From patchwork Mon Aug 2 14:45:27 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: 12414159 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41CE6C4338F for ; Mon, 2 Aug 2021 14:49:09 +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 0D05860F70 for ; Mon, 2 Aug 2021 14:49:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 0D05860F70 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=jeHQYhsh6h9EK6I6daM/xuj2OQ0p/T0psEXYSYdqxg0=; b=lfvI1ujJL/tN6Y 7iHox9Y+CMAbEz18TNEnkPPn8eC0Jz9I6+aEWF4XCbJaZgxuOGi/NtuKE0kLvCoHHZG9dyH08mIne +O+eh5VTALCTxdDvVEk7HeyhMb6Ia+hko0NnubiRUohMo9J6CdtrTJMn9wnFZjK/aPOqH1kIgyIs7 ePLiMb02e4EQoZmjb007KHFyKDCuyZDiG4qyWSl6Q7uIspU+sTxYBYqs5PLYvFb4b7HXCJWe2aO32 EehkqtSoPtH3dhAKVEQKfhJVzQKsDRZLlenhP8RQjzTTpbZKFeoKMqIWf9Fi+jK9r5CcBjPAUxE5i vE9KsSbeeXV3fO0ynCHw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mAZDq-00GixZ-6A; Mon, 02 Aug 2021 14:47:18 +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 1mAZCV-00GiS3-NC for linux-arm-kernel@lists.infradead.org; Mon, 02 Aug 2021 14:45:57 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 42BCA600D4; Mon, 2 Aug 2021 14:45:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1627915555; bh=Tj1KoLbRx36Cai5tD6gjvLCZPUH6QNJdzsfNne47jbM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cqcflLKvVHSnlZkDzqKpmRedA1aWckNKmZdpeF/Krkn1IyncDidFNFthXQB4QdJpk JTjuYGLM8YJ6k9Ayd4RajaYC7kN4y1e7Hh3sAdNEr+kgnuEG/LmK7OZbssrLXtjzbA GI+yJBvgZEQXWkzQxrHzAuq4AGx6m9UCn/JesfqRHG5RM29wYNT9FU4yQl4RT/eD56 pmD/tHbMDkXWtf1dbwNfFwlvA4yhaKBIMSFecODbD3Oo0TYjGMXzMCpM4mGPv+kq9A buJC4VltblrjiCtJJyvQlKYPqBiifFctDIyRNDu7Wuw0sqJycocFDMYMih5n3ewicB Zymx5O/g5oSbQ== Received: by pali.im (Postfix) id ED7EFB98; Mon, 2 Aug 2021 16:45:54 +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 Subject: [PATCH v4 4/6] dt-bindings: mvebu-uart: update information about UART clock Date: Mon, 2 Aug 2021 16:45:27 +0200 Message-Id: <20210802144529.1520-5-pali@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210802144529.1520-1-pali@kernel.org> References: <20210624224909.6350-1-pali@kernel.org> <20210802144529.1520-1-pali@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210802_074555_817364_33E4F4A6 X-CRM114-Status: GOOD ( 12.72 ) 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 Device "marvell,armada-3700-uart" should use "marvell,armada-3700-uart-clock" compatible clock. Signed-off-by: Pali Rohár --- Documentation/devicetree/bindings/serial/mvebu-uart.txt | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/serial/mvebu-uart.txt b/Documentation/devicetree/bindings/serial/mvebu-uart.txt index 2d0dbdf32d1d..a062bbca532c 100644 --- a/Documentation/devicetree/bindings/serial/mvebu-uart.txt +++ b/Documentation/devicetree/bindings/serial/mvebu-uart.txt @@ -14,7 +14,10 @@ Required properties: is provided (possible only with the "marvell,armada-3700-uart" compatible string for backward compatibility), it will only work if the baudrate was initialized by the bootloader and no baudrate - change will then be possible. + change will then be possible. When provided it should be UART1-clk + for standard variant of UART and UART2-clk for extended variant + of UART. TBG clock (with UART TBG divisors d1=d2=1) or xtal clock + should not be used and are supported only for backward compatibility. - interrupts: - Must contain three elements for the standard variant of the IP (marvell,armada-3700-uart): "uart-sum", "uart-tx" and "uart-rx", @@ -34,7 +37,7 @@ Example: uart0: serial@12000 { compatible = "marvell,armada-3700-uart"; reg = <0x12000 0x18>; - clocks = <&xtalclk>; + clocks = <&uartclk 0>; interrupts = , , @@ -45,7 +48,7 @@ Example: uart1: serial@12200 { compatible = "marvell,armada-3700-uart-ext"; reg = <0x12200 0x30>; - clocks = <&xtalclk>; + clocks = <&uartclk 1>; interrupts = , ;