From patchwork Mon Apr 22 11:11:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 792257 Received: from mail-wm1-f48.google.com (mail-wm1-f48.google.com [209.85.128.48]) (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 947AD146012 for ; Mon, 22 Apr 2024 11:11:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713784289; cv=none; b=jAxVKkNGqc7MYh5EORNT2FyuufQVcyZmU0ni/LxhLJQUbfMS9DTfbnh5qJdq2/YyXZg4L5NkUBberGhTyt0Ova2HEocZl93QgEZbjBCV1jojDUKW9A7vuP4I1kP9zLH3ZXutpSK2gTq4n42fJjirFbmPvCoG0/U/xrtrKpLkRuc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713784289; c=relaxed/simple; bh=zOXyQXhCiCAbqSzm1DmnoLf7s16Jjeeh3sXMykWQ4yA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=BU8vbWuTg8mbCv6JeHbHhxGPqoUWnBDSW5DF+zVwsFbw6Izusc3BcW+4SWJqAlYdO1UHoc3YRwc9/uPD/mW9vaw+O4w1IN3Jqo85NoMVwzWaUCjzNCjHSzmd9PI4IHyV8HsSgfyic7oKQyctsXpsRndAW5l6uD1C+0ikzF2Ytqw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=tuxon.dev; spf=pass smtp.mailfrom=tuxon.dev; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b=S8+ExHGE; arc=none smtp.client-ip=209.85.128.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=tuxon.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=tuxon.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="S8+ExHGE" Received: by mail-wm1-f48.google.com with SMTP id 5b1f17b1804b1-41a0979b9aeso9941715e9.3 for ; Mon, 22 Apr 2024 04:11:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1713784286; x=1714389086; 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=61hzISvK/wLrrN6ibfTaJ/oIzNgbxFUNfnYIb6kt4q8=; b=S8+ExHGE7UZRml9wIgN7GdoCDFGbOMuYgW30fQxMX7T9XTBMF4mHX+QD01Z3ohorUe 24/J+cQ0ikD27f716BNNq8vRm6UjEMo7eExWWjop0KXE2ITXdGfjI2LhRN3D9u3fhEO1 biaFZA5xMkPwHgHKnMIgAhNAawvs56RxUmgkU1odYbdMjp7WRWecgP982PFC4nZI857R oqtGEDj2/0GCs5AF7Tgk0dFLsAsP/tx6E6WlSVC7jigB0ObK9IM3sDCRFbW98zyZqbVs g24C+u0rPRexxxqyNjLqAEbzNQtxyagSm0P3v1zv319lrhtHL0NRhT0jVqomQqjTkSfv kcoA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713784286; x=1714389086; 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=61hzISvK/wLrrN6ibfTaJ/oIzNgbxFUNfnYIb6kt4q8=; b=OtWqok3nPZnE4K49i8E2Zm+4PGsBURoS8m1GOAhqhM7KYuauQb0m1hXEHnou/0Dghz wP1XaV9Ro+ToSP+Z59mm0h9I4F64+vjKmi8h1DkHvS7OGadDYGYxGMETImmfbr/0UHQ/ 2Ix8QOyt05DRc1vcDv3hoYQTJn960i4xr2FifGxM8DetNTRKsn2YTa1Bqy0OymC3N7yK fxJIgCXUIyPyu4b1cgUvUusqqUntq6TViXnwHG3Eb++YyxzoeIilLZ33/6RMbCM9yyHt HLCDmY+WFFtDAp7IlcEaeI4f3sdtpZXJHhPPz2eS22AzlY9hltDVd5LVrHwR4es60svn xOow== X-Forwarded-Encrypted: i=1; AJvYcCVrL7fmbqdnLvHli7Rn/5lKF8GXCquIWAGNbPj1IYjTLXy7Kai1Krwq9AlyEPa0UiBVoyVVhyKNf9K7cmboCqMNHBYfd7N1oYp9Hapo X-Gm-Message-State: AOJu0Ywsh5cIMXYBy5pLhLvIRfGAyfpWCc7/pTOX+NsjeozzxqvDb4lI TmBLZVZGfSVYpJ1Nu4yL28+B8lGqxZHrLfBWKe/k6CLEcBQL3eHttGd2GFcWLz0= X-Google-Smtp-Source: AGHT+IGMfRYSdMcLHCdhxlRSB93POiy1y+u9GQT5dTES5qnzs1ds9F6kAbynLwEbX6sbZ/W6e01cVQ== X-Received: by 2002:a05:600c:46c8:b0:414:d95:cc47 with SMTP id q8-20020a05600c46c800b004140d95cc47mr9334640wmo.30.1713784285915; Mon, 22 Apr 2024 04:11:25 -0700 (PDT) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.53]) by smtp.gmail.com with ESMTPSA id r18-20020a05600c35d200b00418d434ae4esm16292565wmq.10.2024.04.22.04.11.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Apr 2024 04:11:25 -0700 (PDT) From: Claudiu X-Google-Original-From: Claudiu To: gregkh@linuxfoundation.org, jirislaby@kernel.org, geert+renesas@glider.be, ulf.hansson@linaro.org Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, linux-pm@vger.kernel.org, claudiu.beznea@tuxon.dev Subject: [PATCH] serial: sh-sci: Call device_set_wakeup_path() for serial console Date: Mon, 22 Apr 2024 14:11:23 +0300 Message-Id: <20240422111123.1622967-1-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea In case the SCI is used as a UART console, no_console_suspend is available in bootargs and SCI is part of a software-controlled power domain we need to call device_set_wakeup_path(). This lets the power domain core code knows that this domain should not be powered off durring system suspend. Otherwise, the SCI power domain is turned off, nothing is printed while suspending and the suspend/resume process is blocked. This was detected on the RZ/G3S SoC while adding support for power domains. Signed-off-by: Claudiu Beznea --- drivers/tty/serial/sh-sci.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 97031db26ae4..57a7f18e16e4 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -3441,8 +3441,12 @@ static __maybe_unused int sci_suspend(struct device *dev) { struct sci_port *sport = dev_get_drvdata(dev); - if (sport) + if (sport) { + if (uart_console(&sport->port) && !console_suspend_enabled) + device_set_wakeup_path(dev); + uart_suspend_port(&sci_uart_driver, &sport->port); + } return 0; }