From patchwork Fri May 12 12:28:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Charles Keepax X-Patchwork-Id: 681445 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4AE42C7EE45 for ; Fri, 12 May 2023 12:30:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240889AbjELMaF (ORCPT ); Fri, 12 May 2023 08:30:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240482AbjELM36 (ORCPT ); Fri, 12 May 2023 08:29:58 -0400 Received: from mx0b-001ae601.pphosted.com (mx0b-001ae601.pphosted.com [67.231.152.168]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 160DC1156E; Fri, 12 May 2023 05:29:23 -0700 (PDT) Received: from pps.filterd (m0077474.ppops.net [127.0.0.1]) by mx0b-001ae601.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34C5eUj7031128; Fri, 12 May 2023 07:28:40 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=PODMain02222019; bh=xB39y6+mJBGWtyhx0qcL2eY8lyrChM7wcWHN+iiEcB4=; b=V8BCuMXJ5RwFoMUZRqCT3DxC+nM5xnkqeVkwEifNqk0EtjlPkiPXyFT/b4+S17sXc9hi ZBF8aP9ZmNv0schiX4lKkCSVYRDNO94Gn7k8J+YdVCx48vVQ6Zq9CnjXz9tTOiBEiTnB UGrsBUPHEhJQ76LeEn/fuQmUxoOFHIrvLE/c2b9gH/63Hw73wN7WWMaIjTFgtAmq2rFs hRT1ipWoIl/YhgfX9yOKqZD11nMhDxTAgTCUqYlmofziQyRMV5T/vU3gZY3bjF5/la8g 08Ul09BJEVizlGJXjIGaCoJwWEP7ls2gGU8TmnrrlAW3FRLC2PcghHDT6InueZth/SGa Hg== Received: from ediex01.ad.cirrus.com ([84.19.233.68]) by mx0b-001ae601.pphosted.com (PPS) with ESMTPS id 3qf7s46b2x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 12 May 2023 07:28:39 -0500 Received: from ediex01.ad.cirrus.com (198.61.84.80) by ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 12 May 2023 07:28:38 -0500 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Fri, 12 May 2023 07:28:38 -0500 Received: from algalon.ad.cirrus.com (algalon.ad.cirrus.com [198.90.251.122]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 44D1915B4; Fri, 12 May 2023 12:28:38 +0000 (UTC) From: Charles Keepax To: , , , , , , , , CC: , , , , , , , , , Subject: [PATCH 02/10] ASoC: soc-component: Add notify control helper function Date: Fri, 12 May 2023 13:28:30 +0100 Message-ID: <20230512122838.243002-3-ckeepax@opensource.cirrus.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230512122838.243002-1-ckeepax@opensource.cirrus.com> References: <20230512122838.243002-1-ckeepax@opensource.cirrus.com> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: MUbrGEwGAujydxpQ9MWY7vjI0Bv7nAZ4 X-Proofpoint-GUID: MUbrGEwGAujydxpQ9MWY7vjI0Bv7nAZ4 X-Proofpoint-Spam-Reason: safe Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Add a function to allow ASoC drivers to easily notify an ALSA control change. This function will automatically add any component naming prefix into the control name. Signed-off-by: Charles Keepax --- include/sound/soc-component.h | 4 ++++ sound/soc/soc-component.c | 22 ++++++++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h index 0814ed1438640..0b47603c9db29 100644 --- a/include/sound/soc-component.h +++ b/include/sound/soc-component.h @@ -454,6 +454,10 @@ int snd_soc_component_force_enable_pin_unlocked( struct snd_soc_component *component, const char *pin); +/* component controls */ +int snd_soc_component_notify_control(struct snd_soc_component *component, + const char * const ctl); + /* component driver ops */ int snd_soc_component_open(struct snd_soc_component *component, struct snd_pcm_substream *substream); diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index ff25718ff2e88..4356cc320fea0 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -236,6 +236,28 @@ int snd_soc_component_force_enable_pin_unlocked( } EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin_unlocked); +int snd_soc_component_notify_control(struct snd_soc_component *component, + const char * const ctl) +{ + char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + struct snd_kcontrol *kctl; + + if (component->name_prefix) + snprintf(name, ARRAY_SIZE(name), "%s %s", component->name_prefix, ctl); + else + snprintf(name, ARRAY_SIZE(name), "%s", ctl); + + kctl = snd_soc_card_get_kcontrol(component->card, name); + if (!kctl) + return soc_component_ret(component, -EINVAL); + + snd_ctl_notify(component->card->snd_card, + SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_component_notify_control); + /** * snd_soc_component_set_jack - configure component jack. * @component: COMPONENTs