From patchwork Thu Jun 24 22:48:59 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: 466668 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=-14.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 B8371C49EA5 for ; Thu, 24 Jun 2021 22:49:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 92B80613C9 for ; Thu, 24 Jun 2021 22:49:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229971AbhFXWwP (ORCPT ); Thu, 24 Jun 2021 18:52:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:54444 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229521AbhFXWwM (ORCPT ); Thu, 24 Jun 2021 18:52:12 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id EFD9360FEA; Thu, 24 Jun 2021 22:49:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624574993; bh=XHzIArEs04I4ZPQ2dDXvTjAfIIUr3VwtEY21rEvVH9M=; h=From:To:Cc:Subject:Date:From; b=g4UPq7fOSifptYk2UAyWcYaNegosp3zV76mkC3dPHSDT5AYwYw3ARzX3xVTuGouKT 1onTajtDLP5TF1YNCLdjTG77fUJdkFzelbPkos7Qpthzu0W+q8FlqThOMSHDBXsbek NiIA6624pvlrSGLCRKkJRBCNea8Je9J7LTIRP7NjrtW3Y6TvLL6xsNGF+ZThE7f3uO hbJZfBd+hSlwOvabRDH06gTMLPY0H6ZZ+7yNBZSGNPcP/f25KpB7lvh8npGJZN5JRW ZIwGBMyzI2MLSzJog7o7lCowEhBqVzvhX6Gy7TKIuXOna2ZR0OyFflmJP7UFqnfut8 Pe8DLzwsMhcDQ== Received: by pali.im (Postfix) id 697FB8A3; Fri, 25 Jun 2021 00:49:50 +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 00/10] serial: mvebu-uart: Fixes and new support for higher baudrates Date: Fri, 25 Jun 2021 00:48:59 +0200 Message-Id: <20210624224909.6350-1-pali@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org This patch series fixes mvebu-uart driver used on Marvell Armada 37xx boards and add support for baudrates higher than 230400. Pali Rohár (10): serial: mvebu-uart: fix calculation of clock divisor serial: mvebu-uart: do not allow changing baudrate when uartclk is not available serial: mvebu-uart: correctly calculate minimal possible baudrate dt-bindings: mvebu-uart: fix documentation arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART serial: mvebu-uart: remove unused member nb from struct mvebu_uart serial: mvebu-uart: implement UART clock driver for configuring UART base clock dt-bindings: mvebu-uart: document DT bindings for marvell,armada-3700-uart-clock arm64: dts: marvell: armada-37xx: add device node for UART clock and use it serial: mvebu-uart: implement support for baudrates higher than 230400 .../bindings/clock/armada3700-uart-clock.txt | 24 + .../devicetree/bindings/serial/mvebu-uart.txt | 15 +- .../arm64/boot/dts/marvell/armada-3720-db.dts | 4 + .../dts/marvell/armada-3720-espressobin.dtsi | 4 + .../dts/marvell/armada-3720-turris-mox.dts | 4 + .../boot/dts/marvell/armada-3720-uDPU.dts | 4 + arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 17 +- drivers/tty/serial/mvebu-uart.c | 603 +++++++++++++++++- 8 files changed, 645 insertions(+), 30 deletions(-) create mode 100644 Documentation/devicetree/bindings/clock/armada3700-uart-clock.txt Reviewed-by: Geert Uytterhoeven