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| author | Shiraz Hashim <shiraz.hashim@st.com> | 2012-11-16 10:45:25 +0530 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2012-11-18 00:01:27 +0100 |
| commit | b53bc2819a71099ecfc3d61ba0796b3dcc6be321 (patch) | |
| tree | a8d5efe5711a737a2bda7faa00371eebef848905 /arch/arm/plat-spear | |
| parent | 8754fccbae661a0020923cffd63e21de36d51e2e (diff) | |
| download | linux-3.10-b53bc2819a71099ecfc3d61ba0796b3dcc6be321.tar.gz linux-3.10-b53bc2819a71099ecfc3d61ba0796b3dcc6be321.tar.bz2 linux-3.10-b53bc2819a71099ecfc3d61ba0796b3dcc6be321.zip | |
gpio: SPEAr: add spi chipselect control driver
SPEAr platform provides a provision to control chipselects of ARM PL022
Prime Cell spi controller through its system registers, which otherwise
remains under PL022 control which some protocols do not want.
This commit intends to provide the spi chipselect control in software over
gpiolib interface. spi chip drivers can use the exported gpiolib interface to
define their chipselect through DT or platform data.
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Reviewed-by: Vipin Kumar <vipin.kumar@st.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/plat-spear')
| -rw-r--r-- | arch/arm/plat-spear/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/plat-spear/Kconfig b/arch/arm/plat-spear/Kconfig index f8db7b2deb3..87dbd81bdf5 100644 --- a/arch/arm/plat-spear/Kconfig +++ b/arch/arm/plat-spear/Kconfig @@ -12,6 +12,7 @@ config ARCH_SPEAR13XX bool "ST SPEAr13xx with Device Tree" select ARM_GIC select CPU_V7 + select GPIO_SPEAR_SPICS select HAVE_SMP select MIGHT_HAVE_CACHE_L2X0 select PINCTRL |