1 files changed, 274 insertions, 274 deletions

diff --git a/sound/soc/omap/mcpdm.c b/sound/soc/omap/mcpdm.c
index 1dab4c14874..90b8bf71c89 100644
--- a/sound/soc/omap/mcpdm.c
+++ b/sound/soc/omap/mcpdm.c
@@ -1,5 +1,5 @@
 /*
- * mcpdm.c  --  McPDM interface driver
+ * mcpdm.c  --	McPDM interface driver
  *
  * Author: Jorge Eduardo Candelaria <x0107209@ti.com>
  * Copyright (C) 2009 - Texas Instruments, Inc.
@@ -39,46 +39,46 @@ static struct omap_mcpdm *mcpdm;
 
 static inline void omap_mcpdm_write(u16 reg, u32 val)
 {
-       __raw_writel(val, mcpdm->io_base + reg);
+	__raw_writel(val, mcpdm->io_base + reg);
 }
 
 static inline int omap_mcpdm_read(u16 reg)
 {
-       return __raw_readl(mcpdm->io_base + 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");
+	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");
 }
 
 /*
@@ -87,26 +87,26 @@ static void omap_mcpdm_reg_dump(void)
  */
 static void omap_mcpdm_reset_capture(int reset)
 {
-       int ctrl = omap_mcpdm_read(MCPDM_CTRL);
+	int ctrl = omap_mcpdm_read(MCPDM_CTRL);
 
-       if (reset)
-               ctrl |= SW_UP_RST;
-       else
-               ctrl &= ~SW_UP_RST;
+	if (reset)
+		ctrl |= SW_UP_RST;
+	else
+		ctrl &= ~SW_UP_RST;
 
-       omap_mcpdm_write(MCPDM_CTRL, ctrl);
+	omap_mcpdm_write(MCPDM_CTRL, ctrl);
 }
 
 static void omap_mcpdm_reset_playback(int reset)
 {
-       int ctrl = omap_mcpdm_read(MCPDM_CTRL);
+	int ctrl = omap_mcpdm_read(MCPDM_CTRL);
 
-       if (reset)
-               ctrl |= SW_DN_RST;
-       else
-               ctrl &= ~SW_DN_RST;
+	if (reset)
+		ctrl |= SW_DN_RST;
+	else
+		ctrl &= ~SW_DN_RST;
 
-       omap_mcpdm_write(MCPDM_CTRL, ctrl);
+	omap_mcpdm_write(MCPDM_CTRL, ctrl);
 }
 
 /*
@@ -115,14 +115,14 @@ static void omap_mcpdm_reset_playback(int reset)
  */
 void omap_mcpdm_start(int stream)
 {
-       int ctrl = omap_mcpdm_read(MCPDM_CTRL);
+	int ctrl = omap_mcpdm_read(MCPDM_CTRL);
 
-       if (stream)
-               ctrl |= mcpdm->up_channels;
-       else
-               ctrl |= mcpdm->dn_channels;
+	if (stream)
+		ctrl |= mcpdm->up_channels;
+	else
+		ctrl |= mcpdm->dn_channels;
 
-       omap_mcpdm_write(MCPDM_CTRL, ctrl);
+	omap_mcpdm_write(MCPDM_CTRL, ctrl);
 }
 
 /*
@@ -131,14 +131,14 @@ void omap_mcpdm_start(int stream)
  */
 void omap_mcpdm_stop(int stream)
 {
-       int ctrl = omap_mcpdm_read(MCPDM_CTRL);
+	int ctrl = omap_mcpdm_read(MCPDM_CTRL);
 
-       if (stream)
-               ctrl &= ~mcpdm->up_channels;
-       else
-               ctrl &= ~mcpdm->dn_channels;
+	if (stream)
+		ctrl &= ~mcpdm->up_channels;
+	else
+		ctrl &= ~mcpdm->dn_channels;
 
-       omap_mcpdm_write(MCPDM_CTRL, ctrl);
+	omap_mcpdm_write(MCPDM_CTRL, ctrl);
 }
 
 /*
@@ -147,38 +147,38 @@ void omap_mcpdm_stop(int stream)
  */
 int omap_mcpdm_capture_open(struct omap_mcpdm_link *uplink)
 {
-       int irq_mask = 0;
-       int ctrl;
+	int irq_mask = 0;
+	int ctrl;
 
-       if (!uplink)
-               return -EINVAL;
+	if (!uplink)
+		return -EINVAL;
 
-       mcpdm->uplink = uplink;
+	mcpdm->uplink = uplink;
 
-       /* Enable irq request generation */
-       irq_mask |= uplink->irq_mask & MCPDM_UPLINK_IRQ_MASK;
-       omap_mcpdm_write(MCPDM_IRQENABLE_SET, irq_mask);
+	/* 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;
+	/* Configure uplink threshold */
+	if (uplink->threshold > UP_THRES_MAX)
+		uplink->threshold = UP_THRES_MAX;
 
-       omap_mcpdm_write(MCPDM_FIFO_CTRL_UP, uplink->threshold);
+	omap_mcpdm_write(MCPDM_FIFO_CTRL_UP, uplink->threshold);
 
-       /* Configure DMA controller */
-       omap_mcpdm_write(MCPDM_DMAENABLE_SET, DMA_UP_ENABLE);
+	/* 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;
+	/* 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);
+	/* Uplink channels */
+	mcpdm->up_channels = uplink->channels & (PDM_UP_MASK | PDM_STATUS_MASK);
 
-       omap_mcpdm_write(MCPDM_CTRL, ctrl);
+	omap_mcpdm_write(MCPDM_CTRL, ctrl);
 
-       return 0;
+	return 0;
 }
 
 /*
@@ -187,38 +187,38 @@ int omap_mcpdm_capture_open(struct omap_mcpdm_link *uplink)
  */
 int omap_mcpdm_playback_open(struct omap_mcpdm_link *downlink)
 {
-       int irq_mask = 0;
-       int ctrl;
+	int irq_mask = 0;
+	int ctrl;
 
-       if (!downlink)
-               return -EINVAL;
+	if (!downlink)
+		return -EINVAL;
 
-       mcpdm->downlink = downlink;
+	mcpdm->downlink = downlink;
 
-       /* Enable irq request generation */
-       irq_mask |= downlink->irq_mask & MCPDM_DOWNLINK_IRQ_MASK;
-       omap_mcpdm_write(MCPDM_IRQENABLE_SET, irq_mask);
+	/* 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;
+	/* Configure uplink threshold */
+	if (downlink->threshold > DN_THRES_MAX)
+		downlink->threshold = DN_THRES_MAX;
 
-       omap_mcpdm_write(MCPDM_FIFO_CTRL_DN, downlink->threshold);
+	omap_mcpdm_write(MCPDM_FIFO_CTRL_DN, downlink->threshold);
 
-       /* Enable DMA request generation */
-       omap_mcpdm_write(MCPDM_DMAENABLE_SET, DMA_DN_ENABLE);
+	/* 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;
+	/* 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);
+	/* Downlink channels */
+	mcpdm->dn_channels = downlink->channels & (PDM_DN_MASK | PDM_CMD_MASK);
 
-       omap_mcpdm_write(MCPDM_CTRL, ctrl);
+	omap_mcpdm_write(MCPDM_CTRL, ctrl);
 
-       return 0;
+	return 0;
 }
 
 /*
@@ -227,24 +227,24 @@ int omap_mcpdm_playback_open(struct omap_mcpdm_link *downlink)
  */
 int omap_mcpdm_capture_close(struct omap_mcpdm_link *uplink)
 {
-       int irq_mask = 0;
+	int irq_mask = 0;
 
-       if (!uplink)
-               return -EINVAL;
+	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 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);
+	/* Disable DMA request generation */
+	omap_mcpdm_write(MCPDM_DMAENABLE_CLR, DMA_UP_ENABLE);
 
-       /* Clear Downlink channels */
-       mcpdm->up_channels = 0;
+	/* Clear Downlink channels */
+	mcpdm->up_channels = 0;
 
-       mcpdm->uplink = NULL;
+	mcpdm->uplink = NULL;
 
-       return 0;
+	return 0;
 }
 
 /*
@@ -253,124 +253,124 @@ int omap_mcpdm_capture_close(struct omap_mcpdm_link *uplink)
  */
 int omap_mcpdm_playback_close(struct omap_mcpdm_link *downlink)
 {
-       int irq_mask = 0;
+	int irq_mask = 0;
 
-       if (!downlink)
-               return -EINVAL;
+	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 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);
+	/* Disable DMA request generation */
+	omap_mcpdm_write(MCPDM_DMAENABLE_CLR, DMA_DN_ENABLE);
 
-       /* clear Downlink channels */
-       mcpdm->dn_channels = 0;
+	/* clear Downlink channels */
+	mcpdm->dn_channels = 0;
 
-       mcpdm->downlink = NULL;
+	mcpdm->downlink = NULL;
 
-       return 0;
+	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;
+	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;
+	int ret;
 
-       clk_enable(mcpdm->clk);
+	clk_enable(mcpdm->clk);
 
-       spin_lock(&mcpdm->lock);
+	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;
+	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);
+	spin_unlock(&mcpdm->lock);
 
-       /* Disable lines while request is ongoing */
-       omap_mcpdm_write(MCPDM_CTRL, 0x00);
+	/* 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;
-       }
+	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;
+	return 0;
 
 err:
-       clk_disable(mcpdm->clk);
-       return ret;
+	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);
+	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
@@ -378,108 +378,108 @@ void omap_mcpdm_free(void)
  */
 int omap_mcpdm_set_offset(int offset1, int offset2)
 {
-       int offset;
+	int offset;
 
-       if ((offset1 > DN_OFST_MAX) || (offset2 > DN_OFST_MAX))
-               return -EINVAL;
+	if ((offset1 > DN_OFST_MAX) || (offset2 > DN_OFST_MAX))
+		return -EINVAL;
 
-       offset = (offset1 << DN_OFST_RX1) | (offset2 << DN_OFST_RX2);
+	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 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;
+	/* 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);
+	omap_mcpdm_write(MCPDM_DN_OFFSET, offset);
 
-       return 0;
+	return 0;
 }
 
 static 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;
+	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);
+	iounmap(mcpdm->io_base);
 err_resource:
-       kfree(mcpdm);
+	kfree(mcpdm);
 exit:
-       return ret;
+	return ret;
 }
 
 static int __devexit omap_mcpdm_remove(struct platform_device *pdev)
 {
-       struct omap_mcpdm *mcpdm_ptr = platform_get_drvdata(pdev);
+	struct omap_mcpdm *mcpdm_ptr = platform_get_drvdata(pdev);
 
-       platform_set_drvdata(pdev, NULL);
+	platform_set_drvdata(pdev, NULL);
 
-       clk_put(mcpdm_ptr->clk);
+	clk_put(mcpdm_ptr->clk);
 
-       iounmap(mcpdm_ptr->io_base);
+	iounmap(mcpdm_ptr->io_base);
 
-       mcpdm_ptr->clk = NULL;
-       mcpdm_ptr->free = 0;
-       mcpdm_ptr->dev = NULL;
+	mcpdm_ptr->clk = NULL;
+	mcpdm_ptr->free = 0;
+	mcpdm_ptr->dev = NULL;
 
-       kfree(mcpdm_ptr);
+	kfree(mcpdm_ptr);
 
-       return 0;
+	return 0;
 }
 
 static struct platform_driver omap_mcpdm_driver = {
-       .probe = omap_mcpdm_probe,
-       .remove = __devexit_p(omap_mcpdm_remove),
-       .driver = {
-               .name = "omap-mcpdm",
-       },
+	.probe = omap_mcpdm_probe,
+	.remove = __devexit_p(omap_mcpdm_remove),
+	.driver = {
+		.name = "omap-mcpdm",
+	},
 };
 
 static struct platform_device *omap_mcpdm_device;
 
 static int __init omap_mcpdm_init(void)
 {
-       return platform_driver_register(&omap_mcpdm_driver);
+	return platform_driver_register(&omap_mcpdm_driver);
 }
 arch_initcall(omap_mcpdm_init);