From nobody Wed Dec 24 10:21:22 2025 Received: from mail-pg1-f169.google.com (mail-pg1-f169.google.com [209.85.215.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 64BEB52F72 for ; Mon, 29 Jan 2024 07:52:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.169 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706514757; cv=none; b=dPUmKC5xx4dp03gq8rhH3KFn2td6xcEg5DfKfZ5BgGRj/+CN5q6h1Qx2MT8UqMxjJ4QOm5rIEkCTaA8ec2LWkAQuu1ohsu9tfmNsRBYSPQuxTW1A3Yo0dTi/bQXOLX28RnTg1a9Mt0E2s4xioAt5+kAu3FVWAJ6oJVjVWo1YrLU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706514757; c=relaxed/simple; bh=b4SvtNNZZGQQZdkuWZ0Rfu0VJ9qiw++F96jBPPIZhZs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=TY1Jm6x7QG5VCStTU2oPUEKZTfPAtGybcSCXAJDGl/VwTKY6mb8p35rk4I1Zbx871MWY3coebaX09RYBtZi/6R0BP+jWQt0WEBLyUpxuX3rjIQFNZ30HiU4xGdMAf9RzQFJjDgWJYPXsPO01FncL/MMGTZ6x3HwWov1WloBShbY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=W4lsAjBx; arc=none smtp.client-ip=209.85.215.169 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="W4lsAjBx" Received: by mail-pg1-f169.google.com with SMTP id 41be03b00d2f7-5d7005ea1d0so1452904a12.1 for ; Sun, 28 Jan 2024 23:52:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1706514755; x=1707119555; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=ye389EYHKjCvOugxyWLCxfbNKt/VTFay9WwnmjxJvTs=; b=W4lsAjBxHQm7QXmyNb+3hWsn9nobuZ7MjYsar9oe+qBd9cqKtW6fWp/R5RgQActyoC 4/aAsg2YErI1c3wRU+JwRCZMtOs1r2eZU8JTQ8SgXSF8KpiWvLobsC6CQ3fIw8KeZszn Ll3zls6VBVYGDAwxxZAwtvnz/gfe4CmRIjNe4gu5knhfRs7oAVjCv8ipygo5TidJFKx/ Ai5Ox3Sjnqk35Z3fgvS+r69gUA7KJ4ikxhZ2Hy6zjRwt4hd3o5OTZcpKS+unzZ1S9nQc k4Z9/ySlzcMlYw//QCX/52SlbY/majXBBb1rOiUPtGsf1XfjnWBNsbxXOxV9fPcwQGgb 3Osg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706514755; x=1707119555; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ye389EYHKjCvOugxyWLCxfbNKt/VTFay9WwnmjxJvTs=; b=JLlNCD4o997hE8NbxFEs0+Uhw/Tdgdrl3a+LBdzK89YjMjwKqXJo8ejTeN/MfXzxuZ KwcaIXN8ptpLiOXHGOzBZhbbgOm7X18yUUPvhFzK4Ylt8aNfcBgKoaUYKeUuYwk9XY/M LRnwWNCc0l1KygegQorIkUhE/Tnod+bSchn/ADogyB/S8RSKVXh2goSekFpy1Z29Hbqz BFE0hxNpIfbujKmeuKy3AS2FkYqgiFuNZXlBwtnpwkv3c1OhSIMeJ91MDaRrcaS89hhY SeW5B7wb/8ph8XoVPY1rhSjmsU4qvpB4FuwRQcWQ7s3VzyEUcj0N5O2JGjVDacqSMBOH oQRw== X-Gm-Message-State: AOJu0YxWlESCtJPSiO7ZPephGaaSqGVtTYDn1f9l+wY0CycLhZnotEKN KyaJgnGETYuLy1Lx2qU/JsYbI3ezWqjnr8UZ9G6VBmCXWNh7A4vPTbD6hgihCA+ASz7e6no/p/U = X-Google-Smtp-Source: AGHT+IGMW4acCOBEdcGx3tBpKvP++zu0zoTSI8NbWDb0gPVWT12Ornuhd09cfb+ORmRXMqyRCfh++A== X-Received: by 2002:a05:6a20:9587:b0:19c:8673:77 with SMTP id iu7-20020a056a20958700b0019c86730077mr5208625pzb.2.1706514755444; Sun, 28 Jan 2024 23:52:35 -0800 (PST) Received: from [127.0.1.1] ([117.193.214.109]) by smtp.gmail.com with ESMTPSA id t19-20020a62d153000000b006dddd685bbesm5467329pfl.122.2024.01.28.23.52.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 28 Jan 2024 23:52:35 -0800 (PST) From: Manivannan Sadhasivam Date: Mon, 29 Jan 2024 13:22:05 +0530 Subject: [PATCH 2/3] scsi: ufs: qcom: Clarify the comment of core_reset property 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: <20240129-ufs-core-reset-fix-v1-2-7ac628aa735f@linaro.org> References: <20240129-ufs-core-reset-fix-v1-0-7ac628aa735f@linaro.org> In-Reply-To: <20240129-ufs-core-reset-fix-v1-0-7ac628aa735f@linaro.org> To: Bjorn Andersson , Konrad Dybcio , Alim Akhtar , Avri Altman , Bart Van Assche , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andy Gross , Andy Gross , "James E.J. Bottomley" , "Martin K. Petersen" Cc: linux-arm-msm@vger.kernel.org, linux-scsi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Manivannan Sadhasivam X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=openpgp-sha256; l=1271; i=manivannan.sadhasivam@linaro.org; h=from:subject:message-id; bh=b4SvtNNZZGQQZdkuWZ0Rfu0VJ9qiw++F96jBPPIZhZs=; b=owEBbQGS/pANAwAKAVWfEeb+kc71AcsmYgBlt1kv1hrO9+0MMLmC+cLokw5vh0sPSCLyGClUL iO40O5pPy6JATMEAAEKAB0WIQRnpUMqgUjL2KRYJ5dVnxHm/pHO9QUCZbdZLwAKCRBVnxHm/pHO 9bh0CACPfxmuj/KcHNlhnpH/G/Dg1ykQ5lhbNfrrhMDXVU0Jb0xfTcfNLuTqFkKYX4PZl95a4c/ CrFfQg8SWnAAu5DVuUOFenyIsOTbRjHVABF0ZeAHR4KlxAkfRHTiVAoI2PoQWy/8q9tepAsPeuo WbNTSDwdyvBRt3pYy9XkVtENiGT7McWlnrEKDF5iffiPSIP6u8xj//GzK8JlcJhUftRsL+INDKw 46d15Qj3cfgBVAHOd4Q2XCxHptMHOUBxEUfCqT3RBvu3ATGSJ5KUzD1QnE1re6PjR2JhRMSqpxE QDgq9N7F57ExO8JINPdbH7NRyrMjvaEyarMjUH3s5Ndgaqup X-Developer-Key: i=manivannan.sadhasivam@linaro.org; a=openpgp; fpr=C668AEC3C3188E4C611465E7488550E901166008 core_reset is not an optional property for the platforms supported in upstream. Only for the non-upstreamed legacy platforms it is optional. But somehow a few of the upstreamed platforms do not pass this property by mistake. So clarify the comment to make it clear that even though core_reset is required, it is kept as optional to support the DTs that do not pass this property. Signed-off-by: Manivannan Sadhasivam --- drivers/ufs/host/ufs-qcom.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 39eef470f8fa..32760506dfeb 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1027,7 +1027,11 @@ static int ufs_qcom_init(struct ufs_hba *hba) host->hba =3D hba; ufshcd_set_variant(hba, host); =20 - /* Setup the optional reset control of HCI */ + /* + * Even though core_reset is required on all platforms, some DTs never + * passed this property. So we have to keep it optional for supporting + * them. + */ host->core_reset =3D devm_reset_control_get_optional(hba->dev, "rst"); if (IS_ERR(host->core_reset)) { err =3D dev_err_probe(dev, PTR_ERR(host->core_reset), --=20 2.25.1