From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760353AbcLUWEq (ORCPT ); Wed, 21 Dec 2016 17:04:46 -0500 Received: from mail-db5eur01on0136.outbound.protection.outlook.com ([104.47.2.136]:54107 "EHLO EUR01-DB5-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756127AbcLUWEn (ORCPT ); Wed, 21 Dec 2016 17:04:43 -0500 Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=peda@axentia.se; From: Peter Rosin To: linux-kernel@vger.kernel.org Cc: Peter Rosin , Sebastian Reichel , Rob Herring , Mark Rutland , linux-pm@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH 0/2] power: supply: bq24735: poll register if no ac-detect gpio Date: Wed, 21 Dec 2016 22:29:51 +0100 Message-Id: <1482355793-16190-1-git-send-email-peda@axentia.se> X-Mailer: git-send-email 2.1.4 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [217.210.101.82] X-ClientProxiedBy: VI1PR0701CA0050.eurprd07.prod.outlook.com (10.168.131.140) To DB6PR0201MB2309.eurprd02.prod.outlook.com (10.169.222.148) X-MS-Office365-Filtering-Correlation-Id: 4dce4bba-1fc6-44e4-5fea-08d429e8891e X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:(22001);SRVR:DB6PR0201MB2309; 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My patch [1] "power: supply: bq24735-charger: allow chargers to share the ac-detect gpio" is perhaps a bit hard to digest. And while I still think some way of sharing the ac-detect gpio is worthwhile, I thought of another way to solve the problem at hand. Instead of polling a shared gpio, it's as simple as polling the chip for what it is outputting on the ACOK pin. And the code is already there! It just needs a tweak to allow this mode of operation. This appears to work just fine for me, and the difference is in the noise since my shared gpio pin happens to be on an expander on the i2c bus, so I end up with i2c traffic for each poll either way. Cheers, peda [1] https://lkml.org/lkml/2016/12/13/786 Peter Rosin (2): power: supply: bq24735: allow polling even if there is no ac-detect gpio power: supply: bq24735: bring down the noise level Documentation/devicetree/bindings/power/supply/ti,bq24735.txt | 4 ++-- drivers/power/supply/bq24735-charger.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) -- 2.1.4