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>
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@ -53,9 +53,9 @@
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#include "virt-dma.h"
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struct bam_desc_hw {
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u32 addr; /* Buffer physical address */
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u16 size; /* Buffer size in bytes */
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u16 flags;
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__le32 addr; /* Buffer physical address */
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__le16 size; /* Buffer size in bytes */
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__le16 flags;
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};
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#define DESC_FLAG_INT BIT(15)
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@ -632,14 +632,15 @@ static struct dma_async_tx_descriptor *bam_prep_slave_sg(struct dma_chan *chan,
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unsigned int curr_offset = 0;
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do {
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desc->addr = sg_dma_address(sg) + curr_offset;
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desc->addr = cpu_to_le32(sg_dma_address(sg) +
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curr_offset);
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if (remainder > BAM_MAX_DATA_SIZE) {
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desc->size = BAM_MAX_DATA_SIZE;
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desc->size = cpu_to_le16(BAM_MAX_DATA_SIZE);
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remainder -= BAM_MAX_DATA_SIZE;
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curr_offset += BAM_MAX_DATA_SIZE;
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} else {
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desc->size = remainder;
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desc->size = cpu_to_le16(remainder);
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remainder = 0;
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}
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@ -915,9 +916,11 @@ static void bam_start_dma(struct bam_chan *bchan)
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/* set any special flags on the last descriptor */
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if (async_desc->num_desc == async_desc->xfer_len)
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desc[async_desc->xfer_len - 1].flags = async_desc->flags;
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desc[async_desc->xfer_len - 1].flags =
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cpu_to_le16(async_desc->flags);
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else
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desc[async_desc->xfer_len - 1].flags |= DESC_FLAG_INT;
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desc[async_desc->xfer_len - 1].flags |=
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cpu_to_le16(DESC_FLAG_INT);
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if (bchan->tail + async_desc->xfer_len > MAX_DESCRIPTORS) {
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u32 partial = MAX_DESCRIPTORS - bchan->tail;
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