sst_memcpy32() only copied bytes/4 32bits, which means it dropped
the remaining bytes%4 bytes wrongly.
Here add copying those missing bytes, first to a 32bits tmp, and
then write the tmp to 32bits iomem.
Signed-off-by: Jie Yang <yang.jie@xxxxxxxxx>
---
sound/soc/intel/common/sst-firmware.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/sound/soc/intel/common/sst-firmware.c b/sound/soc/intel/common/sst-firmware.c
index 60652cb..d745a78 100644
--- a/sound/soc/intel/common/sst-firmware.c
+++ b/sound/soc/intel/common/sst-firmware.c
@@ -51,8 +51,22 @@ struct sst_dma {
static inline void sst_memcpy32(volatile void __iomem *dest, void *src, u32 bytes)
{
+ u32 tmp = 0;
+ int i, m, n;
+ const u8 *src_byte = src;
+
+ m = bytes / 4;
+ n = bytes % 4;
+
/* __iowrite32_copy use 32bit size values so divide by 4 */
- __iowrite32_copy((void *)dest, src, bytes/4);
+ __iowrite32_copy((void *)dest, src, m);
+
+ if (n) {
+ for (i = 0; i < n; i++)
+ tmp |= (u32)*(src_byte + m * 4 + i) << (i * 8);
+ __iowrite32_copy((void *)(dest + m * 4), &tmp, 1);
+ }
+
}
static void sst_dma_transfer_complete(void *arg)
--
2.5.0
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