Added missing tegra files.HEADmaster

8 files changed, 1535 insertions, 0 deletions

diff --git a/sound/soc/omap/igep0020.c b/sound/soc/omap/igep0020.c
new file mode 100644
index 00000000000..0ae34702995
--- /dev/null
+++ b/sound/soc/omap/igep0020.c
@@ -0,0 +1,137 @@
+/*
+ * igep0020.c  --  SoC audio for IGEP v2
+ *
+ * Based on sound/soc/omap/overo.c by Steve Sakoman
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <mach/gpio.h>
+#include <plat/mcbsp.h>
+
+#include "omap-mcbsp.h"
+#include "omap-pcm.h"
+
+static int igep2_hw_params(struct snd_pcm_substream *substream,
+        struct snd_pcm_hw_params *params)
+{
+        struct snd_soc_pcm_runtime *rtd = substream->private_data;
+        struct snd_soc_dai *codec_dai = rtd->codec_dai;
+        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+        int ret;
+
+        /* Set codec DAI configuration */
+        ret = snd_soc_dai_set_fmt(codec_dai,
+                                  SND_SOC_DAIFMT_I2S |
+                                  SND_SOC_DAIFMT_NB_NF |
+                                  SND_SOC_DAIFMT_CBM_CFM);
+        if (ret < 0) {
+                printk(KERN_ERR "can't set codec DAI configuration\n");
+                return ret;
+        }
+
+        /* Set cpu DAI configuration */
+        ret = snd_soc_dai_set_fmt(cpu_dai,
+                                  SND_SOC_DAIFMT_I2S |
+                                  SND_SOC_DAIFMT_NB_NF |
+                                  SND_SOC_DAIFMT_CBM_CFM);
+        if (ret < 0) {
+                printk(KERN_ERR "can't set cpu DAI configuration\n");
+                return ret;
+        }
+
+        /* Set the codec system clock for DAC and ADC */
+        ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
+                                            SND_SOC_CLOCK_IN);
+        if (ret < 0) {
+                printk(KERN_ERR "can't set codec system clock\n");
+                return ret;
+        }
+
+        return 0;
+}
+
+static struct snd_soc_ops igep2_ops = {
+        .hw_params = igep2_hw_params,
+};
+
+/* Digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link igep2_dai = {
+        .name = "TWL4030",
+        .stream_name = "TWL4030",
+        .cpu_dai_name = "omap-mcbsp-dai.1",
+        .codec_dai_name = "twl4030-hifi",
+        .platform_name = "omap-pcm-audio",
+        .codec_name = "twl4030-codec",
+        .ops = &igep2_ops,
+};
+
+/* Audio machine driver */
+static struct snd_soc_card snd_soc_card_igep2 = {
+        .name = "igep2",
+        .dai_link = &igep2_dai,
+        .num_links = 1,
+};
+
+static struct platform_device *igep2_snd_device;
+
+static int __init igep2_soc_init(void)
+{
+        int ret;
+
+        if (!machine_is_igep0020())
+                return -ENODEV;
+        printk(KERN_INFO "IGEP v2 SoC init\n");
+
+        igep2_snd_device = platform_device_alloc("soc-audio", -1);
+        if (!igep2_snd_device) {
+                printk(KERN_ERR "Platform device allocation failed\n");
+                return -ENOMEM;
+        }
+
+        platform_set_drvdata(igep2_snd_device, &snd_soc_card_igep2);
+
+        ret = platform_device_add(igep2_snd_device);
+        if (ret)
+                goto err1;
+
+        return 0;
+
+err1:
+        printk(KERN_ERR "Unable to add platform device\n");
+        platform_device_put(igep2_snd_device);
+
+        return ret;
+}
+module_init(igep2_soc_init);
+
+static void __exit igep2_soc_exit(void)
+{
+        platform_device_unregister(igep2_snd_device);
+}
+module_exit(igep2_soc_exit);
+
+MODULE_AUTHOR("Enric Balletbo i Serra <eballetbo@iseebcn.com>");
+MODULE_DESCRIPTION("ALSA SoC IGEP v2");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/omap/mcpdm.c b/sound/soc/omap/mcpdm.c
new file mode 100644
index 00000000000..50e59194ad8
--- /dev/null
+++ b/sound/soc/omap/mcpdm.c
@@ -0,0 +1,470 @@
+/*
+ * mcpdm.c  --  McPDM interface driver
+ *
+ * Author: Jorge Eduardo Candelaria <x0107209@ti.com>
+ * Copyright (C) 2009 - Texas Instruments, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/wait.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+
+#include "mcpdm.h"
+
+static struct omap_mcpdm *mcpdm;
+
+static inline void omap_mcpdm_write(u16 reg, u32 val)
+{
+        __raw_writel(val, mcpdm->io_base + reg);
+}
+
+static inline int omap_mcpdm_read(u16 reg)
+{
+        return __raw_readl(mcpdm->io_base + reg);
+}
+
+static void omap_mcpdm_reg_dump(void)
+{
+        dev_dbg(mcpdm->dev, "***********************\n");
+        dev_dbg(mcpdm->dev, "IRQSTATUS_RAW:  0x%04x\n",
+                        omap_mcpdm_read(MCPDM_IRQSTATUS_RAW));
+        dev_dbg(mcpdm->dev, "IRQSTATUS: 0x%04x\n",
+                        omap_mcpdm_read(MCPDM_IRQSTATUS));
+        dev_dbg(mcpdm->dev, "IRQENABLE_SET:  0x%04x\n",
+                        omap_mcpdm_read(MCPDM_IRQENABLE_SET));
+        dev_dbg(mcpdm->dev, "IRQENABLE_CLR:  0x%04x\n",
+                        omap_mcpdm_read(MCPDM_IRQENABLE_CLR));
+        dev_dbg(mcpdm->dev, "IRQWAKE_EN: 0x%04x\n",
+                        omap_mcpdm_read(MCPDM_IRQWAKE_EN));
+        dev_dbg(mcpdm->dev, "DMAENABLE_SET: 0x%04x\n",
+                        omap_mcpdm_read(MCPDM_DMAENABLE_SET));
+        dev_dbg(mcpdm->dev, "DMAENABLE_CLR:  0x%04x\n",
+                        omap_mcpdm_read(MCPDM_DMAENABLE_CLR));
+        dev_dbg(mcpdm->dev, "DMAWAKEEN: 0x%04x\n",
+                        omap_mcpdm_read(MCPDM_DMAWAKEEN));
+        dev_dbg(mcpdm->dev, "CTRL:      0x%04x\n",
+                        omap_mcpdm_read(MCPDM_CTRL));
+        dev_dbg(mcpdm->dev, "DN_DATA:  0x%04x\n",
+                        omap_mcpdm_read(MCPDM_DN_DATA));
+        dev_dbg(mcpdm->dev, "UP_DATA: 0x%04x\n",
+                        omap_mcpdm_read(MCPDM_UP_DATA));
+        dev_dbg(mcpdm->dev, "FIFO_CTRL_DN: 0x%04x\n",
+                        omap_mcpdm_read(MCPDM_FIFO_CTRL_DN));
+        dev_dbg(mcpdm->dev, "FIFO_CTRL_UP:  0x%04x\n",
+                        omap_mcpdm_read(MCPDM_FIFO_CTRL_UP));
+        dev_dbg(mcpdm->dev, "DN_OFFSET: 0x%04x\n",
+                        omap_mcpdm_read(MCPDM_DN_OFFSET));
+        dev_dbg(mcpdm->dev, "***********************\n");
+}
+
+/*
+ * Takes the McPDM module in and out of reset state.
+ * Uplink and downlink can be reset individually.
+ */
+static void omap_mcpdm_reset_capture(int reset)
+{
+        int ctrl = omap_mcpdm_read(MCPDM_CTRL);
+
+        if (reset)
+                ctrl |= SW_UP_RST;
+        else
+                ctrl &= ~SW_UP_RST;
+
+        omap_mcpdm_write(MCPDM_CTRL, ctrl);
+}
+
+static void omap_mcpdm_reset_playback(int reset)
+{
+        int ctrl = omap_mcpdm_read(MCPDM_CTRL);
+
+        if (reset)
+                ctrl |= SW_DN_RST;
+        else
+                ctrl &= ~SW_DN_RST;
+
+        omap_mcpdm_write(MCPDM_CTRL, ctrl);
+}
+
+/*
+ * Enables the transfer through the PDM interface to/from the Phoenix
+ * codec by enabling the corresponding UP or DN channels.
+ */
+void omap_mcpdm_start(int stream)
+{
+        int ctrl = omap_mcpdm_read(MCPDM_CTRL);
+
+        if (stream)
+                ctrl |= mcpdm->up_channels;
+        else
+                ctrl |= mcpdm->dn_channels;
+
+        omap_mcpdm_write(MCPDM_CTRL, ctrl);
+}
+
+/*
+ * Disables the transfer through the PDM interface to/from the Phoenix
+ * codec by disabling the corresponding UP or DN channels.
+ */
+void omap_mcpdm_stop(int stream)
+{
+        int ctrl = omap_mcpdm_read(MCPDM_CTRL);
+
+        if (stream)
+                ctrl &= ~mcpdm->up_channels;
+        else
+                ctrl &= ~mcpdm->dn_channels;
+
+        omap_mcpdm_write(MCPDM_CTRL, ctrl);
+}
+
+/*
+ * Configures McPDM uplink for audio recording.
+ * This function should be called before omap_mcpdm_start.
+ */
+int omap_mcpdm_capture_open(struct omap_mcpdm_link *uplink)
+{
+        int irq_mask = 0;
+        int ctrl;
+
+        if (!uplink)
+                return -EINVAL;
+
+        mcpdm->uplink = uplink;
+
+        /* Enable irq request generation */
+        irq_mask |= uplink->irq_mask & MCPDM_UPLINK_IRQ_MASK;
+        omap_mcpdm_write(MCPDM_IRQENABLE_SET, irq_mask);
+
+        /* Configure uplink threshold */
+        if (uplink->threshold > UP_THRES_MAX)
+                uplink->threshold = UP_THRES_MAX;
+
+        omap_mcpdm_write(MCPDM_FIFO_CTRL_UP, uplink->threshold);
+
+        /* Configure DMA controller */
+        omap_mcpdm_write(MCPDM_DMAENABLE_SET, DMA_UP_ENABLE);
+
+        /* Set pdm out format */
+        ctrl = omap_mcpdm_read(MCPDM_CTRL);
+        ctrl &= ~PDMOUTFORMAT;
+        ctrl |= uplink->format & PDMOUTFORMAT;
+
+        /* Uplink channels */
+        mcpdm->up_channels = uplink->channels & (PDM_UP_MASK | PDM_STATUS_MASK);
+
+        omap_mcpdm_write(MCPDM_CTRL, ctrl);
+
+        return 0;
+}
+
+/*
+ * Configures McPDM downlink for audio playback.
+ * This function should be called before omap_mcpdm_start.
+ */
+int omap_mcpdm_playback_open(struct omap_mcpdm_link *downlink)
+{
+        int irq_mask = 0;
+        int ctrl;
+
+        if (!downlink)
+                return -EINVAL;
+
+        mcpdm->downlink = downlink;
+
+        /* Enable irq request generation */
+        irq_mask |= downlink->irq_mask & MCPDM_DOWNLINK_IRQ_MASK;
+        omap_mcpdm_write(MCPDM_IRQENABLE_SET, irq_mask);
+
+        /* Configure uplink threshold */
+        if (downlink->threshold > DN_THRES_MAX)
+                downlink->threshold = DN_THRES_MAX;
+
+        omap_mcpdm_write(MCPDM_FIFO_CTRL_DN, downlink->threshold);
+
+        /* Enable DMA request generation */
+        omap_mcpdm_write(MCPDM_DMAENABLE_SET, DMA_DN_ENABLE);
+
+        /* Set pdm out format */
+        ctrl = omap_mcpdm_read(MCPDM_CTRL);
+        ctrl &= ~PDMOUTFORMAT;
+        ctrl |= downlink->format & PDMOUTFORMAT;
+
+        /* Downlink channels */
+        mcpdm->dn_channels = downlink->channels & (PDM_DN_MASK | PDM_CMD_MASK);
+
+        omap_mcpdm_write(MCPDM_CTRL, ctrl);
+
+        return 0;
+}
+
+/*
+ * Cleans McPDM uplink configuration.
+ * This function should be called when the stream is closed.
+ */
+int omap_mcpdm_capture_close(struct omap_mcpdm_link *uplink)
+{
+        int irq_mask = 0;
+
+        if (!uplink)
+                return -EINVAL;
+
+        /* Disable irq request generation */
+        irq_mask |= uplink->irq_mask & MCPDM_UPLINK_IRQ_MASK;
+        omap_mcpdm_write(MCPDM_IRQENABLE_CLR, irq_mask);
+
+        /* Disable DMA request generation */
+        omap_mcpdm_write(MCPDM_DMAENABLE_CLR, DMA_UP_ENABLE);
+
+        /* Clear Downlink channels */
+        mcpdm->up_channels = 0;
+
+        mcpdm->uplink = NULL;
+
+        return 0;
+}
+
+/*
+ * Cleans McPDM downlink configuration.
+ * This function should be called when the stream is closed.
+ */
+int omap_mcpdm_playback_close(struct omap_mcpdm_link *downlink)
+{
+        int irq_mask = 0;
+
+        if (!downlink)
+                return -EINVAL;
+
+        /* Disable irq request generation */
+        irq_mask |= downlink->irq_mask & MCPDM_DOWNLINK_IRQ_MASK;
+        omap_mcpdm_write(MCPDM_IRQENABLE_CLR, irq_mask);
+
+        /* Disable DMA request generation */
+        omap_mcpdm_write(MCPDM_DMAENABLE_CLR, DMA_DN_ENABLE);
+
+        /* clear Downlink channels */
+        mcpdm->dn_channels = 0;
+
+        mcpdm->downlink = NULL;
+
+        return 0;
+}
+
+static irqreturn_t omap_mcpdm_irq_handler(int irq, void *dev_id)
+{
+        struct omap_mcpdm *mcpdm_irq = dev_id;
+        int irq_status;
+
+        irq_status = omap_mcpdm_read(MCPDM_IRQSTATUS);
+
+        /* Acknowledge irq event */
+        omap_mcpdm_write(MCPDM_IRQSTATUS, irq_status);
+
+        if (irq & MCPDM_DN_IRQ_FULL) {
+                dev_err(mcpdm_irq->dev, "DN FIFO error %x\n", irq_status);
+                omap_mcpdm_reset_playback(1);
+                omap_mcpdm_playback_open(mcpdm_irq->downlink);
+                omap_mcpdm_reset_playback(0);
+        }
+
+        if (irq & MCPDM_DN_IRQ_EMPTY) {
+                dev_err(mcpdm_irq->dev, "DN FIFO error %x\n", irq_status);
+                omap_mcpdm_reset_playback(1);
+                omap_mcpdm_playback_open(mcpdm_irq->downlink);
+                omap_mcpdm_reset_playback(0);
+        }
+
+        if (irq & MCPDM_DN_IRQ) {
+                dev_dbg(mcpdm_irq->dev, "DN write request\n");
+        }
+
+        if (irq & MCPDM_UP_IRQ_FULL) {
+                dev_err(mcpdm_irq->dev, "UP FIFO error %x\n", irq_status);
+                omap_mcpdm_reset_capture(1);
+                omap_mcpdm_capture_open(mcpdm_irq->uplink);
+                omap_mcpdm_reset_capture(0);
+        }
+
+        if (irq & MCPDM_UP_IRQ_EMPTY) {
+                dev_err(mcpdm_irq->dev, "UP FIFO error %x\n", irq_status);
+                omap_mcpdm_reset_capture(1);
+                omap_mcpdm_capture_open(mcpdm_irq->uplink);
+                omap_mcpdm_reset_capture(0);
+        }
+
+        if (irq & MCPDM_UP_IRQ) {
+                dev_dbg(mcpdm_irq->dev, "UP write request\n");
+        }
+
+        return IRQ_HANDLED;
+}
+
+int omap_mcpdm_request(void)
+{
+        int ret;
+
+        clk_enable(mcpdm->clk);
+
+        spin_lock(&mcpdm->lock);
+
+        if (!mcpdm->free) {
+                dev_err(mcpdm->dev, "McPDM interface is in use\n");
+                spin_unlock(&mcpdm->lock);
+                ret = -EBUSY;
+                goto err;
+        }
+        mcpdm->free = 0;
+
+        spin_unlock(&mcpdm->lock);
+
+        /* Disable lines while request is ongoing */
+        omap_mcpdm_write(MCPDM_CTRL, 0x00);
+
+        ret = request_irq(mcpdm->irq, omap_mcpdm_irq_handler,
+                                0, "McPDM", (void *)mcpdm);
+        if (ret) {
+                dev_err(mcpdm->dev, "Request for McPDM IRQ failed\n");
+                goto err;
+        }
+
+        return 0;
+
+err:
+        clk_disable(mcpdm->clk);
+        return ret;
+}
+
+void omap_mcpdm_free(void)
+{
+        spin_lock(&mcpdm->lock);
+        if (mcpdm->free) {
+                dev_err(mcpdm->dev, "McPDM interface is already free\n");
+                spin_unlock(&mcpdm->lock);
+                return;
+        }
+        mcpdm->free = 1;
+        spin_unlock(&mcpdm->lock);
+
+        clk_disable(mcpdm->clk);
+
+        free_irq(mcpdm->irq, (void *)mcpdm);
+}
+
+/* Enable/disable DC offset cancelation for the analog
+ * headset path (PDM channels 1 and 2).
+ */
+int omap_mcpdm_set_offset(int offset1, int offset2)
+{
+        int offset;
+
+        if ((offset1 > DN_OFST_MAX) || (offset2 > DN_OFST_MAX))
+                return -EINVAL;
+
+        offset = (offset1 << DN_OFST_RX1) | (offset2 << DN_OFST_RX2);
+
+        /* offset cancellation for channel 1 */
+        if (offset1)
+                offset |= DN_OFST_RX1_EN;
+        else
+                offset &= ~DN_OFST_RX1_EN;
+
+        /* offset cancellation for channel 2 */
+        if (offset2)
+                offset |= DN_OFST_RX2_EN;
+        else
+                offset &= ~DN_OFST_RX2_EN;
+
+        omap_mcpdm_write(MCPDM_DN_OFFSET, offset);
+
+        return 0;
+}
+
+int __devinit omap_mcpdm_probe(struct platform_device *pdev)
+{
+        struct resource *res;
+        int ret = 0;
+
+        mcpdm = kzalloc(sizeof(struct omap_mcpdm), GFP_KERNEL);
+        if (!mcpdm) {
+                ret = -ENOMEM;
+                goto exit;
+        }
+
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (res == NULL) {
+                dev_err(&pdev->dev, "no resource\n");
+                goto err_resource;
+        }
+
+        spin_lock_init(&mcpdm->lock);
+        mcpdm->free = 1;
+        mcpdm->io_base = ioremap(res->start, resource_size(res));
+        if (!mcpdm->io_base) {
+                ret = -ENOMEM;
+                goto err_resource;
+        }
+
+        mcpdm->irq = platform_get_irq(pdev, 0);
+
+        mcpdm->clk = clk_get(&pdev->dev, "pdm_ck");
+        if (IS_ERR(mcpdm->clk)) {
+                ret = PTR_ERR(mcpdm->clk);
+                dev_err(&pdev->dev, "unable to get pdm_ck: %d\n", ret);
+                goto err_clk;
+        }
+
+        mcpdm->dev = &pdev->dev;
+        platform_set_drvdata(pdev, mcpdm);
+
+        return 0;
+
+err_clk:
+        iounmap(mcpdm->io_base);
+err_resource:
+        kfree(mcpdm);
+exit:
+        return ret;
+}
+
+int omap_mcpdm_remove(struct platform_device *pdev)
+{
+        struct omap_mcpdm *mcpdm_ptr = platform_get_drvdata(pdev);
+
+        platform_set_drvdata(pdev, NULL);
+
+        clk_put(mcpdm_ptr->clk);
+
+        iounmap(mcpdm_ptr->io_base);
+
+        mcpdm_ptr->clk = NULL;
+        mcpdm_ptr->free = 0;
+        mcpdm_ptr->dev = NULL;
+
+        kfree(mcpdm_ptr);
+
+        return 0;
+}
+
diff --git a/sound/soc/omap/mcpdm.h b/sound/soc/omap/mcpdm.h
new file mode 100644
index 00000000000..20c20a8649f
--- /dev/null
+++ b/sound/soc/omap/mcpdm.h
@@ -0,0 +1,153 @@
+/*
+ * mcpdm.h -- Defines for McPDM driver
+ *
+ * Author: Jorge Eduardo Candelaria <x0107209@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+/* McPDM registers */
+
+#define MCPDM_REVISION         0x00
+#define MCPDM_SYSCONFIG                0x10
+#define MCPDM_IRQSTATUS_RAW    0x24
+#define MCPDM_IRQSTATUS                0x28
+#define MCPDM_IRQENABLE_SET    0x2C
+#define MCPDM_IRQENABLE_CLR    0x30
+#define MCPDM_IRQWAKE_EN       0x34
+#define MCPDM_DMAENABLE_SET    0x38
+#define MCPDM_DMAENABLE_CLR    0x3C
+#define MCPDM_DMAWAKEEN                0x40
+#define MCPDM_CTRL             0x44
+#define MCPDM_DN_DATA          0x48
+#define MCPDM_UP_DATA          0x4C
+#define MCPDM_FIFO_CTRL_DN     0x50
+#define MCPDM_FIFO_CTRL_UP     0x54
+#define MCPDM_DN_OFFSET                0x58
+
+/*
+ * MCPDM_IRQ bit fields
+ * IRQSTATUS_RAW, IRQSTATUS, IRQENABLE_SET, IRQENABLE_CLR
+ */
+
+#define MCPDM_DN_IRQ                   (1 << 0)
+#define MCPDM_DN_IRQ_EMPTY             (1 << 1)
+#define MCPDM_DN_IRQ_ALMST_EMPTY       (1 << 2)
+#define MCPDM_DN_IRQ_FULL              (1 << 3)
+
+#define MCPDM_UP_IRQ                   (1 << 8)
+#define MCPDM_UP_IRQ_EMPTY             (1 << 9)
+#define MCPDM_UP_IRQ_ALMST_FULL                (1 << 10)
+#define MCPDM_UP_IRQ_FULL              (1 << 11)
+
+#define MCPDM_DOWNLINK_IRQ_MASK                0x00F
+#define MCPDM_UPLINK_IRQ_MASK          0xF00
+
+/*
+ * MCPDM_DMAENABLE bit fields
+ */
+
+#define DMA_DN_ENABLE          0x1
+#define DMA_UP_ENABLE          0x2
+
+/*
+ * MCPDM_CTRL bit fields
+ */
+
+#define PDM_UP1_EN             0x0001
+#define PDM_UP2_EN             0x0002
+#define PDM_UP3_EN             0x0004
+#define PDM_DN1_EN             0x0008
+#define PDM_DN2_EN             0x0010
+#define PDM_DN3_EN             0x0020
+#define PDM_DN4_EN             0x0040
+#define PDM_DN5_EN             0x0080
+#define PDMOUTFORMAT           0x0100
+#define CMD_INT                        0x0200
+#define STATUS_INT             0x0400
+#define SW_UP_RST              0x0800
+#define SW_DN_RST              0x1000
+#define PDM_UP_MASK            0x007
+#define PDM_DN_MASK            0x0F8
+#define PDM_CMD_MASK           0x200
+#define PDM_STATUS_MASK                0x400
+
+
+#define PDMOUTFORMAT_LJUST     (0 << 8)
+#define PDMOUTFORMAT_RJUST     (1 << 8)
+
+/*
+ * MCPDM_FIFO_CTRL bit fields
+ */
+
+#define UP_THRES_MAX           0xF
+#define DN_THRES_MAX           0xF
+
+/*
+ * MCPDM_DN_OFFSET bit fields
+ */
+
+#define DN_OFST_RX1_EN         0x0001
+#define DN_OFST_RX2_EN         0x0100
+
+#define DN_OFST_RX1            1
+#define DN_OFST_RX2            9
+#define DN_OFST_MAX            0x1F
+
+#define MCPDM_UPLINK           1
+#define MCPDM_DOWNLINK         2
+
+struct omap_mcpdm_link {
+       int irq_mask;
+       int threshold;
+       int format;
+       int channels;
+};
+
+struct omap_mcpdm_platform_data {
+       unsigned long phys_base;
+       u16 irq;
+};
+
+struct omap_mcpdm {
+       struct device *dev;
+       unsigned long phys_base;
+       void __iomem *io_base;
+       u8 free;
+       int irq;
+
+       spinlock_t lock;
+       struct omap_mcpdm_platform_data *pdata;
+       struct clk *clk;
+       struct omap_mcpdm_link *downlink;
+       struct omap_mcpdm_link *uplink;
+       struct completion irq_completion;
+
+       int dn_channels;
+       int up_channels;
+};
+
+extern void omap_mcpdm_start(int stream);
+extern void omap_mcpdm_stop(int stream);
+extern int omap_mcpdm_capture_open(struct omap_mcpdm_link *uplink);
+extern int omap_mcpdm_playback_open(struct omap_mcpdm_link *downlink);
+extern int omap_mcpdm_capture_close(struct omap_mcpdm_link *uplink);
+extern int omap_mcpdm_playback_close(struct omap_mcpdm_link *downlink);
+extern int omap_mcpdm_request(void);
+extern void omap_mcpdm_free(void);
+extern int omap_mcpdm_set_offset(int offset1, int offset2);
+int __devinit omap_mcpdm_probe(struct platform_device *pdev);
+int omap_mcpdm_remove(struct platform_device *pdev);
diff --git a/sound/soc/omap/omap3beagle.c b/sound/soc/omap/omap3beagle.c
new file mode 100644
index 00000000000..40db813c079
--- /dev/null
+++ b/sound/soc/omap/omap3beagle.c
@@ -0,0 +1,149 @@
+/*
+ * omap3beagle.c  --  SoC audio for OMAP3 Beagle
+ *
+ * Author: Steve Sakoman <steve@sakoman.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <mach/gpio.h>
+#include <plat/mcbsp.h>
+
+#include "omap-mcbsp.h"
+#include "omap-pcm.h"
+
+static int omap3beagle_hw_params(struct snd_pcm_substream *substream,
+        struct snd_pcm_hw_params *params)
+{
+        struct snd_soc_pcm_runtime *rtd = substream->private_data;
+        struct snd_soc_dai *codec_dai = rtd->codec_dai;
+        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+        unsigned int fmt;
+        int ret;
+
+        switch (params_channels(params)) {
+        case 2: /* Stereo I2S mode */
+                fmt =   SND_SOC_DAIFMT_I2S |
+                        SND_SOC_DAIFMT_NB_NF |
+                        SND_SOC_DAIFMT_CBM_CFM;
+                break;
+        case 4: /* Four channel TDM mode */
+                fmt =   SND_SOC_DAIFMT_DSP_A |
+                        SND_SOC_DAIFMT_IB_NF |
+                        SND_SOC_DAIFMT_CBM_CFM;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        /* Set codec DAI configuration */
+        ret = snd_soc_dai_set_fmt(codec_dai, fmt);
+        if (ret < 0) {
+                printk(KERN_ERR "can't set codec DAI configuration\n");
+                return ret;
+        }
+
+        /* Set cpu DAI configuration */
+        ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
+        if (ret < 0) {
+                printk(KERN_ERR "can't set cpu DAI configuration\n");
+                return ret;
+        }
+
+        /* Set the codec system clock for DAC and ADC */
+        ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
+                                     SND_SOC_CLOCK_IN);
+        if (ret < 0) {
+                printk(KERN_ERR "can't set codec system clock\n");
+                return ret;
+        }
+
+        return 0;
+}
+
+static struct snd_soc_ops omap3beagle_ops = {
+        .hw_params = omap3beagle_hw_params,
+};
+
+/* Digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link omap3beagle_dai = {
+        .name = "TWL4030",
+        .stream_name = "TWL4030",
+        .cpu_dai_name = "omap-mcbsp-dai.1",
+        .platform_name = "omap-pcm-audio",
+        .codec_dai_name = "twl4030-hifi",
+        .codec_name = "twl4030-codec",
+        .ops = &omap3beagle_ops,
+};
+
+/* Audio machine driver */
+static struct snd_soc_card snd_soc_omap3beagle = {
+        .name = "omap3beagle",
+        .owner = THIS_MODULE,
+        .dai_link = &omap3beagle_dai,
+        .num_links = 1,
+};
+
+static struct platform_device *omap3beagle_snd_device;
+
+static int __init omap3beagle_soc_init(void)
+{
+        int ret;
+
+        if (!(machine_is_omap3_beagle() || machine_is_devkit8000()))
+                return -ENODEV;
+        pr_info("OMAP3 Beagle/Devkit8000 SoC init\n");
+
+        omap3beagle_snd_device = platform_device_alloc("soc-audio", -1);
+        if (!omap3beagle_snd_device) {
+                printk(KERN_ERR "Platform device allocation failed\n");
+                return -ENOMEM;
+        }
+
+        platform_set_drvdata(omap3beagle_snd_device, &snd_soc_omap3beagle);
+
+        ret = platform_device_add(omap3beagle_snd_device);
+        if (ret)
+                goto err1;
+
+        return 0;
+
+err1:
+        printk(KERN_ERR "Unable to add platform device\n");
+        platform_device_put(omap3beagle_snd_device);
+
+        return ret;
+}
+
+static void __exit omap3beagle_soc_exit(void)
+{
+        platform_device_unregister(omap3beagle_snd_device);
+}
+
+module_init(omap3beagle_soc_init);
+module_exit(omap3beagle_soc_exit);
+
+MODULE_AUTHOR("Steve Sakoman <steve@sakoman.com>");
+MODULE_DESCRIPTION("ALSA SoC OMAP3 Beagle");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/omap/omap3evm.c b/sound/soc/omap/omap3evm.c
new file mode 100644
index 00000000000..0daa0446983
--- /dev/null
+++ b/sound/soc/omap/omap3evm.c
@@ -0,0 +1,135 @@
+/*
+ * omap3evm.c  -- ALSA SoC support for OMAP3 EVM
+ *
+ * Author: Anuj Aggarwal <anuj.aggarwal@ti.com>
+ *
+ * Based on sound/soc/omap/beagle.c by Steve Sakoman
+ *
+ * Copyright (C) 2008 Texas Instruments, Incorporated
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <mach/gpio.h>
+#include <plat/mcbsp.h>
+
+#include "omap-mcbsp.h"
+#include "omap-pcm.h"
+
+static int omap3evm_hw_params(struct snd_pcm_substream *substream,
+        struct snd_pcm_hw_params *params)
+{
+        struct snd_soc_pcm_runtime *rtd = substream->private_data;
+        struct snd_soc_dai *codec_dai = rtd->codec_dai;
+        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+        int ret;
+
+        /* Set codec DAI configuration */
+        ret = snd_soc_dai_set_fmt(codec_dai,
+                                  SND_SOC_DAIFMT_I2S |
+                                  SND_SOC_DAIFMT_NB_NF |
+                                  SND_SOC_DAIFMT_CBM_CFM);
+        if (ret < 0) {
+                printk(KERN_ERR "Can't set codec DAI configuration\n");
+                return ret;
+        }
+
+        /* Set cpu DAI configuration */
+        ret = snd_soc_dai_set_fmt(cpu_dai,
+                                  SND_SOC_DAIFMT_I2S |
+                                  SND_SOC_DAIFMT_NB_NF |
+                                  SND_SOC_DAIFMT_CBM_CFM);
+        if (ret < 0) {
+                printk(KERN_ERR "Can't set cpu DAI configuration\n");
+                return ret;
+        }
+
+        /* Set the codec system clock for DAC and ADC */
+        ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
+                                     SND_SOC_CLOCK_IN);
+        if (ret < 0) {
+                printk(KERN_ERR "Can't set codec system clock\n");
+                return ret;
+        }
+
+        return 0;
+}
+
+static struct snd_soc_ops omap3evm_ops = {
+        .hw_params = omap3evm_hw_params,
+};
+
+/* Digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link omap3evm_dai = {
+        .name           = "TWL4030",
+        .stream_name    = "TWL4030",
+        .cpu_dai_name = "omap-mcbsp-dai.1",
+        .codec_dai_name = "twl4030-hifi",
+        .platform_name = "omap-pcm-audio",
+        .codec_name = "twl4030-codec",
+        .ops            = &omap3evm_ops,
+};
+
+/* Audio machine driver */
+static struct snd_soc_card snd_soc_omap3evm = {
+        .name = "omap3evm",
+        .dai_link = &omap3evm_dai,
+        .num_links = 1,
+};
+
+static struct platform_device *omap3evm_snd_device;
+
+static int __init omap3evm_soc_init(void)
+{
+        int ret;
+
+        if (!machine_is_omap3evm())
+                return -ENODEV;
+        pr_info("OMAP3 EVM SoC init\n");
+
+        omap3evm_snd_device = platform_device_alloc("soc-audio", -1);
+        if (!omap3evm_snd_device) {
+                printk(KERN_ERR "Platform device allocation failed\n");
+                return -ENOMEM;
+        }
+
+        platform_set_drvdata(omap3evm_snd_device, &snd_soc_omap3evm);
+        ret = platform_device_add(omap3evm_snd_device);
+        if (ret)
+                goto err1;
+
+        return 0;
+
+err1:
+        printk(KERN_ERR "Unable to add platform device\n");
+        platform_device_put(omap3evm_snd_device);
+
+        return ret;
+}
+
+static void __exit omap3evm_soc_exit(void)
+{
+        platform_device_unregister(omap3evm_snd_device);
+}
+
+module_init(omap3evm_soc_init);
+module_exit(omap3evm_soc_exit);
+
+MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>");
+MODULE_DESCRIPTION("ALSA SoC OMAP3 EVM");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/omap/omap4-hdmi-card.c b/sound/soc/omap/omap4-hdmi-card.c
new file mode 100644
index 00000000000..9f32615b81f
--- /dev/null
+++ b/sound/soc/omap/omap4-hdmi-card.c
@@ -0,0 +1,129 @@
+/*
+ * omap4-hdmi-card.c
+ *
+ * OMAP ALSA SoC machine driver for TI OMAP4 HDMI
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Ricardo Neri <ricardo.neri@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <asm/mach-types.h>
+#include <video/omapdss.h>
+
+#define DRV_NAME "omap4-hdmi-audio"
+
+static int omap4_hdmi_dai_hw_params(struct snd_pcm_substream *substream,
+                struct snd_pcm_hw_params *params)
+{
+        int i;
+        struct omap_overlay_manager *mgr = NULL;
+        struct device *dev = substream->pcm->card->dev;
+
+        /* Find DSS HDMI device */
+        for (i = 0; i < omap_dss_get_num_overlay_managers(); i++) {
+                mgr = omap_dss_get_overlay_manager(i);
+                if (mgr && mgr->device
+                        && mgr->device->type == OMAP_DISPLAY_TYPE_HDMI)
+                        break;
+        }
+
+        if (i == omap_dss_get_num_overlay_managers()) {
+                dev_err(dev, "HDMI display device not found!\n");
+                return -ENODEV;
+        }
+
+        /* Make sure HDMI is power-on to avoid L3 interconnect errors */
+        if (mgr->device->state != OMAP_DSS_DISPLAY_ACTIVE) {
+                dev_err(dev, "HDMI display is not active!\n");
+                return -EIO;
+        }
+
+        return 0;
+}
+
+static struct snd_soc_ops omap4_hdmi_dai_ops = {
+        .hw_params = omap4_hdmi_dai_hw_params,
+};
+
+static struct snd_soc_dai_link omap4_hdmi_dai = {
+        .name = "HDMI",
+        .stream_name = "HDMI",
+        .cpu_dai_name = "hdmi-audio-dai",
+        .platform_name = "omap-pcm-audio",
+        .codec_name = "omapdss_hdmi",
+        .codec_dai_name = "hdmi-audio-codec",
+        .ops = &omap4_hdmi_dai_ops,
+};
+
+static struct snd_soc_card snd_soc_omap4_hdmi = {
+        .name = "OMAP4HDMI",
+        .dai_link = &omap4_hdmi_dai,
+        .num_links = 1,
+};
+
+static __devinit int omap4_hdmi_probe(struct platform_device *pdev)
+{
+        struct snd_soc_card *card = &snd_soc_omap4_hdmi;
+        int ret;
+
+        card->dev = &pdev->dev;
+
+        ret = snd_soc_register_card(card);
+        if (ret) {
+                dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
+                card->dev = NULL;
+                return ret;
+        }
+        return 0;
+}
+
+static int __devexit omap4_hdmi_remove(struct platform_device *pdev)
+{
+        struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+        snd_soc_unregister_card(card);
+        card->dev = NULL;
+        return 0;
+}
+
+static struct platform_driver omap4_hdmi_driver = {
+        .driver = {
+                .name = "omap4-hdmi-audio",
+                .owner = THIS_MODULE,
+        },
+        .probe = omap4_hdmi_probe,
+        .remove = __devexit_p(omap4_hdmi_remove),
+};
+
+static int __init omap4_hdmi_init(void)
+{
+        return platform_driver_register(&omap4_hdmi_driver);
+}
+module_init(omap4_hdmi_init);
+
+static void __exit omap4_hdmi_exit(void)
+{
+        platform_driver_unregister(&omap4_hdmi_driver);
+}
+module_exit(omap4_hdmi_exit);
+
+MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>");
+MODULE_DESCRIPTION("OMAP4 HDMI machine ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/sound/soc/omap/overo.c b/sound/soc/omap/overo.c
new file mode 100644
index 00000000000..bbcf380bfb5
--- /dev/null
+++ b/sound/soc/omap/overo.c
@@ -0,0 +1,139 @@
+/*
+ * overo.c  --  SoC audio for Gumstix Overo
+ *
+ * Author: Steve Sakoman <steve@sakoman.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <mach/gpio.h>
+#include <plat/mcbsp.h>
+
+#include "omap-mcbsp.h"
+#include "omap-pcm.h"
+
+static int overo_hw_params(struct snd_pcm_substream *substream,
+        struct snd_pcm_hw_params *params)
+{
+        struct snd_soc_pcm_runtime *rtd = substream->private_data;
+        struct snd_soc_dai *codec_dai = rtd->codec_dai;
+        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+        int ret;
+
+        /* Set codec DAI configuration */
+        ret = snd_soc_dai_set_fmt(codec_dai,
+                                  SND_SOC_DAIFMT_I2S |
+                                  SND_SOC_DAIFMT_NB_NF |
+                                  SND_SOC_DAIFMT_CBM_CFM);
+        if (ret < 0) {
+                printk(KERN_ERR "can't set codec DAI configuration\n");
+                return ret;
+        }
+
+        /* Set cpu DAI configuration */
+        ret = snd_soc_dai_set_fmt(cpu_dai,
+                                  SND_SOC_DAIFMT_I2S |
+                                  SND_SOC_DAIFMT_NB_NF |
+                                  SND_SOC_DAIFMT_CBM_CFM);
+        if (ret < 0) {
+                printk(KERN_ERR "can't set cpu DAI configuration\n");
+                return ret;
+        }
+
+        /* Set the codec system clock for DAC and ADC */
+        ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
+                                            SND_SOC_CLOCK_IN);
+        if (ret < 0) {
+                printk(KERN_ERR "can't set codec system clock\n");
+                return ret;
+        }
+
+        return 0;
+}
+
+static struct snd_soc_ops overo_ops = {
+        .hw_params = overo_hw_params,
+};
+
+/* Digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link overo_dai = {
+        .name = "TWL4030",
+        .stream_name = "TWL4030",
+        .cpu_dai_name = "omap-mcbsp-dai.1",
+        .codec_dai_name = "twl4030-hifi",
+        .platform_name = "omap-pcm-audio",
+        .codec_name = "twl4030-codec",
+        .ops = &overo_ops,
+};
+
+/* Audio machine driver */
+static struct snd_soc_card snd_soc_card_overo = {
+        .name = "overo",
+        .dai_link = &overo_dai,
+        .num_links = 1,
+};
+
+static struct platform_device *overo_snd_device;
+
+static int __init overo_soc_init(void)
+{
+        int ret;
+
+        if (!(machine_is_overo() || machine_is_cm_t35())) {
+                pr_debug("Incomatible machine!\n");
+                return -ENODEV;
+        }
+        printk(KERN_INFO "overo SoC init\n");
+
+        overo_snd_device = platform_device_alloc("soc-audio", -1);
+        if (!overo_snd_device) {
+                printk(KERN_ERR "Platform device allocation failed\n");
+                return -ENOMEM;
+        }
+
+        platform_set_drvdata(overo_snd_device, &snd_soc_card_overo);
+
+        ret = platform_device_add(overo_snd_device);
+        if (ret)
+                goto err1;
+
+        return 0;
+
+err1:
+        printk(KERN_ERR "Unable to add platform device\n");
+        platform_device_put(overo_snd_device);
+
+        return ret;
+}
+module_init(overo_soc_init);
+
+static void __exit overo_soc_exit(void)
+{
+        platform_device_unregister(overo_snd_device);
+}
+module_exit(overo_soc_exit);
+
+MODULE_AUTHOR("Steve Sakoman <steve@sakoman.com>");
+MODULE_DESCRIPTION("ALSA SoC overo");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/omap/sdp4430.c b/sound/soc/omap/sdp4430.c
new file mode 100644
index 00000000000..b80efb02bfc
--- /dev/null
+++ b/sound/soc/omap/sdp4430.c
@@ -0,0 +1,223 @@
+/*
+ * sdp4430.c  --  SoC audio for TI OMAP4430 SDP
+ *
+ * Author: Misael Lopez Cruz <x0052729@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/twl6040.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include <asm/mach-types.h>
+#include <plat/hardware.h>
+#include <plat/mux.h>
+
+#include "mcpdm.h"
+#include "omap-pcm.h"
+#include "../codecs/twl6040.h"
+
+static int sdp4430_hw_params(struct snd_pcm_substream *substream,
+        struct snd_pcm_hw_params *params)
+{
+        struct snd_soc_pcm_runtime *rtd = substream->private_data;
+        struct snd_soc_dai *codec_dai = rtd->codec_dai;
+        int clk_id, freq;
+        int ret;
+
+        clk_id = twl6040_get_clk_id(rtd->codec);
+        if (clk_id == TWL6040_SYSCLK_SEL_HPPLL)
+                freq = 38400000;
+        else if (clk_id == TWL6040_SYSCLK_SEL_LPPLL)
+                freq = 32768;
+        else
+                return -EINVAL;
+
+        /* set the codec mclk */
+        ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq,
+                                SND_SOC_CLOCK_IN);
+        if (ret) {
+                printk(KERN_ERR "can't set codec system clock\n");
+                return ret;
+        }
+        return ret;
+}
+
+static struct snd_soc_ops sdp4430_ops = {
+        .hw_params = sdp4430_hw_params,
+};
+
+/* Headset jack */
+static struct snd_soc_jack hs_jack;
+
+/*Headset jack detection DAPM pins */
+static struct snd_soc_jack_pin hs_jack_pins[] = {
+        {
+                .pin = "Headset Mic",
+                .mask = SND_JACK_MICROPHONE,
+        },
+        {
+                .pin = "Headset Stereophone",
+                .mask = SND_JACK_HEADPHONE,
+        },
+};
+
+/* SDP4430 machine DAPM */
+static const struct snd_soc_dapm_widget sdp4430_twl6040_dapm_widgets[] = {
+        SND_SOC_DAPM_MIC("Ext Mic", NULL),
+        SND_SOC_DAPM_SPK("Ext Spk", NULL),
+        SND_SOC_DAPM_MIC("Headset Mic", NULL),
+        SND_SOC_DAPM_HP("Headset Stereophone", NULL),
+        SND_SOC_DAPM_SPK("Earphone Spk", NULL),
+        SND_SOC_DAPM_INPUT("Aux/FM Stereo In"),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+        /* External Mics: MAINMIC, SUBMIC with bias*/
+        {"MAINMIC", NULL, "Main Mic Bias"},
+        {"SUBMIC", NULL, "Main Mic Bias"},
+        {"Main Mic Bias", NULL, "Ext Mic"},
+
+        /* External Speakers: HFL, HFR */
+        {"Ext Spk", NULL, "HFL"},
+        {"Ext Spk", NULL, "HFR"},
+
+        /* Headset Mic: HSMIC with bias */
+        {"HSMIC", NULL, "Headset Mic Bias"},
+        {"Headset Mic Bias", NULL, "Headset Mic"},
+
+        /* Headset Stereophone (Headphone): HSOL, HSOR */
+        {"Headset Stereophone", NULL, "HSOL"},
+        {"Headset Stereophone", NULL, "HSOR"},
+
+        /* Earphone speaker */
+        {"Earphone Spk", NULL, "EP"},
+
+        /* Aux/FM Stereo In: AFML, AFMR */
+        {"AFML", NULL, "Aux/FM Stereo In"},
+        {"AFMR", NULL, "Aux/FM Stereo In"},
+};
+
+static int sdp4430_twl6040_init(struct snd_soc_pcm_runtime *rtd)
+{
+        struct snd_soc_codec *codec = rtd->codec;
+        struct snd_soc_dapm_context *dapm = &codec->dapm;
+        int ret;
+
+        /* Add SDP4430 specific widgets */
+        ret = snd_soc_dapm_new_controls(dapm, sdp4430_twl6040_dapm_widgets,
+                                ARRAY_SIZE(sdp4430_twl6040_dapm_widgets));
+        if (ret)
+                return ret;
+
+        /* Set up SDP4430 specific audio path audio_map */
+        snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
+
+        /* SDP4430 connected pins */
+        snd_soc_dapm_enable_pin(dapm, "Ext Mic");
+        snd_soc_dapm_enable_pin(dapm, "Ext Spk");
+        snd_soc_dapm_enable_pin(dapm, "AFML");
+        snd_soc_dapm_enable_pin(dapm, "AFMR");
+        snd_soc_dapm_enable_pin(dapm, "Headset Mic");
+        snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
+
+        ret = snd_soc_dapm_sync(dapm);
+        if (ret)
+                return ret;
+
+        /* Headset jack detection */
+        ret = snd_soc_jack_new(codec, "Headset Jack",
+                                SND_JACK_HEADSET, &hs_jack);
+        if (ret)
+                return ret;
+
+        ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
+                                hs_jack_pins);
+
+        if (machine_is_omap_4430sdp())
+                twl6040_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADSET);
+        else
+                snd_soc_jack_report(&hs_jack, SND_JACK_HEADSET, SND_JACK_HEADSET);
+
+        return ret;
+}
+
+/* Digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link sdp4430_dai = {
+        .name = "TWL6040",
+        .stream_name = "TWL6040",
+        .cpu_dai_name ="omap-mcpdm-dai",
+        .codec_dai_name = "twl6040-hifi",
+        .platform_name = "omap-pcm-audio",
+        .codec_name = "twl6040-codec",
+        .init = sdp4430_twl6040_init,
+        .ops = &sdp4430_ops,
+};
+
+/* Audio machine driver */
+static struct snd_soc_card snd_soc_sdp4430 = {
+        .name = "SDP4430",
+        .dai_link = &sdp4430_dai,
+        .num_links = 1,
+};
+
+static struct platform_device *sdp4430_snd_device;
+
+static int __init sdp4430_soc_init(void)
+{
+        int ret;
+
+        if (!machine_is_omap_4430sdp())
+                return -ENODEV;
+        printk(KERN_INFO "SDP4430 SoC init\n");
+
+        sdp4430_snd_device = platform_device_alloc("soc-audio", -1);
+        if (!sdp4430_snd_device) {
+                printk(KERN_ERR "Platform device allocation failed\n");
+                return -ENOMEM;
+        }
+
+        platform_set_drvdata(sdp4430_snd_device, &snd_soc_sdp4430);
+
+        ret = platform_device_add(sdp4430_snd_device);
+        if (ret)
+                goto err;
+
+        return 0;
+
+err:
+        printk(KERN_ERR "Unable to add platform device\n");
+        platform_device_put(sdp4430_snd_device);
+        return ret;
+}
+module_init(sdp4430_soc_init);
+
+static void __exit sdp4430_soc_exit(void)
+{
+        platform_device_unregister(sdp4430_snd_device);
+}
+module_exit(sdp4430_soc_exit);
+
+MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
+MODULE_DESCRIPTION("ALSA SoC SDP4430");
+MODULE_LICENSE("GPL");
+