From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755070AbbG3IOz (ORCPT ); Thu, 30 Jul 2015 04:14:55 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:47756 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754773AbbG3IOq (ORCPT ); Thu, 30 Jul 2015 04:14:46 -0400 From: Kishon Vijay Abraham I To: , , , , , CC: , , , , , , , , Subject: [PATCH 6/7] ARM: dts: dra7-evm: Fix spurious card insert/removal interrupt Date: Thu, 30 Jul 2015 13:43:39 +0530 Message-ID: <1438244020-4244-7-git-send-email-kishon@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1438244020-4244-1-git-send-email-kishon@ti.com> References: <1438244020-4244-1-git-send-email-kishon@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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