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authorLinus Walleij <linus.walleij@linaro.org>2011-11-29 12:52:39 +0100
committerLinus Walleij <linus.walleij@linaro.org>2012-01-03 09:10:02 +0100
commit97607d157c133ab18dfcd77fa836e37fa950a44a (patch)
treef9ac62a9534295f24ab40a2890bfd285bc157a03 /arch/arm/mach-u300
parent542e704f3ffee1dc4539c9e8191e4dc215220f5e (diff)
downloadop-kernel-dev-97607d157c133ab18dfcd77fa836e37fa950a44a.zip
op-kernel-dev-97607d157c133ab18dfcd77fa836e37fa950a44a.tar.gz
pinctrl: make a copy of pinmux map
This makes a deep copy of the pinmux function map instead of keeping the copy supplied from the platform around. This makes it possible to tag the platforms map with __initdata as is also done as part of this patch. Rationale: a certain target platform (PXA) has numerous pinmux maps, many of which will be lying around unused after boot in a multi-platform binary. Instead, deep-copy the one we're going to use and tag them all __initdata so they go away after boot. ChangeLog v1->v2: - Fixup the deep copy, missed a few items on the struct, plus mark bool member non-const since we're making runtime copies if this stuff now. ChangeLog v2->v3: - Make a shallow copy (just copy the array of map structs) as Arnd noticed, string constants never get discarded by the kernel anyway, so these pointers may be safely copied over. Reviewed-by: Arnd Bergmann <arnd.bergmann@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/mach-u300')
-rw-r--r--arch/arm/mach-u300/core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c
index ac0791e..839fa15 100644
--- a/arch/arm/mach-u300/core.c
+++ b/arch/arm/mach-u300/core.c
@@ -1605,7 +1605,7 @@ static struct platform_device pinmux_device = {
};
/* Pinmux settings */
-static struct pinmux_map u300_pinmux_map[] = {
+static struct pinmux_map __initdata u300_pinmux_map[] = {
/* anonymous maps for chip power and EMIFs */
PINMUX_MAP_PRIMARY_SYS_HOG("POWER", "power"),
PINMUX_MAP_PRIMARY_SYS_HOG("EMIF0", "emif0"),
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