From patchwork Thu Sep 30 09:58:36 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: 12527839 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 AFC4DC433EF for ; Thu, 30 Sep 2021 10:03:34 +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 7488361507 for ; Thu, 30 Sep 2021 10:03:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 7488361507 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=uBIS/eKNuB9D6b VZdbj9TlH8EpEtzb1bvqG4XkyTWR3Qat4/2RR6tX1eyOYexwkRrmNS7nsW0+dorJEMAkYgyTOUBn9 KZE5hkdQhgrZ4/bE51AKmZ3edHzx30E3OZwLaYP54IH5MuSpmpIuPFNOyzqJjplphjRPrnOJqtHTZ ouHrq2HVuBrajBiUjqPKPydFOl/G1s9p3lgI8J2JCjADiDOd+/kxrD6/5PA0iFlnVGKRNbdvTWGH6 w8xEuFMCCGLdTpDwSB00l10XwLP1HrDyPYlSb43Y9PkmolaryI0CDl5IbdHCNwWy8OVnNHAnqVwuL I9aH0610s6wdU28b/r2g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mVsre-00Dgel-FU; Thu, 30 Sep 2021 10:00:30 +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 1mVsqI-00DgJ8-Na for linux-arm-kernel@lists.infradead.org; Thu, 30 Sep 2021 09:59:11 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3C0AD61884; Thu, 30 Sep 2021 09:59:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1632995946; bh=Tj1KoLbRx36Cai5tD6gjvLCZPUH6QNJdzsfNne47jbM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XOeqr7X9zi3QrtkfR45pwgg/TsFX1TZaF50Ib+5lX+vK6Ork+xXQzTuXQWs/LxBjB mHv3SkHHT772fjjfRS3Cv6WjmyPoUjbBYHy/RLeuY0BcFBK0enygxe1BLXwktao6l4 IhwOsdETtNl7KtQoIiq+58MbMZjnngpq5Vuvb3Ik6lrsZHmSFlsvZ9zM+yz89/ospU NErevuoT2DDng/7XQm4phDF57q/K1cKkY7vu5CRU/NDrZR1HIA1fXSxeEa0aJGmHKJ 2MuMZxhPxcDyV984MNlfgrb3LYSmZwWhJ0G2n1r2M3pBVO20dvd/aBNVEOyo7oRLvI sMPgfpxX2ygBw== Received: by pali.im (Postfix) id F0C58E79; Thu, 30 Sep 2021 11:59:05 +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 4/6] dt-bindings: mvebu-uart: update information about UART clock Date: Thu, 30 Sep 2021 11:58:36 +0200 Message-Id: <20210930095838.28145-5-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_025906_840649_01CC3D9A X-CRM114-Status: GOOD ( 12.90 ) 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 Reviewed-by: Rob Herring --- 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 = , ;