From nobody Wed Feb 11 05:43:42 2026 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (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 969C514E2F2 for ; Thu, 16 May 2024 15:08:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715872138; cv=none; b=OFkfrdp3PgZ4X5THEZr+gLuBd8C8jHAO5dTjBtILf5/MzQ0XvdvK4QpjCNeXzk1R7cv4GoBKpPUBQfEnjE9MmUqvoFfp1Zj5VmaopylErW9hidCBhXpryzvBn2cmtUWzmFtsqh6vPYNSn7CKAOADPBeIKEOp7BOt4tW9NgWFyzs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715872138; c=relaxed/simple; bh=p/YPY8cjy1AkeLBPe0wJNMGliuqwW5LH2qnn291HdqY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=TerGZmfC9JdXSU4boMitGHH0gypcqmhhX/O2hb9/QMxjPUvqHTm9yluhs9fgvj+vy4qpYmYZBhdrfBJIhpN3rKjaL+axV66D9A/vZWI0B4W0W5yO0UgyhV9SqL7zNDyTYls8fAOJmW4CEJytowGO/Qk6rt3dQwsHxv8EGk+10eA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com; spf=pass smtp.mailfrom=baylibre.com; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b=FOD90Ys8; arc=none smtp.client-ip=209.85.128.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=baylibre.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b="FOD90Ys8" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-4201986d60aso29144345e9.3 for ; Thu, 16 May 2024 08:08:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1715872135; x=1716476935; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=puB+gD3ay9Sx041zZz0+FhSyarhWutAqTKpIgu3JFCo=; b=FOD90Ys8thMEkMdPY3oNFgRuhC+Xr43s+32UV1ygh2lCl2NaKDdsrfongK/mEZ8FLS N2TuWnETfs2nCNOd8UnGnRO02HhGLwZzLfhSvZPdqZOoWlNaU1a8ULrxIsE/svKVGiJ/ vDL5ReN4LznmB0QaeDxE2IyO4nCJ5LCc5dJbpSL7MLqNToKqa9cELH9f6dJOU7s82KEP 0WvJuRTPG9n+n5GaMQSAh2QzPwilXYHN8Q/hubFAiVOJAMlLJIwIsnNWpILadx0gRwwZ KZaS6vF8C4LB6bLOWnHNlnkdolahbInlyZeOOgG/z6Eq07/6uHLh4n9U+l4FMT9ZV809 d/KA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1715872135; x=1716476935; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=puB+gD3ay9Sx041zZz0+FhSyarhWutAqTKpIgu3JFCo=; b=jjGM0EqlmRvhS3siYG7n5+4I5KWiKWlKs1fTp7dSbrQ82HfabQciDWUI2EOWYrSdYi sJYRFGA8TEYlWkoC4NArtFZh25ouC+6Ke8ImmDjOzuyLCu/WQfKGzGD3gD7Bfd0FDmrc uzqG1uPFic/2UgTQK8Dyd6Q1aSDX2sIgP4KIADu4uyB9vO9YuAXwOnNs18bFhaQzDg22 Yo5+Hon30rUMMTDSjykM9Sy2WN1BqMbuDIwbispWTYHoegD+PuO5/fsgoVrVaqzKwF7x AJB2+vnfXRzL00OECeZ1yEbm7UX8uYxzritMVh7jHd8dmDSGjHHjlb3rjlaBLz5ANoM0 +eOQ== X-Forwarded-Encrypted: i=1; AJvYcCXWIoOO8TsIe8T8QTahX7LnbpJHEFLfxH8R/5rqo4GfssGTYDsbzNGT41DQ/jM5WqlxHQbLsLqvVTkgS+15kIJ+599lDoczBOAQ/d4M X-Gm-Message-State: AOJu0YxaHlEPKf+TWQiUqbi4zH2SsZdP9FQkgnHkipR2im0Ayk7w1kVI aHiH9A3zR5XFw/NmnPZriIt4RZr0/RD41OHiDG8FWJJ7PPVFgVCIvdeGkvXeULY= X-Google-Smtp-Source: AGHT+IERIDiWGU6HrqYN8ZiuBsFdA4JZIIGZnn0g1+UjHbl3RAe6+oeD2WgCdEHGNIBGCjI44i0UXQ== X-Received: by 2002:a05:600c:1383:b0:41c:2992:a3bd with SMTP id 5b1f17b1804b1-41feac5a45fmr141942315e9.27.1715872134895; Thu, 16 May 2024 08:08:54 -0700 (PDT) Received: from toaster.lan ([2a01:e0a:3c5:5fb1:1fce:7e5a:e201:edd5]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-41f87c25459sm309351725e9.18.2024.05.16.08.08.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 May 2024 08:08:54 -0700 (PDT) From: Jerome Brunet To: Philipp Zabel , Stephen Boyd , Neil Armstrong Cc: Jerome Brunet , Jan Dakinevich , linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-clk@vger.kernel.org Subject: [RFC PATCH 8/9] clk: meson: add auxiliary reset helper driver Date: Thu, 16 May 2024 17:08:38 +0200 Message-ID: <20240516150842.705844-9-jbrunet@baylibre.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240516150842.705844-1-jbrunet@baylibre.com> References: <20240516150842.705844-1-jbrunet@baylibre.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Bot: notify Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add an helper module to register auxiliary reset drivers from Amlogic clock controller. Signed-off-by: Jerome Brunet --- drivers/clk/meson/Kconfig | 5 ++ drivers/clk/meson/Makefile | 1 + drivers/clk/meson/meson-clk-rst-aux.c | 84 +++++++++++++++++++++++++++ drivers/clk/meson/meson-clk-rst-aux.h | 14 +++++ 4 files changed, 104 insertions(+) create mode 100644 drivers/clk/meson/meson-clk-rst-aux.c create mode 100644 drivers/clk/meson/meson-clk-rst-aux.h diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig index 59a40a49f8e1..6905aa2f080c 100644 --- a/drivers/clk/meson/Kconfig +++ b/drivers/clk/meson/Kconfig @@ -37,6 +37,11 @@ config COMMON_CLK_MESON_VCLK config COMMON_CLK_MESON_CLKC_UTILS tristate =20 +config COMMON_CLK_MESON_CLK_RST_AUX + depends on REGMAP && AUXILIARY_BUS + imply RESET_MESON + tristate + config COMMON_CLK_MESON_AO_CLKC tristate select COMMON_CLK_MESON_REGMAP diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile index 9ba43fe7a07a..2926a04b6c33 100644 --- a/drivers/clk/meson/Makefile +++ b/drivers/clk/meson/Makefile @@ -2,6 +2,7 @@ # Amlogic clock drivers =20 obj-$(CONFIG_COMMON_CLK_MESON_CLKC_UTILS) +=3D meson-clkc-utils.o +obj-$(CONFIG_COMMON_CLK_MESON_CLK_RST_AUX) +=3D meson-clk-rst-aux.o obj-$(CONFIG_COMMON_CLK_MESON_AO_CLKC) +=3D meson-aoclk.o obj-$(CONFIG_COMMON_CLK_MESON_CPU_DYNDIV) +=3D clk-cpu-dyndiv.o obj-$(CONFIG_COMMON_CLK_MESON_DUALDIV) +=3D clk-dualdiv.o diff --git a/drivers/clk/meson/meson-clk-rst-aux.c b/drivers/clk/meson/meso= n-clk-rst-aux.c new file mode 100644 index 000000000000..a7cf3c39828c --- /dev/null +++ b/drivers/clk/meson/meson-clk-rst-aux.c @@ -0,0 +1,84 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2024 BayLibre, SAS. +// Author: Jerome Brunet + +#include +#include +#include +#include + +#include + +#include "meson-clk-rst-aux.h" + +static DEFINE_IDA(meson_clk_rst_aux_ida); + +static void meson_clk_rst_aux_release(struct device *dev) +{ + struct auxiliary_device *adev =3D to_auxiliary_dev(dev); + struct meson8b_reset_adev *raux =3D + to_meson8b_reset_adev(adev); + + ida_free(&meson_clk_rst_aux_ida, adev->id); + kfree(raux); +} + +static void meson_clk_rst_aux_unregister_adev(void *_adev) +{ + struct auxiliary_device *adev =3D _adev; + + auxiliary_device_delete(adev); + auxiliary_device_uninit(adev); +} + +int devm_meson_clk_rst_aux_register(struct device *dev, + struct regmap *map, + const char *adev_name) +{ + struct meson8b_reset_adev *raux; + struct auxiliary_device *adev; + int ret; + + raux =3D kzalloc(sizeof(*raux), GFP_KERNEL); + if (!raux) + return -ENOMEM; + + ret =3D ida_alloc(&meson_clk_rst_aux_ida, GFP_KERNEL); + if (ret < 0) + goto raux_free; + + raux->map =3D map; + + adev =3D &raux->adev; + adev->id =3D ret; + adev->name =3D adev_name; + adev->dev.parent =3D dev; + adev->dev.release =3D meson_clk_rst_aux_release; + device_set_of_node_from_dev(&adev->dev, dev); + + ret =3D auxiliary_device_init(adev); + if (ret) + goto ida_free; + + ret =3D __auxiliary_device_add(adev, dev->driver->name); + if (ret) { + auxiliary_device_uninit(adev); + return ret; + } + + return devm_add_action_or_reset(dev, meson_clk_rst_aux_unregister_adev, + adev); + +ida_free: + ida_free(&meson_clk_rst_aux_ida, adev->id); +raux_free: + kfree(raux); + return ret; + +} +EXPORT_SYMBOL_GPL(devm_meson_clk_rst_aux_register); + +MODULE_DESCRIPTION("Amlogic auxiliary reset helper for clock"); +MODULE_AUTHOR("Jerome Brunet "); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/meson-clk-rst-aux.h b/drivers/clk/meson/meso= n-clk-rst-aux.h new file mode 100644 index 000000000000..386a55a36cd9 --- /dev/null +++ b/drivers/clk/meson/meson-clk-rst-aux.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2024 BayLibre, SAS. + * Author: Jerome Brunet + */ + +#ifndef __MESON_CLK_RST_AUX_H +#define __MESON_CLK_RST_AUX_H + +int devm_meson_clk_rst_aux_register(struct device *dev, + struct regmap *map, + const char *adev_name); + +#endif /* __MESON_CLK_RST_AUX_H */ --=20 2.43.0