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Blackfin arch: drop irq_callback from struct dma_channel

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the irq member already serves the same purpose

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Mike Frysinger 2009-01-07 23:14:38 +08:00 committed by Bryan Wu
parent 68532bdac3
commit 9b011407d6
2 changed files with 2 additions and 4 deletions
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1
arch/blackfin/include/asm/dma.h
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@ -118,7 +118,6 @@ struct dma_channel {
struct dmasg *sg; /* large mode descriptor */
unsigned int ctrl_num; /* controller number */
unsigned int irq;
irq_handler_t irq_callback;
void *data;
unsigned int dma_enable_flag;
unsigned int loopback_flag;

5
arch/blackfin/kernel/bfin_dma_5xx.c
View File

@ -140,7 +140,7 @@ int request_dma(unsigned int channel, const char *device_id)
#endif
dma_ch[channel].device_id = device_id;
dma_ch[channel].irq_callback = NULL;
dma_ch[channel].irq = 0;
/* This is to be enabled by putting a restriction -
* you have to request DMA, before doing any operations on
@ -169,7 +169,6 @@ int set_dma_callback(unsigned int channel, irq_handler_t callback, void *data)
"Request irq in DMA engine failed.\n");
return -EPERM;
}
dma_ch[channel].irq_callback = callback;
}
return 0;
}
@ -185,7 +184,7 @@ void free_dma(unsigned int channel)
disable_dma(channel);
clear_dma_buffer(channel);
if (dma_ch[channel].irq_callback != NULL)
if (dma_ch[channel].irq)
free_irq(dma_ch[channel].irq, dma_ch[channel].data);
/* Clear the DMA Variable in the Channel */