From patchwork Wed Nov 23 16:58:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Fitzgerald X-Patchwork-Id: 627927 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 69647C43217 for ; Wed, 23 Nov 2022 17:00:02 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 7590A16C6; Wed, 23 Nov 2022 17:59:10 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 7590A16C6 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1669222800; bh=UD3Oq2/FRMWlulxCdRvtKOGckKBj3kx23i+Y5UBBYwY=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=hhcP7DceuflyNuKuqw4qHVWznUWWD1RhHsOjb3HVKB3WlTg+sh/c0yTK/FeTwJnNY 7CB9rH0SpE3o+weZ8QEiD6Qk147sfucVmLMjlqfCiFowgTeQ1J+AG7moLz1JrIkjJ9 MQoiOv+G0mgoxIf9KlN5fdAY2RLt+UTscls3Ipns= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id BB3A3F80558; Wed, 23 Nov 2022 17:58:24 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id DE8D5F8030F; Wed, 23 Nov 2022 17:58:22 +0100 (CET) Received: from mx0b-001ae601.pphosted.com (mx0a-001ae601.pphosted.com [67.231.149.25]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 0AB81F800BB for ; Wed, 23 Nov 2022 17:58:15 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 0AB81F800BB Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=cirrus.com header.i=@cirrus.com header.b="VXbQ8tse" Received: from pps.filterd (m0077473.ppops.net [127.0.0.1]) by mx0a-001ae601.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2ANFXqhH006843; Wed, 23 Nov 2022 10:58:14 -0600 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=h6RfvX774aia7JX50zH3ODFQb8VZzmsKWXVtJMdQgIk=; b=VXbQ8tsenmwlYB1tA4hCBFRT6LaPRR2H+y5KFKl4j6wUQ569xomIUt4Uh7krNpAnMLjS ZWBFFmXa6ltDcUv/FItmlux3m0iTaDuqSS2o2lZ33TORSR3tmEK8kloCtm+7xUqKX6Cd FbQX3obbsmq01zGkqNW4yjfYBVhuuDFzWPOYq7kj03Um+kIpfbEJ2V7hVKU79VUxqYv1 c0IdEQG6SA/KIBCn81+bi35oad5mUG/dkU/IOwA8C7bRHGFV1HIHpm5akAB3kuneWfBw 8emRISR7Do1wx3oTQ4gtm9H1GZF+65D9emD+K8NpKHX2kNSmmmo0BtvTNrN/tlBsEQcP eg== Received: from ediex02.ad.cirrus.com ([84.19.233.68]) by mx0a-001ae601.pphosted.com (PPS) with ESMTPS id 3kxwe6w535-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 23 Nov 2022 10:58:14 -0600 Received: from ediex01.ad.cirrus.com (198.61.84.80) by ediex02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.20; Wed, 23 Nov 2022 10:58:11 -0600 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.2.1118.20 via Frontend Transport; Wed, 23 Nov 2022 10:58:11 -0600 Received: from edi-sw-dsktp-006.ad.cirrus.com (edi-sw-dsktp-006.ad.cirrus.com [198.90.251.111]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 7DF03477; Wed, 23 Nov 2022 16:58:11 +0000 (UTC) From: Richard Fitzgerald To: Subject: [PATCH v2 2/2] ASoC: wm_adsp: Return whether changed when writing controls Date: Wed, 23 Nov 2022 16:58:11 +0000 Message-ID: <20221123165811.3014472-3-rf@opensource.cirrus.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221123165811.3014472-1-rf@opensource.cirrus.com> References: <20221123165811.3014472-1-rf@opensource.cirrus.com> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: fCV41dzgLXv_ENcHJf7fsGestb3xhgUU X-Proofpoint-GUID: fCV41dzgLXv_ENcHJf7fsGestb3xhgUU X-Proofpoint-Spam-Reason: safe Cc: patches@opensource.cirrus.com, alsa-devel@alsa-project.org, Richard Fitzgerald , Simon Trimmer , linux-kernel@vger.kernel.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Simon Trimmer Functions that update cs_dsp controls need to handle return codes that indicate whether the control value changed. A return code of 1 indicates a change, 0 indicates no-change and a negative value is an error condition. Acked controls implicitly change value when written so a successful write shall always report that the value changed. Signed-off-by: Simon Trimmer Signed-off-by: Richard Fitzgerald --- sound/soc/codecs/wm_adsp.c | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-) diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index 34a94b011518..02fbffd73853 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -419,16 +420,21 @@ static int wm_coeff_tlv_put(struct snd_kcontrol *kctl, (struct soc_bytes_ext *)kctl->private_value; struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; + void *scratch; int ret = 0; - mutex_lock(&cs_ctl->dsp->pwr_lock); + scratch = vmalloc(size); + if (!scratch) + return -ENOMEM; - if (copy_from_user(cs_ctl->cache, bytes, size)) + if (copy_from_user(scratch, bytes, size)) { ret = -EFAULT; - else - ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, cs_ctl->cache, size); - - mutex_unlock(&cs_ctl->dsp->pwr_lock); + } else { + mutex_lock(&cs_ctl->dsp->pwr_lock); + ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, scratch, size); + mutex_unlock(&cs_ctl->dsp->pwr_lock); + } + vfree(scratch); return ret; } @@ -455,7 +461,10 @@ static int wm_coeff_put_acked(struct snd_kcontrol *kctl, mutex_unlock(&cs_ctl->dsp->pwr_lock); - return ret; + if (ret < 0) + return ret; + + return 1; } static int wm_coeff_get(struct snd_kcontrol *kctl, @@ -682,10 +691,10 @@ int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type, int ret; ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len); - if (ret) + if (ret < 0) return ret; - if (cs_ctl->flags & WMFW_CTL_FLAG_SYS) + if (ret == 0 || (cs_ctl->flags & WMFW_CTL_FLAG_SYS)) return 0; ctl = cs_ctl->priv;