[ARM] omap: convert mcbsp to use ioremap()

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 27 insertions, 15 deletions

diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index 014d26574bb6..e63990fd923f 100644
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -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;