From patchwork Wed Sep 29 08:20:32 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: 12524883 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 EFEC1C433EF for ; Wed, 29 Sep 2021 08:25:40 +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 BAD2E6138E for ; Wed, 29 Sep 2021 08:25:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org BAD2E6138E 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=WTvzYap1Zmtb7Y 5pA2N2kJDxfHRZFaHQ9keMNlU7BNN4exEJpUk+90HfWQ044+hTHV+L972YMuuiYaD+y7Cc9ms9Tuv +wFzTk7yUwo5cvfaHIi4YnPQ2ml+tntQ5H9LVUj3u/4HtVwsuEa13Kh+9dsF9sEe3nO5DhkVA5wSu zd0EeRyCEKSGC6ZAyLf6xFgNYlN1RuSRs5HC3tb2GcS8V4ceUpt32KZRMZP0AkkuwlpnQCMUiUmqG EwqrFPrh5EfOqWeNisPYp5I+DkvxSztGlV2plHR5HwVgtyisJniATa16ti9bRoBumgU1kVUQOlleX +97unhEoP02Z9HgoI6Yg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mVUsG-00AO6Z-Dw; Wed, 29 Sep 2021 08:23:32 +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 1mVUrf-00ANw7-50 for linux-arm-kernel@lists.infradead.org; Wed, 29 Sep 2021 08:22:56 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id A01C06140B; Wed, 29 Sep 2021 08:22:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1632903774; bh=Tj1KoLbRx36Cai5tD6gjvLCZPUH6QNJdzsfNne47jbM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LxtUxqUIxvNSQH7KVq0de/WufXjk+XbKrKyMl+GdemC6zUKOH1PARCL5qXm5sWs0v 3A9+lxwyWeWFn9/cKrVZPk01PgL6p6CUiiMET9Mzhtyqz9xWIlRaf7f8qxXwjTCV9T j28H2OPqXARaQtbXwQZZfIRHZDwkI9w6hRG5jl4EoNKBsu5Wwue2NWvA1nZtzMn0M7 lwQYWb8QgREw69UXD7JSN4dgZeznc1eeSWappTxEflnRoC4R5LnbwX6YWewGQ5mzBI MaDpa5J3rQbTmzswvd0VMS7yLcFDOW8qGK0X7k92LpzCkU04Plw/PoJEpIBwT00Sdz 4FiVzOuspODbg== Received: by pali.im (Postfix) id B49F21F1C; Wed, 29 Sep 2021 10:22:52 +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 v6 4/6] dt-bindings: mvebu-uart: update information about UART clock Date: Wed, 29 Sep 2021 10:20:32 +0200 Message-Id: <20210929082034.15098-5-pali@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210929082034.15098-1-pali@kernel.org> References: <20210929082034.15098-1-pali@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210929_012255_267495_A6C32B9B X-CRM114-Status: GOOD ( 13.02 ) 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 = , ;