From patchwork Mon Oct 21 07:26:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Inochi Amaoto X-Patchwork-Id: 13843736 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 334E8D0E6D3 for ; Mon, 21 Oct 2024 08:45:29 +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=bH52F8y8DgA4kKqETQNDDkdJLUfhAgGcty5nGkRo6fM=; b=GfRcqKKcvSW+q1 o6kR5DwgS8E2xX1qXF+aN3hyM1rXkV8nTIMzXkJ8WLkN+1A4YlOSN/elCfuCjRHN+67x9exstXblv QZ5E1Iadouiv8meS0o4H+/pVlCE65+gbjbULJ/+660txTGKuh9fsCVMG9xvG4CneZMyZlN/rdoBx8 ZvaHPf6bkTpZ3vwQAy0kIUEiEt510GPm190HvNuTWNhd6Ywh92pUsI4CN7YCWO66+58/xyq/D0ziH iKnpSh41op/liie+ZD7EnW6bunsfiaalRPJR/8ApWOwf5MFNUfxZ1qC05g9Fiibz+uhx7ZJhj1r9o Owu7Do7cLNvdtJzyEbdw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t2o2X-00000006bFu-0sV5; Mon, 21 Oct 2024 08:45:25 +0000 Received: from mail-pf1-x42b.google.com ([2607:f8b0:4864:20::42b]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t2moS-00000006N4f-0j8d for linux-riscv@lists.infradead.org; Mon, 21 Oct 2024 07:27:16 +0000 Received: by mail-pf1-x42b.google.com with SMTP id d2e1a72fcca58-71e5a1c9071so2933073b3a.0 for ; Mon, 21 Oct 2024 00:26:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1729495607; x=1730100407; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=4j1C+M3vH4yYgJravAN3BbrEjhxeaomVoGP3HhhhDJ0=; b=beKqTarfhVdlIc5psuM/vfXarBc0/1FYvKhixznz+XMnPxvkOsllAb6tDoSh6tVd0W aSNKznCyFvZtfAGkEjZrSv+paF8CN1ztcMNmTH8zLlV6AOIP76NWnp35WydEEk/vnbG8 tGnCaEWAtVGmODCW//N23DCo2/+YBWILcP6FAYfCNzgkO6bINYBj5SBfkHgL9xlqFZMv +ifRwxeo/uQ88oTKkwi36l0TZkPf5DH6MIFx3wgxwmsRTA+6gVC82aBEBy4cPRhB4A+O yaGUltFQp5sLhq6WMXtcLAGQIKKZSem5w5ppExIg9aYMiCxT6O1svr/03siB6gEIzPgp fdlA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729495607; x=1730100407; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=4j1C+M3vH4yYgJravAN3BbrEjhxeaomVoGP3HhhhDJ0=; b=vIvbvi1NTykmKXxROzDuStPiwANV1+7A/Zoijt/qfqNVOcTQ6IGXwm/lnrHT98IwZs T4dxxbS88C+WbTk02NTi+/K9R+IW/52YO8LBiMGzsPQeLP9JbjyhEpX1q+8c0u1OAXEo emEqF747ScQEb5gVfbElvbJQCXRqgfGhEKXv4Aglr+OT8g8xL/6dkTEViD8BqCF3GD/X og4i0ZyeaQ9Y2dDrE0IXWdM0Wm5+weoXssnIZpw2XM8Bs9K6uOry3d+KEjd2B/wXuu2P SYHnv0OC7pLjMBbSINByPyBWIp3PlMzII/7/SQ6+q+4ZxVGYqj4AdQHhEC6tjq1Cg6HB g4eQ== X-Forwarded-Encrypted: i=1; AJvYcCU3R2Kd8Q2+EO6+W83L6YQB3v637t4gXFEUzDtKpyEItnXUNm1Mkf8NapbO1oDOxDM2ZeOH8E2yfR996Q==@lists.infradead.org X-Gm-Message-State: AOJu0YwHyHyX7OmURYDhVAWSS2/oET3d8XJ3xMTB7m3eXcOh/3bKnk0H 1gqvRgbxjLrFm9SfuIqWWTMyIEextMpyJ+1Sa5Mh3l09yhi5/9pe X-Google-Smtp-Source: AGHT+IHqb73yFzexKFbAhuZdRp0bva1gxzmjy3KtNaUbjHVdxYDfeC9SLwusYN3X4iYo7hlJCIpGAA== X-Received: by 2002:a05:6a00:c93:b0:71e:4c2f:5bed with SMTP id d2e1a72fcca58-71ea330c78dmr14610957b3a.20.1729495606604; Mon, 21 Oct 2024 00:26:46 -0700 (PDT) Received: from localhost ([2001:da8:7001:11::cb]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71ec1356a24sm2263650b3a.96.2024.10.21.00.26.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2024 00:26:46 -0700 (PDT) From: Inochi Amaoto To: Chen Wang , Greg Kroah-Hartman , Jiri Slaby , Rob Herring , Krzysztof Kozlowski , Conor Dooley , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Andy Shevchenko , Paul Walmsley , Palmer Dabbelt , Albert Ou , Inochi Amaoto Cc: Yixun Lan , Inochi Amaoto , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org Subject: [PATCH v2 0/2] serial: 8250_dw: Introduce SG2044 uart support. Date: Mon, 21 Oct 2024 15:26:04 +0800 Message-ID: <20241021072606.585878-1-inochiama@gmail.com> X-Mailer: git-send-email 2.47.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241021_002648_310988_639A23AE X-CRM114-Status: UNSURE ( 8.19 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org SG2044 relys on an internal divisor when calculating bitrate, which means a wrong clock for the most common bitrates. So a quirk is needed for this uart device to skip the set rate call and only relys on the internal UART divisor. Changed from v1: 1. patch 1: improve the bindings commit message. 2. patch 2: rename jh7100 quirk and rename the quirk to dw8250_skip_set_rate_data. Inochi Amaoto (2): dt-bindings: serial: snps-dw-apb-uart: Add Sophgo SG2044 uarts serial: 8250_dw: Add Sophgo SG2044 quirk .../devicetree/bindings/serial/snps-dw-apb-uart.yaml | 4 ++++ drivers/tty/serial/8250/8250_dw.c | 5 +++-- 2 files changed, 7 insertions(+), 2 deletions(-) --- 2.47.0