From nobody Tue Dec 2 00:46:44 2025 Received: from sender3-pp-f112.zoho.com (sender3-pp-f112.zoho.com [136.143.184.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 99B352FBE0F; Mon, 24 Nov 2025 11:07:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.184.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763982457; cv=pass; b=E6odrqPHL91LIrA7VRN/XqH7p7g9TVJh9u/VZTcy/n45C4WTsrIvHhxaQF5A305qQpXelpeVi7g5HEhlY83sibnzUYFzH2tyOU5sY5aUfuvkxOjc+i17Xor7BZLBd+cGcf4Q4cTh1I72VZe1V7XBsvXtyHicLE6EnGRShkzXLFs= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763982457; c=relaxed/simple; bh=bDefho51Ly/MOjRWfAzw7rqsqszclECUY7m0unTVEg4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=dx4SmydfyNBcHRjQb0uTb/cuHxWL3btKotKagaJv28asRMI3+fRmmRnTUhzIoQqmPWbadduU/DsPTu5Eon5m1UmeM5CxwcUoELpRJqhkSVAA45twqcHx4oQtpwn0Ydh90WwD72U31QFDY9kvnynM7YAENDZENxUdHFXC1UI88aQ= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b=KmZwvMFr; arc=pass smtp.client-ip=136.143.184.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b="KmZwvMFr" ARC-Seal: i=1; a=rsa-sha256; t=1763982433; cv=none; d=zohomail.com; s=zohoarc; b=IXS8IHBlRkcxzbrqOTzjgOfUGwHgAeNekmQt1A56O8FmgN29sqvy+RBK5umlrJwt7srj03ctCnkYy6vjpLGhvMKHl25X620EkQzd0BCP9YXPQaSbKWIPTzWTJnzrchnBC1VeMPcv0vXJC22dLwVVmFiVfJwPTy8ceyYWIuMeVhs= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1763982433; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=qSGx250uhdjdakZcPHoX8Nbq5J4cWyRmd4SLOgVrrcg=; b=EjNhvEdyxDbs/2bwxjR2DwjWci/LOks7rzSYdsVfv/xKZrHfarjhKE4NQ6qJOWbgLkv4uMEw3WltDmWeytXs0zsaBiloWhbbij7AC91gCsfDMYkc3VqZ7jGm4F8ganM+iXLikrnbBV34/P2vgkbvK8isz5C9L3eamqdpnOqvogQ= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=nicolas.frattaroli@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1763982433; s=zohomail; d=collabora.com; i=nicolas.frattaroli@collabora.com; h=From:From:Date:Date:Subject:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Message-Id:References:In-Reply-To:To:To:Cc:Cc:Reply-To; bh=qSGx250uhdjdakZcPHoX8Nbq5J4cWyRmd4SLOgVrrcg=; b=KmZwvMFrlZHV0mUn6TEmW8GPNOzPiVgf1uruk15TGaZwaVIqiDuh6abQ1aihVGgF ibLFU2sEz51fQy1Yxn/JAwspmO5VUb42f2yUcTl5l7uQAN5tkeLx75vbp5ygLGphK3D MGC7rMq+gPdTd/mirTF7ZHZORoew461w9nxU1bsw= Received: by mx.zohomail.com with SMTPS id 1763982430549222.18364403003534; Mon, 24 Nov 2025 03:07:10 -0800 (PST) From: Nicolas Frattaroli Date: Mon, 24 Nov 2025 12:06:53 +0100 Subject: [PATCH v2 04/13] soc: mediatek: mtk-dvfsrc: Change error check for DVFSRCv4 START cmd Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251124-mt8196-dvfsrc-v2-4-d9c1334db9f3@collabora.com> References: <20251124-mt8196-dvfsrc-v2-0-d9c1334db9f3@collabora.com> In-Reply-To: <20251124-mt8196-dvfsrc-v2-0-d9c1334db9f3@collabora.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Henry Chen , Georgi Djakov Cc: kernel@collabora.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-pm@vger.kernel.org, Nicolas Frattaroli X-Mailer: b4 0.14.3 From: AngeloGioacchino Del Regno In preparation for adding support for DVFSRC Version 4, change the error check for the MTK_SIP_DVFSRC_START command in the probe function to error out only if BIT(0) is set: this is still valid for the previous DVFSRC versions, as those always set this bit in a fail reply anyway. Signed-off-by: AngeloGioacchino Del Regno Signed-off-by: Nicolas Frattaroli --- drivers/soc/mediatek/mtk-dvfsrc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/mediatek/mtk-dvfsrc.c b/drivers/soc/mediatek/mtk-d= vfsrc.c index 41add5636b03..7708b07ab2d6 100644 --- a/drivers/soc/mediatek/mtk-dvfsrc.c +++ b/drivers/soc/mediatek/mtk-dvfsrc.c @@ -440,7 +440,7 @@ static int mtk_dvfsrc_probe(struct platform_device *pde= v) /* Everything is set up - make it run! */ arm_smccc_smc(MTK_SIP_DVFSRC_VCOREFS_CONTROL, MTK_SIP_DVFSRC_START, 0, 0, 0, 0, 0, 0, &ares); - if (ares.a0) + if (ares.a0 & BIT(0)) return dev_err_probe(&pdev->dev, -EINVAL, "Cannot start DVFSRC: %lu\n", = ares.a0); =20 return 0; --=20 2.52.0