From patchwork Thu Sep 30 09:58:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Pali_Roh=C3=A1r?= X-Patchwork-Id: 12527835 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 62804C433F5 for ; Thu, 30 Sep 2021 10:02:55 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 255D7617E6 for ; Thu, 30 Sep 2021 10:02:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 255D7617E6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ztdzO/j51ybHL0GaRgJ6UjTGXVO9wBPcSO3WC9bZznQ=; b=OJNHkwM1LqVSrU ZoW5vYp4LtiJCDU0BIRihXiNpWkHszPzOwD9Ut1qLualYzspRXF3zGZf6zDdxKKaHee4Eb5/Cde43 zcpSz8NZ1YbkwbwcFp1Uvo0nQK6nfKVkyi6X0yQkMrl6FZU4htaRnProcNAEphZOtbeWEHmvOYe4x v75H11NS0jTKW7eZTR2Cdl4zCTmS8YTIatjjCsLX17hIyIFUKX6hYgA42HaqnTBZgnabNlhJjE+Or MAcypDrLC42xcc3cWzm8JgsHPS/LmtBY5OfsZNxtSqlsiZhkxdO//h2Mr7uD0Qm7ldnLe0Us7hdTh uRCMzH3xLEEXx2XpisNA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mVsr1-00DgTi-A9; Thu, 30 Sep 2021 09:59:51 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mVsqH-00DgIV-JY for linux-arm-kernel@lists.infradead.org; Thu, 30 Sep 2021 09:59:09 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 229CE61882; Thu, 30 Sep 2021 09:59:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1632995945; bh=NHJBEDETpANIrgHSRJleNxObvssqlufzbMGZPXguFq0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iYZaECC+Le1M7pmz9o0J5cwv4WYXGJvGz1Y2bZL8Hlt9ql23Mu6jxy/QIHWj3CPjz tauq0OXPw0/DVD3DQNUg5fFhj2Q1lk1L/GAeV5VbMC4V7uplOuTfFtlmn3LmmyoLjf LGYIdFoP6EIuvnC7B/XlfFAUAr6zRw6Gddsd7/8ayWj6nabRT2CI8QFKwMGBv//kPD YExiwoFQOQ/O2JFhfAMMkj748bhWubraE+YIyg6iQ8qFYgXSj+0i8/qK+r+7Nfns7t 7c12bWcMTQUDbwjQHfVo3DLzl+PXClMvGsywL9fK3dqLyG72hkTP6m1f+O30gOZ0p4 uHwQkMdSPAYlA== Received: by pali.im (Postfix) id D814CE79; Thu, 30 Sep 2021 11:59:04 +0200 (CEST) From: =?utf-8?q?Pali_Roh=C3=A1r?= To: Michael Turquette , Stephen Boyd , Rob Herring , Greg Kroah-Hartman Cc: Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Vladimir Vid , =?utf-8?q?Marek_Beh=C3=BAn?= , linux-clk@vger.kernel.org, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Subject: [PATCH v7 3/6] dt-bindings: mvebu-uart: document DT bindings for marvell, armada-3700-uart-clock Date: Thu, 30 Sep 2021 11:58:35 +0200 Message-Id: <20210930095838.28145-4-pali@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210930095838.28145-1-pali@kernel.org> References: <20210930095838.28145-1-pali@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210930_025905_718032_B0CA9567 X-CRM114-Status: GOOD ( 14.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This change adds DT bindings documentation for device nodes with compatible string "marvell,armada-3700-uart-clock". Signed-off-by: Pali Rohár Reviewed-by: Rob Herring --- Changes in v7 * Fix errors Changes in v6 * Fix license * Rename node to clock-controller@12010 * Remove maxItems --- .../clock/marvell,armada-3700-uart-clock.yaml | 59 +++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/marvell,armada-3700-uart-clock.yaml diff --git a/Documentation/devicetree/bindings/clock/marvell,armada-3700-uart-clock.yaml b/Documentation/devicetree/bindings/clock/marvell,armada-3700-uart-clock.yaml new file mode 100644 index 000000000000..175f5c8f2bc5 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/marvell,armada-3700-uart-clock.yaml @@ -0,0 +1,59 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/marvell,armada-3700-uart-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# +title: Marvell Armada 3720 UART clocks + +maintainers: + - Pali Rohár + +properties: + compatible: + const: marvell,armada-3700-uart-clock + + reg: + items: + - description: UART Clock Control Register + - description: UART 2 Baud Rate Divisor Register + + clocks: + description: | + List of parent clocks suitable for UART from following set: + "TBG-A-P", "TBG-B-P", "TBG-A-S", "TBG-B-S", "xtal" + UART clock can use one from this set and when more are provided + then kernel would choose and configure the most suitable one. + It is suggest to specify at least one TBG clock to achieve + baudrates above 230400 and also to specify clock which bootloader + used for UART (most probably xtal) for smooth boot log on UART. + + clock-names: + items: + - const: TBG-A-P + - const: TBG-B-P + - const: TBG-A-S + - const: TBG-B-S + - const: xtal + minItems: 1 + + '#clock-cells': + const: 1 + +required: + - compatible + - reg + - clocks + - clock-names + - '#clock-cells' + +additionalProperties: false + +examples: + - | + uartclk: clock-controller@12010 { + compatible = "marvell,armada-3700-uart-clock"; + reg = <0x12010 0x4>, <0x12210 0x4>; + clocks = <&tbg 0>, <&tbg 1>, <&tbg 2>, <&tbg 3>, <&xtalclk>; + clock-names = "TBG-A-P", "TBG-B-P", "TBG-A-S", "TBG-B-S", "xtal"; + #clock-cells = <1>; + };