From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 1CE71C28CC5 for ; Wed, 5 Jun 2019 13:42:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EA70B20866 for ; Wed, 5 Jun 2019 13:42:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728219AbfFENmt (ORCPT ); Wed, 5 Jun 2019 09:42:49 -0400 Received: from mga14.intel.com ([192.55.52.115]:51941 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728190AbfFENmp (ORCPT ); Wed, 5 Jun 2019 09:42:45 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Jun 2019 06:42:45 -0700 X-ExtLoop1: 1 Received: from xxx.igk.intel.com ([10.237.93.170]) by orsmga004.jf.intel.com with ESMTP; 05 Jun 2019 06:42:41 -0700 From: =?UTF-8?q?Amadeusz=20S=C5=82awi=C5=84ski?= To: alsa-devel@alsa-project.org Cc: Jaroslav Kysela , Takashi Iwai , Liam Girdwood , Mark Brown , Pierre-Louis Bossart , Jie Yang , Cezary Rojewski , linux-kernel@vger.kernel.org, =?UTF-8?q?Amadeusz=20S=C5=82awi=C5=84ski?= , Bard Liao , Oder Chiou Subject: [PATCH 10/14] SoC: rt274: Fix internal jack assignment in set_jack callback Date: Wed, 5 Jun 2019 15:45:52 +0200 Message-Id: <20190605134556.10322-11-amadeuszx.slawinski@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190605134556.10322-1-amadeuszx.slawinski@linux.intel.com> References: <20190605134556.10322-1-amadeuszx.slawinski@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When we call snd_soc_component_set_jack(component, NULL, NULL) we should set rt274->jack to passed jack, so when interrupt is triggered it calls snd_soc_jack_report(rt274->jack, ...) with proper value. This fixes problem in machine where in register, we call snd_soc_register(component, &headset, NULL), which just calls rt274_mic_detect via callback. Now when machine driver is removed "headset" will be gone, so we need to tell codec driver that it's gone with: snd_soc_register(component, NULL, NULL), but we also need to be able to handle NULL jack argument here gracefully. If we don't set it to NULL, next time the rt274_irq runs it will call snd_soc_jack_report with first argument being invalid pointer and there will be Oops. Signed-off-by: Amadeusz Sławiński --- sound/soc/codecs/rt274.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/rt274.c b/sound/soc/codecs/rt274.c index adf59039a3b6..cdd312db3e78 100644 --- a/sound/soc/codecs/rt274.c +++ b/sound/soc/codecs/rt274.c @@ -405,6 +405,8 @@ static int rt274_mic_detect(struct snd_soc_component *component, { struct rt274_priv *rt274 = snd_soc_component_get_drvdata(component); + rt274->jack = jack; + if (jack == NULL) { /* Disable jack detection */ regmap_update_bits(rt274->regmap, RT274_EAPD_GPIO_IRQ_CTRL, @@ -412,7 +414,6 @@ static int rt274_mic_detect(struct snd_soc_component *component, return 0; } - rt274->jack = jack; regmap_update_bits(rt274->regmap, RT274_EAPD_GPIO_IRQ_CTRL, RT274_IRQ_EN, RT274_IRQ_EN); -- 2.17.1