[ARM] Remove definition of MAX_DMA_CHANNELS to zero
Since we now only build arch/arm/kernel/dma.c on machine types which set ISA_DMA_API, we don't need to define MAX_DMA_CHANNELS to 0 to indicate this - this definition becomes superfluous. Remove it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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committed by
Russell King
parent
065909b915
commit
95ba9fb06b
@@ -22,8 +22,6 @@
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DEFINE_SPINLOCK(dma_spin_lock);
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#if MAX_DMA_CHANNELS > 0
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static dma_t dma_chan[MAX_DMA_CHANNELS];
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/*
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@@ -256,32 +254,6 @@ static int __init init_dma(void)
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core_initcall(init_dma);
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#else
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int request_dma(dmach_t channel, const char *device_id)
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{
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return -EINVAL;
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}
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int get_dma_residue(dmach_t channel)
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{
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return 0;
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}
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#define GLOBAL_ALIAS(_a,_b) asm (".set " #_a "," #_b "; .globl " #_a)
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GLOBAL_ALIAS(disable_dma, get_dma_residue);
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GLOBAL_ALIAS(enable_dma, get_dma_residue);
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GLOBAL_ALIAS(free_dma, get_dma_residue);
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GLOBAL_ALIAS(get_dma_list, get_dma_residue);
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GLOBAL_ALIAS(set_dma_mode, get_dma_residue);
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GLOBAL_ALIAS(set_dma_page, get_dma_residue);
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GLOBAL_ALIAS(set_dma_count, get_dma_residue);
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GLOBAL_ALIAS(__set_dma_addr, get_dma_residue);
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GLOBAL_ALIAS(set_dma_sg, get_dma_residue);
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GLOBAL_ALIAS(set_dma_speed, get_dma_residue);
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#endif
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EXPORT_SYMBOL(request_dma);
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EXPORT_SYMBOL(free_dma);
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EXPORT_SYMBOL(enable_dma);
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