCTL_SIZE_20 | 181d8d11ba5SRussell King KIRKWOOD_RECCTL_I2S_EN; 182f9b95980Sapatard@mandriva.com break; 183f9b95980Sapatard@mandriva.com */ 184f9b95980Sapatard@mandriva.com case SNDRV_PCM_FORMAT_S24_LE: 185f9b95980Sapatard@mandriva.com i2s_value |= KIRKWOOD_I2S_CTL_SIZE_24; 186d8d11ba5SRussell King ctl_play = KIRKWOOD_PLAYCTL_SIZE_24 | 18775b9b65eSJean-Francois Moine KIRKWOOD_PLAYCTL_I2S_EN | 18875b9b65eSJean-Francois Moine KIRKWOOD_PLAYCTL_SPDIF_EN; 189d8d11ba5SRussell King ctl_rec = KIRKWOOD_RECCTL_SIZE_24 | 19075b9b65eSJean-Francois Moine KIRKWOOD_RECCTL_I2S_EN | 19175b9b65eSJean-Francois Moine KIRKWOOD_RECCTL_SPDIF_EN; 192f9b95980Sapatard@mandriva.com break; 193f9b95980Sapatard@mandriva.com case SNDRV_PCM_FORMAT_S32_LE: 194f9b95980Sapatard@mandriva.com i2s_value |= KIRKWOOD_I2S_CTL_SIZE_32; 195d8d11ba5SRussell King ctl_play = KIRKWOOD_PLAYCTL_SIZE_32 | 196d8d11ba5SRussell King KIRKWOOD_PLAYCTL_I2S_EN; 197d8d11ba5SRussell King ctl_rec = KIRKWOOD_RECCTL_SIZE_32 | 198d8d11ba5SRussell King KIRKWOOD_RECCTL_I2S_EN; 199f9b95980Sapatard@mandriva.com break; 200f9b95980Sapatard@mandriva.com default: 201f9b95980Sapatard@mandriva.com return -EINVAL; 202f9b95980Sapatard@mandriva.com } 203dfe4c936Sarnaud.patard@rtp-net.org 204dfe4c936Sarnaud.patard@rtp-net.org if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 205dfe4c936Sarnaud.patard@rtp-net.org if (params_channels(params) == 1) 206d8d11ba5SRussell King ctl_play |= KIRKWOOD_PLAYCTL_MONO_BOTH; 207dfe4c936Sarnaud.patard@rtp-net.org else 208d8d11ba5SRussell King ctl_play |= KIRKWOOD_PLAYCTL_MONO_OFF; 209d8d11ba5SRussell King 210d8d11ba5SRussell King priv->ctl_play &= ~(KIRKWOOD_PLAYCTL_MONO_MASK | 211db43b16fSRussell King KIRKWOOD_PLAYCTL_ENABLE_MASK | 212d8d11ba5SRussell King KIRKWOOD_PLAYCTL_SIZE_MASK); 213d8d11ba5SRussell King priv->ctl_play |= ctl_play; 214d8d11ba5SRussell King } else { 215d8d11ba5SRussell King priv->ctl_rec &= ~KIRKWOOD_RECCTL_SIZE_MASK; 216d8d11ba5SRussell King priv->ctl_rec |= ctl_rec; 217dfe4c936Sarnaud.patard@rtp-net.org } 218dfe4c936Sarnaud.patard@rtp-net.org 219f9b95980Sapatard@mandriva.com writel(i2s_value, priv->io+i2s_reg); 220f9b95980Sapatard@mandriva.com 221f9b95980Sapatard@mandriva.com return 0; 222f9b95980Sapatard@mandriva.com } 223f9b95980Sapatard@mandriva.com 224f9b95980Sapatard@mandriva.com static int kirkwood_i2s_play_trigger(struct snd_pcm_substream *substream, 225f9b95980Sapatard@mandriva.com int cmd, struct snd_soc_dai *dai) 226f9b95980Sapatard@mandriva.com { 227f0fba2adSLiam Girdwood struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); 228982b604bSRussell King uint32_t ctl, value; 229f9b95980Sapatard@mandriva.com 230982b604bSRussell King ctl = readl(priv->io + KIRKWOOD_PLAYCTL); 231982b604bSRussell King if (ctl & KIRKWOOD_PLAYCTL_PAUSE) { 232982b604bSRussell King unsigned timeout = 5000; 233f9b95980Sapatard@mandriva.com /* 234982b604bSRussell King * The Armada510 spec says that if we enter pause mode, the 235982b604bSRussell King * busy bit must be read back as clear _twice_. Make sure 236982b604bSRussell King * we respect that otherwise we get DMA underruns. 237f9b95980Sapatard@mandriva.com */ 238982b604bSRussell King do { 239982b604bSRussell King value = ctl; 240982b604bSRussell King ctl = readl(priv->io + KIRKWOOD_PLAYCTL); 241982b604bSRussell King if (!((ctl | value) & KIRKWOOD_PLAYCTL_PLAY_BUSY)) 242982b604bSRussell King break; 243982b604bSRussell King udelay(1); 244982b604bSRussell King } while (timeout--); 245982b604bSRussell King 246982b604bSRussell King if ((ctl | value) & KIRKWOOD_PLAYCTL_PLAY_BUSY) 247982b604bSRussell King dev_notice(dai->dev, "timed out waiting for busy to deassert: %08x\n", 248982b604bSRussell King ctl); 249982b604bSRussell King } 250f9b95980Sapatard@mandriva.com 251*4f6f1478SJean-Francois Moine switch (cmd) { 252*4f6f1478SJean-Francois Moine case SNDRV_PCM_TRIGGER_START: 253*4f6f1478SJean-Francois Moine /* configure */ 254*4f6f1478SJean-Francois Moine ctl = priv->ctl_play; 25575b9b65eSJean-Francois Moine if (dai->id == 0) 25675b9b65eSJean-Francois Moine ctl &= ~KIRKWOOD_PLAYCTL_SPDIF_EN; /* i2s */ 25775b9b65eSJean-Francois Moine else 25875b9b65eSJean-Francois Moine ctl &= ~KIRKWOOD_PLAYCTL_I2S_EN; /* spdif */ 25975b9b65eSJean-Francois Moine 260db43b16fSRussell King value = ctl & ~KIRKWOOD_PLAYCTL_ENABLE_MASK; 261d8d11ba5SRussell King writel(value, priv->io + KIRKWOOD_PLAYCTL); 262d8d11ba5SRussell King 263d8d11ba5SRussell King /* enable interrupts */ 264f9b95980Sapatard@mandriva.com value = readl(priv->io + KIRKWOOD_INT_MASK); 265f9b95980Sapatard@mandriva.com value |= KIRKWOOD_INT_CAUSE_PLAY_BYTES; 266f9b95980Sapatard@mandriva.com writel(value, priv->io + KIRKWOOD_INT_MASK); 267f9b95980Sapatard@mandriva.com 268d8d11ba5SRussell King /* enable playback */ 269982b604bSRussell King writel(ctl, priv->io + KIRKWOOD_PLAYCTL); 270f9b95980Sapatard@mandriva.com break; 271f9b95980Sapatard@mandriva.com 272f9b95980Sapatard@mandriva.com case SNDRV_PCM_TRIGGER_STOP: 273f9b95980Sapatard@mandriva.com /* stop audio, disable interrupts */ 27475b9b65eSJean-Francois Moine ctl |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE | 27575b9b65eSJean-Francois Moine KIRKWOOD_PLAYCTL_SPDIF_MUTE; 276982b604bSRussell King writel(ctl, priv->io + KIRKWOOD_PLAYCTL); 277f9b95980Sapatard@mandriva.com 278f9b95980Sapatard@mandriva.com value = readl(priv->io + KIRKWOOD_INT_MASK); 279f9b95980Sapatard@mandriva.com value &= ~KIRKWOOD_INT_CAUSE_PLAY_BYTES; 280f9b95980Sapatard@mandriva.com writel(value, priv->io + KIRKWOOD_INT_MASK); 281f9b95980Sapatard@mandriva.com 282f9b95980Sapatard@mandriva.com /* disable all playbacks */ 283db43b16fSRussell King ctl &= ~KIRKWOOD_PLAYCTL_ENABLE_MASK; 284982b604bSRussell King writel(ctl, priv->io + KIRKWOOD_PLAYCTL); 285f9b95980Sapatard@mandriva.com break; 286f9b95980Sapatard@mandriva.com 287f9b95980Sapatard@mandriva.com case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 288f9b95980Sapatard@mandriva.com case SNDRV_PCM_TRIGGER_SUSPEND: 28975b9b65eSJean-Francois Moine ctl |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE | 29075b9b65eSJean-Francois Moine KIRKWOOD_PLAYCTL_SPDIF_MUTE; 291982b604bSRussell King writel(ctl, priv->io + KIRKWOOD_PLAYCTL); 292f9b95980Sapatard@mandriva.com break; 293f9b95980Sapatard@mandriva.com 294f9b95980Sapatard@mandriva.com case SNDRV_PCM_TRIGGER_RESUME: 295f9b95980Sapatard@mandriva.com case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 29675b9b65eSJean-Francois Moine ctl &= ~(KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE | 29775b9b65eSJean-Francois Moine KIRKWOOD_PLAYCTL_SPDIF_MUTE); 298982b604bSRussell King writel(ctl, priv->io + KIRKWOOD_PLAYCTL); 299f9b95980Sapatard@mandriva.com break; 300f9b95980Sapatard@mandriva.com 301f9b95980Sapatard@mandriva.com default: 302f9b95980Sapatard@mandriva.com return -EINVAL; 303f9b95980Sapatard@mandriva.com } 304f9b95980Sapatard@mandriva.com 305f9b95980Sapatard@mandriva.com return 0; 306f9b95980Sapatard@mandriva.com } 307f9b95980Sapatard@mandriva.com 308f9b95980Sapatard@mandriva.com static int kirkwood_i2s_rec_trigger(struct snd_pcm_substream *substream, 309f9b95980Sapatard@mandriva.com int cmd, struct snd_soc_dai *dai) 310f9b95980Sapatard@mandriva.com { 311f0fba2adSLiam Girdwood struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); 312d8d11ba5SRussell King uint32_t ctl, value; 313f9b95980Sapatard@mandriva.com 314f9b95980Sapatard@mandriva.com value = readl(priv->io + KIRKWOOD_RECCTL); 315f9b95980Sapatard@mandriva.com 316f9b95980Sapatard@mandriva.com switch (cmd) { 317f9b95980Sapatard@mandriva.com case SNDRV_PCM_TRIGGER_START: 318d8d11ba5SRussell King /* configure */ 319d8d11ba5SRussell King ctl = priv->ctl_rec; 32075b9b65eSJean-Francois Moine if (dai->id == 0) 32175b9b65eSJean-Francois Moine ctl &= ~KIRKWOOD_RECCTL_SPDIF_EN; /* i2s */ 32275b9b65eSJean-Francois Moine else 32375b9b65eSJean-Francois Moine ctl &= ~KIRKWOOD_RECCTL_I2S_EN; /* spdif */ 32475b9b65eSJean-Francois Moine 32575b9b65eSJean-Francois Moine value = ctl & ~(KIRKWOOD_RECCTL_I2S_EN | 32675b9b65eSJean-Francois Moine KIRKWOOD_RECCTL_SPDIF_EN); 327d8d11ba5SRussell King writel(value, priv->io + KIRKWOOD_RECCTL); 328d8d11ba5SRussell King 329d8d11ba5SRussell King /* enable interrupts */ 330f9b95980Sapatard@mandriva.com value = readl(priv->io + KIRKWOOD_INT_MASK); 331f9b95980Sapatard@mandriva.com value |= KIRKWOOD_INT_CAUSE_REC_BYTES; 332f9b95980Sapatard@mandriva.com writel(value, priv->io + KIRKWOOD_INT_MASK); 333f9b95980Sapatard@mandriva.com 334d8d11ba5SRussell King /* enable record */ 335d8d11ba5SRussell King writel(ctl, priv->io + KIRKWOOD_RECCTL); 336f9b95980Sapatard@mandriva.com break; 337f9b95980Sapatard@mandriva.com 338f9b95980Sapatard@mandriva.com case SNDRV_PCM_TRIGGER_STOP: 339f9b95980Sapatard@mandriva.com /* stop audio, disable interrupts */ 340f9b95980Sapatard@mandriva.com value = readl(priv->io + KIRKWOOD_RECCTL); 341b424ec95Sarnaud.patard@rtp-net.org value |= KIRKWOOD_RECCTL_PAUSE | KIRKWOOD_RECCTL_MUTE; 342f9b95980Sapatard@mandriva.com writel(value, priv->io + KIRKWOOD_RECCTL); 343f9b95980Sapatard@mandriva.com 344f9b95980Sapatard@mandriva.com value = readl(priv->io + KIRKWOOD_INT_MASK); 345f9b95980Sapatard@mandriva.com value &= ~KIRKWOOD_INT_CAUSE_REC_BYTES; 346f9b95980Sapatard@mandriva.com writel(value, priv->io + KIRKWOOD_INT_MASK); 347f9b95980Sapatard@mandriva.com 348f9b95980Sapatard@mandriva.com /* disable all records */ 349f9b95980Sapatard@mandriva.com value = readl(priv->io + KIRKWOOD_RECCTL); 350f9b95980Sapatard@mandriva.com value &= ~(KIRKWOOD_RECCTL_I2S_EN | KIRKWOOD_RECCTL_SPDIF_EN); 351f9b95980Sapatard@mandriva.com writel(value, priv->io + KIRKWOOD_RECCTL); 352f9b95980Sapatard@mandriva.com break; 353f9b95980Sapatard@mandriva.com 354f9b95980Sapatard@mandriva.com case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 355f9b95980Sapatard@mandriva.com case SNDRV_PCM_TRIGGER_SUSPEND: 356f9b95980Sapatard@mandriva.com value = readl(priv->io + KIRKWOOD_RECCTL); 357b424ec95Sarnaud.patard@rtp-net.org value |= KIRKWOOD_RECCTL_PAUSE | KIRKWOOD_RECCTL_MUTE; 358f9b95980Sapatard@mandriva.com writel(value, priv->io + KIRKWOOD_RECCTL); 359f9b95980Sapatard@mandriva.com break; 360f9b95980Sapatard@mandriva.com 361f9b95980Sapatard@mandriva.com case SNDRV_PCM_TRIGGER_RESUME: 362f9b95980Sapatard@mandriva.com case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 363f9b95980Sapatard@mandriva.com value = readl(priv->io + KIRKWOOD_RECCTL); 364b424ec95Sarnaud.patard@rtp-net.org value &= ~(KIRKWOOD_RECCTL_PAUSE | KIRKWOOD_RECCTL_MUTE); 365f9b95980Sapatard@mandriva.com writel(value, priv->io + KIRKWOOD_RECCTL); 366f9b95980Sapatard@mandriva.com break; 367f9b95980Sapatard@mandriva.com 368f9b95980Sapatard@mandriva.com default: 369f9b95980Sapatard@mandriva.com return -EINVAL; 370f9b95980Sapatard@mandriva.com } 371f9b95980Sapatard@mandriva.com 372f9b95980Sapatard@mandriva.com return 0; 373f9b95980Sapatard@mandriva.com } 374f9b95980Sapatard@mandriva.com 375f9b95980Sapatard@mandriva.com static int kirkwood_i2s_trigger(struct snd_pcm_substream *substream, int cmd, 376f9b95980Sapatard@mandriva.com struct snd_soc_dai *dai) 377f9b95980Sapatard@mandriva.com { 378f9b95980Sapatard@mandriva.com if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 379f9b95980Sapatard@mandriva.com return kirkwood_i2s_play_trigger(substream, cmd, dai); 380f9b95980Sapatard@mandriva.com else 381f9b95980Sapatard@mandriva.com return kirkwood_i2s_rec_trigger(substream, cmd, dai); 382f9b95980Sapatard@mandriva.com 383f9b95980Sapatard@mandriva.com return 0; 384f9b95980Sapatard@mandriva.com } 385f9b95980Sapatard@mandriva.com 38675b9b65eSJean-Francois Moine static int kirkwood_i2s_init(struct kirkwood_dma_data *priv) 387f9b95980Sapatard@mandriva.com { 388f9b95980Sapatard@mandriva.com unsigned long value; 389f9b95980Sapatard@mandriva.com unsigned int reg_data; 390f9b95980Sapatard@mandriva.com 391f9b95980Sapatard@mandriva.com /* put system in a "safe" state : */ 392f9b95980Sapatard@mandriva.com /* disable audio interrupts */ 393f9b95980Sapatard@mandriva.com writel(0xffffffff, priv->io + KIRKWOOD_INT_CAUSE); 394f9b95980Sapatard@mandriva.com writel(0, priv->io + KIRKWOOD_INT_MASK); 395f9b95980Sapatard@mandriva.com 396f9b95980Sapatard@mandriva.com reg_data = readl(priv->io + 0x1200); 397f9b95980Sapatard@mandriva.com reg_data &= (~(0x333FF8)); 398f9b95980Sapatard@mandriva.com reg_data |= 0x111D18; 399f9b95980Sapatard@mandriva.com writel(reg_data, priv->io + 0x1200); 400f9b95980Sapatard@mandriva.com 401f9b95980Sapatard@mandriva.com msleep(500); 402f9b95980Sapatard@mandriva.com 403f9b95980Sapatard@mandriva.com reg_data = readl(priv->io + 0x1200); 404f9b95980Sapatard@mandriva.com reg_data &= (~(0x333FF8)); 405f9b95980Sapatard@mandriva.com reg_data |= 0x111D18; 406f9b95980Sapatard@mandriva.com writel(reg_data, priv->io + 0x1200); 407f9b95980Sapatard@mandriva.com 408f9b95980Sapatard@mandriva.com /* disable playback/record */ 409f9b95980Sapatard@mandriva.com value = readl(priv->io + KIRKWOOD_PLAYCTL); 410db43b16fSRussell King value &= ~KIRKWOOD_PLAYCTL_ENABLE_MASK; 411f9b95980Sapatard@mandriva.com writel(value, priv->io + KIRKWOOD_PLAYCTL); 412f9b95980Sapatard@mandriva.com 413f9b95980Sapatard@mandriva.com value = readl(priv->io + KIRKWOOD_RECCTL); 414f9b95980Sapatard@mandriva.com value &= ~(KIRKWOOD_RECCTL_I2S_EN | KIRKWOOD_RECCTL_SPDIF_EN); 415f9b95980Sapatard@mandriva.com writel(value, priv->io + KIRKWOOD_RECCTL); 416f9b95980Sapatard@mandriva.com 417f9b95980Sapatard@mandriva.com return 0; 418f9b95980Sapatard@mandriva.com 419f9b95980Sapatard@mandriva.com } 420f9b95980Sapatard@mandriva.com 42185e7652dSLars-Peter Clausen static const struct snd_soc_dai_ops kirkwood_i2s_dai_ops = { 422f0fba2adSLiam Girdwood .startup = kirkwood_i2s_startup, 423f9b95980Sapatard@mandriva.com .trigger = kirkwood_i2s_trigger, 424f9b95980Sapatard@mandriva.com .hw_params = kirkwood_i2s_hw_params, 425f9b95980Sapatard@mandriva.com .set_fmt = kirkwood_i2s_set_fmt, 426f9b95980Sapatard@mandriva.com }; 427f9b95980Sapatard@mandriva.com 42875b9b65eSJean-Francois Moine static struct snd_soc_dai_driver kirkwood_i2s_dai[2] = { 42975b9b65eSJean-Francois Moine { 43075b9b65eSJean-Francois Moine .name = "i2s", 43175b9b65eSJean-Francois Moine .id = 0, 432f9b95980Sapatard@mandriva.com .playback = { 433f9b95980Sapatard@mandriva.com .channels_min = 1, 434f9b95980Sapatard@mandriva.com .channels_max = 2, 4359e12cbd9SMark Brown .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | 4369e12cbd9SMark Brown SNDRV_PCM_RATE_96000, 437363589bfSRussell King .formats = KIRKWOOD_I2S_FORMATS, 438363589bfSRussell King }, 439f9b95980Sapatard@mandriva.com .capture = { 440f9b95980Sapatard@mandriva.com .channels_min = 1, 441f9b95980Sapatard@mandriva.com .channels_max = 2, 4429e12cbd9SMark Brown .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | 4439e12cbd9SMark Brown SNDRV_PCM_RATE_96000, 444363589bfSRussell King .formats = KIRKWOOD_I2S_FORMATS, 445363589bfSRussell King }, 446363589bfSRussell King .ops = &kirkwood_i2s_dai_ops, 44775b9b65eSJean-Francois Moine }, 44875b9b65eSJean-Francois Moine { 44975b9b65eSJean-Francois Moine .name = "spdif", 45075b9b65eSJean-Francois Moine .id = 1, 45175b9b65eSJean-Francois Moine .playback = { 45275b9b65eSJean-Francois Moine .channels_min = 1, 45375b9b65eSJean-Francois Moine .channels_max = 2, 45475b9b65eSJean-Francois Moine .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | 45575b9b65eSJean-Francois Moine SNDRV_PCM_RATE_96000, 4561c195ddbSJean-Francois Moine .formats = KIRKWOOD_SPDIF_FORMATS, 45775b9b65eSJean-Francois Moine }, 45875b9b65eSJean-Francois Moine .capture = { 45975b9b65eSJean-Francois Moine .channels_min = 1, 46075b9b65eSJean-Francois Moine .channels_max = 2, 46175b9b65eSJean-Francois Moine .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | 46275b9b65eSJean-Francois Moine SNDRV_PCM_RATE_96000, 4631c195ddbSJean-Francois Moine .formats = KIRKWOOD_SPDIF_FORMATS, 46475b9b65eSJean-Francois Moine }, 46575b9b65eSJean-Francois Moine .ops = &kirkwood_i2s_dai_ops, 46675b9b65eSJean-Francois Moine }, 467363589bfSRussell King }; 468363589bfSRussell King 46975b9b65eSJean-Francois Moine static struct snd_soc_dai_driver kirkwood_i2s_dai_extclk[2] = { 47075b9b65eSJean-Francois Moine { 47175b9b65eSJean-Francois Moine .name = "i2s", 47275b9b65eSJean-Francois Moine .id = 0, 473363589bfSRussell King .playback = { 474363589bfSRussell King .channels_min = 1, 475363589bfSRussell King .channels_max = 2, 476363589bfSRussell King .rates = SNDRV_PCM_RATE_8000_192000 | 477363589bfSRussell King SNDRV_PCM_RATE_CONTINUOUS | 478363589bfSRussell King SNDRV_PCM_RATE_KNOT, 479363589bfSRussell King .formats = KIRKWOOD_I2S_FORMATS, 480363589bfSRussell King }, 481363589bfSRussell King .capture = { 482363589bfSRussell King .channels_min = 1, 483363589bfSRussell King .channels_max = 2, 484363589bfSRussell King .rates = SNDRV_PCM_RATE_8000_192000 | 485363589bfSRussell King SNDRV_PCM_RATE_CONTINUOUS | 486363589bfSRussell King SNDRV_PCM_RATE_KNOT, 487363589bfSRussell King .formats = KIRKWOOD_I2S_FORMATS, 488363589bfSRussell King }, 489f9b95980Sapatard@mandriva.com .ops = &kirkwood_i2s_dai_ops, 49075b9b65eSJean-Francois Moine }, 49175b9b65eSJean-Francois Moine { 49275b9b65eSJean-Francois Moine .name = "spdif", 49375b9b65eSJean-Francois Moine .id = 1, 49475b9b65eSJean-Francois Moine .playback = { 49575b9b65eSJean-Francois Moine .channels_min = 1, 49675b9b65eSJean-Francois Moine .channels_max = 2, 49775b9b65eSJean-Francois Moine .rates = SNDRV_PCM_RATE_8000_192000 | 49875b9b65eSJean-Francois Moine SNDRV_PCM_RATE_CONTINUOUS | 49975b9b65eSJean-Francois Moine SNDRV_PCM_RATE_KNOT, 5001c195ddbSJean-Francois Moine .formats = KIRKWOOD_SPDIF_FORMATS, 50175b9b65eSJean-Francois Moine }, 50275b9b65eSJean-Francois Moine .capture = { 50375b9b65eSJean-Francois Moine .channels_min = 1, 50475b9b65eSJean-Francois Moine .channels_max = 2, 50575b9b65eSJean-Francois Moine .rates = SNDRV_PCM_RATE_8000_192000 | 50675b9b65eSJean-Francois Moine SNDRV_PCM_RATE_CONTINUOUS | 50775b9b65eSJean-Francois Moine SNDRV_PCM_RATE_KNOT, 5081c195ddbSJean-Francois Moine .formats = KIRKWOOD_SPDIF_FORMATS, 50975b9b65eSJean-Francois Moine }, 51075b9b65eSJean-Francois Moine .ops = &kirkwood_i2s_dai_ops, 51175b9b65eSJean-Francois Moine }, 512f9b95980Sapatard@mandriva.com }; 513f9b95980Sapatard@mandriva.com 51483d85f53SKuninori Morimoto static const struct snd_soc_component_driver kirkwood_i2s_component = { 51583d85f53SKuninori Morimoto .name = DRV_NAME, 51683d85f53SKuninori Morimoto }; 51783d85f53SKuninori Morimoto 51834e15fbdSBill Pemberton static int kirkwood_i2s_dev_probe(struct platform_device *pdev) 519f9b95980Sapatard@mandriva.com { 520363589bfSRussell King struct kirkwood_asoc_platform_data *data = pdev->dev.platform_data; 52175b9b65eSJean-Francois Moine struct snd_soc_dai_driver *soc_dai = kirkwood_i2s_dai; 522f0fba2adSLiam Girdwood struct kirkwood_dma_data *priv; 523363589bfSRussell King struct resource *mem; 524eb632318SJean-Francois Moine struct device_node *np = pdev->dev.of_node; 525f9b95980Sapatard@mandriva.com int err; 526f9b95980Sapatard@mandriva.com 527dbc517bfSRussell King priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); 528f9b95980Sapatard@mandriva.com if (!priv) { 529f9b95980Sapatard@mandriva.com dev_err(&pdev->dev, "allocation failed\n"); 530dbc517bfSRussell King return -ENOMEM; 531f9b95980Sapatard@mandriva.com } 532f0fba2adSLiam Girdwood dev_set_drvdata(&pdev->dev, priv); 533f9b95980Sapatard@mandriva.com 534f9b95980Sapatard@mandriva.com mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); 535b25b5aa0SThierry Reding priv->io = devm_ioremap_resource(&pdev->dev, mem); 536b25b5aa0SThierry Reding if (IS_ERR(priv->io)) 537b25b5aa0SThierry Reding return PTR_ERR(priv->io); 538f9b95980Sapatard@mandriva.com 539f9b95980Sapatard@mandriva.com priv->irq = platform_get_irq(pdev, 0); 540f9b95980Sapatard@mandriva.com if (priv->irq <= 0) { 541f9b95980Sapatard@mandriva.com dev_err(&pdev->dev, "platform_get_irq failed\n"); 542dbc517bfSRussell King return -ENXIO; 543f9b95980Sapatard@mandriva.com } 544f9b95980Sapatard@mandriva.com 545eb632318SJean-Francois Moine if (np) { 546eb632318SJean-Francois Moine priv->burst = 128; /* might be 32 or 128 */ 547eb632318SJean-Francois Moine } else if (data) { 548eb632318SJean-Francois Moine priv->burst = data->burst; 549eb632318SJean-Francois Moine } else { 550eb632318SJean-Francois Moine dev_err(&pdev->dev, "no DT nor platform data ?!\n"); 551dbc517bfSRussell King return -EINVAL; 552f9b95980Sapatard@mandriva.com } 553f9b95980Sapatard@mandriva.com 554eb632318SJean-Francois Moine priv->clk = devm_clk_get(&pdev->dev, np ? "internal" : NULL); 555e919c716SAndrew Lunn if (IS_ERR(priv->clk)) { 556e919c716SAndrew Lunn dev_err(&pdev->dev, "no clock\n"); 557dbc517bfSRussell King return PTR_ERR(priv->clk); 558e919c716SAndrew Lunn } 559dbc517bfSRussell King 560dbc517bfSRussell King err = clk_prepare_enable(priv->clk); 561dbc517bfSRussell King if (err < 0) 562dbc517bfSRussell King return err; 563e919c716SAndrew Lunn 5644734dc96SMark Brown priv->extclk = devm_clk_get(&pdev->dev, "extclk"); 56584aac6c7SJean-Francois Moine if (IS_ERR(priv->extclk)) { 56684aac6c7SJean-Francois Moine if (PTR_ERR(priv->extclk) == -EPROBE_DEFER) 56784aac6c7SJean-Francois Moine return -EPROBE_DEFER; 56884aac6c7SJean-Francois Moine } else { 569d8d11ba5SRussell King if (priv->extclk == priv->clk) { 570af64d734SRussell King devm_clk_put(&pdev->dev, priv->extclk); 571d8d11ba5SRussell King priv->extclk = ERR_PTR(-EINVAL); 572d8d11ba5SRussell King } else { 573d8d11ba5SRussell King dev_info(&pdev->dev, "found external clock\n"); 574d8d11ba5SRussell King clk_prepare_enable(priv->extclk); 57599d8d3baSJean-Francois Moine soc_dai = kirkwood_i2s_dai_extclk; 576d8d11ba5SRussell King } 577d8d11ba5SRussell King } 578d8d11ba5SRussell King 579d8d11ba5SRussell King /* Some sensible defaults - this reflects the powerup values */ 580d8d11ba5SRussell King priv->ctl_play = KIRKWOOD_PLAYCTL_SIZE_24; 581d8d11ba5SRussell King priv->ctl_rec = KIRKWOOD_RECCTL_SIZE_24; 582d8d11ba5SRussell King 583d8d11ba5SRussell King /* Select the burst size */ 584eb632318SJean-Francois Moine if (priv->burst == 32) { 585d8d11ba5SRussell King priv->ctl_play |= KIRKWOOD_PLAYCTL_BURST_32; 586d8d11ba5SRussell King priv->ctl_rec |= KIRKWOOD_RECCTL_BURST_32; 587d8d11ba5SRussell King } else { 588d8d11ba5SRussell King priv->ctl_play |= KIRKWOOD_PLAYCTL_BURST_128; 589d8d11ba5SRussell King priv->ctl_rec |= KIRKWOOD_RECCTL_BURST_128; 590d8d11ba5SRussell King } 591d8d11ba5SRussell King 59283d85f53SKuninori Morimoto err = snd_soc_register_component(&pdev->dev, &kirkwood_i2s_component, 59375b9b65eSJean-Francois Moine soc_dai, 2); 59464ddf1f8SRussell King if (err) { 59583d85f53SKuninori Morimoto dev_err(&pdev->dev, "snd_soc_register_component failed\n"); 59664ddf1f8SRussell King goto err_component; 59764ddf1f8SRussell King } 598baffab28SSimon Baatz 59964ddf1f8SRussell King err = snd_soc_register_platform(&pdev->dev, &kirkwood_soc_platform); 60064ddf1f8SRussell King if (err) { 60164ddf1f8SRussell King dev_err(&pdev->dev, "snd_soc_register_platform failed\n"); 60264ddf1f8SRussell King goto err_platform; 60364ddf1f8SRussell King } 60475b9b65eSJean-Francois Moine 60575b9b65eSJean-Francois Moine kirkwood_i2s_init(priv); 60675b9b65eSJean-Francois Moine 60764ddf1f8SRussell King return 0; 60864ddf1f8SRussell King err_platform: 60964ddf1f8SRussell King snd_soc_unregister_component(&pdev->dev); 61064ddf1f8SRussell King err_component: 6114734dc96SMark Brown if (!IS_ERR(priv->extclk)) 612363589bfSRussell King clk_disable_unprepare(priv->extclk); 613baffab28SSimon Baatz clk_disable_unprepare(priv->clk); 614f9b95980Sapatard@mandriva.com 615f9b95980Sapatard@mandriva.com return err; 616f9b95980Sapatard@mandriva.com } 617f9b95980Sapatard@mandriva.com 61834e15fbdSBill Pemberton static int kirkwood_i2s_dev_remove(struct platform_device *pdev) 619f9b95980Sapatard@mandriva.com { 620f0fba2adSLiam Girdwood struct kirkwood_dma_data *priv = dev_get_drvdata(&pdev->dev); 621f0fba2adSLiam Girdwood 62264ddf1f8SRussell King snd_soc_unregister_platform(&pdev->dev); 62383d85f53SKuninori Morimoto snd_soc_unregister_component(&pdev->dev); 624e919c716SAndrew Lunn 6254734dc96SMark Brown if (!IS_ERR(priv->extclk)) 626363589bfSRussell King clk_disable_unprepare(priv->extclk); 627e919c716SAndrew Lunn clk_disable_unprepare(priv->clk); 628f0fba2adSLiam Girdwood 629f9b95980Sapatard@mandriva.com return 0; 630f9b95980Sapatard@mandriva.com } 631f9b95980Sapatard@mandriva.com 632eb632318SJean-Francois Moine #ifdef CONFIG_OF 633eb632318SJean-Francois Moine static struct of_device_id mvebu_audio_of_match[] = { 634d098b2f0SThomas Petazzoni { .compatible = "marvell,kirkwood-audio" }, 635d098b2f0SThomas Petazzoni { .compatible = "marvell,dove-audio" }, 636eb632318SJean-Francois Moine { } 637eb632318SJean-Francois Moine }; 638eb632318SJean-Francois Moine MODULE_DEVICE_TABLE(of, mvebu_audio_of_match); 639eb632318SJean-Francois Moine #endif 640eb632318SJean-Francois Moine 641f9b95980Sapatard@mandriva.com static struct platform_driver kirkwood_i2s_driver = { 642f9b95980Sapatard@mandriva.com .probe = kirkwood_i2s_dev_probe, 64334e15fbdSBill Pemberton .remove = kirkwood_i2s_dev_remove, 644f9b95980Sapatard@mandriva.com .driver = { 645f9b95980Sapatard@mandriva.com .name = DRV_NAME, 646f9b95980Sapatard@mandriva.com .owner = THIS_MODULE, 647eb632318SJean-Francois Moine .of_match_table = of_match_ptr(mvebu_audio_of_match), 648f9b95980Sapatard@mandriva.com }, 649f9b95980Sapatard@mandriva.com }; 650f9b95980Sapatard@mandriva.com 65141b10225SAxel Lin module_platform_driver(kirkwood_i2s_driver); 652f9b95980Sapatard@mandriva.com 653f9b95980Sapatard@mandriva.com /* Module information */ 65469737897SArnaud Patard (Rtp) MODULE_AUTHOR("Arnaud Patard, <arnaud.patard@rtp-net.org>"); 655f9b95980Sapatard@mandriva.com MODULE_DESCRIPTION("Kirkwood I2S SoC Interface"); 656f9b95980Sapatard@mandriva.com MODULE_LICENSE("GPL"); 65764ddf1f8SRussell King MODULE_ALIAS("platform:mvebu-audio"); 658