From patchwork Fri Mar 31 08:34:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 13195446 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 6B5FEC77B60 for ; Fri, 31 Mar 2023 08:35:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230304AbjCaIfH (ORCPT ); Fri, 31 Mar 2023 04:35:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56474 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231293AbjCaIe6 (ORCPT ); Fri, 31 Mar 2023 04:34:58 -0400 Received: from mail-wr1-x42d.google.com (mail-wr1-x42d.google.com [IPv6:2a00:1450:4864:20::42d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6BCE81C1EC for ; Fri, 31 Mar 2023 01:34:52 -0700 (PDT) Received: by mail-wr1-x42d.google.com with SMTP id e18so21583395wra.9 for ; Fri, 31 Mar 2023 01:34:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1680251691; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=xHB6iDThXcrHPiUZPbOms1jUqgGK29VYjf8IjMfRyFw=; b=OU1zLuH7o+NOr2m6B7SrO4o0iHam3EmzoXHKLsgK9BYloCMtfK/nowyatORufCCuN1 0S2YS1Jf8IdII/0kL6aZikOCpl4gPmJusga/jGIu5RJTCZQSnPRu0bT6l47T3zz10RP6 McxdVUz7aOeaWEmmB93vHrWKRqDR0V4G8KIQheRtjvbxfjYUC7p1Tr/gQJhUqodf9UbX cfPIB4b7qt3CGsKHc7troZnh6xgZkYMWXzKDJwnMrJ6hhKvoxgQ/Hhd3Wgg51BPEfzhN yPMp3R5Ti2h1FWChvDvtH7XyexKUL1drTYJ0fwNaM4djZfI2kHkDr7Fn1XDVvEJpp7zv vtFg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680251691; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=xHB6iDThXcrHPiUZPbOms1jUqgGK29VYjf8IjMfRyFw=; b=lahWM0QNLquN2DnPVewWyTkstW96YgI7+dTlu1Xam+dpekO/7zXZDccuQwB4eCYL5h HtX3z2svSmsntWTC7cnQ/raAVuG9LX6fNOl0UiaIq4IsbUvhMm/PTjM1pG7xvvxBo9sa Ch41CVt+V9BUe2dgBA5ggLeJUnwx+kKHIFz9qslTsXnrDdk9GFo0Cp+zYX9xv9F+/DPY n2xO+Fc/gyZplVAGrQBjgFbqXUtubrSvnxSeK98VDKUYUIYAghIktpvEjE8xj8OulZoX hVmJ+aeu6h79eZrBjBnvvgauCblgUynlngg3PVn+Ql8jSdcQMSxBNqgrM1opzpYCW66K jEuA== X-Gm-Message-State: AAQBX9cNvvL/nxbuahGE661KSmmgeMChf95chaK28156JglErhpWL57g VLlKurz2+USR8KryDLkOwwfvMQ== X-Google-Smtp-Source: AKy350YZVgjYN18xwfhWJYe5j5yka9+JqQ6bvN6apomApI+PZnxn/a2kxojIM0PPJc8qiiYSR2kMoA== X-Received: by 2002:a5d:5411:0:b0:2c7:a9ec:3 with SMTP id g17-20020a5d5411000000b002c7a9ec0003mr21286471wrv.65.1680251691044; Fri, 31 Mar 2023 01:34:51 -0700 (PDT) Received: from arrakeen.starnux.net ([2a01:e0a:982:cbb0:8261:5fff:fe11:bdda]) by smtp.gmail.com with ESMTPSA id e11-20020a5d4e8b000000b002cde626cd96sm1563153wru.65.2023.03.31.01.34.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 31 Mar 2023 01:34:50 -0700 (PDT) From: Neil Armstrong Date: Fri, 31 Mar 2023 10:34:43 +0200 Subject: [PATCH RFC 05/20] clk: oxnas: remove obsolete clock driver MIME-Version: 1.0 Message-Id: <20230331-topic-oxnas-upstream-remove-v1-5-5bd58fd1dd1f@linaro.org> References: <20230331-topic-oxnas-upstream-remove-v1-0-5bd58fd1dd1f@linaro.org> In-Reply-To: <20230331-topic-oxnas-upstream-remove-v1-0-5bd58fd1dd1f@linaro.org> To: Arnd Bergmann , Olof Johansson , soc@kernel.org, Rob Herring , Krzysztof Kozlowski , Russell King , Michael Turquette , Stephen Boyd , Daniel Lezcano , Thomas Gleixner , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Linus Walleij , Bartosz Golaszewski , Sebastian Reichel , Philipp Zabel , Marc Zyngier Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, Neil Armstrong X-Mailer: b4 0.12.1 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-State: RFC Due to lack of maintainance and stall of development for a few years now, and since no new features will ever be added upstream, remove support for OX810 and OX820 clock driver. Signed-off-by: Neil Armstrong --- drivers/clk/Kconfig | 7 -- drivers/clk/Makefile | 1 - drivers/clk/clk-oxnas.c | 251 ------------------------------------------------ 3 files changed, 259 deletions(-) diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index b6c5bf69a2b2..7ac31d00f03a 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -351,13 +351,6 @@ config COMMON_CLK_PXA help Support for the Marvell PXA SoC. -config COMMON_CLK_OXNAS - bool "Clock driver for the OXNAS SoC Family" - depends on ARCH_OXNAS || COMPILE_TEST - select MFD_SYSCON - help - Support for the OXNAS SoC Family clocks. - config COMMON_CLK_RS9_PCIE tristate "Clock driver for Renesas 9-series PCIe clock generators" depends on I2C diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index e3ca0d058a25..fea32d60f1d9 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -50,7 +50,6 @@ obj-$(CONFIG_ARCH_MOXART) += clk-moxart.o obj-$(CONFIG_ARCH_NOMADIK) += clk-nomadik.o obj-$(CONFIG_ARCH_NPCM7XX) += clk-npcm7xx.o obj-$(CONFIG_ARCH_NSPIRE) += clk-nspire.o -obj-$(CONFIG_COMMON_CLK_OXNAS) += clk-oxnas.o obj-$(CONFIG_COMMON_CLK_PALMAS) += clk-palmas.o obj-$(CONFIG_CLK_LS1028A_PLLDIG) += clk-plldig.o obj-$(CONFIG_COMMON_CLK_PWM) += clk-pwm.o diff --git a/drivers/clk/clk-oxnas.c b/drivers/clk/clk-oxnas.c deleted file mode 100644 index 584e293156ad..000000000000 --- a/drivers/clk/clk-oxnas.c +++ /dev/null @@ -1,251 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 2010 Broadcom - * Copyright (C) 2012 Stephen Warren - * Copyright (C) 2016 Neil Armstrong - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -/* Standard regmap gate clocks */ -struct clk_oxnas_gate { - struct clk_hw hw; - unsigned int bit; - struct regmap *regmap; -}; - -struct oxnas_stdclk_data { - struct clk_hw_onecell_data *onecell_data; - struct clk_oxnas_gate **gates; - unsigned int ngates; - struct clk_oxnas_pll **plls; - unsigned int nplls; -}; - -/* Regmap offsets */ -#define CLK_STAT_REGOFFSET 0x24 -#define CLK_SET_REGOFFSET 0x2c -#define CLK_CLR_REGOFFSET 0x30 - -static inline struct clk_oxnas_gate *to_clk_oxnas_gate(struct clk_hw *hw) -{ - return container_of(hw, struct clk_oxnas_gate, hw); -} - -static int oxnas_clk_gate_is_enabled(struct clk_hw *hw) -{ - struct clk_oxnas_gate *std = to_clk_oxnas_gate(hw); - int ret; - unsigned int val; - - ret = regmap_read(std->regmap, CLK_STAT_REGOFFSET, &val); - if (ret < 0) - return ret; - - return val & BIT(std->bit); -} - -static int oxnas_clk_gate_enable(struct clk_hw *hw) -{ - struct clk_oxnas_gate *std = to_clk_oxnas_gate(hw); - - regmap_write(std->regmap, CLK_SET_REGOFFSET, BIT(std->bit)); - - return 0; -} - -static void oxnas_clk_gate_disable(struct clk_hw *hw) -{ - struct clk_oxnas_gate *std = to_clk_oxnas_gate(hw); - - regmap_write(std->regmap, CLK_CLR_REGOFFSET, BIT(std->bit)); -} - -static const struct clk_ops oxnas_clk_gate_ops = { - .enable = oxnas_clk_gate_enable, - .disable = oxnas_clk_gate_disable, - .is_enabled = oxnas_clk_gate_is_enabled, -}; - -static const char *const osc_parents[] = { - "oscillator", -}; - -static const char *const eth_parents[] = { - "gmacclk", -}; - -#define OXNAS_GATE(_name, _bit, _parents) \ -struct clk_oxnas_gate _name = { \ - .bit = (_bit), \ - .hw.init = &(struct clk_init_data) { \ - .name = #_name, \ - .ops = &oxnas_clk_gate_ops, \ - .parent_names = _parents, \ - .num_parents = ARRAY_SIZE(_parents), \ - .flags = (CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED), \ - }, \ -} - -static OXNAS_GATE(ox810se_leon, 0, osc_parents); -static OXNAS_GATE(ox810se_dma_sgdma, 1, osc_parents); -static OXNAS_GATE(ox810se_cipher, 2, osc_parents); -static OXNAS_GATE(ox810se_sata, 4, osc_parents); -static OXNAS_GATE(ox810se_audio, 5, osc_parents); -static OXNAS_GATE(ox810se_usbmph, 6, osc_parents); -static OXNAS_GATE(ox810se_etha, 7, eth_parents); -static OXNAS_GATE(ox810se_pciea, 8, osc_parents); -static OXNAS_GATE(ox810se_nand, 9, osc_parents); - -static struct clk_oxnas_gate *ox810se_gates[] = { - &ox810se_leon, - &ox810se_dma_sgdma, - &ox810se_cipher, - &ox810se_sata, - &ox810se_audio, - &ox810se_usbmph, - &ox810se_etha, - &ox810se_pciea, - &ox810se_nand, -}; - -static OXNAS_GATE(ox820_leon, 0, osc_parents); -static OXNAS_GATE(ox820_dma_sgdma, 1, osc_parents); -static OXNAS_GATE(ox820_cipher, 2, osc_parents); -static OXNAS_GATE(ox820_sd, 3, osc_parents); -static OXNAS_GATE(ox820_sata, 4, osc_parents); -static OXNAS_GATE(ox820_audio, 5, osc_parents); -static OXNAS_GATE(ox820_usbmph, 6, osc_parents); -static OXNAS_GATE(ox820_etha, 7, eth_parents); -static OXNAS_GATE(ox820_pciea, 8, osc_parents); -static OXNAS_GATE(ox820_nand, 9, osc_parents); -static OXNAS_GATE(ox820_ethb, 10, eth_parents); -static OXNAS_GATE(ox820_pcieb, 11, osc_parents); -static OXNAS_GATE(ox820_ref600, 12, osc_parents); -static OXNAS_GATE(ox820_usbdev, 13, osc_parents); - -static struct clk_oxnas_gate *ox820_gates[] = { - &ox820_leon, - &ox820_dma_sgdma, - &ox820_cipher, - &ox820_sd, - &ox820_sata, - &ox820_audio, - &ox820_usbmph, - &ox820_etha, - &ox820_pciea, - &ox820_nand, - &ox820_etha, - &ox820_pciea, - &ox820_ref600, - &ox820_usbdev, -}; - -static struct clk_hw_onecell_data ox810se_hw_onecell_data = { - .hws = { - [CLK_810_LEON] = &ox810se_leon.hw, - [CLK_810_DMA_SGDMA] = &ox810se_dma_sgdma.hw, - [CLK_810_CIPHER] = &ox810se_cipher.hw, - [CLK_810_SATA] = &ox810se_sata.hw, - [CLK_810_AUDIO] = &ox810se_audio.hw, - [CLK_810_USBMPH] = &ox810se_usbmph.hw, - [CLK_810_ETHA] = &ox810se_etha.hw, - [CLK_810_PCIEA] = &ox810se_pciea.hw, - [CLK_810_NAND] = &ox810se_nand.hw, - }, - .num = ARRAY_SIZE(ox810se_gates), -}; - -static struct clk_hw_onecell_data ox820_hw_onecell_data = { - .hws = { - [CLK_820_LEON] = &ox820_leon.hw, - [CLK_820_DMA_SGDMA] = &ox820_dma_sgdma.hw, - [CLK_820_CIPHER] = &ox820_cipher.hw, - [CLK_820_SD] = &ox820_sd.hw, - [CLK_820_SATA] = &ox820_sata.hw, - [CLK_820_AUDIO] = &ox820_audio.hw, - [CLK_820_USBMPH] = &ox820_usbmph.hw, - [CLK_820_ETHA] = &ox820_etha.hw, - [CLK_820_PCIEA] = &ox820_pciea.hw, - [CLK_820_NAND] = &ox820_nand.hw, - [CLK_820_ETHB] = &ox820_ethb.hw, - [CLK_820_PCIEB] = &ox820_pcieb.hw, - [CLK_820_REF600] = &ox820_ref600.hw, - [CLK_820_USBDEV] = &ox820_usbdev.hw, - }, - .num = ARRAY_SIZE(ox820_gates), -}; - -static struct oxnas_stdclk_data ox810se_stdclk_data = { - .onecell_data = &ox810se_hw_onecell_data, - .gates = ox810se_gates, - .ngates = ARRAY_SIZE(ox810se_gates), -}; - -static struct oxnas_stdclk_data ox820_stdclk_data = { - .onecell_data = &ox820_hw_onecell_data, - .gates = ox820_gates, - .ngates = ARRAY_SIZE(ox820_gates), -}; - -static const struct of_device_id oxnas_stdclk_dt_ids[] = { - { .compatible = "oxsemi,ox810se-stdclk", &ox810se_stdclk_data }, - { .compatible = "oxsemi,ox820-stdclk", &ox820_stdclk_data }, - { } -}; - -static int oxnas_stdclk_probe(struct platform_device *pdev) -{ - struct device_node *np = pdev->dev.of_node, *parent_np; - const struct oxnas_stdclk_data *data; - struct regmap *regmap; - int ret; - int i; - - data = of_device_get_match_data(&pdev->dev); - - parent_np = of_get_parent(np); - regmap = syscon_node_to_regmap(parent_np); - of_node_put(parent_np); - if (IS_ERR(regmap)) { - dev_err(&pdev->dev, "failed to have parent regmap\n"); - return PTR_ERR(regmap); - } - - for (i = 0 ; i < data->ngates ; ++i) - data->gates[i]->regmap = regmap; - - for (i = 0; i < data->onecell_data->num; i++) { - if (!data->onecell_data->hws[i]) - continue; - - ret = devm_clk_hw_register(&pdev->dev, - data->onecell_data->hws[i]); - if (ret) - return ret; - } - - return of_clk_add_hw_provider(np, of_clk_hw_onecell_get, - data->onecell_data); -} - -static struct platform_driver oxnas_stdclk_driver = { - .probe = oxnas_stdclk_probe, - .driver = { - .name = "oxnas-stdclk", - .suppress_bind_attrs = true, - .of_match_table = oxnas_stdclk_dt_ids, - }, -}; -builtin_platform_driver(oxnas_stdclk_driver);