diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/dma/dw/platform.c | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/dma/dw/platform.c')
| -rw-r--r-- | kernel/drivers/dma/dw/platform.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/kernel/drivers/dma/dw/platform.c b/kernel/drivers/dma/dw/platform.c index b2c3ae071..68a481575 100644 --- a/kernel/drivers/dma/dw/platform.c +++ b/kernel/drivers/dma/dw/platform.c @@ -155,6 +155,7 @@ static int dw_probe(struct platform_device *pdev) struct dw_dma_chip *chip; struct device *dev = &pdev->dev; struct resource *mem; + const struct acpi_device_id *id; struct dw_dma_platform_data *pdata; int err; @@ -178,6 +179,11 @@ static int dw_probe(struct platform_device *pdev) pdata = dev_get_platdata(dev); if (!pdata) pdata = dw_dma_parse_dt(pdev); + if (!pdata && has_acpi_companion(dev)) { + id = acpi_match_device(dev->driver->acpi_match_table, dev); + if (id) + pdata = (struct dw_dma_platform_data *)id->driver_data; + } chip->dev = dev; @@ -246,8 +252,17 @@ MODULE_DEVICE_TABLE(of, dw_dma_of_id_table); #endif #ifdef CONFIG_ACPI +static struct dw_dma_platform_data dw_dma_acpi_pdata = { + .nr_channels = 8, + .is_private = true, + .chan_allocation_order = CHAN_ALLOCATION_ASCENDING, + .chan_priority = CHAN_PRIORITY_ASCENDING, + .block_size = 4095, + .nr_masters = 2, +}; + static const struct acpi_device_id dw_dma_acpi_id_table[] = { - { "INTL9C60", 0 }, + { "INTL9C60", (kernel_ulong_t)&dw_dma_acpi_pdata }, { } }; MODULE_DEVICE_TABLE(acpi, dw_dma_acpi_id_table); |