From patchwork Tue Dec 27 17:44:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuogee Hsieh X-Patchwork-Id: 637095 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5153DC4708E for ; Tue, 27 Dec 2022 17:45:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231445AbiL0Rpb (ORCPT ); Tue, 27 Dec 2022 12:45:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230475AbiL0Rpb (ORCPT ); Tue, 27 Dec 2022 12:45:31 -0500 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15EB58FC9; Tue, 27 Dec 2022 09:45:30 -0800 (PST) Received: from pps.filterd (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2BRFv5fe002157; Tue, 27 Dec 2022 17:45:22 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=Y5gAM8zG1HOAaqF3jCe7HTt11RZWruRzO8i2JLN3IYI=; b=g7VmmdGaQ5xsv9NXIQht+0PmQy8MztsIe4EBAvmMZ0cL0bAMCq51qk6qQD6dy52N5gRh aD+RWM5aNV1PCNtE8N0UGYy5h9JRE8OnAWrWdJmTkg8qPGmOOWUHXhz1FcP/aK4X2fIS DWLhIs+GZYzRyXDP/5OZxngBIf5ukQM1zWNfZOi2sG/e9kq6n9hZDxRBOGyCx94ZOfwI xrIGLNJZn5y5c9oaYkbX2+W89w1unFGjbWXcv1/Ff6i/k14aHij/wptghKDmJvCpRafb t03y7QGbqg6W7PoP5ttA0vU6dWvQb/A7yy3OLr4PlOL7cDoeXAqPhHj2gd+ZNNVlNc9v EQ== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3mnpsvnv59-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Dec 2022 17:45:21 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 2BRHjKve008788 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Dec 2022 17:45:20 GMT Received: from khsieh-linux1.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 15.2.986.36; Tue, 27 Dec 2022 09:45:19 -0800 From: Kuogee Hsieh To: , , , , , , , , , , , , , , CC: Kuogee Hsieh , , , , , Subject: [PATCH v16 1/5] arm64: dts: qcom: add data-lanes and link-freuencies into dp_out endpoint Date: Tue, 27 Dec 2022 09:44:59 -0800 Message-ID: <1672163103-31254-2-git-send-email-quic_khsieh@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1672163103-31254-1-git-send-email-quic_khsieh@quicinc.com> References: <1672163103-31254-1-git-send-email-quic_khsieh@quicinc.com> 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-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: xYQxGA99s_bMurULjgQB3t29FRQuvB0G X-Proofpoint-ORIG-GUID: xYQxGA99s_bMurULjgQB3t29FRQuvB0G X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-12-27_13,2022-12-27_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 mlxlogscore=999 phishscore=0 priorityscore=1501 mlxscore=0 suspectscore=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 adultscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2212270145 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Move data-lanes property from mdss_dp node to dp_out endpoint. Also add link-frequencies property into dp_out endpoint as well. The last frequency specified at link-frequencies will be the max link rate supported by DP. Changes in v5: -- revert changes at sc7180.dtsi and sc7280.dtsi -- add &dp_out to sc7180-trogdor.dtsi and sc7280-herobrine.dtsi Changes in v6: -- add data-lanes and link-frequencies to yaml Changes in v7: -- change 160000000 to 1620000000 -- separate yaml to different patch Changes in v8: -- correct Bjorn mail address to kernel.org Changes in v9: -- use symbol rate (hz) for link-frequencies at dp_out at sc7180_trogdor.dtsi Changes in v13: -- delete an extra space at data-lanes Changes in v15: -- replace space with tab at sc7180-trogdor.dtsi Changes in v16: -- rename dp_out with mdss_dp_Out and keep the order Signed-off-by: Kuogee Hsieh --- arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 4 ++++ arch/arm64/boot/dts/qcom/sc7180.dtsi | 2 +- arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi | 4 ++++ arch/arm64/boot/dts/qcom/sc7280.dtsi | 2 +- 4 files changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi index eae22e6..21fbaff 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi @@ -814,7 +814,11 @@ hp_i2c: &i2c9 { status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&dp_hot_plug_det>; +}; + +&mdss_dp_out { data-lanes = <0 1>; + link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000>; }; &pm6150_adc { diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi index 58976a1b..0a90cce 100644 --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi @@ -3119,7 +3119,7 @@ port@1 { reg = <1>; - dp_out: endpoint { }; + mdss_dp_out: endpoint { }; }; }; diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi index c11e371..3f6f1c9 100644 --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi @@ -442,7 +442,11 @@ ap_i2c_tpm: &i2c14 { status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&dp_hot_plug_det>; +}; + +&mdss_dp_out { data-lanes = <0 1>; + link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>; }; &mdss_mdp { diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi index 2125803..43ef6dc 100644 --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi @@ -4135,7 +4135,7 @@ port@1 { reg = <1>; - dp_out: endpoint { }; + mdss_dp_out: endpoint { }; }; }; From patchwork Tue Dec 27 17:45:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuogee Hsieh X-Patchwork-Id: 637094 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 731B4C4708D for ; Tue, 27 Dec 2022 17:45:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232172AbiL0Rpu (ORCPT ); Tue, 27 Dec 2022 12:45:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48804 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232128AbiL0Rpo (ORCPT ); Tue, 27 Dec 2022 12:45:44 -0500 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 537ACD10C; 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Tue, 27 Dec 2022 17:45:23 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 2BRHjMvA027859 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Dec 2022 17:45:22 GMT Received: from khsieh-linux1.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 15.2.986.36; Tue, 27 Dec 2022 09:45:22 -0800 From: Kuogee Hsieh To: , , , , , , , , , , , , , , CC: Kuogee Hsieh , , , , , Subject: [PATCH v16 2/5] dt-bindings: msm/dp: add data-lanes and link-frequencies property Date: Tue, 27 Dec 2022 09:45:00 -0800 Message-ID: <1672163103-31254-3-git-send-email-quic_khsieh@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1672163103-31254-1-git-send-email-quic_khsieh@quicinc.com> References: <1672163103-31254-1-git-send-email-quic_khsieh@quicinc.com> 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-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: auS4GzqlNsXhwj-RmxBdjOTywPhDLa7X X-Proofpoint-ORIG-GUID: auS4GzqlNsXhwj-RmxBdjOTywPhDLa7X X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-12-27_13,2022-12-27_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 mlxlogscore=999 phishscore=0 priorityscore=1501 mlxscore=0 suspectscore=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 adultscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2212270146 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org To increase the flexibility of supporting different DP main link configuration at different platform, add both data-lanes and link-frequencies property into endpoint so that different platform can specify its own main link combination of both data lanes and max supported link rate. Changes in v7: -- split yaml out of dtsi patch -- link-frequencies from link rate to symbol rate -- deprecation of old data-lanes property Changes in v8: -- correct Bjorn mail address to kernel.org Changes in v10: -- add menu item to data-lanes and link-frequecnis Changes in v11: -- add endpoint property at port@1 Changes in v12: -- use enum for item at data-lanes and link-frequencies Changes in v13: -- revised changes at port@0 -- use correct ref schemas for both port@0 and port@1 -- mark both port@0 and port@1 are required -- add line between data-lanes and link-frequencies properties Changes in v14: -- add "unevaluatedProperties: false: to endpoint at port@1 -- remove unnecessary quote to $ref -- re store "$ref: /schemas/graph.yaml#/properties/port" to port@0 Changes in v15: -- re store desciption of port@0 Signed-off-by: Kuogee Hsieh Reviewed-by: Rob Herring --- .../bindings/display/msm/dp-controller.yaml | 25 +++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml index f2515af..774ccb5 100644 --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml @@ -81,6 +81,7 @@ properties: data-lanes: $ref: /schemas/types.yaml#/definitions/uint32-array + deprecated: true minItems: 1 maxItems: 4 items: @@ -102,8 +103,28 @@ properties: description: Input endpoint of the controller port@1: - $ref: /schemas/graph.yaml#/properties/port + $ref: /schemas/graph.yaml#/$defs/port-base description: Output endpoint of the controller + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + properties: + data-lanes: + minItems: 1 + maxItems: 4 + items: + enum: [ 0, 1, 2, 3 ] + + link-frequencies: + minItems: 1 + maxItems: 4 + items: + enum: [ 1620000000, 2700000000, 5400000000, 8100000000 ] + + required: + - port@0 + - port@1 required: - compatible @@ -193,6 +214,8 @@ examples: reg = <1>; endpoint { remote-endpoint = <&typec>; + data-lanes = <0 1>; + link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>; }; }; }; From patchwork Tue Dec 27 17:45:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuogee Hsieh X-Patchwork-Id: 637383 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC58BC4708E for ; Tue, 27 Dec 2022 17:45:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232177AbiL0Rpv (ORCPT ); Tue, 27 Dec 2022 12:45:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48814 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232035AbiL0Rpo (ORCPT ); Tue, 27 Dec 2022 12:45:44 -0500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 11A76E1; 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Tue, 27 Dec 2022 17:45:25 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 2BRHjO9a008805 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Dec 2022 17:45:24 GMT Received: from khsieh-linux1.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 15.2.986.36; Tue, 27 Dec 2022 09:45:23 -0800 From: Kuogee Hsieh To: , , , , , , , , , , , , , , CC: Kuogee Hsieh , , , , , Subject: [PATCH v16 3/5] drm/msm/dp: parse data-lanes as property of dp_out endpoint Date: Tue, 27 Dec 2022 09:45:01 -0800 Message-ID: <1672163103-31254-4-git-send-email-quic_khsieh@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1672163103-31254-1-git-send-email-quic_khsieh@quicinc.com> References: <1672163103-31254-1-git-send-email-quic_khsieh@quicinc.com> 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-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: VueLkQQJT5to-Lc_h8Gk9pYIfetjxCJL X-Proofpoint-ORIG-GUID: VueLkQQJT5to-Lc_h8Gk9pYIfetjxCJL X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-12-27_13,2022-12-27_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 priorityscore=1501 adultscore=0 mlxlogscore=999 suspectscore=0 bulkscore=0 impostorscore=0 clxscore=1015 mlxscore=0 spamscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2212270146 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add capability to parser data-lanes as property of dp_out endpoint. Also retain the original capability to parser data-lanes as property of mdss_dp node to handle legacy case. Changes in v6: -- first patch after split parser patch into two Changes in v7: -- check "data-lanes" from endpoint first Changes in v14: -- replace "parser" with "parse" at commit subject -- add matching brackets at dp_parser_misc() Changes in v15: -- concise dp_parser_misc() Signed-off-by: Kuogee Hsieh Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/dp/dp_parser.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/msm/dp/dp_parser.c b/drivers/gpu/drm/msm/dp/dp_parser.c index dd73221..e3ba322 100644 --- a/drivers/gpu/drm/msm/dp/dp_parser.c +++ b/drivers/gpu/drm/msm/dp/dp_parser.c @@ -94,16 +94,22 @@ static int dp_parser_ctrl_res(struct dp_parser *parser) static int dp_parser_misc(struct dp_parser *parser) { struct device_node *of_node = parser->pdev->dev.of_node; - int len; - - len = drm_of_get_data_lanes_count(of_node, 1, DP_MAX_NUM_DP_LANES); - if (len < 0) { - DRM_WARN("Invalid property \"data-lanes\", default max DP lanes = %d\n", - DP_MAX_NUM_DP_LANES); - len = DP_MAX_NUM_DP_LANES; + int cnt; + + /* + * data-lanes is the property of dp_out endpoint + */ + cnt = drm_of_get_data_lanes_count_ep(of_node, 1, 0, 1, DP_MAX_NUM_DP_LANES); + if (cnt < 0) { + /* legacy code, data-lanes is the property of mdss_dp node */ + cnt = drm_of_get_data_lanes_count(of_node, 1, DP_MAX_NUM_DP_LANES); } - parser->max_dp_lanes = len; + if (cnt > 0) + parser->max_dp_lanes = cnt; + else + parser->max_dp_lanes = DP_MAX_NUM_DP_LANES; /* 4 lanes */ + return 0; } From patchwork Tue Dec 27 17:45:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuogee Hsieh X-Patchwork-Id: 637382 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7027BC46467 for ; Tue, 27 Dec 2022 17:46:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232029AbiL0Rpx (ORCPT ); Tue, 27 Dec 2022 12:45:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231923AbiL0Rpp (ORCPT ); Tue, 27 Dec 2022 12:45:45 -0500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 363F01B1; Tue, 27 Dec 2022 09:45:41 -0800 (PST) Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2BRFk2Um029659; Tue, 27 Dec 2022 17:45:27 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=2oEu5kV5NSvp+e6NqVD0jrxmHSZkM/q7dHGy8yztSLw=; b=WpOcbN+L9wSbb+HJ4b+z0Uw+cv2D3Kk5ZHDLfvk+WirJ27FCB+/jGClGFQHrW0gxjosG ZudBQioGk3IqswLRYvK1O9wSKcd8PiphDRwM8ky3y7eCQyo7JkR7tuKkf7uyAC3dL8nU 0ONJSxaRJO0KeFTfUcOMidHZc9fdwhM359voyjfPT0ss91DBKih/PBxQF/VGL85YnOzg JuPHJcwwi+GRc1TO5acVRMf3l6tRBDQNOaWVTAGnDUdnOgkNr5F+X9HFLhEVyptCQL3u 71+6xXXiO10dWpDeYArNK+hA8h4xWVLXIGIviDGXC4xyLLvJG9lpMKV1d/PcWKUmn/WS sA== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3mntkvd4ww-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Dec 2022 17:45:27 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 2BRHjQAF015821 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Dec 2022 17:45:26 GMT Received: from khsieh-linux1.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 15.2.986.36; Tue, 27 Dec 2022 09:45:25 -0800 From: Kuogee Hsieh To: , , , , , , , , , , , , , , CC: Kuogee Hsieh , , , , , Subject: [PATCH v16 4/5] Add capability to parser and retrieve max DP link supported rate from link-frequencies property of dp_out endpoint. Date: Tue, 27 Dec 2022 09:45:02 -0800 Message-ID: <1672163103-31254-5-git-send-email-quic_khsieh@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1672163103-31254-1-git-send-email-quic_khsieh@quicinc.com> References: <1672163103-31254-1-git-send-email-quic_khsieh@quicinc.com> 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-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: l7pxGvaW6ntPCl7_bV1LO2uRNJLN8O9O X-Proofpoint-ORIG-GUID: l7pxGvaW6ntPCl7_bV1LO2uRNJLN8O9O X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-12-27_13,2022-12-27_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 priorityscore=1501 adultscore=0 mlxlogscore=999 suspectscore=0 bulkscore=0 impostorscore=0 clxscore=1015 mlxscore=0 spamscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2212270146 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Changes in v6: -- second patch after split parser patch into two patches Changes in v7: -- without checking cnt against DP_MAX_NUM_DP_LANES to retrieve link rate Changes in v9: -- separate parser link-frequencies out of data-lanes Changes in v10: -- add dp_parser_link_frequencies() Changes in v11: -- return 0 if(!endpoint) Changes in v12: -- replace khz with kbytes at dp_parser.h Changes in v14: -- replace "parser" with "parse" at commit subject -- use do_div() for 64 bits division Signed-off-by: Kuogee Hsieh Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/dp/dp_parser.c | 28 ++++++++++++++++++++++++++++ drivers/gpu/drm/msm/dp/dp_parser.h | 2 ++ 2 files changed, 30 insertions(+) diff --git a/drivers/gpu/drm/msm/dp/dp_parser.c b/drivers/gpu/drm/msm/dp/dp_parser.c index e3ba322..42c0793 100644 --- a/drivers/gpu/drm/msm/dp/dp_parser.c +++ b/drivers/gpu/drm/msm/dp/dp_parser.c @@ -91,6 +91,30 @@ static int dp_parser_ctrl_res(struct dp_parser *parser) return 0; } +static u32 dp_parser_link_frequencies(struct device_node *of_node) +{ + struct device_node *endpoint; + u64 frequency = 0; + int cnt; + + endpoint = of_graph_get_endpoint_by_regs(of_node, 1, 0); /* port@1 */ + if (!endpoint) + return 0; + + cnt = of_property_count_u64_elems(endpoint, "link-frequencies"); + + if (cnt > 0) + of_property_read_u64_index(endpoint, "link-frequencies", + cnt - 1, &frequency); + of_node_put(endpoint); + + do_div(frequency, + 10 * /* from symbol rate to link rate */ + 1000); /* kbytes */ + + return frequency; +} + static int dp_parser_misc(struct dp_parser *parser) { struct device_node *of_node = parser->pdev->dev.of_node; @@ -110,6 +134,10 @@ static int dp_parser_misc(struct dp_parser *parser) else parser->max_dp_lanes = DP_MAX_NUM_DP_LANES; /* 4 lanes */ + parser->max_dp_link_rate = dp_parser_link_frequencies(of_node); + if (!parser->max_dp_link_rate) + parser->max_dp_link_rate = DP_LINK_RATE_HBR2; + return 0; } diff --git a/drivers/gpu/drm/msm/dp/dp_parser.h b/drivers/gpu/drm/msm/dp/dp_parser.h index 866c1a8..526131ee 100644 --- a/drivers/gpu/drm/msm/dp/dp_parser.h +++ b/drivers/gpu/drm/msm/dp/dp_parser.h @@ -15,6 +15,7 @@ #define DP_LABEL "MDSS DP DISPLAY" #define DP_MAX_PIXEL_CLK_KHZ 675000 #define DP_MAX_NUM_DP_LANES 4 +#define DP_LINK_RATE_HBR2 540000 /* kbytes */ enum dp_pm_type { DP_CORE_PM, @@ -119,6 +120,7 @@ struct dp_parser { struct dp_io io; struct dp_display_data disp_data; u32 max_dp_lanes; + u32 max_dp_link_rate; struct drm_bridge *next_bridge; int (*parse)(struct dp_parser *parser); From patchwork Tue Dec 27 17:45:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuogee Hsieh X-Patchwork-Id: 637093 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B8ACCC4708E for ; Tue, 27 Dec 2022 17:46:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229987AbiL0RqW (ORCPT ); Tue, 27 Dec 2022 12:46:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48762 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232086AbiL0Rpr (ORCPT ); Tue, 27 Dec 2022 12:45:47 -0500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DC537D45; 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Tue, 27 Dec 2022 17:45:29 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 2BRHjSEZ008820 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Dec 2022 17:45:28 GMT Received: from khsieh-linux1.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 15.2.986.36; Tue, 27 Dec 2022 09:45:27 -0800 From: Kuogee Hsieh To: , , , , , , , , , , , , , , CC: Kuogee Hsieh , , , , , Subject: [PATCH v16 5/5] drm/msm/dp: add support of max dp link rate Date: Tue, 27 Dec 2022 09:45:03 -0800 Message-ID: <1672163103-31254-6-git-send-email-quic_khsieh@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1672163103-31254-1-git-send-email-quic_khsieh@quicinc.com> References: <1672163103-31254-1-git-send-email-quic_khsieh@quicinc.com> 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-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: _vHwEC8DoreHEPlJuWft3X5gkdeHYPgp X-Proofpoint-ORIG-GUID: _vHwEC8DoreHEPlJuWft3X5gkdeHYPgp X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-12-27_13,2022-12-27_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 adultscore=0 impostorscore=0 clxscore=1015 priorityscore=1501 malwarescore=0 mlxlogscore=999 bulkscore=0 lowpriorityscore=0 mlxscore=0 spamscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2212270146 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org By default, HBR2 (5.4G) is the max link rate be supported. This patch uses the actual limit specified by DT and removes the artificial limitation to 5.4 Gbps. Supporting HBR3 is a consequence of that. Changes in v2: -- add max link rate from dtsi Changes in v3: -- parser max_data_lanes and max_dp_link_rate from dp_out endpoint Changes in v4: -- delete unnecessary pr_err Changes in v5: -- split parser function into different patch Changes in v9: -- revised commit test Changes in v13: -- repalced "properity" with "property" Signed-off-by: Kuogee Hsieh Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/dp/dp_display.c | 4 ++++ drivers/gpu/drm/msm/dp/dp_panel.c | 7 ++++--- drivers/gpu/drm/msm/dp/dp_panel.h | 1 + 3 files changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index bfd0aef..edee550 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -390,6 +390,10 @@ static int dp_display_process_hpd_high(struct dp_display_private *dp) struct edid *edid; dp->panel->max_dp_lanes = dp->parser->max_dp_lanes; + dp->panel->max_dp_link_rate = dp->parser->max_dp_link_rate; + + drm_dbg_dp(dp->drm_dev, "max_lanes=%d max_link_rate=%d\n", + dp->panel->max_dp_lanes, dp->panel->max_dp_link_rate); rc = dp_panel_read_sink_caps(dp->panel, dp->dp_display.connector); if (rc) diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c index 5149ceb..1800d89 100644 --- a/drivers/gpu/drm/msm/dp/dp_panel.c +++ b/drivers/gpu/drm/msm/dp/dp_panel.c @@ -75,12 +75,13 @@ static int dp_panel_read_dpcd(struct dp_panel *dp_panel) link_info->rate = drm_dp_bw_code_to_link_rate(dpcd[DP_MAX_LINK_RATE]); link_info->num_lanes = dpcd[DP_MAX_LANE_COUNT] & DP_MAX_LANE_COUNT_MASK; + /* Limit data lanes from data-lanes of endpoint property of dtsi */ if (link_info->num_lanes > dp_panel->max_dp_lanes) link_info->num_lanes = dp_panel->max_dp_lanes; - /* Limit support upto HBR2 until HBR3 support is added */ - if (link_info->rate >= (drm_dp_bw_code_to_link_rate(DP_LINK_BW_5_4))) - link_info->rate = drm_dp_bw_code_to_link_rate(DP_LINK_BW_5_4); + /* Limit link rate from link-frequencies of endpoint property of dtsi */ + if (link_info->rate > dp_panel->max_dp_link_rate) + link_info->rate = dp_panel->max_dp_link_rate; drm_dbg_dp(panel->drm_dev, "version: %d.%d\n", major, minor); drm_dbg_dp(panel->drm_dev, "link_rate=%d\n", link_info->rate); diff --git a/drivers/gpu/drm/msm/dp/dp_panel.h b/drivers/gpu/drm/msm/dp/dp_panel.h index d861197a..f04d021 100644 --- a/drivers/gpu/drm/msm/dp/dp_panel.h +++ b/drivers/gpu/drm/msm/dp/dp_panel.h @@ -50,6 +50,7 @@ struct dp_panel { u32 vic; u32 max_dp_lanes; + u32 max_dp_link_rate; u32 max_bw_code; };