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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 271A6C4332F for ; Mon, 4 Oct 2021 20:01:00 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E4634613D2 for ; Mon, 4 Oct 2021 20:00:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org E4634613D2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 05EDC6E1FB; Mon, 4 Oct 2021 20:00:59 +0000 (UTC) Received: from mail-ot1-x32c.google.com (mail-ot1-x32c.google.com [IPv6:2607:f8b0:4864:20::32c]) by gabe.freedesktop.org (Postfix) with ESMTPS id BFCEF6E187 for ; Mon, 4 Oct 2021 20:00:57 +0000 (UTC) Received: by mail-ot1-x32c.google.com with SMTP id 97-20020a9d006a000000b00545420bff9eso23124515ota.8 for ; Mon, 04 Oct 2021 13:00:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=J/N5xXP3XszcLimjb3V0HTC1MVBpgM9ZA1sK5TjSsuA=; b=fb1ynP6sdAZcOAKPf6k0RP4Z/fnaQKYx7e04HillspFj6WBenAjxlvclyFWB1u2TZ9 7Rtsh8/fQRbD5ApkZsPyqQ37XTRuI7F/kS0OahUBHXC2YvMGVYPgHCo+xWLMiRTczbKM JxF+o1KgtYXMwpDvUg5xEbyNIOnrMtY/lc30PehqZbXMQ2+yBNucEIS78+2oWiqJcDTf vRG7+zhoSPdMOuv5l77jMhPvyoGJR9j2QnhrZXR7uvc/UE8GrmY5AWSYG8+VCU2kzqCg qFqzD3u+nI/nvPFOmCbwc+wTR3RKxZ8LRqtWOERt+yCpkBEP2M/a1nlSUTzDH79CeeZ1 68Ug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=J/N5xXP3XszcLimjb3V0HTC1MVBpgM9ZA1sK5TjSsuA=; b=m59RTfcBWYTF0I+qrICRMrrOhNpumwjw12jScrEecRibW74KGD0CJMCeD0Ym0DE1JG udeG0NblA11npjB6QNKLttSC7wMVrV2yviiug5T2RCzroG/gXGPwqohv90TEPhWVGsBi FhKGsxtH1MtPH4jIuI0dKcQHi+1Ocj4uvm7oGF5fBcupSHw/SOL+9enzZIQgoTkVe/xh B3vJMZGKxyxBH/vYosuaOgbLtogHtEjBR3vgbssD31eu49sTORTWD3c1U23SqYbWs93z s9wAmx5gYT9OLCdmzWz1aufeJ4wGCY3n/NbPGQeptcdiHmadmAWcTO9T/oVAN4W522eg 2Xqw== X-Gm-Message-State: AOAM531SjSHooIFy4ZOQboCXMxTrXLZgIA7U2Ks9+eXgaxMBxPsH1nt8 sa2JErQqkxjr4IPM1oo8BrsYwg== X-Google-Smtp-Source: ABdhPJwuV9CjiGCB4paZPKDuSfcGCVQJII2+BskiX5DRJsygA14pmy/OLbebzffWeLf1NgXHPzxkuw== X-Received: by 2002:a9d:458b:: with SMTP id x11mr10945333ote.313.1633377656946; Mon, 04 Oct 2021 13:00:56 -0700 (PDT) Received: from builder.lan ([2600:1700:a0:3dc8:3697:f6ff:fe85:aac9]) by smtp.gmail.com with ESMTPSA id c5sm3052476otb.35.2021.10.04.13.00.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Oct 2021 13:00:56 -0700 (PDT) Date: Mon, 4 Oct 2021 15:00:54 -0500 From: Bjorn Andersson To: Sean Paul Cc: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, freedreno@lists.freedesktop.org, swboyd@chromium.org, jani.nikula@linux.intel.com, Sean Paul , Rob Herring , Rob Clark , David Airlie , Daniel Vetter , Rob Herring , Kuogee Hsieh , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH v3 12/14] dt-bindings: msm/dp: Add bindings for HDCP registers Message-ID: References: <20211001151145.55916-1-sean@poorly.run> <20211001151145.55916-13-sean@poorly.run> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211001151145.55916-13-sean@poorly.run> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Fri 01 Oct 10:11 CDT 2021, Sean Paul wrote: > From: Sean Paul > > This patch adds the bindings for the MSM DisplayPort HDCP registers > which are required to write the HDCP key into the display controller as > well as the registers to enable HDCP authentication/key > exchange/encryption. > > We'll use a new compatible string for this since the fields are optional. > > Cc: Rob Herring > Cc: Stephen Boyd > Signed-off-by: Sean Paul > Link: https://patchwork.freedesktop.org/patch/msgid/20210913175747.47456-13-sean@poorly.run #v1 > Link: https://patchwork.freedesktop.org/patch/msgid/20210915203834.1439-13-sean@poorly.run #v2 > > Changes in v2: > -Drop register range names (Stephen) > -Fix yaml errors (Rob) > Changes in v3: > -Add new compatible string for dp-hdcp > -Add descriptions to reg > -Add minItems/maxItems to reg > -Make reg depend on the new hdcp compatible string > --- > > Disclaimer: I really don't know if this is the right way to approach > this. I tried using examples from other bindings, but feedback would be > very much welcome on how I could add the optional register ranges. > > > .../bindings/display/msm/dp-controller.yaml | 34 ++++++++++++++++--- > 1 file changed, 30 insertions(+), 4 deletions(-) > > diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml > index 64d8d9e5e47a..a176f97b2f4c 100644 > --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml > +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml > @@ -17,9 +17,10 @@ properties: > compatible: > enum: > - qcom,sc7180-dp > + - qcom,sc7180-dp-hdcp > > - reg: > - maxItems: 1 > + # See compatible-specific constraints below. > + reg: true > > interrupts: > maxItems: 1 > @@ -89,6 +90,29 @@ required: > - power-domains > - ports > > +allOf: > + - if: > + properties: > + compatible: > + contains: > + const: qcom,sc7180-dp-hdcp > + then: > + properties: > + reg: > + minItems: 3 > + maxItems: 3 > + items: > + - description: Registers for base DP functionality > + - description: (Optional) Registers for HDCP device key injection > + - description: (Optional) Registers for HDCP TrustZone interaction > + else: > + properties: > + reg: > + minItems: 1 > + maxItems: 1 > + items: > + - description: Registers for base DP functionality > + > additionalProperties: false > > examples: > @@ -99,8 +123,10 @@ examples: > #include > > displayport-controller@ae90000 { > - compatible = "qcom,sc7180-dp"; > - reg = <0xae90000 0x1400>; > + compatible = "qcom,sc7180-dp-hdcp"; > + reg = <0 0x0ae90000 0 0x1400>, > + <0 0x0aed1000 0 0x174>, > + <0 0x0aee1000 0 0x2c>; Forgot to mention, #address-cells = #size-cells = <1> in the example "environment", so you have to omit the lone 0s in the example to make it pass the tests. Regards, Bjorn > interrupt-parent = <&mdss>; > interrupts = <12>; > clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>, > -- > Sean Paul, Software Engineer, Google / Chromium OS >