From nobody Sun Feb 8 18:34:10 2026 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 B3279C6FD1D for ; Mon, 20 Mar 2023 11:23:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229933AbjCTLXF (ORCPT ); Mon, 20 Mar 2023 07:23:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51464 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229799AbjCTLW7 (ORCPT ); Mon, 20 Mar 2023 07:22:59 -0400 Received: from mx0b-001ae601.pphosted.com (mx0b-001ae601.pphosted.com [67.231.152.168]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1CF702101 for ; Mon, 20 Mar 2023 04:22:56 -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 32K6vbPo027039; Mon, 20 Mar 2023 06:22:48 -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=KSx4vfnoG0hKeX0+I8Xc6vC4Q61Hdoi1UYzczfNsx1Y=; b=BQNxWbGH7SKB3VY+kGUk3uN5aDgbnmRvb7obwKuA3UbVlwsyq9JpYQ9ZgZDgnzU343fl vy7tJdcy2+WDtvJyJTRAC8hYkQbgIFJ1Fb5R6PNyiqkW9GUXDdMF183Izbf91GLRFr3/ kOeWy4ZstEoyikWzffg7T0Vurz+Y/p0f6CN+lrjDfL+RHkSp6AbHprLfCOyCFyVa0TCD U+oLPjH9BcgHHXUIf9laWxz7jlzVMp8h9LnxXQxTVDbCkUtLNq7zQ+fqVwiEYG0vSR/V 5oW37KuyFqJMB+4nQrlfA9QG7SRfbVr+Y38oC96POiae0/w9DUtlFTqFOUSMJJaZpzmA +A== Received: from ediex01.ad.cirrus.com ([84.19.233.68]) by mx0b-001ae601.pphosted.com (PPS) with ESMTPS id 3pd9qptc81-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 20 Mar 2023 06:22:47 -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 15.2.1118.25; Mon, 20 Mar 2023 06:22:45 -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 15.2.1118.25 via Frontend Transport; Mon, 20 Mar 2023 06:22:45 -0500 Received: from edi-sw-dsktp-006.ad.cirrus.com (edi-sw-dsktp-006.ad.cirrus.com [198.90.251.127]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id B2B0511DF; Mon, 20 Mar 2023 11:22:45 +0000 (UTC) From: Richard Fitzgerald To: , CC: , , , , , Simon Trimmer , Richard Fitzgerald Subject: [PATCH v3 3/8] firmware: cs_dsp: Support DSPs that don't require firmware download Date: Mon, 20 Mar 2023 11:22:40 +0000 Message-ID: <20230320112245.115720-4-rf@opensource.cirrus.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230320112245.115720-1-rf@opensource.cirrus.com> References: <20230320112245.115720-1-rf@opensource.cirrus.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-GUID: VVtWws-JhmrYTN5s-NHe_po4VymYe0KK X-Proofpoint-ORIG-GUID: VVtWws-JhmrYTN5s-NHe_po4VymYe0KK X-Proofpoint-Spam-Reason: safe Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Simon Trimmer When a DSP can self-boot from ROM it is not necessary to download firmware during the powering up sequence. A DSP that required firmware download would fail in a previous configuration step if firmware was not available. Signed-off-by: Simon Trimmer Signed-off-by: Richard Fitzgerald --- drivers/firmware/cirrus/cs_dsp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/firmware/cirrus/cs_dsp.c b/drivers/firmware/cirrus/cs_= dsp.c index 97b73a254380..513136a924cf 100644 --- a/drivers/firmware/cirrus/cs_dsp.c +++ b/drivers/firmware/cirrus/cs_dsp.c @@ -1301,6 +1301,9 @@ static int cs_dsp_load(struct cs_dsp *dsp, const stru= ct firmware *firmware, int regions =3D 0; int ret, offset, type; =20 + if (!firmware) + return 0; + ret =3D -EINVAL; =20 pos =3D sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer); --=20 2.30.2