From patchwork Mon Jan 10 10:42:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Tu X-Patchwork-Id: 12708574 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 4396CC4332F for ; Mon, 10 Jan 2022 10:43:06 +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: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:In-Reply-To:References: List-Owner; bh=5DiJojxCmxcs9caQNTDcNxoINOjfX4jlydVg5/pCr2k=; b=1wP9eNyrVkeg0z WVAPnqGkUlgA0dpV1Y0LFDGIFvHJ6Lf/IRLkbocojEpRxtV4zPFvLTqwmkPuIVJB6pxOgKWCTJiM2 20o0B1RYe/uD4Tm7rhM16EI6BSzNcwouybVuJa4GpDFD5PazlTGXXHXVuFC6IXb9+YgrHw4/zLiu3 EB8A+H8T5uol4fb5apymEgsH7LkSjXrd2colSSdEpoWXow44alVYLtfxRuM6UGiD5vDq2Kel3FRYq wZrlz1toepXAYtOcxl6KYqcN9GTWdvNJ8DRzA9qMWaNoYMgXPBMTeTIRqeO7MwVWQWxlyOi90GG7x SXhJAmK9uXcoNnn1i3Kw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1n6s8i-00ArYK-Oq; Mon, 10 Jan 2022 10:43:00 +0000 Received: from mail-sh.amlogic.com ([58.32.228.43]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1n6s8U-00ArSR-T5; Mon, 10 Jan 2022 10:42:48 +0000 Received: from droid06.amlogic.com (10.18.11.248) by mail-sh.amlogic.com (10.18.11.5) with Microsoft SMTP Server id 15.1.2176.14; Mon, 10 Jan 2022 18:42:42 +0800 From: Yu Tu To: , , , , CC: Greg Kroah-Hartman , Rob Herring , Jiri Slaby , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Yu Tu Subject: [PATCH V5 0/5] The UART driver compatible with Date: Mon, 10 Jan 2022 18:42:09 +0800 Message-ID: <20220110104214.25321-1-yu.tu@amlogic.com> X-Mailer: git-send-email 2.33.1 MIME-Version: 1.0 X-Originating-IP: [10.18.11.248] X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220110_024246_961639_C0C606CF X-CRM114-Status: UNSURE ( 7.17 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-amlogic@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-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Using the common Clock code to describe the UART baud rate clock makes it easier for the UART driver to be compatible with the baud rate requirements of the UART IP on different meson chips. Add Meson S4 SoC compatible. Yu Tu (5): dt-bindings: serial: meson: Drop legacy compatible. tty: serial: meson: Move request the register region. tty: serial: meson: Using the common clock code describe. tty: serial: meson: Make some bit of the REG5 register writable. tty: serial: meson: Added S4 SOC compatibility. V4 -> V5: Change error format. V3 -> V4: Change CCF to describe the UART baud rate clock as discussed in the email. V2 -> V3: add compatible = "amlogic,meson-gx-uart". Because it must change the DTS before it can be deleted V1 -> V2: Use CCF to describe the UART baud rate clock.Make some changes as discussed in the email Link:https://lore.kernel.org/linux-amlogic/20220110085604.18042-1-yu.tu@amlogic.com/ .../bindings/serial/amlogic,meson-uart.yaml | 10 +- drivers/tty/serial/meson_uart.c | 244 ++++++++++++------ 2 files changed, 177 insertions(+), 77 deletions(-)