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| author |   Stephen Warren <swarren@nvidia.com> | 2012-09-28 10:15:48 -0600 |
|---|---|---|
| committer |   Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-10-01 13:29:49 +0100 |
| commit | 536a53a300d0d40152796eefb0a9e6e36ca37f7d (patch) | |
| tree | e644203945ee780d8a1a4cdc656d9b4984f5361d /drivers/spi/Makefile | |
| parent | Merge branches 'spi-drivers' and 'spi-mxs' into spi-next (diff) | |
| download | linux-dev-536a53a300d0d40152796eefb0a9e6e36ca37f7d.tar.xz linux-dev-536a53a300d0d40152796eefb0a9e6e36ca37f7d.zip | |
spi: remove completely broken Tegra driver
The current SPI driver has many issues. Examples are:
* Segfaulting on most transfers due to expecting all transfers to have
both RX and TX buffers.
* Hanging on TX transfers since the whole driver flow is driven by RX
DMA completion, but the HW is only told to enable RX for RX transfers.
* Use of clk_disable_unprepare() from atomic context.
* Once those and other minor issues are fixed, the driver still doesn't
actually work.
* The driver also implements a deprecated API to the SPI core.
For this reason, simply remove the driver completely. This has two
advantages:
1) This will remove the last use of Tegra's <mach/dma.h>, which will
allow that file to be removed, which is required for single zImage
work.
2) The downstream driver is significaly different from the current
code. I believe a patch to re-add the downstream driver (with
appropriate cleanup) will be much simpler to review if it's a new
file rather than randomly interspered with essentially unrelated
existing code.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/spi/Makefile')
| -rw-r--r-- | drivers/spi/Makefile | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 938705644bb6..22fd3a7251bc 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -59,7 +59,6 @@ obj-$(CONFIG_SPI_SH_MSIOF) += spi-sh-msiof.o obj-$(CONFIG_SPI_SH_SCI) += spi-sh-sci.o obj-$(CONFIG_SPI_SIRF) += spi-sirf.o obj-$(CONFIG_SPI_STMP3XXX) += spi-stmp.o -obj-$(CONFIG_SPI_TEGRA) += spi-tegra.o obj-$(CONFIG_SPI_TI_SSP) += spi-ti-ssp.o obj-$(CONFIG_SPI_TLE62X0) += spi-tle62x0.o obj-$(CONFIG_SPI_TOPCLIFF_PCH) += spi-topcliff-pch.o |