From patchwork Wed May 12 14:46:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 437948 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 539A0C43470 for ; Wed, 12 May 2021 16:46:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1E96661177 for ; Wed, 12 May 2021 16:46:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235322AbhELQrP (ORCPT ); Wed, 12 May 2021 12:47:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:60668 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243531AbhELQl3 (ORCPT ); Wed, 12 May 2021 12:41:29 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5DEC061CDB; Wed, 12 May 2021 16:04:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620835472; bh=+fdpF4ceR9o7Lg5jDJOEU23yKQ0PnMiZJJ1nz2EbVf4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FnpwyzxEz5pxl7KlY1Glv1DzeLOmwaMZaJ+KoUDl0mndWUDubfrD/tS7vQJD4eSZB bZBVQkFjbTfS0Abvj8ujbiEg5eEd4fOeZ9sN5WtSp0XdKQfqUJ+oBAHT2M32uaER9s 5b4LxEUTg6dacPUZqCbSNxPt0AoevDAJ4Xo+EOok= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Matthias Schiffer , Sebastian Reichel , Sasha Levin Subject: [PATCH 5.12 358/677] power: supply: bq27xxx: fix sign of current_now for newer ICs Date: Wed, 12 May 2021 16:46:44 +0200 Message-Id: <20210512144849.219586070@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144837.204217980@linuxfoundation.org> References: <20210512144837.204217980@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Matthias Schiffer [ Upstream commit b67fdcb7099e9c640bad625c4dd6399debb3376a ] Commit cd060b4d0868 ("power: supply: bq27xxx: fix polarity of current_now") changed the sign of current_now for all bq27xxx variants, but on BQ28Z610 I'm now seeing negated values *with* that patch. The GTA04/Openmoko device that was used for testing uses a BQ27000 or BQ27010 IC, so I assume only the BQ27XXX_O_ZERO code path was incorrect. Revert the behaviour for newer ICs. Fixes: cd060b4d0868 "power: supply: bq27xxx: fix polarity of current_now" Signed-off-by: Matthias Schiffer Signed-off-by: Sebastian Reichel Signed-off-by: Sasha Levin --- drivers/power/supply/bq27xxx_battery.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c index 0262109ac285..20e1dc8a87cf 100644 --- a/drivers/power/supply/bq27xxx_battery.c +++ b/drivers/power/supply/bq27xxx_battery.c @@ -1804,7 +1804,7 @@ static int bq27xxx_battery_current(struct bq27xxx_device_info *di, val->intval = curr * BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS; } else { /* Other gauges return signed value */ - val->intval = -(int)((s16)curr) * 1000; + val->intval = (int)((s16)curr) * 1000; } return 0;