From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 B82AF1C6FF5; Thu, 24 Jul 2025 07:48:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753343339; cv=none; b=QPuB0tpKbUOXbt4Es4TTIg0xNu3EVqM/RoZ9EgxAX8IeLkRWtsvHTY7UOw154Q6yn19p3V7sJ1pB/eztN0IimrFA/x1+qHubkPiqbqUzsPpQA2ie/Apk3pQeKoHzXsP+46SpYWpEzKSp25xoy5kR6jfXrgauDKUem4TBNi0lxBQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753343339; c=relaxed/simple; bh=NI4Xsn+AHphq0nQmPKGkseyydMYAdKQD92tE9tB2Yo8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=TvLCX8qY2zRSH463yabTSRP+6zqev3pz1sJ0knnvyeNnRyuV+tAWlmh4sougIu5RTIzVx0jGIeAuB2cyT5NEkjw6YAZaqbkGmfsHtkOECBX0bIujd9E8lg1wo59GerPzhTTrAiSfzcXoT+chn/P2MPBHEOzVaS1wwTs1N16AVFc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DEEBXjYh; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DEEBXjYh" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 70549C4CEED; Thu, 24 Jul 2025 07:48:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753343339; bh=NI4Xsn+AHphq0nQmPKGkseyydMYAdKQD92tE9tB2Yo8=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=DEEBXjYhmecN4W6Z8V6tqr5IE9X2qaqUtzLTbvlWH3DCqOskhO+VPyxbYdex/c19i +VK9DZD3Sw93tGYyc3wJ9IDra0MMftOribqRTKY6nlu8VQgVeyim3HWVXB504+OlAw t/ADpJFr6xo/EoZZqXW2ezL6vwpZY8nmbyXK4coOSVQk/Y5xz8iUUJ+3HCJh4Csv8v Vj82lSauaY/H10iG4kOo142YeHVVvO80l4Y0ynpTCug4+2reT/teOV98Wz4oKyL8xx v4cRR3JoZHD2bZabJ53t/bQ6RfkjjJ6CPy5J65M8puOWMqtnjpjpen1HtsxcBIHvgG Mvxb0TaTpkyYw== Message-ID: <2a3c8867-7745-4f0a-8618-0f0f1bea1d14@kernel.org> Date: Thu, 24 Jul 2025 09:48:53 +0200 Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/3] arm64: dts: qcom: sa8155: Add gear and rate limit properties to UFS To: Ram Kumar Dwivedi , mani@kernel.org, alim.akhtar@samsung.com, avri.altman@wdc.com, bvanassche@acm.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andersson@kernel.org, konradybcio@kernel.org, James.Bottomley@HansenPartnership.com, martin.petersen@oracle.com, agross@kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-scsi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250722161103.3938-1-quic_rdwivedi@quicinc.com> <20250722161103.3938-3-quic_rdwivedi@quicinc.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 22/07/2025 18:11, Ram Kumar Dwivedi wrote: > Add optional limit-hs-gear and limit-rate properties to the UFS node to > support automotive use cases that require limiting the maximum Tx/Rx HS > gear and rate due to hardware constraints. What hardware constraints? This needs to be clearly documented. Best regards, Krzysztof