From patchwork Sun Sep 8 07:50:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nick Chan X-Patchwork-Id: 826558 Received: from mail-oo1-f44.google.com (mail-oo1-f44.google.com [209.85.161.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EEB904C66; Sun, 8 Sep 2024 07:59:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725782375; cv=none; b=V0C977YZEZ4mgpceDfMBzSKsaCpVQeCGlJ2xdaT/ItnxVe1wsY16AfwZz6gnYfcvpC0WbaFJlVZVAqa1YPC6rVkac2pP4Pcv1zX7qiQlhBr3vlGbLL4nX3iQPThqvlFIJ4/6jJnTmSd6An1TtoYlcI7dHRRj3QDWIOn6kBolSww= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725782375; c=relaxed/simple; bh=jbSFvKRmOU53nKVT6skmCp2X/sydWQgG7fEHQCHd40w=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=fXaXsPwdjZmUy6vLKqzll5T/ac2emVLIbyteS5IehMZY/GtCgXq5jpdVW54q7GAUq2rQQ26wYLXsYelL2VRWKa1zvqvDy2teZJAENGBhsoOM1TvLMkL+R6CPfGmKJQo1bfcNxRBoZ1tMY0iYhPUarXAcDb0Zt9fZwf/YueU+uR0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=W7lCXhY6; arc=none smtp.client-ip=209.85.161.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="W7lCXhY6" Received: by mail-oo1-f44.google.com with SMTP id 006d021491bc7-5df9433ac0cso2402741eaf.3; Sun, 08 Sep 2024 00:59:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1725782373; x=1726387173; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=1vxC7/1i8CwujpweZ1wTUP4heu2CRN+sI53b8o2l2Nw=; b=W7lCXhY6jPPRTnEK7cAZq7C989JEnR3arwNszdJkonm5HNdu+U+MuVhay1QfWdShm/ orSCwHGNXnXpJqyVc4cX3+aRSziRG58IEK63CPdDc10GsKu/3JGEPvfPzNw/V5qrNIb3 3esDdI3H8D0Sxruup/TY/0r3zaBTRHKp+YB+QBewFbMwJOiXHBnokqf3PDwpXtDhbEYG Clra5n8Iby1xI9xWq55zriKv0Rg4swdWclgKzzETi4DlC6ai9zSr+kEOSZ4Rp5K3Cb79 I8P8mg25JlNibWL6w9PUFpdd+uSonAKXcLB4zvJm2xY2LtorYGbVjkXXoSMsYGqlkW7y POQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725782373; x=1726387173; 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=1vxC7/1i8CwujpweZ1wTUP4heu2CRN+sI53b8o2l2Nw=; b=f9mLy8DnYZ5pQIm472qB64XK0ojIuQEEgf7pAH6y1KszNXuhnCrH4IeZnh6sTYLlzI 85doqPbC7n3Cg458L1g38rsKvE0nZBNjABfm5BLcfLjlggkWXdqiJk4RP9DsrcBIwpkx zc7BNxKLhTcid/FDsZ5ELbYbskJUe12JTOu/EOSsq0FnU2mrnejplxKTluv5XoA1gKnM teGPcGtK/Tv3eSM1IJ5lDmlQV+MAf8aBFBGDBfAQ8c9Fp7c9jl9W8kMZWrLTcPg9PaYh zY9O0O24Ohfr5Ky6n1L4wUgvACVj50boONdnhlDuhQinUOrq0zbQVJFfZZBKMCA+/H+S AYlA== X-Forwarded-Encrypted: i=1; AJvYcCUJ/KWft0RVIrReUQCRIul5paVYtQZV7g0591VfZ6IPpFs2dqAHUlvWifTpnURpB59jqM0lp9F5uim4agM=@vger.kernel.org, AJvYcCUTHKB3CoXa815V5rWX9itob68Qa27qX2lSaHz8fzNb3RaKFNHVSYKyQolOZ8Cn57eT3/d6o6XPd3OBQVrttgM4Y7k=@vger.kernel.org, AJvYcCXYQ9eStCadE4uwVsEqI7++DB1C7DKLs2oL+guxa5w36+K6HZ8fgejAIXYhGHgPbYBbeQSIWUA5WyoPfo35@vger.kernel.org X-Gm-Message-State: AOJu0YyeKwNElcXgOZSEpYbuw6+A/Ju6HOgI5TgxbhXdmx7QQdfK0Xt7 H0xb+jAbtcBOh97B9/P7PkEJGBq1L1GxfT6pgCfyZDGCWXU9dZRp X-Google-Smtp-Source: AGHT+IG2oi15GFOnc4iepyTdQsMnqiBXkibBTS5arEx2FbGWXrLqY9KDnKuLXcROgxDP2ZZUq7RAjw== X-Received: by 2002:a05:6820:2213:b0:5da:a2fd:5af9 with SMTP id 006d021491bc7-5e1a9da272cmr7835288eaf.8.1725782372868; Sun, 08 Sep 2024 00:59:32 -0700 (PDT) Received: from localhost.localdomain ([59.188.211.160]) by smtp.googlemail.com with ESMTPSA id 41be03b00d2f7-7d8255dc1c6sm2012690a12.68.2024.09.08.00.59.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Sep 2024 00:59:32 -0700 (PDT) From: Nick Chan To: Krzysztof Kozlowski , Alim Akhtar , Greg Kroah-Hartman , Jiri Slaby , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org Cc: asahi@lists.linux.dev, Nick Chan Subject: [PATCH 0/3] tty: serial: samsung: Serial fixes for Apple A7-A11 SoCs Date: Sun, 8 Sep 2024 15:50:47 +0800 Message-ID: <20240908075904.12133-1-towinchenmi@gmail.com> X-Mailer: git-send-email 2.46.0 Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Hi, This series fixes issues with serial on A7-A11 SoCs. The changes do not seem to affect existing M1 and up users so they can be applied unconditionally. Firstly, these SoCs require 32-bit writes on the serial port. This only manifested in earlycon as reg-io-width in device tree is consulted for normal serial writes. Secondly, A7-A9 SoCs seems to use different bits for RXTO and RXTO enable. Accessing these bits in addition to the original RXTO and RXTO enable bits will allow serial rx to work correctly on those SoCs. Changes in v2: - Mention A7-A11 in the comment about changing register accesses to MMIO32. - Use BIT() macro for new entries, and change the existing APPLE_S5L_* entries for consistency. v1: https://lore.kernel.org/linux-samsung-soc/20240907111431.2970-1-towinchenmi@gmail.com Nick Chan --- Nick Chan (3): tty: serial: samsung: Use BIT() macro for APPLE_S5L_* tty: serial: samsung: Fix A7-A11 serial earlycon SError tty: serial: samsung: Fix serial rx on Apple A7-A9 drivers/tty/serial/samsung_tty.c | 22 ++++++++++++++++------ include/linux/serial_s3c.h | 24 ++++++++++++++---------- 2 files changed, 30 insertions(+), 16 deletions(-) base-commit: 9aaeb87ce1e966169a57f53a02ba05b30880ffb8