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Groups > linux.kernel > #1195797
| From | Kishon Vijay Abraham I <kishon@ti.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 6/7] ARM: dts: dra7-evm: Fix spurious card insert/removal interrupt |
| Date | 2015-07-30 10:20 +0200 |
| Message-ID | <pRReh-14V-5@gated-at.bofh.it> (permalink) |
| References | <pRReh-14V-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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> --- arch/arm/boot/dts/dra7-evm.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts index 25f0a00..a6c82e5 100644 --- a/arch/arm/boot/dts/dra7-evm.dts +++ b/arch/arm/boot/dts/dra7-evm.dts @@ -358,6 +358,7 @@ regulator-name = "ldo1"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; + regulator-always-on; regulator-boot-on; }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH 6/7] ARM: dts: dra7-evm: Fix spurious card insert/removal interrupt Kishon Vijay Abraham I <kishon@ti.com> - 2015-07-30 10:20 +0200
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