From patchwork Thu Mar 14 23:21:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Dakinevich X-Patchwork-Id: 13592848 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 5F1E5C54E60 for ; Thu, 14 Mar 2024 23:23:42 +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:References:In-Reply-To: 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: List-Owner; bh=lu7XmL1U9iSF/P4CNBwN7NMR0XoRV+0jEItxQghgmQA=; b=wUuuDibbILUaId UjQSIIWbvTpbGbM26/y13a/tpJ4+Q60LSK/LKPtpcNTWdCFd9SH3VLFQz9Nzr4hCf0b/GTzTRF18i NZmaSXcJ7ntMbvp2rkG8lE1BS6k7F1oEE1FYOXKWtgjnRR7TvisVkEYLJs1wC42pb1uLT2e2qOyjs /o7HPc06JNuSuWZCQJsvZOTLex3ObopiaSdPNHFKOvYoEHlmyR5scpgPtN4gwtbnFFQtXKeLptt6V 5nfvWFk/Vj4XshMtR0R2J6qEEZG+SSFq3qOMX96KZXH/eqd2En0aA4bXxWBukUqI2OnqkVvD38byw UNjKYYV73iNcZ4Uj8Yog==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rkuQ2-0000000Fxq6-13u0; Thu, 14 Mar 2024 23:23:26 +0000 Received: from mx1.sberdevices.ru ([37.18.73.165]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rkuPp-0000000FxbK-1hw6; Thu, 14 Mar 2024 23:23:16 +0000 Received: from p-infra-ksmg-sc-msk01 (localhost [127.0.0.1]) by mx1.sberdevices.ru (Postfix) with ESMTP id 2C36110000F; Fri, 15 Mar 2024 02:23:01 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.sberdevices.ru 2C36110000F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=salutedevices.com; s=mail; t=1710458581; bh=gLbD9tc2pn1QeC2j87RMdeV5jO49713zgVqzzHkHt5E=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=olAfs4U+XHSt8Jjd8Kt9sbP4C31rhs/GCY26OiVHdADa4Y7Yp2XPE0JKjjsd9lW6v 0cKI4H9dXCsXKID7URpBSBeYnTuS32Ueu5oVaUM5/dzdYScIhPKj2WkVZT7EYkEt9r I29pzstQtiDxer98h7IzQDdZcuVt57HKUu/eAukhxAZVCX2SOD76x3NTz06BFeFwR7 RVvEljeL67R7hbxAOX9BtnzOQPd8S/XntJr3dNVx6xShjJrttCn1fGVg0oiQkhV0vu BcATVRWw3lAOtQ+tUOVXGMTiEQ+O1vHTO7hxkDCGqsWCyWwucLDfu7BQTi/OCQFwks RZL3jDyEKIsJw== Received: from smtp.sberdevices.ru (p-i-exch-sc-m02.sberdevices.ru [172.16.192.103]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.sberdevices.ru (Postfix) with ESMTPS; Fri, 15 Mar 2024 02:23:01 +0300 (MSK) Received: from CAB-WSD-0003115.sberdevices.ru (100.64.160.123) by p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Fri, 15 Mar 2024 02:23:00 +0300 From: Jan Dakinevich To: Jan Dakinevich , Neil Armstrong , Jerome Brunet , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , Kevin Hilman , Martin Blumenstingl , Liam Girdwood , Mark Brown , Linus Walleij , Jaroslav Kysela , Takashi Iwai , , , , , , , , CC: Subject: [PATCH 02/25] clk: meson: axg: move reset controller's code to separate module Date: Fri, 15 Mar 2024 02:21:38 +0300 Message-ID: <20240314232201.2102178-3-jan.dakinevich@salutedevices.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240314232201.2102178-1-jan.dakinevich@salutedevices.com> References: <20240314232201.2102178-1-jan.dakinevich@salutedevices.com> MIME-Version: 1.0 X-Originating-IP: [100.64.160.123] X-ClientProxiedBy: p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) To p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 183875 [Feb 29 2024] X-KSMG-AntiSpam-Version: 6.1.0.3 X-KSMG-AntiSpam-Envelope-From: YVDakinevich@sberdevices.ru X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 7 0.3.7 6d6bf5bd8eea7373134f756a2fd73e9456bb7d1a, {Tracking_smtp_not_equal_from}, FromAlignment: n, {Tracking_smtp_domain_mismatch}, {Tracking_smtp_domain_2level_mismatch}, {Tracking_sender_alignment_int}, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2024/02/29 19:21:00 #23899999 X-KSMG-AntiVirus-Status: Clean, skipped X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240314_162314_442171_E14B9341 X-CRM114-Status: GOOD ( 24.57 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This code will by reused by A1 SoC. Signed-off-by: Jan Dakinevich --- drivers/clk/meson/Kconfig | 5 ++ drivers/clk/meson/Makefile | 1 + drivers/clk/meson/axg-audio.c | 95 +---------------------- drivers/clk/meson/meson-audio-rstc.c | 109 +++++++++++++++++++++++++++ drivers/clk/meson/meson-audio-rstc.h | 12 +++ 5 files changed, 130 insertions(+), 92 deletions(-) create mode 100644 drivers/clk/meson/meson-audio-rstc.c create mode 100644 drivers/clk/meson/meson-audio-rstc.h diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig index 29ffd14d267b..d6a2fa5f7e88 100644 --- a/drivers/clk/meson/Kconfig +++ b/drivers/clk/meson/Kconfig @@ -48,6 +48,10 @@ config COMMON_CLK_MESON_CPU_DYNDIV tristate select COMMON_CLK_MESON_REGMAP +config COMMON_CLK_MESON_AUDIO_RSTC + tristate + select RESET_CONTROLLER + config COMMON_CLK_MESON8B bool "Meson8 SoC Clock controller support" depends on ARM @@ -101,6 +105,7 @@ config COMMON_CLK_AXG_AUDIO select COMMON_CLK_MESON_PHASE select COMMON_CLK_MESON_SCLK_DIV select COMMON_CLK_MESON_CLKC_UTILS + select COMMON_CLK_MESON_AUDIO_RSTC select REGMAP_MMIO help Support for the audio clock controller on AmLogic A113D devices, diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile index 9ee4b954c896..88d94921a4dc 100644 --- a/drivers/clk/meson/Makefile +++ b/drivers/clk/meson/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_COMMON_CLK_MESON_PLL) += clk-pll.o obj-$(CONFIG_COMMON_CLK_MESON_REGMAP) += clk-regmap.o obj-$(CONFIG_COMMON_CLK_MESON_SCLK_DIV) += sclk-div.o obj-$(CONFIG_COMMON_CLK_MESON_VID_PLL_DIV) += vid-pll-div.o +obj-$(CONFIG_COMMON_CLK_MESON_AUDIO_RSTC) += meson-audio-rstc.o # Amlogic Clock controllers diff --git a/drivers/clk/meson/axg-audio.c b/drivers/clk/meson/axg-audio.c index ac3482960903..990203a7ad5c 100644 --- a/drivers/clk/meson/axg-audio.c +++ b/drivers/clk/meson/axg-audio.c @@ -12,10 +12,10 @@ #include #include #include -#include #include #include "meson-clkc-utils.h" +#include "meson-audio-rstc.h" #include "axg-audio.h" #include "clk-regmap.h" #include "clk-phase.h" @@ -1648,84 +1648,6 @@ static struct clk_regmap *const sm1_clk_regmaps[] = { &sm1_sysclk_b_en, }; -struct axg_audio_reset_data { - struct reset_controller_dev rstc; - struct regmap *map; - unsigned int offset; -}; - -static void axg_audio_reset_reg_and_bit(struct axg_audio_reset_data *rst, - unsigned long id, - unsigned int *reg, - unsigned int *bit) -{ - unsigned int stride = regmap_get_reg_stride(rst->map); - - *reg = (id / (stride * BITS_PER_BYTE)) * stride; - *reg += rst->offset; - *bit = id % (stride * BITS_PER_BYTE); -} - -static int axg_audio_reset_update(struct reset_controller_dev *rcdev, - unsigned long id, bool assert) -{ - struct axg_audio_reset_data *rst = - container_of(rcdev, struct axg_audio_reset_data, rstc); - unsigned int offset, bit; - - axg_audio_reset_reg_and_bit(rst, id, &offset, &bit); - - regmap_update_bits(rst->map, offset, BIT(bit), - assert ? BIT(bit) : 0); - - return 0; -} - -static int axg_audio_reset_status(struct reset_controller_dev *rcdev, - unsigned long id) -{ - struct axg_audio_reset_data *rst = - container_of(rcdev, struct axg_audio_reset_data, rstc); - unsigned int val, offset, bit; - - axg_audio_reset_reg_and_bit(rst, id, &offset, &bit); - - regmap_read(rst->map, offset, &val); - - return !!(val & BIT(bit)); -} - -static int axg_audio_reset_assert(struct reset_controller_dev *rcdev, - unsigned long id) -{ - return axg_audio_reset_update(rcdev, id, true); -} - -static int axg_audio_reset_deassert(struct reset_controller_dev *rcdev, - unsigned long id) -{ - return axg_audio_reset_update(rcdev, id, false); -} - -static int axg_audio_reset_toggle(struct reset_controller_dev *rcdev, - unsigned long id) -{ - int ret; - - ret = axg_audio_reset_assert(rcdev, id); - if (ret) - return ret; - - return axg_audio_reset_deassert(rcdev, id); -} - -static const struct reset_control_ops axg_audio_rstc_ops = { - .assert = axg_audio_reset_assert, - .deassert = axg_audio_reset_deassert, - .reset = axg_audio_reset_toggle, - .status = axg_audio_reset_status, -}; - static const struct regmap_config axg_audio_regmap_cfg = { .reg_bits = 32, .val_bits = 32, @@ -1745,7 +1667,6 @@ static int axg_audio_clkc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; const struct audioclk_data *data; - struct axg_audio_reset_data *rst; struct regmap *map; void __iomem *regs; struct clk_hw *hw; @@ -1807,18 +1728,8 @@ static int axg_audio_clkc_probe(struct platform_device *pdev) if (!data->reset_num) return 0; - rst = devm_kzalloc(dev, sizeof(*rst), GFP_KERNEL); - if (!rst) - return -ENOMEM; - - rst->map = map; - rst->offset = data->reset_offset; - rst->rstc.nr_resets = data->reset_num; - rst->rstc.ops = &axg_audio_rstc_ops; - rst->rstc.of_node = dev->of_node; - rst->rstc.owner = THIS_MODULE; - - return devm_reset_controller_register(dev, &rst->rstc); + return meson_audio_rstc_register(dev, map, data->reset_offset, + data->reset_num); } static const struct audioclk_data axg_audioclk_data = { diff --git a/drivers/clk/meson/meson-audio-rstc.c b/drivers/clk/meson/meson-audio-rstc.c new file mode 100644 index 000000000000..2079d24c40f4 --- /dev/null +++ b/drivers/clk/meson/meson-audio-rstc.c @@ -0,0 +1,109 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* + * Copyright (c) 2018 BayLibre, SAS. + * Author: Jerome Brunet + */ + +#include + +#include "meson-audio-rstc.h" + +struct meson_audio_reset_data { + struct reset_controller_dev rstc; + struct regmap *map; + unsigned int offset; +}; + +static void meson_audio_reset_reg_and_bit(struct meson_audio_reset_data *rst, + unsigned long id, + unsigned int *reg, + unsigned int *bit) +{ + unsigned int stride = regmap_get_reg_stride(rst->map); + + *reg = (id / (stride * BITS_PER_BYTE)) * stride; + *reg += rst->offset; + *bit = id % (stride * BITS_PER_BYTE); +} + +static int meson_audio_reset_update(struct reset_controller_dev *rcdev, + unsigned long id, bool assert) +{ + struct meson_audio_reset_data *rst = + container_of(rcdev, struct meson_audio_reset_data, rstc); + unsigned int offset, bit; + + meson_audio_reset_reg_and_bit(rst, id, &offset, &bit); + + regmap_update_bits(rst->map, offset, BIT(bit), + assert ? BIT(bit) : 0); + + return 0; +} + +static int meson_audio_reset_status(struct reset_controller_dev *rcdev, + unsigned long id) +{ + struct meson_audio_reset_data *rst = + container_of(rcdev, struct meson_audio_reset_data, rstc); + unsigned int val, offset, bit; + + meson_audio_reset_reg_and_bit(rst, id, &offset, &bit); + + regmap_read(rst->map, offset, &val); + + return !!(val & BIT(bit)); +} + +static int meson_audio_reset_assert(struct reset_controller_dev *rcdev, + unsigned long id) +{ + return meson_audio_reset_update(rcdev, id, true); +} + +static int meson_audio_reset_deassert(struct reset_controller_dev *rcdev, + unsigned long id) +{ + return meson_audio_reset_update(rcdev, id, false); +} + +static int meson_audio_reset_toggle(struct reset_controller_dev *rcdev, + unsigned long id) +{ + int ret; + + ret = meson_audio_reset_assert(rcdev, id); + if (ret) + return ret; + + return meson_audio_reset_deassert(rcdev, id); +} + +static const struct reset_control_ops meson_audio_rstc_ops = { + .assert = meson_audio_reset_assert, + .deassert = meson_audio_reset_deassert, + .reset = meson_audio_reset_toggle, + .status = meson_audio_reset_status, +}; + +int meson_audio_rstc_register(struct device *dev, struct regmap *map, + unsigned int offset, unsigned int num) +{ + struct meson_audio_reset_data *rst; + + rst = devm_kzalloc(dev, sizeof(*rst), GFP_KERNEL); + if (!rst) + return -ENOMEM; + + rst->map = map; + rst->offset = offset; + rst->rstc.nr_resets = num; + rst->rstc.ops = &meson_audio_rstc_ops; + rst->rstc.of_node = dev->of_node; + rst->rstc.owner = THIS_MODULE; + + return devm_reset_controller_register(dev, &rst->rstc); +} +EXPORT_SYMBOL_GPL(meson_audio_rstc_register); + +MODULE_LICENSE("GPL v2"); diff --git a/drivers/clk/meson/meson-audio-rstc.h b/drivers/clk/meson/meson-audio-rstc.h new file mode 100644 index 000000000000..6b441549de03 --- /dev/null +++ b/drivers/clk/meson/meson-audio-rstc.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ + +#ifndef __MESON_AUDIO_RSTC_H +#define __MESON_AUDIO_RSTC_H + +#include +#include + +int meson_audio_rstc_register(struct device *dev, struct regmap *map, + unsigned int offset, unsigned int num); + +#endif /* __MESON_AUDIO_RSTC_H */