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authorMark Brown <broonie@opensource.wolfsonmicro.com>2013-01-07 19:03:17 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-01-07 19:13:35 +0000
commita76fefab5c82d0f51c1330e275476b2066fe7d73 (patch)
tree80ba425b3aab5643bf635d80c006da976e7ed4d5 /sound/soc/codecs/wm_adsp.c
parentd1c3ed669a2d452cacfb48c2d171a1f364dae2ed (diff)
downloadvexpress-lsk-a76fefab5c82d0f51c1330e275476b2066fe7d73.tar.gz
ASoC: wm_adsp: Ensure that block writes are from DMA aligned addresses
Otherwise we won't run correctly on systems that require this for larger data transfers. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/wm_adsp.c')
-rw-r--r--sound/soc/codecs/wm_adsp.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index ffc89fab96f..7b198c38f3e 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -169,6 +169,7 @@ static int wm_adsp_load(struct wm_adsp *dsp)
const struct wm_adsp_region *mem;
const char *region_name;
char *file, *text;
+ void *buf;
unsigned int reg;
int regions = 0;
int ret, offset, type, sizes;
@@ -322,8 +323,18 @@ static int wm_adsp_load(struct wm_adsp *dsp)
}
if (reg) {
- ret = regmap_raw_write(regmap, reg, region->data,
+ buf = kmemdup(region->data, le32_to_cpu(region->len),
+ GFP_KERNEL);
+ if (!buf) {
+ adsp_err(dsp, "Out of memory\n");
+ return -ENOMEM;
+ }
+
+ ret = regmap_raw_write(regmap, reg, buf,
le32_to_cpu(region->len));
+
+ kfree(buf);
+
if (ret != 0) {
adsp_err(dsp,
"%s.%d: Failed to write %d bytes at %d in %s: %d\n",
@@ -359,6 +370,7 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp)
const char *region_name;
int ret, pos, blocks, type, offset, reg;
char *file;
+ void *buf;
file = kzalloc(PAGE_SIZE, GFP_KERNEL);
if (file == NULL)
@@ -426,6 +438,13 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp)
}
if (reg) {
+ buf = kmemdup(blk->data, le32_to_cpu(blk->len),
+ GFP_KERNEL);
+ if (!buf) {
+ adsp_err(dsp, "Out of memory\n");
+ return -ENOMEM;
+ }
+
ret = regmap_raw_write(regmap, reg, blk->data,
le32_to_cpu(blk->len));
if (ret != 0) {
@@ -433,6 +452,8 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp)
"%s.%d: Failed to write to %x in %s\n",
file, blocks, reg, region_name);
}
+
+ kfree(buf);
}
pos += le32_to_cpu(blk->len) + sizeof(*blk);