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authorFeng Tang <feng.tang@intel.com>2010-12-24 13:59:11 +0800
committerGrant Likely <grant.likely@secretlab.ca>2010-12-24 01:23:25 -0700
commit7063c0d942a1af2993531fbe52b4c74c1db818c4 (patch)
treefe91b01bd61449849736c47e0a05840fc47a5eb3 /drivers/spi/Kconfig
parent79290a2aa2fd1c179a285218472092475630dc0e (diff)
downloadop-kernel-dev-7063c0d942a1af2993531fbe52b4c74c1db818c4.zip
op-kernel-dev-7063c0d942a1af2993531fbe52b4c74c1db818c4.tar.gz
spi/dw_spi: add DMA support
dw_spi driver in upstream only supports PIO mode, and this patch will support it to cowork with the Designware dma controller used on Intel Moorestown platform, at the same time it provides a general framework to support dw_spi core to cowork with dma controllers on other platforms It has been tested with a Option GTM501L 3G modem and Infenion 60x60 modem. To use DMA mode, DMA controller 2 of Moorestown has to be enabled Also change the dma interface suggested by Linus Walleij. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Feng Tang <feng.tang@intel.com> [Typo fix and renames to match intel_mid_dma renaming] Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/spi/Kconfig')
-rw-r--r--drivers/spi/Kconfig4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 665d03d..caa2e84 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -382,6 +382,10 @@ config SPI_DW_PCI
tristate "PCI interface driver for DW SPI core"
depends on SPI_DESIGNWARE && PCI
+config SPI_DW_MID_DMA
+ bool "DMA support for DW SPI controller on Intel Moorestown platform"
+ depends on SPI_DW_PCI && INTEL_MID_DMAC
+
config SPI_DW_MMIO
tristate "Memory-mapped io interface driver for DW SPI core"
depends on SPI_DESIGNWARE && HAVE_CLK
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