[ARM] omap: convert mcbsp to use ioremap()
Russell King [Thu, 4 Sep 2008 13:25:42 +0000 (14:25 +0100)]
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-omap1/mcbsp.c
arch/arm/mach-omap2/mcbsp.c
arch/arm/plat-omap/include/mach/mcbsp.h
arch/arm/plat-omap/mcbsp.c

index 2baeaeb..afb5789 100644 (file)
@@ -160,7 +160,6 @@ static struct omap_mcbsp_ops omap1_mcbsp_ops = {
 static struct omap_mcbsp_platform_data omap730_mcbsp_pdata[] = {
        {
                .phys_base      = OMAP730_MCBSP1_BASE,
-               .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,
@@ -169,7 +168,6 @@ static struct omap_mcbsp_platform_data omap730_mcbsp_pdata[] = {
        },
        {
                .phys_base      = OMAP730_MCBSP2_BASE,
-               .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,
@@ -187,7 +185,6 @@ static struct omap_mcbsp_platform_data omap730_mcbsp_pdata[] = {
 static struct omap_mcbsp_platform_data omap15xx_mcbsp_pdata[] = {
        {
                .phys_base      = OMAP1510_MCBSP1_BASE,
-               .virt_base      = OMAP1510_MCBSP1_BASE,
                .dma_rx_sync    = OMAP_DMA_MCBSP1_RX,
                .dma_tx_sync    = OMAP_DMA_MCBSP1_TX,
                .rx_irq         = INT_McBSP1RX,
@@ -197,7 +194,6 @@ static struct omap_mcbsp_platform_data omap15xx_mcbsp_pdata[] = {
                },
        {
                .phys_base      = OMAP1510_MCBSP2_BASE,
-               .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,
@@ -206,7 +202,6 @@ static struct omap_mcbsp_platform_data omap15xx_mcbsp_pdata[] = {
        },
        {
                .phys_base      = OMAP1510_MCBSP3_BASE,
-               .virt_base      = OMAP1510_MCBSP3_BASE,
                .dma_rx_sync    = OMAP_DMA_MCBSP3_RX,
                .dma_tx_sync    = OMAP_DMA_MCBSP3_TX,
                .rx_irq         = INT_McBSP3RX,
@@ -225,7 +220,6 @@ static struct omap_mcbsp_platform_data omap15xx_mcbsp_pdata[] = {
 static struct omap_mcbsp_platform_data omap16xx_mcbsp_pdata[] = {
        {
                .phys_base      = OMAP1610_MCBSP1_BASE,
-               .virt_base      = OMAP1610_MCBSP1_BASE,
                .dma_rx_sync    = OMAP_DMA_MCBSP1_RX,
                .dma_tx_sync    = OMAP_DMA_MCBSP1_TX,
                .rx_irq         = INT_McBSP1RX,
@@ -235,7 +229,6 @@ static struct omap_mcbsp_platform_data omap16xx_mcbsp_pdata[] = {
        },
        {
                .phys_base      = OMAP1610_MCBSP2_BASE,
-               .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,
@@ -244,7 +237,6 @@ static struct omap_mcbsp_platform_data omap16xx_mcbsp_pdata[] = {
        },
        {
                .phys_base      = OMAP1610_MCBSP3_BASE,
-               .virt_base      = OMAP1610_MCBSP3_BASE,
                .dma_rx_sync    = OMAP_DMA_MCBSP3_RX,
                .dma_tx_sync    = OMAP_DMA_MCBSP3_TX,
                .rx_irq         = INT_McBSP3RX,
index b261f1f..709db03 100644 (file)
@@ -135,7 +135,6 @@ static struct omap_mcbsp_ops omap2_mcbsp_ops = {
 static struct omap_mcbsp_platform_data omap24xx_mcbsp_pdata[] = {
        {
                .phys_base      = OMAP24XX_MCBSP1_BASE,
-               .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,
@@ -145,7 +144,6 @@ static struct omap_mcbsp_platform_data omap24xx_mcbsp_pdata[] = {
        },
        {
                .phys_base      = OMAP24XX_MCBSP2_BASE,
-               .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,
@@ -164,7 +162,6 @@ static struct omap_mcbsp_platform_data omap24xx_mcbsp_pdata[] = {
 static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
        {
                .phys_base      = OMAP34XX_MCBSP1_BASE,
-               .virt_base      = IO_ADDRESS(OMAP34XX_MCBSP1_BASE),
                .dma_rx_sync    = OMAP24XX_DMA_MCBSP1_RX,
                .dma_tx_sync    = OMAP24XX_DMA_MCBSP1_TX,
                .rx_irq         = INT_24XX_MCBSP1_IRQ_RX,
@@ -174,7 +171,6 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
        },
        {
                .phys_base      = OMAP34XX_MCBSP2_BASE,
-               .virt_base      = IO_ADDRESS(OMAP34XX_MCBSP2_BASE),
                .dma_rx_sync    = OMAP24XX_DMA_MCBSP2_RX,
                .dma_tx_sync    = OMAP24XX_DMA_MCBSP2_TX,
                .rx_irq         = INT_24XX_MCBSP2_IRQ_RX,
index 8fdb95e..a3074f2 100644 (file)
@@ -316,7 +316,6 @@ struct omap_mcbsp_ops {
 
 struct omap_mcbsp_platform_data {
        unsigned long phys_base;
-       u32 virt_base;
        u8 dma_rx_sync, dma_tx_sync;
        u16 rx_irq, tx_irq;
        struct omap_mcbsp_ops *ops;
@@ -326,7 +325,7 @@ struct omap_mcbsp_platform_data {
 struct omap_mcbsp {
        struct device *dev;
        unsigned long phys_base;
-       u32 io_base;
+       void __iomem *io_base;
        u8 id;
        u8 free;
        omap_mcbsp_word_length rx_word_length;
index 014d265..e63990f 100644 (file)
@@ -126,7 +126,7 @@ static void omap_mcbsp_rx_dma_callback(int lch, u16 ch_status, void *data)
  */
 void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg *config)
 {
-       u32 io_base;
+       void __iomem *io_base;
 
        if (!omap_mcbsp_check_valid_id(id)) {
                printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
@@ -134,8 +134,8 @@ void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg *config)
        }
 
        io_base = mcbsp[id].io_base;
-       dev_dbg(mcbsp[id].dev, "Configuring McBSP%d  io_base: 0x%8x\n",
-                       mcbsp[id].id, io_base);
+       dev_dbg(mcbsp[id].dev, "Configuring McBSP%d  phys_base: 0x%08lx\n",
+                       mcbsp[id].id, mcbsp[id].phys_base);
 
        /* We write the given config */
        OMAP_MCBSP_WRITE(io_base, SPCR2, config->spcr2);
@@ -273,7 +273,7 @@ EXPORT_SYMBOL(omap_mcbsp_free);
  */
 void omap_mcbsp_start(unsigned int id)
 {
-       u32 io_base;
+       void __iomem *io_base;
        u16 w;
 
        if (!omap_mcbsp_check_valid_id(id)) {
@@ -310,7 +310,7 @@ EXPORT_SYMBOL(omap_mcbsp_start);
 
 void omap_mcbsp_stop(unsigned int id)
 {
-       u32 io_base;
+       void __iomem *io_base;
        u16 w;
 
        if (!omap_mcbsp_check_valid_id(id)) {
@@ -337,7 +337,7 @@ EXPORT_SYMBOL(omap_mcbsp_stop);
 /* polled mcbsp i/o operations */
 int omap_mcbsp_pollwrite(unsigned int id, u16 buf)
 {
-       u32 base;
+       void __iomem *base;
 
        if (!omap_mcbsp_check_valid_id(id)) {
                printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
@@ -379,7 +379,7 @@ EXPORT_SYMBOL(omap_mcbsp_pollwrite);
 
 int omap_mcbsp_pollread(unsigned int id, u16 *buf)
 {
-       u32 base;
+       void __iomem *base;
 
        if (!omap_mcbsp_check_valid_id(id)) {
                printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
@@ -424,7 +424,7 @@ EXPORT_SYMBOL(omap_mcbsp_pollread);
  */
 void omap_mcbsp_xmit_word(unsigned int id, u32 word)
 {
-       u32 io_base;
+       void __iomem *io_base;
        omap_mcbsp_word_length word_length;
 
        if (!omap_mcbsp_check_valid_id(id)) {
@@ -445,7 +445,7 @@ EXPORT_SYMBOL(omap_mcbsp_xmit_word);
 
 u32 omap_mcbsp_recv_word(unsigned int id)
 {
-       u32 io_base;
+       void __iomem *io_base;
        u16 word_lsb, word_msb = 0;
        omap_mcbsp_word_length word_length;
 
@@ -469,7 +469,7 @@ EXPORT_SYMBOL(omap_mcbsp_recv_word);
 
 int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word)
 {
-       u32 io_base;
+       void __iomem *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;
@@ -534,7 +534,8 @@ EXPORT_SYMBOL(omap_mcbsp_spi_master_xmit_word_poll);
 
 int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 *word)
 {
-       u32 io_base, clock_word = 0;
+       u32 clock_word = 0;
+       void __iomem *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;
@@ -831,7 +832,12 @@ static int __init omap_mcbsp_probe(struct platform_device *pdev)
        mcbsp[id].dma_rx_lch = -1;
 
        mcbsp[id].phys_base = pdata->phys_base;
-       mcbsp[id].io_base = pdata->virt_base;
+       mcbsp[id].io_base = ioremap(pdata->phys_base, SZ_4K);
+       if (!mcbsp[id].io_base) {
+               ret = -ENOMEM;
+               goto err_ioremap;
+       }
+
        /* Default I/O is IRQ based */
        mcbsp[id].io_type = OMAP_MCBSP_IRQ_IO;
        mcbsp[id].tx_irq = pdata->tx_irq;
@@ -842,18 +848,22 @@ static int __init omap_mcbsp_probe(struct platform_device *pdev)
        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;
+               ret = PTR_ERR(mcbsp[id].clk);
+               goto err_clk;
        }
 
        mcbsp[id].pdata = pdata;
        mcbsp[id].dev = &pdev->dev;
        platform_set_drvdata(pdev, &mcbsp[id]);
+       return 0;
 
+err_clk:
+       iounmap(mcbsp[id].io_base);
+err_ioremap:
+       mcbsp[id].free = 0;
 exit:
        return ret;
 }
@@ -872,6 +882,8 @@ static int omap_mcbsp_remove(struct platform_device *pdev)
                clk_disable(mcbsp->clk);
                clk_put(mcbsp->clk);
 
+               iounmap(mcbsp->io_base);
+
                mcbsp->clk = NULL;
                mcbsp->free = 0;
                mcbsp->dev = NULL;