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authorJohan Hovold <jhovold@gmail.com>2013-03-12 23:21:34 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-13 03:20:45 +0400
commit2d798a3f20ae992b0b69a2b68c04ada397c32ed4 (patch)
treea8eb78bbbcbf2f2ff7cb1b4f1d07979ad2aaee56 /arch/arm/mach-ixp4xx
parentf6161aa153581da4a3867a2d1a7caf4be19b6ec9 (diff)
downloadlinux-2d798a3f20ae992b0b69a2b68c04ada397c32ed4.tar.xz
ARM: w1-gpio: fix erroneous gpio requests
Fix regression introduced by commit d2323cf773 ("onewire: w1-gpio: add ext_pullup_enable pin in platform data") which added a gpio entry to the platform data, but did not add the required initialisers to the board files using it. Consequently, the driver would request gpio 0 at probe, which could break other uses of the corresponding pin. On AT91 requesting gpio 0 changes the pin muxing for PIOA0, which, for instance, breaks SPI0 on at91sam9g20. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm/mach-ixp4xx')
-rw-r--r--arch/arm/mach-ixp4xx/vulcan-setup.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp4xx/vulcan-setup.c b/arch/arm/mach-ixp4xx/vulcan-setup.c
index d42730a1d4ab..d599e354ca57 100644
--- a/arch/arm/mach-ixp4xx/vulcan-setup.c
+++ b/arch/arm/mach-ixp4xx/vulcan-setup.c
@@ -163,6 +163,7 @@ static struct platform_device vulcan_max6369 = {
static struct w1_gpio_platform_data vulcan_w1_gpio_pdata = {
.pin = 14,
+ .ext_pullup_enable_pin = -EINVAL,
};
static struct platform_device vulcan_w1_gpio = {