diff options
| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-08-20 16:15:41 +0300 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2019-08-21 09:41:27 +0530 |
| commit | f8d9ddbc28518a0f7d39d2ce51f778759b49f73e (patch) | |
| tree | 60715917256e2c4ecc68aa407b67def7cafc4590 /drivers/dma | |
| parent | dmaengine: dw: platform: Use struct dw_dma_chip_pdata (diff) | |
| download | linux-dev-f8d9ddbc28518a0f7d39d2ce51f778759b49f73e.tar.xz linux-dev-f8d9ddbc28518a0f7d39d2ce51f778759b49f73e.zip | |
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>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/dw/platform.c | 16 |
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); |