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-rw-r--r--drivers/dma/dw/platform.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c
index 234abbd6359a..63465fd0e286 100644
--- a/drivers/dma/dw/platform.c
+++ b/drivers/dma/dw/platform.c
@@ -173,7 +173,6 @@ static int dw_probe(struct platform_device *pdev)
struct dw_dma_chip *chip;
struct device *dev = &pdev->dev;
struct resource *mem;
- const struct dw_dma_platform_data *pdata;
int err;
match = device_get_match_data(dev);
@@ -201,13 +200,14 @@ static int dw_probe(struct platform_device *pdev)
if (err)
return err;
- pdata = dev_get_platdata(dev);
- if (!pdata)
- pdata = dw_dma_parse_dt(pdev);
+ if (!data->pdata)
+ data->pdata = dev_get_platdata(dev);
+ if (!data->pdata)
+ data->pdata = dw_dma_parse_dt(pdev);
chip->dev = dev;
chip->id = pdev->id;
- chip->pdata = pdata;
+ chip->pdata = data->pdata;
data->chip = chip;
@@ -298,6 +298,12 @@ static const struct acpi_device_id dw_dma_acpi_id_table[] = {
{ "INTL9C60", (kernel_ulong_t)&dw_dma_chip_pdata },
{ "80862286", (kernel_ulong_t)&dw_dma_chip_pdata },
{ "808622C0", (kernel_ulong_t)&dw_dma_chip_pdata },
+
+ /* Elkhart Lake iDMA 32-bit (PSE DMA) */
+ { "80864BB4", (kernel_ulong_t)&idma32_chip_pdata },
+ { "80864BB5", (kernel_ulong_t)&idma32_chip_pdata },
+ { "80864BB6", (kernel_ulong_t)&idma32_chip_pdata },
+
{ }
};
MODULE_DEVICE_TABLE(acpi, dw_dma_acpi_id_table);