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authorKishon Vijay Abraham I <kishon@ti.com>2015-07-30 08:13:40 (GMT)
committerTony Lindgren <tony@atomide.com>2015-08-05 10:53:19 (GMT)
commitd62ce9ffd8211a423c462811ef083d2493a44321 (patch)
tree1cd4b5ea37364b02b455412db8e300ec2ba6e128 /arch/arm/boot/dts/dra72-evm.dts
parent9f04ceebe21a8cc8930adbea0fcc538a46e7289a (diff)
downloadlinux-d62ce9ffd8211a423c462811ef083d2493a44321.tar.xz
ARM: dts: dra72-evm: Fix spurious card insert/removal interrupt
ldo1_reg in addition to being connected to the io lines is also connected to the card detect line. On card removal, omap_hsmmc driver does a regulator_disable causing card detect line to be pulled down. This raises a card insertion interrupt and once the MMC core detects there is no card inserted, it does a regulator disable which again raises a card insertion interrupt. This happens in a loop causing infinite MMC interrupts. Fix it by making ldo1_reg as always_on. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/dra72-evm.dts')
-rw-r--r--arch/arm/boot/dts/dra72-evm.dts1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index 43ee6ac..c11ccb1 100644
--- a/arch/arm/boot/dts/dra72-evm.dts
+++ b/arch/arm/boot/dts/dra72-evm.dts
@@ -295,6 +295,7 @@
regulator-name = "ldo1";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
+ regulator-always-on;
regulator-boot-on;
};