From patchwork Sun May 28 13:27:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adam Ford X-Patchwork-Id: 13257826 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 4586FC77B7C for ; Sun, 28 May 2023 13:27:40 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5FCFE10E1FF; Sun, 28 May 2023 13:27:38 +0000 (UTC) Received: from mail-io1-xd33.google.com (mail-io1-xd33.google.com [IPv6:2607:f8b0:4864:20::d33]) by gabe.freedesktop.org (Postfix) with ESMTPS id 364D810E0CE for ; Sun, 28 May 2023 13:27:36 +0000 (UTC) Received: by mail-io1-xd33.google.com with SMTP id ca18e2360f4ac-7749357e71cso70938839f.3 for ; Sun, 28 May 2023 06:27:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1685280454; x=1687872454; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=gEM2GqZ8OMei7ENhUmT/X40pgKCW19D6Zd4VJ4P8qcU=; b=R8luGRAIhXl4kxrGq9klpfmLL7HVLRAa/SX6uXo7qUjSDp7ljH+HmXvDrigp26fNNM Y1aTHI+PZx2p2Y6myKaWvQRpZcrF2mGS4i4/bb4OmmnpOnSY3Rftf+wSgzXYhru/szBg WvZzyyrNjl3vPc0MtvSM5T4SFZP1r/c5DmrXaf8TdKbEbVZViNXrhHovdRLvewa8UJru LbnHdaF1hxw9yFfg8R/uvFGhiSJD12OEvb3TRpjCO870OWsEA8TuSmZU2yOjd9OVKvjc hl68D8s0r5CMmMqZt2m+xUJbwMuhiq05UkyozbAaTmCldXLdExAGThSaDnRRSAcRnfny HLUA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685280454; x=1687872454; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=gEM2GqZ8OMei7ENhUmT/X40pgKCW19D6Zd4VJ4P8qcU=; b=V7vLDYRXau+qEAPvSYYMfI6rk1hu6neVws74znYXxmgAg0FyJpHXBszIiO9ESe7ADo bZHCxRRGTajOMV9ScARUR1a2igdy5ISylbr6DAVs8czWUxSQ1ZFim5FabhUWdEkE/KoP vFBTPo/KnXTh9Bz9RRNB6qXAhYkOMM2ZVNtwjf1uhxm3Nnnf5XWOhqOPqBZQzGuGyqE3 J1G9jzVOYaOkereVnrYS5zD+36IwU1XzTEzUlAm34IIkHo8ltc1uXncOnG9aCqFlZ8PY 1/bAsqCDH1HPWUdXsC+c1g1FYwM32DCrWqnaOp+lLUlpeViOuapzFczWi7+EaSphM3IC PkfQ== X-Gm-Message-State: AC+VfDzXE68t7xZSEfAWjfeK/5LqMxrG8DGGh6whCWL29TOUUUYiADB9 zFp9iefwbq4zMytTpioVmhlH7YQj174Jag== X-Google-Smtp-Source: ACHHUZ6GtMr4xqSpqmFvjtAU90VfNw84Yg1PZzFC6bTY+R7QA/BmfifhSOuJ0y13BfpDPWumnufYdQ== X-Received: by 2002:a6b:dd02:0:b0:76c:4ca6:34d7 with SMTP id f2-20020a6bdd02000000b0076c4ca634d7mr5679747ioc.19.1685280454476; Sun, 28 May 2023 06:27:34 -0700 (PDT) Received: from aford-B741.lan ([2601:447:d001:897f:afd6:bf52:6c04:831a]) by smtp.gmail.com with ESMTPSA id p11-20020a02290b000000b004161fafff97sm2276330jap.136.2023.05.28.06.27.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 28 May 2023 06:27:34 -0700 (PDT) From: Adam Ford To: dri-devel@lists.freedesktop.org Subject: [PATCH V2] dt-bindings: bridge: samsung-dsim: Make some flags optional Date: Sun, 28 May 2023 08:27:27 -0500 Message-Id: <20230528132727.3933-1-aford173@gmail.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 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: , Cc: Neil Armstrong , Conor Dooley , Robert Foss , Krzysztof Kozlowski , Jonas Karlman , Laurent Pinchart , aford@beaconembedded.com, Jernej Skrabec , linux-kernel@vger.kernel.org, Conor Dooley , Rob Herring , Jagan Teki , Andrzej Hajda , Adam Ford , devicetree@vger.kernel.org, Marek Szyprowski Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" In the event a device is connected to the samsung-dsim controller that doesn't support the burst-clock, the driver is able to get the requested pixel clock from the attached device or bridge. In these instances, the samsung,burst-clock-frequency isn't needed, so remove it from the required list. The pll-clock frequency can be set by the device tree entry for samsung,pll-clock-frequency, but in some cases, the pll-clock may have the same clock rate as sclk_mipi clock. If they are equal, this flag is not needed since the driver will use the sclk_mipi rate as a fallback. Signed-off-by: Adam Ford Reviewed-by: Conor Dooley Reviewed-by: Jagan Teki Reviewed-by: Fabio Estevam --- V2: Split from driver series. Re-word updates for burst and pll-clock frequency. diff --git a/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml b/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml index 9f61ebdfefa8..06b6c44d4641 100644 --- a/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml +++ b/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml @@ -70,7 +70,9 @@ properties: samsung,burst-clock-frequency: $ref: /schemas/types.yaml#/definitions/uint32 description: - DSIM high speed burst mode frequency. + DSIM high speed burst mode frequency. If absent, + the pixel clock from the attached device or bridge + will be used instead. samsung,esc-clock-frequency: $ref: /schemas/types.yaml#/definitions/uint32 @@ -80,7 +82,8 @@ properties: samsung,pll-clock-frequency: $ref: /schemas/types.yaml#/definitions/uint32 description: - DSIM oscillator clock frequency. + DSIM oscillator clock frequency. If absent, the clock frequency + of sclk_mipi will be used instead. phys: maxItems: 1 @@ -134,9 +137,7 @@ required: - compatible - interrupts - reg - - samsung,burst-clock-frequency - samsung,esc-clock-frequency - - samsung,pll-clock-frequency allOf: - $ref: ../dsi-controller.yaml#