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@xxxxxxxxxxxxxxxx>
---
drivers/video/amba-clcd.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index 0a2cce7..afe4702 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -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");
--
1.7.4.4
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