From patchwork Thu Dec 10 21:25:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 11966585 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=-17.0 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 87CF4C2BB48 for ; Thu, 10 Dec 2020 21:28:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 454C523F34 for ; Thu, 10 Dec 2020 21:28:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404919AbgLJV2H (ORCPT ); Thu, 10 Dec 2020 16:28:07 -0500 Received: from mail.kernel.org ([198.145.29.99]:38460 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404944AbgLJV1l (ORCPT ); Thu, 10 Dec 2020 16:27:41 -0500 From: Krzysztof Kozlowski Authentication-Results: mail.kernel.org; dkim=permerror (bad message/signature format) To: Chanwoo Choi , Krzysztof Kozlowski , Bartlomiej Zolnierkiewicz , Michael Turquette , Stephen Boyd , Rob Herring , Lee Jones , Sebastian Reichel , Liam Girdwood , Mark Brown , Andy Gross , Bjorn Andersson , Alessandro Zummo , Alexandre Belloni , linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-rtc@vger.kernel.org Cc: Iskren Chernev , Matheus Castello , Sebastian Krzyszkowiak , Angus Ainslie , Hans de Goede Subject: [RFC 18/18] power: supply: max17040: Do not enforce (incorrect) interrupt trigger type Date: Thu, 10 Dec 2020 22:25:34 +0100 Message-Id: <20201210212534.216197-18-krzk@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201210212534.216197-1-krzk@kernel.org> References: <20201210212534.216197-1-krzk@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Interrupt line can be configured on different hardware in different way, even inverted. Therefore driver should not enforce specific trigger type - edge falling - but instead rely on Devicetree to configure it. The Maxim 14577/77836 datasheets describe the interrupt line as active low with a requirement of acknowledge from the CPU therefore the edge falling is not correct. Signed-off-by: Krzysztof Kozlowski Acked-by: Iskren Chernev --- This patch should wait till DTS changes are merged, as it relies on proper Devicetree. --- .../devicetree/bindings/power/supply/max17040_battery.txt | 2 +- drivers/power/supply/max17040_battery.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/power/supply/max17040_battery.txt b/Documentation/devicetree/bindings/power/supply/max17040_battery.txt index c802f664b508..194eb9fe574d 100644 --- a/Documentation/devicetree/bindings/power/supply/max17040_battery.txt +++ b/Documentation/devicetree/bindings/power/supply/max17040_battery.txt @@ -39,7 +39,7 @@ Example: reg = <0x36>; maxim,alert-low-soc-level = <10>; interrupt-parent = <&gpio7>; - interrupts = <2 IRQ_TYPE_EDGE_FALLING>; + interrupts = <2 IRQ_TYPE_LEVEL_LOW>; wakeup-source; }; diff --git a/drivers/power/supply/max17040_battery.c b/drivers/power/supply/max17040_battery.c index d956c67d5155..f737de0470de 100644 --- a/drivers/power/supply/max17040_battery.c +++ b/drivers/power/supply/max17040_battery.c @@ -367,7 +367,7 @@ static int max17040_enable_alert_irq(struct max17040_chip *chip) flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; ret = devm_request_threaded_irq(&client->dev, client->irq, NULL, - max17040_thread_handler, flags, + max17040_thread_handler, IRQF_ONESHOT, chip->battery->desc->name, chip); return ret;