diff options
Diffstat (limited to 'arch/arm/plat-omap/mcbsp.c')
| -rw-r--r-- | arch/arm/plat-omap/mcbsp.c | 42 |
1 files changed, 27 insertions, 15 deletions
diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c index 014d265..e63990f 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; |