From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 61E0C2B9A2 for ; Fri, 21 Jun 2024 14:45:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718981123; cv=none; b=JWhJQw8ghIuFtLCuK7rQ1Mlr8kX45sxxqNvDS233D2ugWCzs7thE5+sRflAWyq/+9Vp1fhSFORhLE5PE5q6m8zzwoerKpT7wt8rOxb/WmZbBeruKHIgNAYl7ueGym2Z1ti3O/+ICJgsQ34xGWjS4PjjRfUGgcvKNTuuIIWe/t3E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718981123; c=relaxed/simple; bh=rXuKXuKiQkV1khbR8ect8VwlJovvQvr8Lq35ek4CboA=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=DRRoa4dbBBshfBzHjBwftmOQmQZJGpeS+lN0sfq6ydp6RA9hr5vER+HyW2LLPvB9Hq1IZc9Yrz8T1MoiAEHgjAOZvZ4iNwdgKZWgKljTZ/ASd0HDB2FjclIXpJzASSuw09LcDbqExuYLm1rK5iR/usIJTx33hhd7aztMbZ4CRlE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from dude05.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::54]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1sKfVn-0004LC-Ar; Fri, 21 Jun 2024 16:45:11 +0200 From: Philipp Zabel Subject: [PATCH RFC 0/3] reset: Requesting pre-deasserted, auto-reasserting reset controls via devres Date: Fri, 21 Jun 2024 16:45:01 +0200 Message-Id: <20240621-reset-get-deasserted-v1-0-94ee76fb7b7d@pengutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAO2RdWYC/x2MPQqFMBAGryJbG0iCf7xW8AC2YhHMp27jk6yII N7dxWKKKWZuEiSG0C+7KeFk4f+m4vKMpjVsCwxHdfLWF7byziQIDrMoEUG0PhBN6ZoyNChCbSv SdE+Y+fq2A/VdS+PzvPzQ5cprAAAA To: Kunihiko Hayashi , Masami Hiramatsu , Lad Prabhakar , Geert Uytterhoeven , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, Philipp Zabel X-Mailer: b4 0.14-dev X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::54 X-SA-Exim-Mail-From: p.zabel@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org There is a recurring pattern of drivers requesting a reset control and deasserting the reset during probe, followed by registering a reset assertion via devm_add_action_or_reset(). We can simplify this by providing devm_reset_control_get_*_deasserted() helpers that return an already deasserted reset control, similarly to devm_clk_get_enabled(). This doesn't remove a lot of boilerplate at each instance, but there are quite a few of them now. regards Philipp Signed-off-by: Philipp Zabel --- Philipp Zabel (3): reset: replace boolean parameters with flags parameter reset: Add devres helpers to request pre-deasserted reset controls reset: uniphier-glue: Use devm_reset_control_bulk_get_shared_deasserted() drivers/reset/core.c | 103 ++++++++++---- drivers/reset/reset-uniphier-glue.c | 24 +--- include/linux/reset.h | 274 ++++++++++++++++++++++++++++-------- 3 files changed, 289 insertions(+), 112 deletions(-) --- base-commit: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0 change-id: 20240621-reset-get-deasserted-5185a8e4a706 Best regards, -- Philipp Zabel