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a=ed25519-sha256; c=relaxed/relaxed; t=1779983865; s=strato-dkim-0003; d=iokpp.de; h=References:In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Cc:Date: From:Subject:Sender; bh=IviommVns9hiPVnMSUnZvKPxi/VVgjC8bpy5movx/4E=; b=aotMFwwcQ9ewPx5q0H5GHbGjB9uzpdCvlD2sdFwoimnSl8v90qfy+NDeDmqvLyqk1r Ry4cNfPJRFfjEgiSqfAg== X-RZG-AUTH: ":LmkFe0i9dN8c2t4QQyGBB/NDXvjDB6pBSe9tgBDSDt0V0DBslXBtZUxPOub3IZik" Received: from [10.176.237.182] by smtp.strato.de (RZmta 55.0.1 AUTH) with ESMTPSA id z7934524SFviWed (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits)) (Client did not present a certificate); Thu, 28 May 2026 17:57:44 +0200 (CEST) Message-ID: <2eebab271afadb659a786e6e66e04560dda0a38d.camel@iokpp.de> Subject: Re: [PATCH v4 1/2] dt-bindings: ufs: Document static TX Equalization settings properties From: Bean Huo To: Can Guo , bvanassche@acm.org, beanhuo@micron.com, peter.wang@mediatek.com, martin.petersen@oracle.com, mani@kernel.org Cc: linux-scsi@vger.kernel.org, Alim Akhtar , Avri Altman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Ram Kumar Dwivedi , Zhaoming Luo , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , open list Date: Thu, 28 May 2026 17:57:43 +0200 In-Reply-To: <20260528100614.3386423-2-can.guo@oss.qualcomm.com> References: <20260528100614.3386423-1-can.guo@oss.qualcomm.com> <20260528100614.3386423-2-can.guo@oss.qualcomm.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.44.4-0ubuntu2.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Thu, 2026-05-28 at 03:06 -0700, Can Guo wrote: > UFS v5.0/UFSHCI v5.0 add HS-G6 support (46.6 Gbps/lane) via UniPro v3.0 > and M-PHY v6.0. In these specs, TX Equalization is defined for all High > Speed Gears (not only HS-G6) to compensate channel loss and improve signa= l > integrity at high speed operation. >=20 > For HS-G6, M-PHY uses PAM4 1b1b line coding, Pre-Coding may also be > required depending on channel characteristics. >=20 > Add vendor-neutral DT properties: >=20 > - patternProperties for txeq-preshoot-g[1-6] and txeq-deemphasis-g[1-6] > - fixed property tx-precode-enable-g6 >=20 > Each property is a uint32 array of per-lane tuples: > , [] >=20 > Accept 2 or 4 values (x1/x2 lane configs). PreShoot and DeEmphasis values > are 0..7. Precode enable values are 0/1 and only applicable to HS-G6. >=20 > Acked-by: Manivannan Sadhasivam > Signed-off-by: Can Guo Looks good to me! Reviewed-by: Bean Huo