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| author | Andy Gross <andy.gross@linaro.org> | 2016-02-29 17:15:19 -0600 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-03-03 21:19:01 +0530 |
| commit | 458f5884a1972f26c5260539822b0d158dd85e92 (patch) | |
| tree | 330c7dbd2658c14ba75ea427d33ee6e1b79a76bd /drivers/dma | |
| parent | 92e963f50fc74041b5e9e744c330dca48e04f08d (diff) | |
| download | linux-458f5884a1972f26c5260539822b0d158dd85e92.tar.gz linux-458f5884a1972f26c5260539822b0d158dd85e92.tar.bz2 linux-458f5884a1972f26c5260539822b0d158dd85e92.zip | |
dmaengine: qcom_bam_dma: Make driver work for BE
This patch fixes the Qualcomm BAM dmaenging driver to work with big
endian kernels.
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/qcom_bam_dma.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c index 5a250cdc8376..37f7aeca7fe1 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; |