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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-07-12 13:39:40 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-07-14 06:46:30 +0200 |
| commit | fe364a7d95c24e07e9b3f2ab917f01d6d8330bba (patch) | |
| tree | 6a61242a541989d8c3cd78ef156cf6010610b632 /drivers/dma/dw/platform.c | |
| parent | Linux 5.14-rc1 (diff) | |
| download | linux-fe364a7d95c24e07e9b3f2ab917f01d6d8330bba.tar.xz linux-fe364a7d95c24e07e9b3f2ab917f01d6d8330bba.zip | |
dmaengine: dw: Program xBAR hardware for Elkhart Lake
Intel Elkhart Lake PSE DMA implementation is integrated with crossbar IP
in order to serve more hardware than there are DMA request lines available.
Due to this, program xBAR hardware to make flexible support of PSE peripheral.
The Device-to-Device has not been tested and it's not supported by DMA Engine,
but it's left in the code for the sake of documenting hardware features.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210712113940.42753-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/dw/platform.c')
| -rw-r--r-- | drivers/dma/dw/platform.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c index 0585d749d935..246118955877 100644 --- a/drivers/dma/dw/platform.c +++ b/drivers/dma/dw/platform.c @@ -149,9 +149,9 @@ static const struct acpi_device_id dw_dma_acpi_id_table[] = { { "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 }, + { "80864BB4", (kernel_ulong_t)&xbar_chip_pdata }, + { "80864BB5", (kernel_ulong_t)&xbar_chip_pdata }, + { "80864BB6", (kernel_ulong_t)&xbar_chip_pdata }, { } }; |