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mtd: nand: pxa3xx: Move DMA I/O enabling 

Instead of setting info->dma each time a command is prepared,
we can move it after the DMA buffers are allocated.

This is more clear and it's the proper place to enable this, given
DMA cannot be turned on and off during runtime.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Ezequiel Garcia 2013-10-04 15:30:37 -03:00 committed by Brian Norris
parent 867f770de8
commit 95b26563c7
1 changed files with 5 additions and 1 deletions
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6
drivers/mtd/nand/pxa3xx_nand.c
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@ -540,7 +540,6 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
info->oob_size = 0;
info->use_ecc = 0;
info->use_spare = 1;
info->use_dma = (use_dma) ? 1 : 0;
info->is_ready = 0;
info->retcode = ERR_NONE;
if (info->cs != 0)
@ -950,6 +949,11 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
return info->data_dma_ch;
}
/*
* Now that DMA buffers are allocated we turn on
* DMA proper for I/O operations.
*/
info->use_dma = 1;
return 0;
}