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DMA-API: video: clcd: add dma_set_mask_and_coherent() call 

The DMA API requires drivers to call the appropriate dma_set_mask()
functions before doing any DMA mapping.  Add this required call to
the AMBA PL08x driver.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2013-06-27 10:29:32 +01:00
parent 64113016a4
commit e0a8ba2581
1 changed files with 5 additions and 0 deletions
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5
drivers/video/amba-clcd.c
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@ -10,6 +10,7 @@
*
* ARM PrimeCell PL110 Color LCD Controller
*/
#include <linux/dma-mapping.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
@ -551,6 +552,10 @@ static int clcdfb_probe(struct amba_device *dev, const struct amba_id *id)
if (!board)
return -EINVAL;
ret = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32));
if (ret)
goto out;
ret = amba_request_regions(dev, NULL);
if (ret) {
printk(KERN_ERR "CLCD: unable to reserve regs region\n");