This patch fixes the Qualcomm BAM dmaenging driver to work with big endian kernels.

Signed-off-by: Andy Gross andy.gross@linaro.org --- drivers/dma/qcom_bam_dma.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c index 5a250cd..37f7aec 100644 --- a/drivers/dma/qcom_bam_dma.c +++ b/drivers/dma/qcom_bam_dma.c @@ -53,9 +53,9 @@ #include "virt-dma.h"

struct bam_desc_hw { - u32 addr; /* Buffer physical address */ - u16 size; /* Buffer size in bytes */ - u16 flags; + __le32 addr; /* Buffer physical address */ + __le16 size; /* Buffer size in bytes */ + __le16 flags; };

#define DESC_FLAG_INT BIT(15) @@ -632,14 +632,15 @@ static struct dma_async_tx_descriptor *bam_prep_slave_sg(struct dma_chan *chan, unsigned int curr_offset = 0;

do { - desc->addr = sg_dma_address(sg) + curr_offset; + desc->addr = cpu_to_le32(sg_dma_address(sg) + + curr_offset);

if (remainder > BAM_MAX_DATA_SIZE) { - desc->size = BAM_MAX_DATA_SIZE; + desc->size = cpu_to_le16(BAM_MAX_DATA_SIZE); remainder -= BAM_MAX_DATA_SIZE; curr_offset += BAM_MAX_DATA_SIZE; } else { - desc->size = remainder; + desc->size = cpu_to_le16(remainder); remainder = 0; }

@@ -915,9 +916,11 @@ static void bam_start_dma(struct bam_chan *bchan)

/* set any special flags on the last descriptor */ if (async_desc->num_desc == async_desc->xfer_len) - desc[async_desc->xfer_len - 1].flags = async_desc->flags; + desc[async_desc->xfer_len - 1].flags = + cpu_to_le16(async_desc->flags); else - desc[async_desc->xfer_len - 1].flags |= DESC_FLAG_INT; + desc[async_desc->xfer_len - 1].flags |= + cpu_to_le16(DESC_FLAG_INT);

if (bchan->tail + async_desc->xfer_len > MAX_DESCRIPTORS) { u32 partial = MAX_DESCRIPTORS - bchan->tail;