From patchwork Sat Feb 19 15:28:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marek_Beh=C3=BAn?= X-Patchwork-Id: 12752320 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 32B24C433EF for ; Sat, 19 Feb 2022 15:30:12 +0000 (UTC) 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=aJ/nX/8ccBoehYovlnUxTdWLaoOZPXY8DfpNlzMnSqQ=; b=RXS8B+M6wVIM/z o31fCGUNoO1ZYWJVH+25po/GRMnBn9vV0ktfHGVj+YDhEPJdwopBwJN33ET4g8N6X2Q8fbBztqCFx HRjD0j+Mlo16AYk8a/PBRGA0yhbXxeVPFHztEx8zfSmnje5fraZnZYhxYabNqJj86EJA7k+HJylKP a1FTLmc/gN3a6KcOFxykdoPeo6Z5793t/r2LUjh+I2M3VjJLzQH2Jf4xNgaPgOZMXTIMzt54Zg3Fs xaVFYlgzKQd3JfBNqUWIldVhiJuEBEe2cH2e3Ecd3Rsd7uEbKkaHQnaV/LpavBbO5zPGK4k7FOGfA ac+Qa7dd6I5qkNlLP+Kw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nLRfK-00HADX-AK; Sat, 19 Feb 2022 15:28:54 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nLRew-00HA4i-Q2 for linux-arm-kernel@lists.infradead.org; Sat, 19 Feb 2022 15:28:32 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 73849B80968; Sat, 19 Feb 2022 15:28:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 58EE5C340ED; Sat, 19 Feb 2022 15:28:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645284508; bh=HGDmoqf6QAg9tN/vdrXOfeQvC01SwZv+Smf86tASPxI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZvBnYhSIlllz6RNazGt9CUMcEuI13uOn3Jn8/vtTlvmMTQMc0UDDjC57NF9MhFsNE th4D3TB4/dePZ2ArW+dwajqtIunp61kOAWPHJWVfCSjvagxlu3zD2ZpRyr6KVh8Ag6 /LvIxLfT6ReT4OUVttqMp8Ql14CxnLT+d9Bys3fbRnWkXOTrVlIPvinlvpuz2epwRN Xg7K1SQk57K033VP4DzU5iqMZV93VviGSUpcmoSLYdlRdAaU3v46tKyNlXxIBThiLZ 83boEdiyglizeBiGdP7iDzLOtu5CuyLMsRqOLstzXov0XJ9szZguvc4bgLOwvvUwxp Y/XrWJry+ZHCA== From: =?utf-8?q?Marek_Beh=C3=BAn?= To: Greg Kroah-Hartman , Stephen Boyd Cc: Gregory Clement , =?utf-8?q?Pali_Roh=C3=A1r?= , linux-clk@vger.kernel.org, linux-serial@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, =?utf-8?q?Marek_Beh=C3=BAn?= Subject: [PATCH v9 2/6] dt-bindings: mvebu-uart: document DT bindings for marvell, armada-3700-uart-clock Date: Sat, 19 Feb 2022 16:28:14 +0100 Message-Id: <20220219152818.4319-3-kabel@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220219152818.4319-1-kabel@kernel.org> References: <20220219152818.4319-1-kabel@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220219_072831_184640_A8BECD2D X-CRM114-Status: GOOD ( 15.53 ) 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 From: Pali Rohár Add DT bindings documentation for device nodes with compatible string "marvell,armada-3700-uart-clock". Signed-off-by: Pali Rohár Reviewed-by: Rob Herring Reviewed-by: Marek Behún Signed-off-by: Marek Behún Reviewed-by: Stephen Boyd --- .../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>; + };