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| author | Mans Rullgard <mans@mansr.com> | 2016-04-26 12:03:10 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2016-05-10 12:29:19 -0400 |
| commit | 50b433753df69262ed1c098328f692e882a31001 (patch) | |
| tree | 560a31574c694d1cfa747967ff12ed731a71665a /drivers/ata/Kconfig | |
| parent | 077028ecc99dc66acb3c89e33cc15c69d2edf8cb (diff) | |
| download | linux-50b433753df69262ed1c098328f692e882a31001.tar.bz2 | |
ata: sata_dwc_460ex: use "dmas" DT property to find dma channel
Currently this driver only works with a DesignWare DMA engine which it
registers manually using the second "reg" address range and interrupt
number from the DT node.
This patch makes the driver instead use the "dmas" property if present,
otherwise optionally falling back on the old way so existing device
trees can continue to work.
With this change, there is no longer any reason to depend on the 460EX
machine type so drop that from Kconfig.
Tested-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata/Kconfig')
| -rw-r--r-- | drivers/ata/Kconfig | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 0f528d332ece..fec561957e16 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -305,14 +305,21 @@ config ATA_PIIX config SATA_DWC tristate "DesignWare Cores SATA support" - depends on 460EX - select DW_DMAC_CORE help This option enables support for the on-chip SATA controller of the AppliedMicro processor 460EX. If unsure, say N. +config SATA_DWC_OLD_DMA + bool "Support old device trees" + depends on SATA_DWC + select DW_DMAC_CORE + default y if 460EX + help + This option enables support for old device trees without the + "dmas" property. + config SATA_DWC_DEBUG bool "Debugging driver version" depends on SATA_DWC |