| Message ID | 1654066564-20518-1-git-send-email-quic_kriskura@quicinc.com |
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Return-Path: <linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org> 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 62373C433EF for <linux-phy@archiver.kernel.org>; Wed, 1 Jun 2022 06:56:33 +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=bkRaDugMNAxlYs/3tarZ+Uk+JV6wLsPaInekOAVSIQM=; b=Xgt8ORaZ3e1gII UuWV9q2NzdOC9hN/RYHDv4q9B505KQo14gieZj27a80Ab2/XVIR9ce65WkI7IQW3g36jENLfrBqji E3kl5AZ++b4MU6xn3o+tPkyWr5Vv9rTkmvdMlNd2VqL1s8E8janoDOBKSVurDWZagBDqOW7miAOhN /nzN2di40HNFA68lgrFBLvVGPSBNA7+0T4oWZn0PfcVB/bWW0sB6VWd+Wjb1Jfnuwf3sInfaZj6Ry zi0GXaxfQ1rhH4qpU1L+HuLB8bl3aIoB7hHcws50sXrY2K06IL3ngfClTwyNqh/Fj1IpG8MpBzC+z TpEwrT5MPgzUHZsJ+RrQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nwIHQ-00EHt7-Oe; Wed, 01 Jun 2022 06:56:32 +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 1nwIHO-00EHrc-Ga for linux-phy@lists.infradead.org; Wed, 01 Jun 2022 06:56:32 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1654066590; x=1685602590; h=from:to:cc:subject:date:message-id:mime-version; bh=LJQybaBM/F7Bf/W5JS+iZAoLpoQv+yfMRgTyPAvu6vg=; b=hqzteyJhLt35EFvZWQXleYynL3xReHC5sgUFWdlHxF3dIDQnpwscx7Cm 9YXfZAzAveRrisJ1F9eJHPM1CJVXDGo3+Na/oi9v0pmCKhOQVRlQCreBR eDVaWIQhhiyYN0/YQro5QiFf4KL9TiJLro68FPzAnqUx1o2mTHZ3p4QHa c=; Received: from ironmsg08-lv.qualcomm.com ([10.47.202.152]) by alexa-out.qualcomm.com with ESMTP; 31 May 2022 23:56:28 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg08-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2022 23:56:27 -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; Tue, 31 May 2022 23:56:13 -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; Tue, 31 May 2022 23:56:08 -0700 From: Krishna Kurapati <quic_kriskura@quicinc.com> To: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Rob Herring <robh+dt@kernel.org>, Andy Gross <agross@kernel.org>, Bjorn Andersson <bjorn.andersson@linaro.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Stephen Boyd <swboyd@chromium.org>, "Doug Anderson" <dianders@chromium.org>, Matthias Kaehlcke <mka@chromium.org>, Wesley Cheng <quic_wcheng@quicinc.com> CC: <devicetree@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>, <linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-phy@lists.infradead.org>, <quic_pkondeti@quicinc.com>, <quic_ppratap@quicinc.com>, <quic_vpulyala@quicinc.com>, Krishna Kurapati <quic_kriskura@quicinc.com> Subject: [PATCH v8 0/3] Add QCOM SNPS PHY overriding params support Date: Wed, 1 Jun 2022 12:26:01 +0530 Message-ID: <1654066564-20518-1-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-20220531_235630_674518_FD9DD46A X-CRM114-Status: UNSURE ( 9.84 ) 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 <linux-phy.lists.infradead.org> List-Unsubscribe: <https://lists.infradead.org/mailman/options/linux-phy>, <mailto:linux-phy-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-phy/> List-Post: <mailto:linux-phy@lists.infradead.org> List-Help: <mailto:linux-phy-request@lists.infradead.org?subject=help> List-Subscribe: <https://lists.infradead.org/mailman/listinfo/linux-phy>, <mailto:linux-phy-request@lists.infradead.org?subject=subscribe> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" <linux-phy-bounces@lists.infradead.org> Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org |
| Series | Add QCOM SNPS PHY overriding params support | expand |
Added support for overriding tuning parameters in QCOM SNPS PHY from device tree. This parameter tuning is required to tune the hs signal on dp/dm lines for electrical compliance to be successful. changes in v8: Fixed nitpick in driver code. changes in v7: Fixed nitpick in driver code and dtsi file. changes in v6: Fixed errors in dt-bindings. Fixed nitpick in driver code. changes in v5: Fixed nitpicks in code. Added minimum and maximum for each parameter added in dt-bindings. Added proper suffixes to each parameter as per dtschema. 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 | 96 ++++++++ arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 6 + drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c | 267 ++++++++++++++++++++- 3 files changed, 367 insertions(+), 2 deletions(-)