Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-rmk

1 files changed, 309 insertions, 458 deletions

diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index 9cf83c4da9fa..c7f74064696c 100644
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -15,95 +15,66 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/wait.h>
 #include <linux/completion.h>
 #include <linux/interrupt.h>
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
+#include <linux/io.h>
 
 #include <asm/arch/dma.h>
-#include <asm/arch/mux.h>
-#include <asm/arch/irqs.h>
-#include <asm/arch/dsp_common.h>
 #include <asm/arch/mcbsp.h>
 
-#ifdef CONFIG_MCBSP_DEBUG
-#define DBG(x...)	printk(x)
-#else
-#define DBG(x...)			do { } while (0)
-#endif
-
-struct omap_mcbsp {
-	u32                          io_base;
-	u8                           id;
-	u8                           free;
-	omap_mcbsp_word_length       rx_word_length;
-	omap_mcbsp_word_length       tx_word_length;
-
-	omap_mcbsp_io_type_t         io_type; /* IRQ or poll */
-	/* IRQ based TX/RX */
-	int                          rx_irq;
-	int                          tx_irq;
-
-	/* DMA stuff */
-	u8                           dma_rx_sync;
-	short                        dma_rx_lch;
-	u8                           dma_tx_sync;
-	short                        dma_tx_lch;
-
-	/* Completion queues */
-	struct completion            tx_irq_completion;
-	struct completion            rx_irq_completion;
-	struct completion            tx_dma_completion;
-	struct completion            rx_dma_completion;
-
-	spinlock_t                   lock;
-};
-
 static struct omap_mcbsp mcbsp[OMAP_MAX_MCBSP_COUNT];
-#ifdef CONFIG_ARCH_OMAP1
-static struct clk *mcbsp_dsp_ck = 0;
-static struct clk *mcbsp_api_ck = 0;
-static struct clk *mcbsp_dspxor_ck = 0;
-#endif
-#ifdef CONFIG_ARCH_OMAP2
-static struct clk *mcbsp1_ick = 0;
-static struct clk *mcbsp1_fck = 0;
-static struct clk *mcbsp2_ick = 0;
-static struct clk *mcbsp2_fck = 0;
-#endif
+
+#define omap_mcbsp_check_valid_id(id)	(mcbsp[id].pdata && \
+					mcbsp[id].pdata->ops && \
+					mcbsp[id].pdata->ops->check && \
+					(mcbsp[id].pdata->ops->check(id) == 0))
 
 static void omap_mcbsp_dump_reg(u8 id)
 {
-	DBG("**** MCBSP%d regs ****\n", mcbsp[id].id);
-	DBG("DRR2:  0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, DRR2));
-	DBG("DRR1:  0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, DRR1));
-	DBG("DXR2:  0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, DXR2));
-	DBG("DXR1:  0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, DXR1));
-	DBG("SPCR2: 0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, SPCR2));
-	DBG("SPCR1: 0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, SPCR1));
-	DBG("RCR2:  0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, RCR2));
-	DBG("RCR1:  0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, RCR1));
-	DBG("XCR2:  0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, XCR2));
-	DBG("XCR1:  0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, XCR1));
-	DBG("SRGR2: 0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, SRGR2));
-	DBG("SRGR1: 0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, SRGR1));
-	DBG("PCR0:  0x%04x\n", OMAP_MCBSP_READ(mcbsp[id].io_base, PCR0));
-	DBG("***********************\n");
+	dev_dbg(mcbsp[id].dev, "**** McBSP%d regs ****\n", mcbsp[id].id);
+	dev_dbg(mcbsp[id].dev, "DRR2:  0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, DRR2));
+	dev_dbg(mcbsp[id].dev, "DRR1:  0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, DRR1));
+	dev_dbg(mcbsp[id].dev, "DXR2:  0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, DXR2));
+	dev_dbg(mcbsp[id].dev, "DXR1:  0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, DXR1));
+	dev_dbg(mcbsp[id].dev, "SPCR2: 0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, SPCR2));
+	dev_dbg(mcbsp[id].dev, "SPCR1: 0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, SPCR1));
+	dev_dbg(mcbsp[id].dev, "RCR2:  0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, RCR2));
+	dev_dbg(mcbsp[id].dev, "RCR1:  0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, RCR1));
+	dev_dbg(mcbsp[id].dev, "XCR2:  0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, XCR2));
+	dev_dbg(mcbsp[id].dev, "XCR1:  0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, XCR1));
+	dev_dbg(mcbsp[id].dev, "SRGR2: 0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, SRGR2));
+	dev_dbg(mcbsp[id].dev, "SRGR1: 0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, SRGR1));
+	dev_dbg(mcbsp[id].dev, "PCR0:  0x%04x\n",
+			OMAP_MCBSP_READ(mcbsp[id].io_base, PCR0));
+	dev_dbg(mcbsp[id].dev, "***********************\n");
 }
 
 static irqreturn_t omap_mcbsp_tx_irq_handler(int irq, void *dev_id)
 {
 	struct omap_mcbsp *mcbsp_tx = dev_id;
 
-	DBG("TX IRQ callback : 0x%x\n",
-	    OMAP_MCBSP_READ(mcbsp_tx->io_base, SPCR2));
+	dev_dbg(mcbsp_tx->dev, "TX IRQ callback : 0x%x\n",
+		OMAP_MCBSP_READ(mcbsp_tx->io_base, SPCR2));
 
 	complete(&mcbsp_tx->tx_irq_completion);
+
 	return IRQ_HANDLED;
 }
 
@@ -111,10 +82,11 @@ static irqreturn_t omap_mcbsp_rx_irq_handler(int irq, void *dev_id)
 {
 	struct omap_mcbsp *mcbsp_rx = dev_id;
 
-	DBG("RX IRQ callback : 0x%x\n",
-	    OMAP_MCBSP_READ(mcbsp_rx->io_base, SPCR2));
+	dev_dbg(mcbsp_rx->dev, "RX IRQ callback : 0x%x\n",
+		OMAP_MCBSP_READ(mcbsp_rx->io_base, SPCR2));
 
 	complete(&mcbsp_rx->rx_irq_completion);
+
 	return IRQ_HANDLED;
 }
 
@@ -122,8 +94,8 @@ static void omap_mcbsp_tx_dma_callback(int lch, u16 ch_status, void *data)
 {
 	struct omap_mcbsp *mcbsp_dma_tx = data;
 
-	DBG("TX DMA callback : 0x%x\n",
-	    OMAP_MCBSP_READ(mcbsp_dma_tx->io_base, SPCR2));
+	dev_dbg(mcbsp_dma_tx->dev, "TX DMA callback : 0x%x\n",
+		OMAP_MCBSP_READ(mcbsp_dma_tx->io_base, SPCR2));
 
 	/* We can free the channels */
 	omap_free_dma(mcbsp_dma_tx->dma_tx_lch);
@@ -136,8 +108,8 @@ static void omap_mcbsp_rx_dma_callback(int lch, u16 ch_status, void *data)
 {
 	struct omap_mcbsp *mcbsp_dma_rx = data;
 
-	DBG("RX DMA callback : 0x%x\n",
-	    OMAP_MCBSP_READ(mcbsp_dma_rx->io_base, SPCR2));
+	dev_dbg(mcbsp_dma_rx->dev, "RX DMA callback : 0x%x\n",
+		OMAP_MCBSP_READ(mcbsp_dma_rx->io_base, SPCR2));
 
 	/* We can free the channels */
 	omap_free_dma(mcbsp_dma_rx->dma_rx_lch);
@@ -146,19 +118,24 @@ static void omap_mcbsp_rx_dma_callback(int lch, u16 ch_status, void *data)
 	complete(&mcbsp_dma_rx->rx_dma_completion);
 }
 
-
 /*
  * omap_mcbsp_config simply write a config to the
  * appropriate McBSP.
  * You either call this function or set the McBSP registers
  * by yourself before calling omap_mcbsp_start().
  */
-
-void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg * config)
+void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg *config)
 {
-	u32 io_base = mcbsp[id].io_base;
+	u32 io_base;
+
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+		return;
+	}
 
-	DBG("OMAP-McBSP: McBSP%d  io_base: 0x%8x\n", id+1, io_base);
+	io_base = mcbsp[id].io_base;
+	dev_dbg(mcbsp[id].dev, "Configuring McBSP%d  io_base: 0x%8x\n",
+			mcbsp[id].id, io_base);
 
 	/* We write the given config */
 	OMAP_MCBSP_WRITE(io_base, SPCR2, config->spcr2);
@@ -173,83 +150,7 @@ void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg * config
 	OMAP_MCBSP_WRITE(io_base, MCR1, config->mcr1);
 	OMAP_MCBSP_WRITE(io_base, PCR0, config->pcr0);
 }
-
-
-
-static int omap_mcbsp_check(unsigned int id)
-{
-	if (cpu_is_omap730()) {
-		if (id > OMAP_MAX_MCBSP_COUNT - 1) {
-		       printk(KERN_ERR "OMAP-McBSP: McBSP%d doesn't exist\n", id + 1);
-		       return -1;
-		}
-		return 0;
-	}
-
-	if (cpu_is_omap15xx() || cpu_is_omap16xx() || cpu_is_omap24xx()) {
-		if (id > OMAP_MAX_MCBSP_COUNT) {
-			printk(KERN_ERR "OMAP-McBSP: McBSP%d doesn't exist\n", id + 1);
-			return -1;
-		}
-		return 0;
-	}
-
-	return -1;
-}
-
-#ifdef CONFIG_ARCH_OMAP1
-static void omap_mcbsp_dsp_request(void)
-{
-	if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
-		int ret;
-
-		ret = omap_dsp_request_mem();
-		if (ret < 0) {
-			printk(KERN_ERR "Could not get dsp memory: %i\n", ret);
-			return;
-		}
-
-		clk_enable(mcbsp_dsp_ck);
-		clk_enable(mcbsp_api_ck);
-
-		/* enable 12MHz clock to mcbsp 1 & 3 */
-		clk_enable(mcbsp_dspxor_ck);
-
-		/*
-		 * DSP external peripheral reset
-		 * FIXME: This should be moved to dsp code
-		 */
-		__raw_writew(__raw_readw(DSP_RSTCT2) | 1 | 1 << 1,
-			     DSP_RSTCT2);
-	}
-}
-
-static void omap_mcbsp_dsp_free(void)
-{
-	if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
-		omap_dsp_release_mem();
-		clk_disable(mcbsp_dspxor_ck);
-		clk_disable(mcbsp_dsp_ck);
-		clk_disable(mcbsp_api_ck);
-	}
-}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP2
-static void omap2_mcbsp2_mux_setup(void)
-{
-	if (cpu_is_omap2420()) {
-		omap_cfg_reg(Y15_24XX_MCBSP2_CLKX);
-		omap_cfg_reg(R14_24XX_MCBSP2_FSX);
-		omap_cfg_reg(W15_24XX_MCBSP2_DR);
-		omap_cfg_reg(V15_24XX_MCBSP2_DX);
-		omap_cfg_reg(V14_24XX_GPIO117);
-	}
-	/*
-	 * Need to add MUX settings for OMAP 2430 SDP
-	 */
-}
-#endif
+EXPORT_SYMBOL(omap_mcbsp_config);
 
 /*
  * We can choose between IRQ based or polled IO.
@@ -257,13 +158,16 @@ static void omap2_mcbsp2_mux_setup(void)
  */
 int omap_mcbsp_set_io_type(unsigned int id, omap_mcbsp_io_type_t io_type)
 {
-	if (omap_mcbsp_check(id) < 0)
-		return -EINVAL;
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+		return -ENODEV;
+	}
 
 	spin_lock(&mcbsp[id].lock);
 
 	if (!mcbsp[id].free) {
-		printk (KERN_ERR "OMAP-McBSP: McBSP%d is currently in use\n", id + 1);
+		dev_err(mcbsp[id].dev, "McBSP%d is currently in use\n",
+			mcbsp[id].id);
 		spin_unlock(&mcbsp[id].lock);
 		return -EINVAL;
 	}
@@ -274,38 +178,26 @@ int omap_mcbsp_set_io_type(unsigned int id, omap_mcbsp_io_type_t io_type)
 
 	return 0;
 }
+EXPORT_SYMBOL(omap_mcbsp_set_io_type);
 
 int omap_mcbsp_request(unsigned int id)
 {
 	int err;
 
-	if (omap_mcbsp_check(id) < 0)
-		return -EINVAL;
-
-#ifdef CONFIG_ARCH_OMAP1
-	/*
-	 * On 1510, 1610 and 1710, McBSP1 and McBSP3
-	 * are DSP public peripherals.
-	 */
-	if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3)
-		omap_mcbsp_dsp_request();
-#endif
-
-#ifdef CONFIG_ARCH_OMAP2
-	if (cpu_is_omap24xx()) {
-		if (id == OMAP_MCBSP1) {
-			clk_enable(mcbsp1_ick);
-			clk_enable(mcbsp1_fck);
-		} else {
-			clk_enable(mcbsp2_ick);
-			clk_enable(mcbsp2_fck);
-		}
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+		return -ENODEV;
 	}
-#endif
+
+	if (mcbsp[id].pdata->ops->request)
+		mcbsp[id].pdata->ops->request(id);
+
+	clk_enable(mcbsp[id].clk);
 
 	spin_lock(&mcbsp[id].lock);
 	if (!mcbsp[id].free) {
-		printk (KERN_ERR "OMAP-McBSP: McBSP%d is currently in use\n", id + 1);
+		dev_err(mcbsp[id].dev, "McBSP%d is currently in use\n",
+			mcbsp[id].id);
 		spin_unlock(&mcbsp[id].lock);
 		return -1;
 	}
@@ -315,24 +207,23 @@ int omap_mcbsp_request(unsigned int id)
 
 	if (mcbsp[id].io_type == OMAP_MCBSP_IRQ_IO) {
 		/* We need to get IRQs here */
-		err = request_irq(mcbsp[id].tx_irq, omap_mcbsp_tx_irq_handler, 0,
-				  "McBSP",
-				  (void *) (&mcbsp[id]));
+		err = request_irq(mcbsp[id].tx_irq, omap_mcbsp_tx_irq_handler,
+					0, "McBSP", (void *) (&mcbsp[id]));
 		if (err != 0) {
-			printk(KERN_ERR "OMAP-McBSP: Unable to request TX IRQ %d for McBSP%d\n",
-			       mcbsp[id].tx_irq, mcbsp[id].id);
+			dev_err(mcbsp[id].dev, "Unable to request TX IRQ %d "
+					"for McBSP%d\n", mcbsp[id].tx_irq,
+					mcbsp[id].id);
 			return err;
 		}
 
 		init_completion(&(mcbsp[id].tx_irq_completion));
 
-
-		err = request_irq(mcbsp[id].rx_irq, omap_mcbsp_rx_irq_handler, 0,
-				  "McBSP",
-				  (void *) (&mcbsp[id]));
+		err = request_irq(mcbsp[id].rx_irq, omap_mcbsp_rx_irq_handler,
+					0, "McBSP", (void *) (&mcbsp[id]));
 		if (err != 0) {
-			printk(KERN_ERR "OMAP-McBSP: Unable to request RX IRQ %d for McBSP%d\n",
-			       mcbsp[id].rx_irq, mcbsp[id].id);
+			dev_err(mcbsp[id].dev, "Unable to request RX IRQ %d "
+					"for McBSP%d\n", mcbsp[id].rx_irq,
+					mcbsp[id].id);
 			free_irq(mcbsp[id].tx_irq, (void *) (&mcbsp[id]));
 			return err;
 		}
@@ -341,36 +232,25 @@ int omap_mcbsp_request(unsigned int id)
 	}
 
 	return 0;
-
 }
+EXPORT_SYMBOL(omap_mcbsp_request);
 
 void omap_mcbsp_free(unsigned int id)
 {
-	if (omap_mcbsp_check(id) < 0)
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
 		return;
-
-#ifdef CONFIG_ARCH_OMAP1
-	if (cpu_class_is_omap1()) {
-		if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3)
-			omap_mcbsp_dsp_free();
 	}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP2
-	if (cpu_is_omap24xx()) {
-		if (id == OMAP_MCBSP1) {
-			clk_disable(mcbsp1_ick);
-			clk_disable(mcbsp1_fck);
-		} else {
-			clk_disable(mcbsp2_ick);
-			clk_disable(mcbsp2_fck);
-		}
-	}
-#endif
+
+	if (mcbsp[id].pdata->ops->free)
+		mcbsp[id].pdata->ops->free(id);
+
+	clk_disable(mcbsp[id].clk);
 
 	spin_lock(&mcbsp[id].lock);
 	if (mcbsp[id].free) {
-		printk (KERN_ERR "OMAP-McBSP: McBSP%d was not reserved\n", id + 1);
+		dev_err(mcbsp[id].dev, "McBSP%d was not reserved\n",
+			mcbsp[id].id);
 		spin_unlock(&mcbsp[id].lock);
 		return;
 	}
@@ -384,6 +264,7 @@ void omap_mcbsp_free(unsigned int id)
 		free_irq(mcbsp[id].tx_irq, (void *) (&mcbsp[id]));
 	}
 }
+EXPORT_SYMBOL(omap_mcbsp_free);
 
 /*
  * Here we start the McBSP, by enabling the sample
@@ -395,13 +276,15 @@ void omap_mcbsp_start(unsigned int id)
 	u32 io_base;
 	u16 w;
 
-	if (omap_mcbsp_check(id) < 0)
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
 		return;
+	}
 
 	io_base = mcbsp[id].io_base;
 
-	mcbsp[id].rx_word_length = ((OMAP_MCBSP_READ(io_base, RCR1) >> 5) & 0x7);
-	mcbsp[id].tx_word_length = ((OMAP_MCBSP_READ(io_base, XCR1) >> 5) & 0x7);
+	mcbsp[id].rx_word_length = (OMAP_MCBSP_READ(io_base, RCR1) >> 5) & 0x7;
+	mcbsp[id].tx_word_length = (OMAP_MCBSP_READ(io_base, XCR1) >> 5) & 0x7;
 
 	/* Start the sample generator */
 	w = OMAP_MCBSP_READ(io_base, SPCR2);
@@ -422,20 +305,22 @@ void omap_mcbsp_start(unsigned int id)
 
 	/* Dump McBSP Regs */
 	omap_mcbsp_dump_reg(id);
-
 }
+EXPORT_SYMBOL(omap_mcbsp_start);
 
 void omap_mcbsp_stop(unsigned int id)
 {
 	u32 io_base;
 	u16 w;
 
-	if (omap_mcbsp_check(id) < 0)
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
 		return;
+	}
 
 	io_base = mcbsp[id].io_base;
 
-        /* Reset transmitter */
+	/* Reset transmitter */
 	w = OMAP_MCBSP_READ(io_base, SPCR2);
 	OMAP_MCBSP_WRITE(io_base, SPCR2, w & ~(1));
 
@@ -447,12 +332,19 @@ void omap_mcbsp_stop(unsigned int id)
 	w = OMAP_MCBSP_READ(io_base, SPCR2);
 	OMAP_MCBSP_WRITE(io_base, SPCR2, w & ~(1 << 6));
 }
-
+EXPORT_SYMBOL(omap_mcbsp_stop);
 
 /* polled mcbsp i/o operations */
 int omap_mcbsp_pollwrite(unsigned int id, u16 buf)
 {
-	u32 base = mcbsp[id].io_base;
+	u32 base;
+
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+		return -ENODEV;
+	}
+
+	base = mcbsp[id].io_base;
 	writew(buf, base + OMAP_MCBSP_REG_DXR1);
 	/* if frame sync error - clear the error */
 	if (readw(base + OMAP_MCBSP_REG_SPCR2) & XSYNC_ERR) {
@@ -474,18 +366,27 @@ int omap_mcbsp_pollwrite(unsigned int id, u16 buf)
 				       (XRST),
 				       base + OMAP_MCBSP_REG_SPCR2);
 				udelay(10);
-				printk(KERN_ERR
-				       " Could not write to McBSP Register\n");
+				dev_err(mcbsp[id].dev, "Could not write to"
+					" McBSP%d Register\n", mcbsp[id].id);
 				return -2;
 			}
 		}
 	}
+
 	return 0;
 }
+EXPORT_SYMBOL(omap_mcbsp_pollwrite);
 
-int omap_mcbsp_pollread(unsigned int id, u16 * buf)
+int omap_mcbsp_pollread(unsigned int id, u16 *buf)
 {
-	u32 base = mcbsp[id].io_base;
+	u32 base;
+
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+		return -ENODEV;
+	}
+
+	base = mcbsp[id].io_base;
 	/* if frame sync error - clear the error */
 	if (readw(base + OMAP_MCBSP_REG_SPCR1) & RSYNC_ERR) {
 		/* clear error */
@@ -506,15 +407,17 @@ int omap_mcbsp_pollread(unsigned int id, u16 * buf)
 				       (RRST),
 				       base + OMAP_MCBSP_REG_SPCR1);
 				udelay(10);
-				printk(KERN_ERR
-				       " Could not read from McBSP Register\n");
+				dev_err(mcbsp[id].dev, "Could not read from"
+					" McBSP%d Register\n", mcbsp[id].id);
 				return -2;
 			}
 		}
 	}
 	*buf = readw(base + OMAP_MCBSP_REG_DRR1);
+
 	return 0;
 }
+EXPORT_SYMBOL(omap_mcbsp_pollread);
 
 /*
  * IRQ based word transmission.
@@ -522,12 +425,15 @@ int omap_mcbsp_pollread(unsigned int id, u16 * buf)
 void omap_mcbsp_xmit_word(unsigned int id, u32 word)
 {
 	u32 io_base;
-	omap_mcbsp_word_length word_length = mcbsp[id].tx_word_length;
+	omap_mcbsp_word_length word_length;
 
-	if (omap_mcbsp_check(id) < 0)
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
 		return;
+	}
 
 	io_base = mcbsp[id].io_base;
+	word_length = mcbsp[id].tx_word_length;
 
 	wait_for_completion(&(mcbsp[id].tx_irq_completion));
 
@@ -535,16 +441,20 @@ void omap_mcbsp_xmit_word(unsigned int id, u32 word)
 		OMAP_MCBSP_WRITE(io_base, DXR2, word >> 16);
 	OMAP_MCBSP_WRITE(io_base, DXR1, word & 0xffff);
 }
+EXPORT_SYMBOL(omap_mcbsp_xmit_word);
 
 u32 omap_mcbsp_recv_word(unsigned int id)
 {
 	u32 io_base;
 	u16 word_lsb, word_msb = 0;
-	omap_mcbsp_word_length word_length = mcbsp[id].rx_word_length;
+	omap_mcbsp_word_length word_length;
 
-	if (omap_mcbsp_check(id) < 0)
-		return -EINVAL;
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+		return -ENODEV;
+	}
 
+	word_length = mcbsp[id].rx_word_length;
 	io_base = mcbsp[id].io_base;
 
 	wait_for_completion(&(mcbsp[id].rx_irq_completion));
@@ -555,15 +465,24 @@ u32 omap_mcbsp_recv_word(unsigned int id)
 
 	return (word_lsb | (word_msb << 16));
 }
-
+EXPORT_SYMBOL(omap_mcbsp_recv_word);
 
 int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word)
 {
-	u32 io_base = mcbsp[id].io_base;
-	omap_mcbsp_word_length tx_word_length = mcbsp[id].tx_word_length;
-	omap_mcbsp_word_length rx_word_length = mcbsp[id].rx_word_length;
+	u32 io_base;
+	omap_mcbsp_word_length tx_word_length;
+	omap_mcbsp_word_length rx_word_length;
 	u16 spcr2, spcr1, attempts = 0, word_lsb, word_msb = 0;
 
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+		return -ENODEV;
+	}
+
+	io_base = mcbsp[id].io_base;
+	tx_word_length = mcbsp[id].tx_word_length;
+	rx_word_length = mcbsp[id].rx_word_length;
+
 	if (tx_word_length != rx_word_length)
 		return -EINVAL;
 
@@ -577,7 +496,8 @@ int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word)
 			udelay(10);
 			OMAP_MCBSP_WRITE(io_base, SPCR2, spcr2 | XRST);
 			udelay(10);
-			printk("McBSP transmitter not ready\n");
+			dev_err(mcbsp[id].dev, "McBSP%d transmitter not "
+				"ready\n", mcbsp[id].id);
 			return -EAGAIN;
 		}
 	}
@@ -597,7 +517,8 @@ int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word)
 			udelay(10);
 			OMAP_MCBSP_WRITE(io_base, SPCR1, spcr1 | RRST);
 			udelay(10);
-			printk("McBSP receiver not ready\n");
+			dev_err(mcbsp[id].dev, "McBSP%d receiver not "
+				"ready\n", mcbsp[id].id);
 			return -EAGAIN;
 		}
 	}
@@ -609,14 +530,24 @@ int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word)
 
 	return 0;
 }
+EXPORT_SYMBOL(omap_mcbsp_spi_master_xmit_word_poll);
 
-int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 * word)
+int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 *word)
 {
-	u32 io_base = mcbsp[id].io_base, clock_word = 0;
-	omap_mcbsp_word_length tx_word_length = mcbsp[id].tx_word_length;
-	omap_mcbsp_word_length rx_word_length = mcbsp[id].rx_word_length;
+	u32 io_base, clock_word = 0;
+	omap_mcbsp_word_length tx_word_length;
+	omap_mcbsp_word_length rx_word_length;
 	u16 spcr2, spcr1, attempts = 0, word_lsb, word_msb = 0;
 
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+		return -ENODEV;
+	}
+
+	io_base = mcbsp[id].io_base;
+	tx_word_length = mcbsp[id].tx_word_length;
+	rx_word_length = mcbsp[id].rx_word_length;
+
 	if (tx_word_length != rx_word_length)
 		return -EINVAL;
 
@@ -630,7 +561,8 @@ int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 * word)
 			udelay(10);
 			OMAP_MCBSP_WRITE(io_base, SPCR2, spcr2 | XRST);
 			udelay(10);
-			printk("McBSP transmitter not ready\n");
+			dev_err(mcbsp[id].dev, "McBSP%d transmitter not "
+				"ready\n", mcbsp[id].id);
 			return -EAGAIN;
 		}
 	}
@@ -650,7 +582,8 @@ int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 * word)
 			udelay(10);
 			OMAP_MCBSP_WRITE(io_base, SPCR1, spcr1 | RRST);
 			udelay(10);
-			printk("McBSP receiver not ready\n");
+			dev_err(mcbsp[id].dev, "McBSP%d receiver not "
+				"ready\n", mcbsp[id].id);
 			return -EAGAIN;
 		}
 	}
@@ -664,7 +597,7 @@ int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 * word)
 
 	return 0;
 }
-
+EXPORT_SYMBOL(omap_mcbsp_spi_master_recv_word_poll);
 
 /*
  * Simple DMA based buffer rx/tx routines.
@@ -673,25 +606,32 @@ int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 * word)
  * For anything fancier, you should use your own customized DMA
  * routines and callbacks.
  */
-int omap_mcbsp_xmit_buffer(unsigned int id, dma_addr_t buffer, unsigned int length)
+int omap_mcbsp_xmit_buffer(unsigned int id, dma_addr_t buffer,
+				unsigned int length)
 {
 	int dma_tx_ch;
 	int src_port = 0;
 	int dest_port = 0;
 	int sync_dev = 0;
 
-	if (omap_mcbsp_check(id) < 0)
-		return -EINVAL;
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+		return -ENODEV;
+	}
 
-	if (omap_request_dma(mcbsp[id].dma_tx_sync, "McBSP TX", omap_mcbsp_tx_dma_callback,
-			     &mcbsp[id],
-			     &dma_tx_ch)) {
-		printk("OMAP-McBSP: Unable to request DMA channel for McBSP%d TX. Trying IRQ based TX\n", id+1);
+	if (omap_request_dma(mcbsp[id].dma_tx_sync, "McBSP TX",
+				omap_mcbsp_tx_dma_callback,
+				&mcbsp[id],
+				&dma_tx_ch)) {
+		dev_err(mcbsp[id].dev, " Unable to request DMA channel for "
+				"McBSP%d TX. Trying IRQ based TX\n",
+				mcbsp[id].id);
 		return -EAGAIN;
 	}
 	mcbsp[id].dma_tx_lch = dma_tx_ch;
 
-	DBG("TX DMA on channel %d\n", dma_tx_ch);
+	dev_err(mcbsp[id].dev, "McBSP%d TX DMA on channel %d\n", mcbsp[id].id,
+		dma_tx_ch);
 
 	init_completion(&(mcbsp[id].tx_dma_completion));
 
@@ -699,7 +639,7 @@ int omap_mcbsp_xmit_buffer(unsigned int id, dma_addr_t buffer, unsigned int leng
 		src_port = OMAP_DMA_PORT_TIPB;
 		dest_port = OMAP_DMA_PORT_EMIFF;
 	}
-	if (cpu_is_omap24xx())
+	if (cpu_class_is_omap2())
 		sync_dev = mcbsp[id].dma_tx_sync;
 
 	omap_set_dma_transfer_params(mcbsp[id].dma_tx_lch,
@@ -722,29 +662,37 @@ int omap_mcbsp_xmit_buffer(unsigned int id, dma_addr_t buffer, unsigned int leng
 
 	omap_start_dma(mcbsp[id].dma_tx_lch);
 	wait_for_completion(&(mcbsp[id].tx_dma_completion));
+
 	return 0;
 }
+EXPORT_SYMBOL(omap_mcbsp_xmit_buffer);
 
-
-int omap_mcbsp_recv_buffer(unsigned int id, dma_addr_t buffer, unsigned int length)
+int omap_mcbsp_recv_buffer(unsigned int id, dma_addr_t buffer,
+				unsigned int length)
 {
 	int dma_rx_ch;
 	int src_port = 0;
 	int dest_port = 0;
 	int sync_dev = 0;
 
-	if (omap_mcbsp_check(id) < 0)
-		return -EINVAL;
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+		return -ENODEV;
+	}
 
-	if (omap_request_dma(mcbsp[id].dma_rx_sync, "McBSP RX", omap_mcbsp_rx_dma_callback,
-			     &mcbsp[id],
-			     &dma_rx_ch)) {
-		printk("Unable to request DMA channel for McBSP%d RX. Trying IRQ based RX\n", id+1);
+	if (omap_request_dma(mcbsp[id].dma_rx_sync, "McBSP RX",
+				omap_mcbsp_rx_dma_callback,
+				&mcbsp[id],
+				&dma_rx_ch)) {
+		dev_err(mcbsp[id].dev, "Unable to request DMA channel for "
+				"McBSP%d RX. Trying IRQ based RX\n",
+				mcbsp[id].id);
 		return -EAGAIN;
 	}
 	mcbsp[id].dma_rx_lch = dma_rx_ch;
 
-	DBG("RX DMA on channel %d\n", dma_rx_ch);
+	dev_err(mcbsp[id].dev, "McBSP%d RX DMA on channel %d\n", mcbsp[id].id,
+		dma_rx_ch);
 
 	init_completion(&(mcbsp[id].rx_dma_completion));
 
@@ -752,14 +700,14 @@ int omap_mcbsp_recv_buffer(unsigned int id, dma_addr_t buffer, unsigned int leng
 		src_port = OMAP_DMA_PORT_TIPB;
 		dest_port = OMAP_DMA_PORT_EMIFF;
 	}
-	if (cpu_is_omap24xx())
+	if (cpu_class_is_omap2())
 		sync_dev = mcbsp[id].dma_rx_sync;
 
 	omap_set_dma_transfer_params(mcbsp[id].dma_rx_lch,
-				     OMAP_DMA_DATA_TYPE_S16,
-				     length >> 1, 1,
-				     OMAP_DMA_SYNC_ELEMENT,
-	 sync_dev, 0);
+					OMAP_DMA_DATA_TYPE_S16,
+					length >> 1, 1,
+					OMAP_DMA_SYNC_ELEMENT,
+					sync_dev, 0);
 
 	omap_set_dma_src_params(mcbsp[id].dma_rx_lch,
 				src_port,
@@ -768,16 +716,17 @@ int omap_mcbsp_recv_buffer(unsigned int id, dma_addr_t buffer, unsigned int leng
 				0, 0);
 
 	omap_set_dma_dest_params(mcbsp[id].dma_rx_lch,
-				 dest_port,
-				 OMAP_DMA_AMODE_POST_INC,
-				 buffer,
-				 0, 0);
+					dest_port,
+					OMAP_DMA_AMODE_POST_INC,
+					buffer,
+					0, 0);
 
 	omap_start_dma(mcbsp[id].dma_rx_lch);
 	wait_for_completion(&(mcbsp[id].rx_dma_completion));
+
 	return 0;
 }
-
+EXPORT_SYMBOL(omap_mcbsp_recv_buffer);
 
 /*
  * SPI wrapper.
@@ -785,12 +734,15 @@ int omap_mcbsp_recv_buffer(unsigned int id, dma_addr_t buffer, unsigned int leng
  * this wrapper just need an omap_mcbsp_spi_cfg structure as an input.
  * Once this is done, you can call omap_mcbsp_start().
  */
-void omap_mcbsp_set_spi_mode(unsigned int id, const struct omap_mcbsp_spi_cfg * spi_cfg)
+void omap_mcbsp_set_spi_mode(unsigned int id,
+				const struct omap_mcbsp_spi_cfg *spi_cfg)
 {
 	struct omap_mcbsp_reg_cfg mcbsp_cfg;
 
-	if (omap_mcbsp_check(id) < 0)
+	if (!omap_mcbsp_check_valid_id(id)) {
+		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
 		return;
+	}
 
 	memset(&mcbsp_cfg, 0, sizeof(struct omap_mcbsp_reg_cfg));
 
@@ -798,7 +750,7 @@ void omap_mcbsp_set_spi_mode(unsigned int id, const struct omap_mcbsp_spi_cfg *
 	mcbsp_cfg.rcr1 |= (RWDLEN1(spi_cfg->word_length) | RFRLEN1(0));
 	mcbsp_cfg.xcr1 |= (XWDLEN1(spi_cfg->word_length) | XFRLEN1(0));
 
-        /* Clock stop mode */
+	/* Clock stop mode */
 	if (spi_cfg->clk_stp_mode == OMAP_MCBSP_CLK_STP_MODE_NO_DELAY)
 		mcbsp_cfg.spcr1 |= (1 << 12);
 	else
@@ -827,13 +779,12 @@ void omap_mcbsp_set_spi_mode(unsigned int id, const struct omap_mcbsp_spi_cfg *
 
 	if (spi_cfg->spi_mode == OMAP_MCBSP_SPI_MASTER) {
 		mcbsp_cfg.pcr0 |= CLKXM;
-		mcbsp_cfg.srgr1 |= CLKGDV(spi_cfg->clk_div -1);
+		mcbsp_cfg.srgr1 |= CLKGDV(spi_cfg->clk_div - 1);
 		mcbsp_cfg.pcr0 |= FSXM;
 		mcbsp_cfg.srgr2 &= ~FSGM;
 		mcbsp_cfg.xcr2 |= XDATDLY(1);
 		mcbsp_cfg.rcr2 |= RDATDLY(1);
-	}
-	else {
+	} else {
 		mcbsp_cfg.pcr0 &= ~CLKXM;
 		mcbsp_cfg.srgr1 |= CLKGDV(1);
 		mcbsp_cfg.pcr0 &= ~FSXM;
@@ -846,199 +797,99 @@ void omap_mcbsp_set_spi_mode(unsigned int id, const struct omap_mcbsp_spi_cfg *
 
 	omap_mcbsp_config(id, &mcbsp_cfg);
 }
-
+EXPORT_SYMBOL(omap_mcbsp_set_spi_mode);
 
 /*
  * McBSP1 and McBSP3 are directly mapped on 1610 and 1510.
  * 730 has only 2 McBSP, and both of them are MPU peripherals.
  */
-struct omap_mcbsp_info {
-	u32 virt_base;
-	u8 dma_rx_sync, dma_tx_sync;
-	u16 rx_irq, tx_irq;
-};
+static int __init omap_mcbsp_probe(struct platform_device *pdev)
+{
+	struct omap_mcbsp_platform_data *pdata = pdev->dev.platform_data;
+	int id = pdev->id - 1;
+	int ret = 0;
 
-#ifdef CONFIG_ARCH_OMAP730
-static const struct omap_mcbsp_info mcbsp_730[] = {
-	[0] = { .virt_base = io_p2v(OMAP730_MCBSP1_BASE),
-		.dma_rx_sync = OMAP_DMA_MCBSP1_RX,
-		.dma_tx_sync = OMAP_DMA_MCBSP1_TX,
-		.rx_irq = INT_730_McBSP1RX,
-		.tx_irq = INT_730_McBSP1TX },
-	[1] = { .virt_base = io_p2v(OMAP730_MCBSP2_BASE),
-		.dma_rx_sync = OMAP_DMA_MCBSP3_RX,
-		.dma_tx_sync = OMAP_DMA_MCBSP3_TX,
-		.rx_irq = INT_730_McBSP2RX,
-		.tx_irq = INT_730_McBSP2TX },
-};
-#endif
-
-#ifdef CONFIG_ARCH_OMAP15XX
-static const struct omap_mcbsp_info mcbsp_1510[] = {
-	[0] = { .virt_base = OMAP1510_MCBSP1_BASE,
-		.dma_rx_sync = OMAP_DMA_MCBSP1_RX,
-		.dma_tx_sync = OMAP_DMA_MCBSP1_TX,
-		.rx_irq = INT_McBSP1RX,
-		.tx_irq = INT_McBSP1TX },
-	[1] = { .virt_base = io_p2v(OMAP1510_MCBSP2_BASE),
-		.dma_rx_sync = OMAP_DMA_MCBSP2_RX,
-		.dma_tx_sync = OMAP_DMA_MCBSP2_TX,
-		.rx_irq = INT_1510_SPI_RX,
-		.tx_irq = INT_1510_SPI_TX },
-	[2] = { .virt_base = OMAP1510_MCBSP3_BASE,
-		.dma_rx_sync = OMAP_DMA_MCBSP3_RX,
-		.dma_tx_sync = OMAP_DMA_MCBSP3_TX,
-		.rx_irq = INT_McBSP3RX,
-		.tx_irq = INT_McBSP3TX },
-};
-#endif
-
-#if defined(CONFIG_ARCH_OMAP16XX)
-static const struct omap_mcbsp_info mcbsp_1610[] = {
-	[0] = { .virt_base = OMAP1610_MCBSP1_BASE,
-		.dma_rx_sync = OMAP_DMA_MCBSP1_RX,
-		.dma_tx_sync = OMAP_DMA_MCBSP1_TX,
-		.rx_irq = INT_McBSP1RX,
-		.tx_irq = INT_McBSP1TX },
-	[1] = { .virt_base = io_p2v(OMAP1610_MCBSP2_BASE),
-		.dma_rx_sync = OMAP_DMA_MCBSP2_RX,
-		.dma_tx_sync = OMAP_DMA_MCBSP2_TX,
-		.rx_irq = INT_1610_McBSP2_RX,
-		.tx_irq = INT_1610_McBSP2_TX },
-	[2] = { .virt_base = OMAP1610_MCBSP3_BASE,
-		.dma_rx_sync = OMAP_DMA_MCBSP3_RX,
-		.dma_tx_sync = OMAP_DMA_MCBSP3_TX,
-		.rx_irq = INT_McBSP3RX,
-		.tx_irq = INT_McBSP3TX },
-};
-#endif
-
-#if defined(CONFIG_ARCH_OMAP24XX)
-static const struct omap_mcbsp_info mcbsp_24xx[] = {
-	[0] = { .virt_base = IO_ADDRESS(OMAP24XX_MCBSP1_BASE),
-		.dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX,
-		.dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX,
-		.rx_irq = INT_24XX_MCBSP1_IRQ_RX,
-		.tx_irq = INT_24XX_MCBSP1_IRQ_TX,
-		},
-	[1] = { .virt_base = IO_ADDRESS(OMAP24XX_MCBSP2_BASE),
-		.dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX,
-		.dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX,
-		.rx_irq = INT_24XX_MCBSP2_IRQ_RX,
-		.tx_irq = INT_24XX_MCBSP2_IRQ_TX,
-		},
-};
-#endif
+	if (!pdata) {
+		dev_err(&pdev->dev, "McBSP device initialized without"
+				"platform data\n");
+		ret = -EINVAL;
+		goto exit;
+	}
+
+	dev_dbg(&pdev->dev, "Initializing OMAP McBSP (%d).\n", pdev->id);
+
+	if (id >= OMAP_MAX_MCBSP_COUNT) {
+		dev_err(&pdev->dev, "Invalid McBSP device id (%d)\n", id);
+		ret = -EINVAL;
+		goto exit;
+	}
+
+	spin_lock_init(&mcbsp[id].lock);
+	mcbsp[id].id = id + 1;
+	mcbsp[id].free = 1;
+	mcbsp[id].dma_tx_lch = -1;
+	mcbsp[id].dma_rx_lch = -1;
+
+	mcbsp[id].io_base = pdata->virt_base;
+	/* Default I/O is IRQ based */
+	mcbsp[id].io_type = OMAP_MCBSP_IRQ_IO;
+	mcbsp[id].tx_irq = pdata->tx_irq;
+	mcbsp[id].rx_irq = pdata->rx_irq;
+	mcbsp[id].dma_rx_sync = pdata->dma_rx_sync;
+	mcbsp[id].dma_tx_sync = pdata->dma_tx_sync;
+
+	if (pdata->clk_name)
+		mcbsp[id].clk = clk_get(&pdev->dev, pdata->clk_name);
+	if (IS_ERR(mcbsp[id].clk)) {
+		mcbsp[id].free = 0;
+		dev_err(&pdev->dev,
+			"Invalid clock configuration for McBSP%d.\n",
+			mcbsp[id].id);
+		ret = -EINVAL;
+		goto exit;
+	}
+
+	mcbsp[id].pdata = pdata;
+	mcbsp[id].dev = &pdev->dev;
+	platform_set_drvdata(pdev, &mcbsp[id]);
+
+exit:
+	return ret;
+}
 
-static int __init omap_mcbsp_init(void)
+static int omap_mcbsp_remove(struct platform_device *pdev)
 {
-	int mcbsp_count = 0, i;
-	static const struct omap_mcbsp_info *mcbsp_info;
+	struct omap_mcbsp *mcbsp = platform_get_drvdata(pdev);
 
-	printk("Initializing OMAP McBSP system\n");
+	platform_set_drvdata(pdev, NULL);
+	if (mcbsp) {
 
-#ifdef CONFIG_ARCH_OMAP1
-	mcbsp_dsp_ck = clk_get(0, "dsp_ck");
-	if (IS_ERR(mcbsp_dsp_ck)) {
-		printk(KERN_ERR "mcbsp: could not acquire dsp_ck handle.\n");
-		return PTR_ERR(mcbsp_dsp_ck);
-	}
-	mcbsp_api_ck = clk_get(0, "api_ck");
-	if (IS_ERR(mcbsp_api_ck)) {
-		printk(KERN_ERR "mcbsp: could not acquire api_ck handle.\n");
-		return PTR_ERR(mcbsp_api_ck);
-	}
-	mcbsp_dspxor_ck = clk_get(0, "dspxor_ck");
-	if (IS_ERR(mcbsp_dspxor_ck)) {
-		printk(KERN_ERR "mcbsp: could not acquire dspxor_ck handle.\n");
-		return PTR_ERR(mcbsp_dspxor_ck);
-	}
-#endif
-#ifdef CONFIG_ARCH_OMAP2
-	mcbsp1_ick = clk_get(0, "mcbsp1_ick");
-	if (IS_ERR(mcbsp1_ick)) {
-		printk(KERN_ERR "mcbsp: could not acquire mcbsp1_ick handle.\n");
-		return PTR_ERR(mcbsp1_ick);
-	}
-	mcbsp1_fck = clk_get(0, "mcbsp1_fck");
-	if (IS_ERR(mcbsp1_fck)) {
-		printk(KERN_ERR "mcbsp: could not acquire mcbsp1_fck handle.\n");
-		return PTR_ERR(mcbsp1_fck);
-	}
-	mcbsp2_ick = clk_get(0, "mcbsp2_ick");
-	if (IS_ERR(mcbsp2_ick)) {
-		printk(KERN_ERR "mcbsp: could not acquire mcbsp2_ick handle.\n");
-		return PTR_ERR(mcbsp2_ick);
-	}
-	mcbsp2_fck = clk_get(0, "mcbsp2_fck");
-	if (IS_ERR(mcbsp2_fck)) {
-		printk(KERN_ERR "mcbsp: could not acquire mcbsp2_fck handle.\n");
-		return PTR_ERR(mcbsp2_fck);
-	}
-#endif
+		if (mcbsp->pdata && mcbsp->pdata->ops &&
+				mcbsp->pdata->ops->free)
+			mcbsp->pdata->ops->free(mcbsp->id);
 
-#ifdef CONFIG_ARCH_OMAP730
-	if (cpu_is_omap730()) {
-		mcbsp_info = mcbsp_730;
-		mcbsp_count = ARRAY_SIZE(mcbsp_730);
-	}
-#endif
-#ifdef CONFIG_ARCH_OMAP15XX
-	if (cpu_is_omap15xx()) {
-		mcbsp_info = mcbsp_1510;
-		mcbsp_count = ARRAY_SIZE(mcbsp_1510);
-	}
-#endif
-#if defined(CONFIG_ARCH_OMAP16XX)
-	if (cpu_is_omap16xx()) {
-		mcbsp_info = mcbsp_1610;
-		mcbsp_count = ARRAY_SIZE(mcbsp_1610);
-	}
-#endif
-#if defined(CONFIG_ARCH_OMAP24XX)
-	if (cpu_is_omap24xx()) {
-		mcbsp_info = mcbsp_24xx;
-		mcbsp_count = ARRAY_SIZE(mcbsp_24xx);
-		omap2_mcbsp2_mux_setup();
-	}
-#endif
-	for (i = 0; i < OMAP_MAX_MCBSP_COUNT ; i++) {
-		if (i >= mcbsp_count) {
-			mcbsp[i].io_base = 0;
-			mcbsp[i].free = 0;
-                        continue;
-		}
-		mcbsp[i].id = i + 1;
-		mcbsp[i].free = 1;
-		mcbsp[i].dma_tx_lch = -1;
-		mcbsp[i].dma_rx_lch = -1;
-
-		mcbsp[i].io_base = mcbsp_info[i].virt_base;
-		mcbsp[i].io_type = OMAP_MCBSP_IRQ_IO; /* Default I/O is IRQ based */
-		mcbsp[i].tx_irq = mcbsp_info[i].tx_irq;
-		mcbsp[i].rx_irq = mcbsp_info[i].rx_irq;
-		mcbsp[i].dma_rx_sync = mcbsp_info[i].dma_rx_sync;
-		mcbsp[i].dma_tx_sync = mcbsp_info[i].dma_tx_sync;
-		spin_lock_init(&mcbsp[i].lock);
+		clk_disable(mcbsp->clk);
+		clk_put(mcbsp->clk);
+
+		mcbsp->clk = NULL;
+		mcbsp->free = 0;
+		mcbsp->dev = NULL;
 	}
 
 	return 0;
 }
 
-arch_initcall(omap_mcbsp_init);
+static struct platform_driver omap_mcbsp_driver = {
+	.probe		= omap_mcbsp_probe,
+	.remove		= omap_mcbsp_remove,
+	.driver		= {
+		.name	= "omap-mcbsp",
+	},
+};
+
+int __init omap_mcbsp_init(void)
+{
+	/* Register the McBSP driver */
+	return platform_driver_register(&omap_mcbsp_driver);
+}
 
-EXPORT_SYMBOL(omap_mcbsp_config);
-EXPORT_SYMBOL(omap_mcbsp_request);
-EXPORT_SYMBOL(omap_mcbsp_set_io_type);
-EXPORT_SYMBOL(omap_mcbsp_free);
-EXPORT_SYMBOL(omap_mcbsp_start);
-EXPORT_SYMBOL(omap_mcbsp_stop);
-EXPORT_SYMBOL(omap_mcbsp_pollread);
-EXPORT_SYMBOL(omap_mcbsp_pollwrite);
-EXPORT_SYMBOL(omap_mcbsp_xmit_word);
-EXPORT_SYMBOL(omap_mcbsp_recv_word);
-EXPORT_SYMBOL(omap_mcbsp_xmit_buffer);
-EXPORT_SYMBOL(omap_mcbsp_recv_buffer);
-EXPORT_SYMBOL(omap_mcbsp_spi_master_xmit_word_poll);
-EXPORT_SYMBOL(omap_mcbsp_spi_master_recv_word_poll);
-EXPORT_SYMBOL(omap_mcbsp_set_spi_mode);