@@ -142,6 +142,7 @@ static int sst_acpi_probe(struct platform_device *pdev)
sst_acpi->desc = desc;
sst_acpi->mach = mach;
+ sst_pdata->resindex_dma_base = desc->resindex_dma_base;
if (desc->resindex_dma_base >= 0) {
sst_pdata->dma_engine = desc->dma_engine;
sst_pdata->dma_base = desc->resindex_dma_base;
@@ -206,6 +206,7 @@ struct sst_pdata {
const struct firmware *fw;
/* DMA */
+ int resindex_dma_base; /* other fields invalid if equals to -1 */
u32 dma_base;
u32 dma_size;
int dma_engine;
@@ -271,6 +271,10 @@ int sst_dma_new(struct sst_dsp *sst)
const char *dma_dev_name;
int ret = 0;
+ if (sst->pdata->resindex_dma_base == -1)
+ /* DMA is not used, return and squelsh error messages */
+ return 0;
+
/* configure the correct platform data for whatever DMA engine
* is attached to the ADSP IP. */
switch (sst->pdata->dma_engine) {