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Add DP tx lane0, lane1 swing register setting array, and audio enable flag. The device which cannot pass DP tx PHY CTS caused by long PCB trace or embedded MUX, adjusting ANX7625 PHY parameters can pass the CTS test. The adjusting type include Pre-emphasis, Vp-p, Rterm(Resistor Termination) and Rsel(Driven Strength). Each lane has maximum 20 registers for these settings. Signed-off-by: Xin Ji Reviewed-by: Rob Herring --- .../display/bridge/analogix,anx7625.yaml | 65 ++++++++++++++++++- 1 file changed, 63 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml index ab48ab2f4240..1d3e88daca04 100644 --- a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml +++ b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml @@ -43,14 +43,70 @@ properties: vdd33-supply: description: Regulator that provides the supply 3.3V power. + analogix,lane0-swing: + $ref: /schemas/types.yaml#/definitions/uint8-array + minItems: 1 + maxItems: 20 + description: + an array of swing register setting for DP tx lane0 PHY. + Registers 0~9 are Swing0_Pre0, Swing1_Pre0, Swing2_Pre0, + Swing3_Pre0, Swing0_Pre1, Swing1_Pre1, Swing2_Pre1, Swing0_Pre2, + Swing1_Pre2, Swing0_Pre3, they are for [Boost control] and + [Swing control] setting. + Registers 0~9, bit 3:0 is [Boost control], these bits control + post cursor manual, increase the [Boost control] to increase + Pre-emphasis value. + Registers 0~9, bit 6:4 is [Swing control], these bits control + swing manual, increase [Swing control] setting to add Vp-p value + for each Swing, Pre. + Registers 10~19 are Swing0_Pre0, Swing1_Pre0, Swing2_Pre0, + Swing3_Pre0, Swing0_Pre1, Swing1_Pre1, Swing2_Pre1, Swing0_Pre2, + Swing1_Pre2, Swing0_Pre3, they are for [R select control] and + [R Termination control] setting. + Registers 10~19, bit 4:0 is [R select control], these bits are + compensation manual, increase it can enhance IO driven strength + and Vp-p. + Registers 10~19, bit 5:6 is [R termination control], these bits + adjust 50ohm impedance of DP tx termination. 00:55 ohm, + 01:50 ohm(default), 10:45 ohm, 11:40 ohm. + + analogix,lane1-swing: + $ref: /schemas/types.yaml#/definitions/uint8-array + minItems: 1 + maxItems: 20 + description: + an array of swing register setting for DP tx lane1 PHY. + DP TX lane1 swing register setting same with lane0 + swing, please refer lane0-swing property description. + + analogix,audio-enable: + type: boolean + description: let the driver enable audio HDMI codec function or not. + ports: $ref: /schemas/graph.yaml#/properties/ports properties: port@0: - $ref: /schemas/graph.yaml#/properties/port + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false description: - Video port for MIPI DSI input. + MIPI DSI/DPI input. + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + type: object + additionalProperties: false + + properties: + remote-endpoint: true + + bus-type: + enum: [1, 5] + default: 1 + + data-lanes: true port@1: $ref: /schemas/graph.yaml#/properties/port @@ -87,6 +143,9 @@ examples: vdd10-supply = <&pp1000_mipibrdg>; vdd18-supply = <&pp1800_mipibrdg>; vdd33-supply = <&pp3300_mipibrdg>; + analogix,audio-enable; + analogix,lane0-swing = /bits/ 8 <0x14 0x54 0x64 0x74>; + analogix,lane1-swing = /bits/ 8 <0x14 0x54 0x64 0x74>; ports { #address-cells = <1>; @@ -96,6 +155,8 @@ examples: reg = <0>; anx7625_in: endpoint { remote-endpoint = <&mipi_dsi>; + bus-type = <5>; + data-lanes = <0 1 2 3>; }; }; From patchwork Mon Oct 18 03:04:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xin Ji X-Patchwork-Id: 12564905 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 C996AC433EF for ; Mon, 18 Oct 2021 03:04:17 +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 7D23160F8F for ; 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Reviewed-by: Robert Foss Signed-off-by: Xin Ji --- drivers/gpu/drm/bridge/analogix/anx7625.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 1a871f6b6822..469037f2fd3d 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -191,10 +191,10 @@ static int wait_aux_op_finish(struct anx7625_data *ctx) AP_AUX_CTRL_STATUS); if (val < 0 || (val & 0x0F)) { DRM_DEV_ERROR(dev, "aux status %02x\n", val); - val = -EIO; + return -EIO; } - return val; + return 0; } static int anx7625_video_mute_control(struct anx7625_data *ctx, From patchwork Mon Oct 18 03:04:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xin Ji X-Patchwork-Id: 12564907 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 31141C433F5 for ; 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Mon, 18 Oct 2021 03:04:30 +0000 Received: from BY5PR04MB6739.namprd04.prod.outlook.com ([fe80::e149:c2d4:fd23:a682]) by BY5PR04MB6739.namprd04.prod.outlook.com ([fe80::e149:c2d4:fd23:a682%7]) with mapi id 15.20.4608.018; Mon, 18 Oct 2021 03:04:30 +0000 From: Xin Ji To: xji@analogixsemi.com Cc: Laurent.pinchart@ideasonboard.com, a.hajda@samsung.com, airlied@linux.ie, anarsoul@gmail.com, bliang@analogixsemi.com, boris.brezillon@collabora.com, dan.carpenter@oracle.com, daniel@ffwll.ch, devel@driverdev.osuosl.org, dri-devel@lists.freedesktop.org, drinkcat@google.com, duwe@lst.de, hsinyi@chromium.org, jonas@kwiboo.se, linux-kernel@vger.kernel.org, m.szyprowski@samsung.com, narmstrong@baylibre.com, robert.foss@linaro.org, sam@ravnborg.org, span@analogixsemi.com, zhenli@analogixsemi.com Subject: [PATCH v11 3/4] drm/bridge: anx7625: add MIPI DPI input feature Date: Mon, 18 Oct 2021 11:04:22 +0800 Message-Id: <20211018030422.2055208-1-xji@analogixsemi.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <5aad2d99649549bfacf1a6a4587cae12de197879.1628161369.git.xji@analogixsemi.com> References: <5aad2d99649549bfacf1a6a4587cae12de197879.1628161369.git.xji@analogixsemi.com> X-ClientProxiedBy: HK2PR02CA0153.apcprd02.prod.outlook.com (2603:1096:201:1f::13) To BY5PR04MB6739.namprd04.prod.outlook.com (2603:10b6:a03:229::8) MIME-Version: 1.0 Received: from anxtwsw-Precision-3640-Tower (60.251.58.79) by HK2PR02CA0153.apcprd02.prod.outlook.com (2603:1096:201:1f::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4608.15 via Frontend Transport; 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This patch add MIPI DPI rx input configuration support, after apply this patch, the driver can support DSI rx or DPI rx by adding 'bus-type' in DT. Reviewed-by: Robert Foss Signed-off-by: Xin Ji --- drivers/gpu/drm/bridge/analogix/anx7625.c | 246 ++++++++++++++++------ drivers/gpu/drm/bridge/analogix/anx7625.h | 18 +- 2 files changed, 204 insertions(+), 60 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 469037f2fd3d..92038c4661ff 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -32,6 +32,7 @@ #include #include +#include #include