diff options
Diffstat (limited to 'arch/arm/common')
| -rw-r--r-- | arch/arm/common/dmabounce.c | 12 | ||||
| -rw-r--r-- | arch/arm/common/scoop.c | 2 |
2 files changed, 5 insertions, 9 deletions
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index 5a375e5fef2..cc32c1e54a5 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c @@ -308,15 +308,11 @@ static inline void unmap_single(struct device *dev, dma_addr_t dma_addr, memcpy(ptr, buf->safe, size); /* - * DMA buffers must have the same cache properties - * as if they were really used for DMA - which means - * data must be written back to RAM. Note that - * we don't use dmac_flush_range() here for the - * bidirectional case because we know the cache - * lines will be coherent with the data written. + * Since we may have written to a page cache page, + * we need to ensure that the data will be coherent + * with user mappings. */ - dmac_clean_range(ptr, ptr + size); - outer_clean_range(__pa(ptr), __pa(ptr) + size); + __cpuc_flush_dcache_area(ptr, size); } free_safe_buffer(dev->archdata.dmabounce, buf); } diff --git a/arch/arm/common/scoop.c b/arch/arm/common/scoop.c index 7713a08bb10..37bda5f3dde 100644 --- a/arch/arm/common/scoop.c +++ b/arch/arm/common/scoop.c @@ -82,7 +82,7 @@ static int scoop_gpio_get(struct gpio_chip *chip, unsigned offset) { struct scoop_dev *sdev = container_of(chip, struct scoop_dev, gpio); - /* XXX: I'm usure, but it seems so */ + /* XXX: I'm unsure, but it seems so */ return ioread16(sdev->base + SCOOP_GPRR) & (1 << (offset + 1)); } |