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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>
steinar/wifi_calib_4_9_kernel
Kishon Vijay Abraham I 2015-07-30 13:43:40 +05:30 committed by Tony Lindgren
parent 9f04ceebe2
commit d62ce9ffd8
1 changed files with 1 additions and 0 deletions
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arch/arm/boot/dts/dra72-evm.dts
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@ -295,6 +295,7 @@
regulator-name = "ldo1";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-boot-on;
};