On Mon, 2010-08-02 at 12:44 -0500, Timur Tabi wrote:
Update the DMA driver used by the Freescale MPC8610 HPCD audio driver to support 36-bit physical addresses, for both DMA buffers and the SSI registers.
The DMA driver calls snd_dma_alloc_pages() to allocate the DMA buffers for playback and capture. This function is just a front-end for dma_alloc_coherent(). Currently, dma_alloc_coherent() only allocates buffers in low memory (it ignores GFP_HIGHMEM), so we never actually get a DMA buffer with a real 36-bit physical address.
Signed-off-by: Timur Tabi timur@freescale.com
Liam, this patch should *not* be squashed into the rest of the changes for multi-component.
sound/soc/fsl/fsl_dma.c | 77 +++++++++++++++++++++++++++++++---------------- 1 files changed, 51 insertions(+), 26 deletions(-)
Applied.
Thanks
Liam