diff options
author | Tony Lindgren <tony@atomide.com> | 2009-10-19 15:25:15 -0700 |
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committer | Tony Lindgren <tony@atomide.com> | 2009-10-19 15:25:15 -0700 |
commit | 7e9bf8475f4cd36e71a42cf5b33626a21ffec007 (patch) | |
tree | df0e9d293cd75835babaffda183e7d40b4d5387f /arch/arm/plat-omap/dma.c | |
parent | 1b26fe868a7eb39df924f1173fb43a5c8d640822 (diff) | |
download | op-kernel-dev-7e9bf8475f4cd36e71a42cf5b33626a21ffec007.zip op-kernel-dev-7e9bf8475f4cd36e71a42cf5b33626a21ffec007.tar.gz |
omap: Use ioremap in dma.c
Use ioremap in dma.c
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/plat-omap/dma.c')
-rw-r--r-- | arch/arm/plat-omap/dma.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 0eb676d..034686d 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -2347,40 +2347,46 @@ EXPORT_SYMBOL(omap_stop_lcd_dma); static int __init omap_init_dma(void) { + unsigned long base; int ch, r; if (cpu_class_is_omap1()) { - omap_dma_base = OMAP1_IO_ADDRESS(OMAP1_DMA_BASE); + base = OMAP1_DMA_BASE; dma_lch_count = OMAP1_LOGICAL_DMA_CH_COUNT; } else if (cpu_is_omap24xx()) { - omap_dma_base = OMAP2_IO_ADDRESS(OMAP24XX_DMA4_BASE); + base = OMAP24XX_DMA4_BASE; dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT; } else if (cpu_is_omap34xx()) { - omap_dma_base = OMAP2_IO_ADDRESS(OMAP34XX_DMA4_BASE); + base = OMAP34XX_DMA4_BASE; dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT; } else if (cpu_is_omap44xx()) { - omap_dma_base = OMAP2_IO_ADDRESS(OMAP44XX_DMA4_BASE); + base = OMAP44XX_DMA4_BASE; dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT; } else { pr_err("DMA init failed for unsupported omap\n"); return -ENODEV; } + omap_dma_base = ioremap(base, SZ_4K); + BUG_ON(!omap_dma_base); + if (cpu_class_is_omap2() && omap_dma_reserve_channels && (omap_dma_reserve_channels <= dma_lch_count)) dma_lch_count = omap_dma_reserve_channels; dma_chan = kzalloc(sizeof(struct omap_dma_lch) * dma_lch_count, GFP_KERNEL); - if (!dma_chan) - return -ENOMEM; + if (!dma_chan) { + r = -ENOMEM; + goto out_unmap; + } if (cpu_class_is_omap2()) { dma_linked_lch = kzalloc(sizeof(struct dma_link_info) * dma_lch_count, GFP_KERNEL); if (!dma_linked_lch) { - kfree(dma_chan); - return -ENOMEM; + r = -ENOMEM; + goto out_free; } } @@ -2454,7 +2460,7 @@ static int __init omap_init_dma(void) for (i = 0; i < ch; i++) free_irq(omap1_dma_irq[i], (void *) (i + 1)); - return r; + goto out_free; } } } @@ -2496,11 +2502,19 @@ static int __init omap_init_dma(void) "(error %d)\n", r); for (i = 0; i < dma_chan_count; i++) free_irq(omap1_dma_irq[i], (void *) (i + 1)); - return r; + goto out_free; } } return 0; + +out_free: + kfree(dma_chan); + +out_unmap: + iounmap(omap_dma_base); + + return r; } arch_initcall(omap_init_dma); |