From patchwork Tue Dec 10 09:18:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrej Picej X-Patchwork-Id: 13901058 Received: from cpanel.siel.si (cpanel.siel.si [46.19.9.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8032E2309A2 for ; Tue, 10 Dec 2024 09:21:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.19.9.99 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733822474; cv=none; b=JPgjJcUIjV+5V5cmOETFg5bF7JuAownIhzvSCNEX94t4ZhDOmwcN1niBc4geUL+lrj5Lru7faYg2H3GWQqjmAlXthTq6j57Y8PAMMvzQnLv2UcntTIwCXhLZ9s9Mz4CLrmB53wQoD2kHeVvUgUJV44eUDfnvzv87xIaJM4WKaSw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733822474; c=relaxed/simple; bh=fOev1Y8BKB0FulfbIogwUx6WfrGatBVUBVtvVDp+04s=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=e5/SZKO5G8cTHmSUf9P5KoAayHG9rzmg78EptQ3a/xOKoMzbOiAhOS2G4Chusw8JVJR4kBtKRa35lnn6TPqvt3zU9I2a5y9k1t0cKEXxkviyWp6deQxwqIm1BC14rLtzEjxXceheqccfKfuJ+2vptyKV/lHQY3655a9UlL/xWQA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=norik.com; spf=pass smtp.mailfrom=norik.com; dkim=pass (2048-bit key) header.d=norik.com header.i=@norik.com header.b=pba+gmG0; arc=none smtp.client-ip=46.19.9.99 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=norik.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=norik.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=norik.com header.i=@norik.com header.b="pba+gmG0" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=norik.com; s=default; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=Lj/s8jikWSL6aISEsHq6B0p2FlUzsQ0RtdLirGZ/Elo=; b=pba+gmG0oSVE71SGtAPQVYGW+U tEtJfiI4ohYZuiPQLohtM+YwE+5m4msuBKYuJynxGMh0Z+CYe8eBT5+0RmEMbVxsjPMKGVvdc4tTt CGLxBpCww9qwjNEppj10LZzLVBQrI10asnCmtgBGaodPmRCVWbIZiP9u1O9iM4doebC75fVp/ato3 Jt38YXpUCx4QaMiP1nuvYexgb6tAQGMNWat1aCUJCAai5/UpB59sbSM10++aF92nGewJjM3/biqyV b7FrKXsmtmkyjsNjW8aRgctbrn/pFTiRDCopgyj/vvO5X2fPj/q340pUzwj0Imvc0kBP4Iq/HYI56 AtngMHnw==; Received: from [89.212.21.243] (port=59230 helo=and-HP-Z4..) by cpanel.siel.si with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96.2) (envelope-from ) id 1tKwQT-001jvW-29; Tue, 10 Dec 2024 10:21:05 +0100 From: Andrej Picej To: andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org, Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@gmail.com, airlied@gmail.com, simona@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, marex@denx.de Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, upstream@lists.phytec.de Subject: [PATCH v5 1/3] dt-bindings: drm/bridge: ti-sn65dsi83: Add properties for ti,lvds-vod-swing Date: Tue, 10 Dec 2024 10:18:59 +0100 Message-Id: <20241210091901.83028-2-andrej.picej@norik.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241210091901.83028-1-andrej.picej@norik.com> References: <20241210091901.83028-1-andrej.picej@norik.com> Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cpanel.siel.si X-AntiAbuse: Original Domain - lists.linux.dev X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - norik.com X-Get-Message-Sender-Via: cpanel.siel.si: authenticated_id: andrej.picej@norik.com X-Authenticated-Sender: cpanel.siel.si: andrej.picej@norik.com X-Source: X-Source-Args: X-Source-Dir: Add properties which can be used to specify LVDS differential output voltage. Since this also depends on near-end signal termination also include property which sets this. LVDS differential output voltage is specified with an array (min, max), which should match the one from connected device. Signed-off-by: Andrej Picej Reviewed-by: Krzysztof Kozlowski --- Changes in v5: - added Krzysztof's reviewed-by tag Changes in v4: - removed "additionalProperties: true" from the patch as it is not needed Changes in v3: - no change Changes in v2: - move LVDS port schema to a $defs and reference it from there - properties are now defined in microvolts/ohms - use 1 property for data-lane and 1 for clock-lane LVDS voltage swing - add 1 property which sets LVDS near-end termination - since major change was done change the authorship to myself --- .../bindings/display/bridge/ti,sn65dsi83.yaml | 34 +++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml index 48a97bb3e2e0..bad6f5c81b06 100644 --- a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml +++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml @@ -80,12 +80,12 @@ properties: - const: 4 port@2: - $ref: /schemas/graph.yaml#/properties/port description: Video port for LVDS Channel-A output (panel or bridge). + $ref: '#/$defs/lvds-port' port@3: - $ref: /schemas/graph.yaml#/properties/port description: Video port for LVDS Channel-B output (panel or bridge). + $ref: '#/$defs/lvds-port' required: - port@0 @@ -96,6 +96,36 @@ required: - reg - ports +$defs: + lvds-port: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + + properties: + ti,lvds-termination-ohms: + description: The value of near end differential termination in ohms. + enum: [100, 200] + default: 200 + + ti,lvds-vod-swing-clock-microvolt: + description: LVDS diferential output voltage for clock + lanes in microvolts. + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 2 + maxItems: 2 + + ti,lvds-vod-swing-data-microvolt: + description: LVDS diferential output voltage for data + lanes in microvolts. + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 2 + maxItems: 2 + allOf: - if: properties: