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omap: Use ioremap in dma.c 

Use ioremap in dma.c

Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2009-10-19 15:25:15 -07:00
parent 1b26fe868a
commit 7e9bf8475f
1 changed files with 24 additions and 10 deletions
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34
arch/arm/plat-omap/dma.c
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@ -2347,40 +2347,46 @@ EXPORT_SYMBOL(omap_stop_lcd_dma);
static int __init omap_init_dma(void) static int __init omap_init_dma(void)
{ {
unsigned long base;
int ch, r; int ch, r;
if (cpu_class_is_omap1()) { 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; dma_lch_count = OMAP1_LOGICAL_DMA_CH_COUNT;
} else if (cpu_is_omap24xx()) { } 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; dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT;
} else if (cpu_is_omap34xx()) { } 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; dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT;
} else if (cpu_is_omap44xx()) { } 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; dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT;
} else { } else {
pr_err("DMA init failed for unsupported omap\n"); pr_err("DMA init failed for unsupported omap\n");
return -ENODEV; return -ENODEV;
} }
omap_dma_base = ioremap(base, SZ_4K);
BUG_ON(!omap_dma_base);
if (cpu_class_is_omap2() && omap_dma_reserve_channels if (cpu_class_is_omap2() && omap_dma_reserve_channels
&& (omap_dma_reserve_channels <= dma_lch_count)) && (omap_dma_reserve_channels <= dma_lch_count))
dma_lch_count = omap_dma_reserve_channels; dma_lch_count = omap_dma_reserve_channels;
dma_chan = kzalloc(sizeof(struct omap_dma_lch) * dma_lch_count, dma_chan = kzalloc(sizeof(struct omap_dma_lch) * dma_lch_count,
GFP_KERNEL); GFP_KERNEL);
if (!dma_chan) if (!dma_chan) {
return -ENOMEM; r = -ENOMEM;
goto out_unmap;
}
if (cpu_class_is_omap2()) { if (cpu_class_is_omap2()) {
dma_linked_lch = kzalloc(sizeof(struct dma_link_info) * dma_linked_lch = kzalloc(sizeof(struct dma_link_info) *
dma_lch_count, GFP_KERNEL); dma_lch_count, GFP_KERNEL);
if (!dma_linked_lch) { if (!dma_linked_lch) {
kfree(dma_chan); r = -ENOMEM;
return -ENOMEM; goto out_free;
} }
} }
@ -2454,7 +2460,7 @@ static int __init omap_init_dma(void)
for (i = 0; i < ch; i++) for (i = 0; i < ch; i++)
free_irq(omap1_dma_irq[i], free_irq(omap1_dma_irq[i],
(void *) (i + 1)); (void *) (i + 1));
return r; goto out_free;
} }
} }
} }
@ -2496,11 +2502,19 @@ static int __init omap_init_dma(void)
"(error %d)\n", r); "(error %d)\n", r);
for (i = 0; i < dma_chan_count; i++) for (i = 0; i < dma_chan_count; i++)
free_irq(omap1_dma_irq[i], (void *) (i + 1)); free_irq(omap1_dma_irq[i], (void *) (i + 1));
return r; goto out_free;
} }
} }
return 0; return 0;
out_free:
kfree(dma_chan);
out_unmap:
iounmap(omap_dma_base);
return r;
} }
arch_initcall(omap_init_dma); arch_initcall(omap_init_dma);