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dmaengine: dw: platform: Enable iDMA 32-bit on Intel Elkhart Lake
Intel® PSE (Programmable Services Engine) provides few DMA controllers to the host on Intel Elkhart Lake. Enable them in the ACPI glue driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20190820131546.75744-6-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
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1 changed files with 11 additions and 5 deletions
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@ -173,7 +173,6 @@ static int dw_probe(struct platform_device *pdev)
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struct dw_dma_chip *chip;
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struct device *dev = &pdev->dev;
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struct resource *mem;
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const struct dw_dma_platform_data *pdata;
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int err;
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match = device_get_match_data(dev);
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@ -201,13 +200,14 @@ static int dw_probe(struct platform_device *pdev)
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if (err)
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return err;
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pdata = dev_get_platdata(dev);
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if (!pdata)
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pdata = dw_dma_parse_dt(pdev);
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if (!data->pdata)
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data->pdata = dev_get_platdata(dev);
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if (!data->pdata)
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data->pdata = dw_dma_parse_dt(pdev);
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chip->dev = dev;
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chip->id = pdev->id;
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chip->pdata = pdata;
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chip->pdata = data->pdata;
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data->chip = chip;
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@ -298,6 +298,12 @@ static const struct acpi_device_id dw_dma_acpi_id_table[] = {
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{ "INTL9C60", (kernel_ulong_t)&dw_dma_chip_pdata },
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{ "80862286", (kernel_ulong_t)&dw_dma_chip_pdata },
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{ "808622C0", (kernel_ulong_t)&dw_dma_chip_pdata },
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/* Elkhart Lake iDMA 32-bit (PSE DMA) */
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{ "80864BB4", (kernel_ulong_t)&idma32_chip_pdata },
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{ "80864BB5", (kernel_ulong_t)&idma32_chip_pdata },
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{ "80864BB6", (kernel_ulong_t)&idma32_chip_pdata },
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{ }
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};
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MODULE_DEVICE_TABLE(acpi, dw_dma_acpi_id_table);
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