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 ADAC2364EB1 for ; Mon, 18 May 2026 17:29:45 +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=1779125385; cv=none; b=aMIDBbF2nArFMblX38UtSREuykBbaGvFgLd9S6ld6B3+k8MmLcjLxl6kfhn9M460iWGvTFaOi6ill6UMH1Gx4aodBP3NiezEkiGCmGM7RslcWhDhI6RvpQ5mOTw4+bGf8pXgalgmak0vrEL++jgjc5cJFlczKlLzq7Ybd17poVM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779125385; c=relaxed/simple; bh=MT5hotBsGBvGo6ebLCh0/y2UPVnF0qNyMVgDULEhvWA=; h=From:Subject:To:Cc:In-Reply-To:References:Content-Type:Date: Message-Id; b=NImAkuiqDQ81Q9gTI+9pO1foKeLNRLmInJ05DqNE1zpjnYCRZ3zzspH+oyfy5U4dXOyMK0wSlH6Mz9YCz++pfY5REwGbNhWRDheecw4f1cUzFzbYdn32N0hcJdkawneDPhzVx3HehoTtuoID8/hJyj0djSIVXi8vuDlWHmqMFHQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=X961oXhF; 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="X961oXhF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 657FFC2BCB7; Mon, 18 May 2026 17:29:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779125385; bh=MT5hotBsGBvGo6ebLCh0/y2UPVnF0qNyMVgDULEhvWA=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date:From; b=X961oXhFdoMlepy2QzXoDEWGbenkjr9FqAYrpd5emjqgJ2BZxxSeHT/ZKNG1i+oLT EYn6bs/n9JiIgrNAfiBwsgwVcXcdhaOd5q4xnfOFp/HPpU14M9/CAu+JKhJhRIb+PA DPu97NF5LUkIXg8luzhtdQC3bLrG4phPP4t4ldRSzyolS763hM70yBIvwibNvjumfC HjdRRDhr1uU9uWp6MKfzF7nT7SemMHlg5cgDSEXAOtBxEYFTflymKBgu4sHOTNul4M 9YhhSaGiPNwCGUUlt1vpZtPOCKheZuNwCs701OYah9VxzJtk1adnPVoVe1Yzp5mJD1 G3p+J+9lR6v4w== From: sashiko-bot@kernel.org Subject: Re: [PATCH V1 3/3] phy: qcom-qmp-ufs: Add UFS PHY support on Hawi Reply-To: sashiko-reviews@lists.linux.dev To: palash.kambar@oss.qualcomm.com Cc: robh@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, vkoul@kernel.org, neil.armstrong@linaro.org, olteanv@gmail.com, linux-phy@lists.infradead.org In-Reply-To: <20260518165346.1732548-4-palash.kambar@oss.qualcomm.com> References: <20260518165346.1732548-4-palash.kambar@oss.qualcomm.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Mon, 18 May 2026 17:29:43 +0000 Message-Id: <20260518172944.657FFC2BCB7@smtp.kernel.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Thank you for your contribution! Sashiko AI review found 1 potential issue(= s) to consider: - [High] Missing UFS HS-G4 gear configuration overlay for the Hawi PHY will= leave critical hardware capabilities uninitialized during G4 negotiation. -- commit a0d83dfe8a3203b506d45d5c8262f7f0b14d810a Author: Palash Kambar phy: qcom-qmp-ufs: Add UFS PHY support on Hawi Adds the initialization sequence tables and configuration for the UFS QMP PHY found in the Hawi SoC. > diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c b/drivers/phy/qualco= mm/phy-qcom-qmp-ufs.c > --- a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c > +++ b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c [ ... ] > @@ -1844,6 +1868,119 @@ static const struct qmp_phy_cfg sm8750_ufsphy_cfg= =3D { [ ... ] > +static const struct qmp_phy_init_tbl hawi_ufsphy_g5_pcs[] =3D { > + QMP_PHY_INIT_CFG(QPHY_V7_PCS_UFS_PLL_CNTL, 0x3b), > + QMP_PHY_INIT_CFG(QPHY_V7_PCS_UFS_TX_HSGEAR_CAPABILITY, 0x05), > + QMP_PHY_INIT_CFG(QPHY_V7_PCS_UFS_RX_HSGEAR_CAPABILITY, 0x05), > +}; > + > +static const struct qmp_phy_cfg hawi_ufsphy_cfg =3D { > + .lanes =3D 2, > + > + .offsets =3D &qmp_ufs_offsets_v7, > + .max_supported_gear =3D UFS_HS_G5, > + > + .tbls =3D { > + .serdes =3D hawi_ufsphy_serdes, > + .serdes_num =3D ARRAY_SIZE(hawi_ufsphy_serdes), > + .tx =3D hawi_ufsphy_tx, > + .tx_num =3D ARRAY_SIZE(hawi_ufsphy_tx), > + .rx =3D hawi_ufsphy_rx, > + .rx_num =3D ARRAY_SIZE(hawi_ufsphy_rx), > + .pcs =3D hawi_ufsphy_pcs, > + .pcs_num =3D ARRAY_SIZE(hawi_ufsphy_pcs), > + }, > + > + .tbls_hs_overlay[0] =3D { > + .pcs =3D hawi_ufsphy_g5_pcs, > + .pcs_num =3D ARRAY_SIZE(hawi_ufsphy_g5_pcs), > + .max_gear =3D UFS_HS_G5, > + }, > + Is there a missing UFS HS-G4 gear configuration overlay for the Hawi PHY he= re? When the UFS controller negotiates HS-G4 (e.g., connected to a G4-only device or during fallback) and requests the PHY to operate at G4, qmp_ufs_get_gear_overlay() will fail to find a matching configuration. In qmp_ufs_get_gear_overlay(), it initializes floor_max_gear to 5. It then checks the only available table where max_gear is 5. Since submode (4) =3D=3D max_gear (5) is false, and max_gear (5) < floor_max_gear (5) is also false, it returns -EINVAL. Because qmp_ufs_get_gear_overlay() returns -EINVAL, qmp_ufs_init_registers() will skip applying any overlay. This means capabilities like QPHY_V7_PCS_UFS_TX_HSGEAR_CAPABILITY are never programmed during G4 operation. Other G5-capable PHYs (like sm8750) seem to provide both G4 and G5 overlays: static const struct qmp_phy_cfg sm8750_ufsphy_cfg =3D { [ ... ] .tbls_hs_overlay[0] =3D { .pcs =3D sm8750_ufsphy_g4_pcs, .pcs_num =3D ARRAY_SIZE(sm8750_ufsphy_g4_pcs), .max_gear =3D UFS_HS_G4, }, .tbls_hs_overlay[1] =3D { .pcs =3D sm8650_ufsphy_g5_pcs, .pcs_num =3D ARRAY_SIZE(sm8650_ufsphy_g5_pcs), .max_gear =3D UFS_HS_G5, }, [ ... ] }; Will leaving these uninitialized cause link instability or initialization failure on devices falling back to HS-G4? > + .vreg_list =3D hawi_ufsphy_vreg_l, > + .num_vregs =3D ARRAY_SIZE(hawi_ufsphy_vreg_l), > + .regs =3D ufsphy_v7_regs_layout, > +}; --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20260518165346.1732= 548-1-palash.kambar@oss.qualcomm.com?part=3D3 From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 229DDCD4F4A for ; 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Mon, 18 May 2026 17:29:49 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wP1ml-0000000GPYB-0Z1y for linux-phy@lists.infradead.org; Mon, 18 May 2026 17:29:47 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id AFC00600CB; Mon, 18 May 2026 17:29:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 657FFC2BCB7; Mon, 18 May 2026 17:29:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779125385; bh=MT5hotBsGBvGo6ebLCh0/y2UPVnF0qNyMVgDULEhvWA=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date:From; b=X961oXhFdoMlepy2QzXoDEWGbenkjr9FqAYrpd5emjqgJ2BZxxSeHT/ZKNG1i+oLT EYn6bs/n9JiIgrNAfiBwsgwVcXcdhaOd5q4xnfOFp/HPpU14M9/CAu+JKhJhRIb+PA DPu97NF5LUkIXg8luzhtdQC3bLrG4phPP4t4ldRSzyolS763hM70yBIvwibNvjumfC HjdRRDhr1uU9uWp6MKfzF7nT7SemMHlg5cgDSEXAOtBxEYFTflymKBgu4sHOTNul4M 9YhhSaGiPNwCGUUlt1vpZtPOCKheZuNwCs701OYah9VxzJtk1adnPVoVe1Yzp5mJD1 G3p+J+9lR6v4w== From: sashiko-bot@kernel.org Subject: Re: [PATCH V1 3/3] phy: qcom-qmp-ufs: Add UFS PHY support on Hawi To: palash.kambar@oss.qualcomm.com Cc: robh@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, vkoul@kernel.org, neil.armstrong@linaro.org, olteanv@gmail.com, linux-phy@lists.infradead.org In-Reply-To: <20260518165346.1732548-4-palash.kambar@oss.qualcomm.com> References: <20260518165346.1732548-4-palash.kambar@oss.qualcomm.com> Date: Mon, 18 May 2026 17:29:43 +0000 Message-Id: <20260518172944.657FFC2BCB7@smtp.kernel.org> X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sashiko-reviews@lists.linux.dev MIME-Version: 1.0 Content-Type: text/plain; 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