From patchwork Wed May 11 15:26:30 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krishna Kurapati X-Patchwork-Id: 12846367 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 F4011C43217 for ; Wed, 11 May 2022 15:26:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=PB3EI7O1F8RZNcVfKR/MnwpOvCfRoT8XzuxCin4bYxo=; b=TJ3FOJCM5AvCpg t7/VgCSc/4O3x64O9WDnTg9S2buEJ9JW/oG8yclUW/3aM2jQFwtCuhVGM+aSQb331Erfi6rEEkExK 8Fh/5YJMRoDjpYPJ5PLjR7CZfAjn7VL5/o3Lcz36ObukqSzpVT05J8msqzT5dxnpVz1V9bNMccmkM V+VIeki7PGwJJHc2E1kfXXQZ0LD1dhMc0Vv/Qn2ioB9SmjIAqbt870H/A4GNdU8N5J+/DEt4V2qTT AGFtQwz7SvTPdDaG7s4EQ0F1zVihs0qHS2DM6XR/KdnFe6/5i2citl4FsQIdsy86dLSQjU4RkZWkn bHjQZ0wUF3e9uyvSCAlg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nooEn-007Z8N-Cz; Wed, 11 May 2022 15:26:53 +0000 Received: from alexa-out.qualcomm.com ([129.46.98.28]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nooEl-007Z6w-En for linux-phy@lists.infradead.org; Wed, 11 May 2022 15:26:52 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1652282811; x=1683818811; h=from:to:cc:subject:date:message-id:mime-version; bh=Yi9LJBhnqd+smrwN+Li92FvAzGGipooxSzDz2KcFTpI=; b=g22oL0tNViHEiN09LPf20S6fQMOVDOyJchwSh/5Dcj1y+7ABi294APnC zqUYJdIer+A2JDP5dkqvqQVYqwjMw+87BHgrI8XtvEHZfIMnyGPScEGh2 joDzlj3q2TJNMRsMDrJMCDMZr6T4gLrvAzECwY7Smn2W9uO6UNYmOapUU w=; Received: from ironmsg-lv-alpha.qualcomm.com ([10.47.202.13]) by alexa-out.qualcomm.com with ESMTP; 11 May 2022 08:26:50 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg-lv-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 08:26:49 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Wed, 11 May 2022 08:26:44 -0700 Received: from hu-kriskura-hyd.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Wed, 11 May 2022 08:26:38 -0700 From: Krishna Kurapati To: Krzysztof Kozlowski , Rob Herring , Andy Gross , Bjorn Andersson , Greg Kroah-Hartman , Stephen Boyd , "Doug Anderson" , Matthias Kaehlcke , Wesley Cheng , Vinod Koul CC: , , , , , , , , Krishna Kurapati Subject: [v4 0/3] Add QCOM SNPS PHY overriding params support Date: Wed, 11 May 2022 20:56:30 +0530 Message-ID: <1652282793-5580-1-git-send-email-quic_kriskura@quicinc.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220511_082651_571252_4A42BEAF X-CRM114-Status: UNSURE ( 8.35 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org Added support for overriding tuning parameters in QCOM SNPS PHY from device tree. changes in v4: Fixed nitpicks in code. Initial compliance test results showed overshoot in the middle of eye diagram. The current dt values were put in place to correct it and fix overshoot issue. changes in v3: Added support for phy tuning parameters to be represented in bps and corresponding register values to be written are obtained by traversing through data map declared in the driver. changes in v2: Reading the individual fields in each overriding register from device tree. Krishna Kurapati (2): phy: qcom-snps: Add support for overriding phy tuning parameters arm64: dts: qcom: sc7280: Update SNPS Phy params for SC7280 IDP device Sandeep Maheswaram (1): dt-bindings: phy: qcom,usb-snps-femto-v2: Add phy override params bindings .../bindings/phy/qcom,usb-snps-femto-v2.yaml | 87 +++++++ arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 6 + drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c | 267 ++++++++++++++++++++- 3 files changed, 358 insertions(+), 2 deletions(-)