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authorAndy Gross <andy.gross@linaro.org>2016-02-29 17:15:19 -0600
committerVinod Koul <vinod.koul@intel.com>2016-03-03 21:19:01 +0530
commit458f5884a1972f26c5260539822b0d158dd85e92 (patch)
tree330c7dbd2658c14ba75ea427d33ee6e1b79a76bd /drivers/dma
parent92e963f50fc74041b5e9e744c330dca48e04f08d (diff)
downloadlinux-458f5884a1972f26c5260539822b0d158dd85e92.tar.bz2
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.c19
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;