From patchwork Mon Jul 4 12:15:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Conor Dooley X-Patchwork-Id: 587251 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CA067C433EF for ; Mon, 4 Jul 2022 12:16:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234168AbiGDMQd (ORCPT ); Mon, 4 Jul 2022 08:16:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53420 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234177AbiGDMQ1 (ORCPT ); Mon, 4 Jul 2022 08:16:27 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 99D3B5FD1; Mon, 4 Jul 2022 05:16:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1656936986; x=1688472986; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=OXB45vMtUs1nfpYjQaPxWOb/6F6yUpAgZPrlzrfPAk4=; b=pJtHMdf6ZniIEw0IAS6In39v7+tcxx3RqVMwnZnNZpT36f8OKit/YPlc bOkFv/2+kVeoPaYJav8An2vzkMCEEzXkpCr7C8ohcbEiSF8LQY0JxRk/E rHARRg0E1QJ0pjvQsOBHPGauqQ2+Xf/e0DCt7pbhqkbUgIIYch1Ni/sxR quMkbwCJjc7tL0EEXOkU/3fZCFlsbCn0gV8NtfXa3nFlikYWBcrYLVqTv M6aw3pN2tBC36QDKvlkruN1KHy7IH8E0XsS3yhfO4Jp+crVzPlfB8alTj VY6Wt4Xn0ckNvfs86Aq1YO4zKWY5ZgkxGoutMqfKw3sap1q02d3Tb9XAR g==; X-IronPort-AV: E=Sophos;i="5.92,243,1650956400"; d="scan'208";a="180647863" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 04 Jul 2022 05:16:25 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Mon, 4 Jul 2022 05:16:25 -0700 Received: from wendy.microchip.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Mon, 4 Jul 2022 05:16:22 -0700 From: Conor Dooley To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Palmer Dabbelt , Conor Dooley , Philipp Zabel , Daire McNamara CC: Paul Walmsley , Albert Ou , , , , Subject: [PATCH v2 02/12] clk: microchip: mpfs: add reset controller Date: Mon, 4 Jul 2022 13:15:49 +0100 Message-ID: <20220704121558.2088698-3-conor.dooley@microchip.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220704121558.2088698-1-conor.dooley@microchip.com> References: <20220704121558.2088698-1-conor.dooley@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add a reset controller to PolarFire SoC's clock driver. This reset controller is registered as an aux device and read/write functions exported to the drivers namespace so that the reset controller can access the peripheral device reset register. Signed-off-by: Conor Dooley --- drivers/clk/microchip/Kconfig | 1 + drivers/clk/microchip/clk-mpfs.c | 116 ++++++++++++++++++++++++++++--- include/soc/microchip/mpfs.h | 8 +++ 3 files changed, 114 insertions(+), 11 deletions(-) diff --git a/drivers/clk/microchip/Kconfig b/drivers/clk/microchip/Kconfig index a5a99873c4f5..b46e864b3bd8 100644 --- a/drivers/clk/microchip/Kconfig +++ b/drivers/clk/microchip/Kconfig @@ -6,5 +6,6 @@ config COMMON_CLK_PIC32 config MCHP_CLK_MPFS bool "Clk driver for PolarFire SoC" depends on (RISCV && SOC_MICROCHIP_POLARFIRE) || COMPILE_TEST + select AUXILIARY_BUS help Supports Clock Configuration for PolarFire SoC diff --git a/drivers/clk/microchip/clk-mpfs.c b/drivers/clk/microchip/clk-mpfs.c index 070c3b896559..a93f78619dc3 100644 --- a/drivers/clk/microchip/clk-mpfs.c +++ b/drivers/clk/microchip/clk-mpfs.c @@ -3,12 +3,14 @@ * Daire McNamara, * Copyright (C) 2020 Microchip Technology Inc. All rights reserved. */ +#include #include #include #include #include #include #include +#include /* address offset of control registers */ #define REG_MSSPLL_REF_CR 0x08u @@ -28,6 +30,7 @@ #define MSSPLL_FIXED_DIV 4u struct mpfs_clock_data { + struct device *dev; void __iomem *base; void __iomem *msspll_base; struct clk_hw_onecell_data hw_data; @@ -302,10 +305,6 @@ static int mpfs_periph_clk_enable(struct clk_hw *hw) spin_lock_irqsave(&mpfs_clk_lock, flags); - reg = readl_relaxed(base_addr + REG_SUBBLK_RESET_CR); - val = reg & ~(1u << periph->shift); - writel_relaxed(val, base_addr + REG_SUBBLK_RESET_CR); - reg = readl_relaxed(base_addr + REG_SUBBLK_CLOCK_CR); val = reg | (1u << periph->shift); writel_relaxed(val, base_addr + REG_SUBBLK_CLOCK_CR); @@ -339,12 +338,9 @@ static int mpfs_periph_clk_is_enabled(struct clk_hw *hw) void __iomem *base_addr = periph_hw->sys_base; u32 reg; - reg = readl_relaxed(base_addr + REG_SUBBLK_RESET_CR); - if ((reg & (1u << periph->shift)) == 0u) { - reg = readl_relaxed(base_addr + REG_SUBBLK_CLOCK_CR); - if (reg & (1u << periph->shift)) - return 1; - } + reg = readl_relaxed(base_addr + REG_SUBBLK_CLOCK_CR); + if (reg & (1u << periph->shift)) + return 1; return 0; } @@ -438,6 +434,98 @@ static int mpfs_clk_register_periphs(struct device *dev, struct mpfs_periph_hw_c return 0; } +/* + * Peripheral clock resets + */ + +#if IS_ENABLED(CONFIG_RESET_CONTROLLER) + +u32 mpfs_reset_read(struct device *dev) +{ + struct mpfs_clock_data *clock_data = dev_get_drvdata(dev->parent); + + return readl_relaxed(clock_data->base + REG_SUBBLK_RESET_CR); +} +EXPORT_SYMBOL_NS_GPL(mpfs_reset_read, MCHP_CLK_MPFS); + +void mpfs_reset_write(struct device *dev, u32 val) +{ + struct mpfs_clock_data *clock_data = dev_get_drvdata(dev->parent); + + writel_relaxed(val, clock_data->base + REG_SUBBLK_RESET_CR); +} +EXPORT_SYMBOL_NS_GPL(mpfs_reset_write, MCHP_CLK_MPFS); + +static void mpfs_reset_unregister_adev(void *_adev) +{ + struct auxiliary_device *adev = _adev; + + auxiliary_device_delete(adev); +} + +static void mpfs_reset_adev_release(struct device *dev) +{ + struct auxiliary_device *adev = to_auxiliary_dev(dev); + + auxiliary_device_uninit(adev); + + kfree(adev); +} + +static struct auxiliary_device *mpfs_reset_adev_alloc(struct mpfs_clock_data *clk_data) +{ + struct auxiliary_device *adev; + int ret; + + adev = kzalloc(sizeof(*adev), GFP_KERNEL); + if (!adev) + return ERR_PTR(-ENOMEM); + + adev->name = "reset-mpfs"; + adev->dev.parent = clk_data->dev; + adev->dev.release = mpfs_reset_adev_release; + adev->id = 666u; + + ret = auxiliary_device_init(adev); + if (ret) { + kfree(adev); + return ERR_PTR(ret); + } + + return adev; +} + +static int mpfs_reset_controller_register(struct mpfs_clock_data *clk_data) +{ + struct auxiliary_device *adev; + int ret; + + adev = mpfs_reset_adev_alloc(clk_data); + if (IS_ERR(adev)) + return PTR_ERR(adev); + + ret = auxiliary_device_add(adev); + if (ret) { + auxiliary_device_uninit(adev); + return ret; + } + + ret = devm_add_action_or_reset(clk_data->dev, mpfs_reset_unregister_adev, adev); + if (ret) + return ret; + + return 0; +} + +#else /* !CONFIG_RESET_CONTROLLER */ + +static int mpfs_reset_controller_register(struct mpfs_clock_data *clk_data) +{ + return 0; +} + +#endif /* !CONFIG_RESET_CONTROLLER */ + static int mpfs_clk_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -462,6 +550,8 @@ static int mpfs_clk_probe(struct platform_device *pdev) return PTR_ERR(clk_data->msspll_base); clk_data->hw_data.num = num_clks; + clk_data->dev = dev; + dev_set_drvdata(dev, clk_data); ret = mpfs_clk_register_mssplls(dev, mpfs_msspll_clks, ARRAY_SIZE(mpfs_msspll_clks), clk_data); @@ -481,6 +571,10 @@ static int mpfs_clk_probe(struct platform_device *pdev) if (ret) return ret; + ret = mpfs_reset_controller_register(clk_data); + if (ret) + return ret; + return ret; } @@ -488,7 +582,7 @@ static const struct of_device_id mpfs_clk_of_match_table[] = { { .compatible = "microchip,mpfs-clkcfg", }, {} }; -MODULE_DEVICE_TABLE(of, mpfs_clk_match_table); +MODULE_DEVICE_TABLE(of, mpfs_clk_of_match_table); static struct platform_driver mpfs_clk_driver = { .probe = mpfs_clk_probe, diff --git a/include/soc/microchip/mpfs.h b/include/soc/microchip/mpfs.h index 6466515262bd..f916dcde457f 100644 --- a/include/soc/microchip/mpfs.h +++ b/include/soc/microchip/mpfs.h @@ -40,4 +40,12 @@ struct mpfs_sys_controller *mpfs_sys_controller_get(struct device *dev); #endif /* if IS_ENABLED(CONFIG_POLARFIRE_SOC_SYS_CTRL) */ +#if IS_ENABLED(CONFIG_MCHP_CLK_MPFS) + +u32 mpfs_reset_read(struct device *dev); + +void mpfs_reset_write(struct device *dev, u32 val); + +#endif /* if IS_ENABLED(CONFIG_MCHP_CLK_MPFS) */ + #endif /* __SOC_MPFS_H__ */ From patchwork Mon Jul 4 12:15:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Conor Dooley X-Patchwork-Id: 587250 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4762ECCA483 for ; Mon, 4 Jul 2022 12:16:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234232AbiGDMQg (ORCPT ); Mon, 4 Jul 2022 08:16:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234152AbiGDMQe (ORCPT ); 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04 Jul 2022 05:16:32 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Mon, 4 Jul 2022 05:16:32 -0700 Received: from wendy.microchip.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Mon, 4 Jul 2022 05:16:29 -0700 From: Conor Dooley To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Palmer Dabbelt , Conor Dooley , Philipp Zabel , Daire McNamara CC: Paul Walmsley , Albert Ou , , , , Subject: [PATCH v2 04/12] MAINTAINERS: add polarfire soc reset controller Date: Mon, 4 Jul 2022 13:15:51 +0100 Message-ID: <20220704121558.2088698-5-conor.dooley@microchip.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220704121558.2088698-1-conor.dooley@microchip.com> References: <20220704121558.2088698-1-conor.dooley@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add the newly added reset controller for the PolarFire SoC (MPFS) to the existing MAINTAINERS entry. Signed-off-by: Conor Dooley --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 1fc9ead83d2a..7b82ffce6c22 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -17159,6 +17159,7 @@ L: linux-riscv@lists.infradead.org S: Supported F: arch/riscv/boot/dts/microchip/ F: drivers/mailbox/mailbox-mpfs.c +F: drivers/reset/reset-mpfs.c F: drivers/soc/microchip/ F: include/soc/microchip/mpfs.h From patchwork Mon Jul 4 12:15:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Conor Dooley X-Patchwork-Id: 587249 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2762BC43334 for ; Mon, 4 Jul 2022 12:16:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234081AbiGDMQy (ORCPT ); Mon, 4 Jul 2022 08:16:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234404AbiGDMQo (ORCPT ); Mon, 4 Jul 2022 08:16:44 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BCDC1DF28; Mon, 4 Jul 2022 05:16:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1656937002; x=1688473002; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=eJyjWXL9c84MeJXb2RPk2+RjYUjKmqKhd+L3kczClrw=; b=cq0c38OC7I8aAcSoF+umOT0lucx45Z924q0FzNSg6tB13y2+wDcKBsff 4hNaufAYecylmnoK6r+700zro3foj4ihLLWJUOuISdSckMmERmv8i44Kl qcPk9+TyVlotAtlAU/9irLC2ZZm8ixYkCyKswyXrp6BN+RA07BjPQSyth kgN8lOSWx2RAMlHcN6QP1XkcaSVAyaEPvEl0MZVsvAdLP21kw56c828eD JwZp2dTC6JFpmjeInZcjydoRr/jRTbCaIiq1ylzp6WaA7E1OS6GaLV79c wWp+tWJjSsavhJ/jpJ7X/8hYOUfM2CuvpPIYnUmslTCo43cnEoLDVfFD8 w==; X-IronPort-AV: E=Sophos;i="5.92,243,1650956400"; d="scan'208";a="163197485" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 04 Jul 2022 05:16:41 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Mon, 4 Jul 2022 05:16:38 -0700 Received: from wendy.microchip.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Mon, 4 Jul 2022 05:16:35 -0700 From: Conor Dooley To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Palmer Dabbelt , Conor Dooley , Philipp Zabel , Daire McNamara CC: Paul Walmsley , Albert Ou , , , , Subject: [PATCH v2 06/12] clk: microchip: mpfs: add module_authors entries Date: Mon, 4 Jul 2022 13:15:53 +0100 Message-ID: <20220704121558.2088698-7-conor.dooley@microchip.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220704121558.2088698-1-conor.dooley@microchip.com> References: <20220704121558.2088698-1-conor.dooley@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add myself and Daire as authors since we were mainly responsible for the drivers development. Signed-off-by: Conor Dooley --- drivers/clk/microchip/clk-mpfs.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/clk/microchip/clk-mpfs.c b/drivers/clk/microchip/clk-mpfs.c index a93f78619dc3..c7cafd61b7f7 100644 --- a/drivers/clk/microchip/clk-mpfs.c +++ b/drivers/clk/microchip/clk-mpfs.c @@ -1,7 +1,9 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Daire McNamara, - * Copyright (C) 2020 Microchip Technology Inc. All rights reserved. + * Author: Daire McNamara + * Author: Conor Dooley + * + * Copyright (C) 2020-2022 Microchip Technology Inc. All rights reserved. */ #include #include @@ -605,4 +607,6 @@ static void __exit clk_mpfs_exit(void) module_exit(clk_mpfs_exit); MODULE_DESCRIPTION("Microchip PolarFire SoC Clock Driver"); +MODULE_AUTHOR("Daire McNamara "); +MODULE_AUTHOR("Conor Dooley "); MODULE_LICENSE("GPL v2"); From patchwork Mon Jul 4 12:15:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Conor Dooley X-Patchwork-Id: 587248 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 612C0CCA47C for ; Mon, 4 Jul 2022 12:17:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234434AbiGDMRS (ORCPT ); Mon, 4 Jul 2022 08:17:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53950 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234443AbiGDMQx (ORCPT ); Mon, 4 Jul 2022 08:16:53 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 00A21120AE; Mon, 4 Jul 2022 05:16:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1656937009; x=1688473009; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=TrBWC54P2CLz/iMBkusZyjETCWePFhmnr/L05n3qk6g=; b=vV/NsKiMPFzPgbuw9+OGK1ZTMletOdEbks9yl3KkSzJ6r6bz3kVypG1I ZQn0ELXttDtMk/aCo2+YMUhd29grmnbWb3t+OpEwmqguTFNkX09zjChgN d72MmzBavQsUsysum4BaKiHknnREuP3aDyKHIijL+XNhcC/z0mSQY34pI IQWV0QvUC9BBq3gZlxFx8+6LFgcMn8Jhdbo64Z4TTlbLFRv2888q6EbLw +bIGbkog1+lD44nmx19v5MVAEI4zHR54UlkmcPZLwyFyyIvyiOEcPsKsN jPSVaxFPikiKAPQTPQDgHE0Z2muOcLGAoDl8gRsl3wNyymh+uCb9wQQ9k Q==; X-IronPort-AV: E=Sophos;i="5.92,243,1650956400"; d="scan'208";a="166262039" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa2.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 04 Jul 2022 05:16:47 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Mon, 4 Jul 2022 05:16:44 -0700 Received: from wendy.microchip.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Mon, 4 Jul 2022 05:16:41 -0700 From: Conor Dooley To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Palmer Dabbelt , Conor Dooley , Philipp Zabel , Daire McNamara CC: Paul Walmsley , Albert Ou , , , , Subject: [PATCH v2 08/12] clk: microchip: mpfs: move id & offset out of clock structs Date: Mon, 4 Jul 2022 13:15:55 +0100 Message-ID: <20220704121558.2088698-9-conor.dooley@microchip.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220704121558.2088698-1-conor.dooley@microchip.com> References: <20220704121558.2088698-1-conor.dooley@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The id and offset are the only thing differentiating the clock structs from "regular" clock structures. On the pretext of converting to more normal structures, move the id and offset out of the clock structs and into the hw structs instead. Signed-off-by: Conor Dooley --- drivers/clk/microchip/clk-mpfs.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/drivers/clk/microchip/clk-mpfs.c b/drivers/clk/microchip/clk-mpfs.c index a23f63bcd074..750f28481498 100644 --- a/drivers/clk/microchip/clk-mpfs.c +++ b/drivers/clk/microchip/clk-mpfs.c @@ -53,8 +53,6 @@ struct mpfs_msspll_hw_clock { struct mpfs_cfg_clock { const struct clk_div_table *table; - unsigned int id; - u32 reg_offset; u8 shift; u8 width; u8 flags; @@ -65,12 +63,13 @@ struct mpfs_cfg_hw_clock { void __iomem *sys_base; struct clk_hw hw; struct clk_init_data init; + unsigned int id; + u32 reg_offset; }; #define to_mpfs_cfg_clk(_hw) container_of(_hw, struct mpfs_cfg_hw_clock, hw) struct mpfs_periph_clock { - unsigned int id; u8 shift; }; @@ -78,6 +77,7 @@ struct mpfs_periph_hw_clock { struct mpfs_periph_clock periph; void __iomem *sys_base; struct clk_hw hw; + unsigned int id; }; #define to_mpfs_periph_clk(_hw) container_of(_hw, struct mpfs_periph_hw_clock, hw) @@ -243,7 +243,7 @@ static unsigned long mpfs_cfg_clk_recalc_rate(struct clk_hw *hw, unsigned long p void __iomem *base_addr = cfg_hw->sys_base; u32 val; - val = readl_relaxed(base_addr + cfg->reg_offset) >> cfg->shift; + val = readl_relaxed(base_addr + cfg_hw->reg_offset) >> cfg->shift; val &= clk_div_mask(cfg->width); return divider_recalc_rate(hw, prate, val, cfg->table, cfg->flags, cfg->width); @@ -272,10 +272,10 @@ static int mpfs_cfg_clk_set_rate(struct clk_hw *hw, unsigned long rate, unsigned return divider_setting; spin_lock_irqsave(&mpfs_clk_lock, flags); - val = readl_relaxed(base_addr + cfg->reg_offset); + val = readl_relaxed(base_addr + cfg_hw->reg_offset); val &= ~(clk_div_mask(cfg->width) << cfg_hw->cfg.shift); val |= divider_setting << cfg->shift; - writel_relaxed(val, base_addr + cfg->reg_offset); + writel_relaxed(val, base_addr + cfg_hw->reg_offset); spin_unlock_irqrestore(&mpfs_clk_lock, flags); @@ -289,11 +289,11 @@ static const struct clk_ops mpfs_clk_cfg_ops = { }; #define CLK_CFG(_id, _name, _parent, _shift, _width, _table, _flags, _offset) { \ - .cfg.id = _id, \ + .id = _id, \ .cfg.shift = _shift, \ .cfg.width = _width, \ .cfg.table = _table, \ - .cfg.reg_offset = _offset, \ + .reg_offset = _offset, \ .cfg.flags = _flags, \ .hw.init = CLK_HW_INIT(_name, _parent, &mpfs_clk_cfg_ops, 0), \ } @@ -306,11 +306,11 @@ static struct mpfs_cfg_hw_clock mpfs_cfg_clks[] = { CLK_CFG(CLK_AHB, "clk_ahb", "clk_msspll", 4, 2, mpfs_div_ahb_table, 0, REG_CLOCK_CONFIG_CR), { - .cfg.id = CLK_RTCREF, + .id = CLK_RTCREF, .cfg.shift = 0, .cfg.width = 12, .cfg.table = mpfs_div_rtcref_table, - .cfg.reg_offset = REG_RTC_CLOCK_CR, + .reg_offset = REG_RTC_CLOCK_CR, .cfg.flags = CLK_DIVIDER_ONE_BASED, .hw.init = CLK_HW_INIT_PARENTS_DATA("clk_rtcref", mpfs_ext_ref, &mpfs_clk_cfg_ops, 0), @@ -338,9 +338,9 @@ static int mpfs_clk_register_cfgs(struct device *dev, struct mpfs_cfg_hw_clock * ret = mpfs_clk_register_cfg(dev, cfg_hw, sys_base); if (ret) return dev_err_probe(dev, ret, "failed to register clock id: %d\n", - cfg_hw->cfg.id); + cfg_hw->id); - id = cfg_hw->cfg.id; + id = cfg_hw->id; data->hw_data.hws[id] = &cfg_hw->hw; } @@ -408,7 +408,7 @@ static const struct clk_ops mpfs_periph_clk_ops = { }; #define CLK_PERIPH(_id, _name, _parent, _shift, _flags) { \ - .periph.id = _id, \ + .id = _id, \ .periph.shift = _shift, \ .hw.init = CLK_HW_INIT_HW(_name, _parent, &mpfs_periph_clk_ops, \ _flags), \ @@ -481,9 +481,9 @@ static int mpfs_clk_register_periphs(struct device *dev, struct mpfs_periph_hw_c ret = mpfs_clk_register_periph(dev, periph_hw, sys_base); if (ret) return dev_err_probe(dev, ret, "failed to register clock id: %d\n", - periph_hw->periph.id); + periph_hw->id); - id = periph_hws[i].periph.id; + id = periph_hws[i].id; data->hw_data.hws[id] = &periph_hw->hw; } From patchwork Mon Jul 4 12:15:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Conor Dooley X-Patchwork-Id: 587246 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4536FCCA482 for ; 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X-IronPort-AV: E=Sophos;i="5.92,243,1650956400"; d="scan'208";a="170953313" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa3.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 04 Jul 2022 05:16:51 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Mon, 4 Jul 2022 05:16:50 -0700 Received: from wendy.microchip.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Mon, 4 Jul 2022 05:16:48 -0700 From: Conor Dooley To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Palmer Dabbelt , Conor Dooley , Philipp Zabel , Daire McNamara CC: Paul Walmsley , Albert Ou , , , , Subject: [PATCH v2 10/12] clk: microchip: mpfs: delete 2 line mpfs_clk_register_foo() Date: Mon, 4 Jul 2022 13:15:57 +0100 Message-ID: <20220704121558.2088698-11-conor.dooley@microchip.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220704121558.2088698-1-conor.dooley@microchip.com> References: <20220704121558.2088698-1-conor.dooley@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The register functions are now comprised of only a single operation each and no longer add anything to the driver. Delete them. Signed-off-by: Conor Dooley --- drivers/clk/microchip/clk-mpfs.c | 33 ++++++-------------------------- 1 file changed, 6 insertions(+), 27 deletions(-) diff --git a/drivers/clk/microchip/clk-mpfs.c b/drivers/clk/microchip/clk-mpfs.c index 0330c2839a24..e58d0bc4669a 100644 --- a/drivers/clk/microchip/clk-mpfs.c +++ b/drivers/clk/microchip/clk-mpfs.c @@ -203,14 +203,6 @@ static struct mpfs_msspll_hw_clock mpfs_msspll_clks[] = { MSSPLL_FBDIV_WIDTH, 0, REG_MSSPLL_SSCG_2_CR), }; -static int mpfs_clk_register_msspll(struct device *dev, struct mpfs_msspll_hw_clock *msspll_hw, - void __iomem *base) -{ - msspll_hw->base = base; - - return devm_clk_hw_register(dev, &msspll_hw->hw); -} - static int mpfs_clk_register_mssplls(struct device *dev, struct mpfs_msspll_hw_clock *msspll_hws, unsigned int num_clks, struct mpfs_clock_data *data) { @@ -220,7 +212,8 @@ static int mpfs_clk_register_mssplls(struct device *dev, struct mpfs_msspll_hw_c for (i = 0; i < num_clks; i++) { struct mpfs_msspll_hw_clock *msspll_hw = &msspll_hws[i]; - ret = mpfs_clk_register_msspll(dev, msspll_hw, data->msspll_base); + msspll_hw->base = data->msspll_base; + ret = devm_clk_hw_register(dev, &msspll_hw->hw); if (ret) return dev_err_probe(dev, ret, "failed to register msspll id: %d\n", CLK_MSSPLL); @@ -314,14 +307,6 @@ static struct mpfs_cfg_hw_clock mpfs_cfg_clks[] = { } }; -static int mpfs_clk_register_cfg(struct device *dev, struct mpfs_cfg_hw_clock *cfg_hw, - void __iomem *base) -{ - cfg_hw->cfg.reg = base + cfg_hw->reg_offset; - - return devm_clk_hw_register(dev, &cfg_hw->hw); -} - static int mpfs_clk_register_cfgs(struct device *dev, struct mpfs_cfg_hw_clock *cfg_hws, unsigned int num_clks, struct mpfs_clock_data *data) { @@ -331,7 +316,8 @@ static int mpfs_clk_register_cfgs(struct device *dev, struct mpfs_cfg_hw_clock * for (i = 0; i < num_clks; i++) { struct mpfs_cfg_hw_clock *cfg_hw = &cfg_hws[i]; - ret = mpfs_clk_register_cfg(dev, cfg_hw, data->base); + cfg_hw->cfg.reg = data->base + cfg_hw->reg_offset; + ret = devm_clk_hw_register(dev, &cfg_hw->hw); if (ret) return dev_err_probe(dev, ret, "failed to register clock id: %d\n", cfg_hw->id); @@ -453,14 +439,6 @@ static struct mpfs_periph_hw_clock mpfs_periph_clks[] = { CLK_PERIPH(CLK_CFM, "clk_periph_cfm", PARENT_CLK(AHB), 29, 0), }; -static int mpfs_clk_register_periph(struct device *dev, struct mpfs_periph_hw_clock *periph_hw, - void __iomem *base) -{ - periph_hw->periph.reg = base + REG_SUBBLK_CLOCK_CR; - - return devm_clk_hw_register(dev, &periph_hw->hw); -} - static int mpfs_clk_register_periphs(struct device *dev, struct mpfs_periph_hw_clock *periph_hws, int num_clks, struct mpfs_clock_data *data) { @@ -470,7 +448,8 @@ static int mpfs_clk_register_periphs(struct device *dev, struct mpfs_periph_hw_c for (i = 0; i < num_clks; i++) { struct mpfs_periph_hw_clock *periph_hw = &periph_hws[i]; - ret = mpfs_clk_register_periph(dev, periph_hw, data->base); + periph_hw->periph.reg = data->base + REG_SUBBLK_CLOCK_CR; + ret = devm_clk_hw_register(dev, &periph_hw->hw); if (ret) return dev_err_probe(dev, ret, "failed to register clock id: %d\n", periph_hw->id); From patchwork Mon Jul 4 12:15:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Conor Dooley X-Patchwork-Id: 587247 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DAFE9C43334 for ; Mon, 4 Jul 2022 12:18:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233101AbiGDMR7 (ORCPT ); Mon, 4 Jul 2022 08:17:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53922 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231339AbiGDMRR (ORCPT ); Mon, 4 Jul 2022 08:17:17 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9D8261263F; Mon, 4 Jul 2022 05:17:01 -0700 (PDT) DKIM-Signature: v=1; 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Mon, 4 Jul 2022 05:16:53 -0700 Received: from wendy.microchip.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Mon, 4 Jul 2022 05:16:51 -0700 From: Conor Dooley To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Palmer Dabbelt , Conor Dooley , Philipp Zabel , Daire McNamara CC: Paul Walmsley , Albert Ou , , , , Subject: [PATCH v2 11/12] clk: microchip: mpfs: convert cfg_clk to clk_divider Date: Mon, 4 Jul 2022 13:15:58 +0100 Message-ID: <20220704121558.2088698-12-conor.dooley@microchip.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220704121558.2088698-1-conor.dooley@microchip.com> References: <20220704121558.2088698-1-conor.dooley@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The cfg_clk struct is now just a redefinition of the clk_divider struct with custom implentations of the ops, that implement an extra level of redirection. Remove the custom struct and replace it with clk_divider. Signed-off-by: Conor Dooley --- drivers/clk/microchip/clk-mpfs.c | 76 ++++---------------------------- 1 file changed, 8 insertions(+), 68 deletions(-) diff --git a/drivers/clk/microchip/clk-mpfs.c b/drivers/clk/microchip/clk-mpfs.c index e58d0bc4669a..1d9e8c1e56b6 100644 --- a/drivers/clk/microchip/clk-mpfs.c +++ b/drivers/clk/microchip/clk-mpfs.c @@ -51,24 +51,13 @@ struct mpfs_msspll_hw_clock { #define to_mpfs_msspll_clk(_hw) container_of(_hw, struct mpfs_msspll_hw_clock, hw) -struct mpfs_cfg_clock { - void __iomem *reg; - const struct clk_div_table *table; - u8 shift; - u8 width; - u8 flags; -}; - struct mpfs_cfg_hw_clock { - struct mpfs_cfg_clock cfg; - struct clk_hw hw; + struct clk_divider cfg; struct clk_init_data init; unsigned int id; u32 reg_offset; }; -#define to_mpfs_cfg_clk(_hw) container_of(_hw, struct mpfs_cfg_hw_clock, hw) - struct mpfs_periph_clock { void __iomem *reg; u8 shift; @@ -228,56 +217,6 @@ static int mpfs_clk_register_mssplls(struct device *dev, struct mpfs_msspll_hw_c * "CFG" clocks */ -static unsigned long mpfs_cfg_clk_recalc_rate(struct clk_hw *hw, unsigned long prate) -{ - struct mpfs_cfg_hw_clock *cfg_hw = to_mpfs_cfg_clk(hw); - struct mpfs_cfg_clock *cfg = &cfg_hw->cfg; - u32 val; - - val = readl_relaxed(cfg->reg) >> cfg->shift; - val &= clk_div_mask(cfg->width); - - return divider_recalc_rate(hw, prate, val, cfg->table, cfg->flags, cfg->width); -} - -static long mpfs_cfg_clk_round_rate(struct clk_hw *hw, unsigned long rate, unsigned long *prate) -{ - struct mpfs_cfg_hw_clock *cfg_hw = to_mpfs_cfg_clk(hw); - struct mpfs_cfg_clock *cfg = &cfg_hw->cfg; - - return divider_round_rate(hw, rate, prate, cfg->table, cfg->width, 0); -} - -static int mpfs_cfg_clk_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long prate) -{ - struct mpfs_cfg_hw_clock *cfg_hw = to_mpfs_cfg_clk(hw); - struct mpfs_cfg_clock *cfg = &cfg_hw->cfg; - unsigned long flags; - u32 val; - int divider_setting; - - divider_setting = divider_get_val(rate, prate, cfg->table, cfg->width, 0); - - if (divider_setting < 0) - return divider_setting; - - spin_lock_irqsave(&mpfs_clk_lock, flags); - val = readl_relaxed(cfg->reg); - val &= ~(clk_div_mask(cfg->width) << cfg_hw->cfg.shift); - val |= divider_setting << cfg->shift; - writel_relaxed(val, cfg->reg); - - spin_unlock_irqrestore(&mpfs_clk_lock, flags); - - return 0; -} - -static const struct clk_ops mpfs_clk_cfg_ops = { - .recalc_rate = mpfs_cfg_clk_recalc_rate, - .round_rate = mpfs_cfg_clk_round_rate, - .set_rate = mpfs_cfg_clk_set_rate, -}; - #define CLK_CFG(_id, _name, _parent, _shift, _width, _table, _flags, _offset) { \ .id = _id, \ .cfg.shift = _shift, \ @@ -285,7 +224,8 @@ static const struct clk_ops mpfs_clk_cfg_ops = { .cfg.table = _table, \ .reg_offset = _offset, \ .cfg.flags = _flags, \ - .hw.init = CLK_HW_INIT(_name, _parent, &mpfs_clk_cfg_ops, 0), \ + .cfg.hw.init = CLK_HW_INIT(_name, _parent, &clk_divider_ops, 0), \ + .cfg.lock = &mpfs_clk_lock, \ } static struct mpfs_cfg_hw_clock mpfs_cfg_clks[] = { @@ -302,8 +242,8 @@ static struct mpfs_cfg_hw_clock mpfs_cfg_clks[] = { .cfg.table = mpfs_div_rtcref_table, .reg_offset = REG_RTC_CLOCK_CR, .cfg.flags = CLK_DIVIDER_ONE_BASED, - .hw.init = - CLK_HW_INIT_PARENTS_DATA("clk_rtcref", mpfs_ext_ref, &mpfs_clk_cfg_ops, 0), + .cfg.hw.init = + CLK_HW_INIT_PARENTS_DATA("clk_rtcref", mpfs_ext_ref, &clk_divider_ops, 0), } }; @@ -317,13 +257,13 @@ static int mpfs_clk_register_cfgs(struct device *dev, struct mpfs_cfg_hw_clock * struct mpfs_cfg_hw_clock *cfg_hw = &cfg_hws[i]; cfg_hw->cfg.reg = data->base + cfg_hw->reg_offset; - ret = devm_clk_hw_register(dev, &cfg_hw->hw); + ret = devm_clk_hw_register(dev, &cfg_hw->cfg.hw); if (ret) return dev_err_probe(dev, ret, "failed to register clock id: %d\n", cfg_hw->id); id = cfg_hw->id; - data->hw_data.hws[id] = &cfg_hw->hw; + data->hw_data.hws[id] = &cfg_hw->cfg.hw; } return 0; @@ -393,7 +333,7 @@ static const struct clk_ops mpfs_periph_clk_ops = { _flags), \ } -#define PARENT_CLK(PARENT) (&mpfs_cfg_clks[CLK_##PARENT].hw) +#define PARENT_CLK(PARENT) (&mpfs_cfg_clks[CLK_##PARENT].cfg.hw) /* * Critical clocks: