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dmaengine: at_hdmac: add a few const qualifiers 

This prepares of_device_id.data becoming const. Without this change
the following warning would occur:

	drivers/dma/at_hdmac.c: In function 'at_dma_get_driver_data':
	drivers/dma/at_hdmac.c:1228: warning: return discards qualifiers from pointer target type

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
This commit is contained in:
Uwe Kleine-König 2012-07-13 14:32:10 +02:00 committed by Vinod Koul
parent f8609c2b52
commit 7fd63ccdad
1 changed files with 2 additions and 2 deletions
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4
drivers/dma/at_hdmac.c
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@ -1216,7 +1216,7 @@ static const struct platform_device_id atdma_devtypes[] = {
}
};
static inline struct at_dma_platform_data * __init at_dma_get_driver_data(
static inline const struct at_dma_platform_data * __init at_dma_get_driver_data(
struct platform_device *pdev)
{
if (pdev->dev.of_node) {
@ -1254,7 +1254,7 @@ static int __init at_dma_probe(struct platform_device *pdev)
int irq;
int err;
int i;
struct at_dma_platform_data *plat_dat;
const struct at_dma_platform_data *plat_dat;
/* setup platform data for each SoC */
dma_cap_set(DMA_MEMCPY, at91sam9rl_config.cap_mask);