From patchwork Mon Mar 28 13:05:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chun-Jie Chen X-Patchwork-Id: 12793536 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 7D6D1C433F5 for ; Mon, 28 Mar 2022 13:05:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242805AbiC1NH0 (ORCPT ); Mon, 28 Mar 2022 09:07:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48756 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242806AbiC1NHY (ORCPT ); Mon, 28 Mar 2022 09:07:24 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 52D5123BCE; Mon, 28 Mar 2022 06:05:42 -0700 (PDT) X-UUID: 3ac59d479ae446d9afef7f0226ea0c8a-20220328 X-UUID: 3ac59d479ae446d9afef7f0226ea0c8a-20220328 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 575780930; Mon, 28 Mar 2022 21:05:36 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Mon, 28 Mar 2022 21:05:35 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 28 Mar 2022 21:05:35 +0800 From: Chun-Jie Chen To: Matthias Brugger , Stephen Boyd , Nicolas Boichat , Rob Herring CC: , , , , , , , Chun-Jie Chen Subject: [PATCH v4 02/15] clk: mediatek: Add MT8186 mcusys clock support Date: Mon, 28 Mar 2022 21:05:08 +0800 Message-ID: <20220328130521.24385-3-chun-jie.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220328130521.24385-1-chun-jie.chen@mediatek.com> References: <20220328130521.24385-1-chun-jie.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Add MT8186 mcusys clock controller which provides muxes to select the clock source of APMCU. Signed-off-by: Chun-Jie Chen Acked-by: AngeloGioacchino Del Regno Reviewed-by: Miles Chen --- drivers/clk/mediatek/Kconfig | 8 ++ drivers/clk/mediatek/Makefile | 1 + drivers/clk/mediatek/clk-mt8186-mcu.c | 108 ++++++++++++++++++++++++++ 3 files changed, 117 insertions(+) create mode 100644 drivers/clk/mediatek/clk-mt8186-mcu.c diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig index 01ef02c54725..d5936cfb3bee 100644 --- a/drivers/clk/mediatek/Kconfig +++ b/drivers/clk/mediatek/Kconfig @@ -512,6 +512,14 @@ config COMMON_CLK_MT8183_VENCSYS help This driver supports MediaTek MT8183 vencsys clocks. +config COMMON_CLK_MT8186 + bool "Clock driver for MediaTek MT8186" + depends on ARM64 || COMPILE_TEST + select COMMON_CLK_MEDIATEK + default ARCH_MEDIATEK + help + This driver supports MediaTek MT8186 clocks. + config COMMON_CLK_MT8192 bool "Clock driver for MediaTek MT8192" depends on ARM64 || COMPILE_TEST diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile index 7b0c2646ce4a..677fa4f0eea2 100644 --- a/drivers/clk/mediatek/Makefile +++ b/drivers/clk/mediatek/Makefile @@ -71,6 +71,7 @@ obj-$(CONFIG_COMMON_CLK_MT8183_MFGCFG) += clk-mt8183-mfgcfg.o obj-$(CONFIG_COMMON_CLK_MT8183_MMSYS) += clk-mt8183-mm.o obj-$(CONFIG_COMMON_CLK_MT8183_VDECSYS) += clk-mt8183-vdec.o obj-$(CONFIG_COMMON_CLK_MT8183_VENCSYS) += clk-mt8183-venc.o +obj-$(CONFIG_COMMON_CLK_MT8186) += clk-mt8186-mcu.o obj-$(CONFIG_COMMON_CLK_MT8192) += clk-mt8192.o obj-$(CONFIG_COMMON_CLK_MT8192_AUDSYS) += clk-mt8192-aud.o obj-$(CONFIG_COMMON_CLK_MT8192_CAMSYS) += clk-mt8192-cam.o diff --git a/drivers/clk/mediatek/clk-mt8186-mcu.c b/drivers/clk/mediatek/clk-mt8186-mcu.c new file mode 100644 index 000000000000..80835960f528 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8186-mcu.c @@ -0,0 +1,108 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Copyright (c) 2022 MediaTek Inc. +// Author: Chun-Jie Chen + +#include +#include +#include + +#include "clk-mtk.h" + +static const char * const mcu_armpll_ll_parents[] = { + "clk26m", + "armpll_ll", + "mainpll", + "univpll_d2" +}; + +static const char * const mcu_armpll_bl_parents[] = { + "clk26m", + "armpll_bl", + "mainpll", + "univpll_d2" +}; + +static const char * const mcu_armpll_bus_parents[] = { + "clk26m", + "ccipll", + "mainpll", + "univpll_d2" +}; + +/* + * We only configure the CPU muxes when adjust CPU frequency in MediaTek CPUFreq Driver. + * Other fields like divider always keep the same value. (set once in bootloader) + */ +static struct mtk_composite mcu_muxes[] = { + /* CPU_PLLDIV_CFG0 */ + MUX(CLK_MCU_ARMPLL_LL_SEL, "mcu_armpll_ll_sel", mcu_armpll_ll_parents, 0x2A0, 9, 2), + /* CPU_PLLDIV_CFG1 */ + MUX(CLK_MCU_ARMPLL_BL_SEL, "mcu_armpll_bl_sel", mcu_armpll_bl_parents, 0x2A4, 9, 2), + /* BUS_PLLDIV_CFG */ + MUX(CLK_MCU_ARMPLL_BUS_SEL, "mcu_armpll_bus_sel", mcu_armpll_bus_parents, 0x2E0, 9, 2), +}; + +static const struct of_device_id of_match_clk_mt8186_mcu[] = { + { .compatible = "mediatek,mt8186-mcusys", }, + {} +}; + +static int clk_mt8186_mcu_probe(struct platform_device *pdev) +{ + struct clk_onecell_data *clk_data; + struct device_node *node = pdev->dev.of_node; + int r; + void __iomem *base; + + clk_data = mtk_alloc_clk_data(CLK_MCU_NR_CLK); + if (!clk_data) + return -ENOMEM; + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) { + r = PTR_ERR(base); + goto free_mcu_data; + } + + r = mtk_clk_register_composites(mcu_muxes, ARRAY_SIZE(mcu_muxes), base, + NULL, clk_data); + if (r) + goto free_mcu_data; + + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + if (r) + goto unregister_composite_muxes; + + platform_set_drvdata(pdev, clk_data); + + return r; + +unregister_composite_muxes: + mtk_clk_unregister_composites(mcu_muxes, ARRAY_SIZE(mcu_muxes), clk_data); +free_mcu_data: + mtk_free_clk_data(clk_data); + return r; +} + +static int clk_mt8186_mcu_remove(struct platform_device *pdev) +{ + struct clk_onecell_data *clk_data = platform_get_drvdata(pdev); + struct device_node *node = pdev->dev.of_node; + + of_clk_del_provider(node); + mtk_clk_unregister_composites(mcu_muxes, ARRAY_SIZE(mcu_muxes), clk_data); + mtk_free_clk_data(clk_data); + + return 0; +} + +static struct platform_driver clk_mt8186_mcu_drv = { + .probe = clk_mt8186_mcu_probe, + .remove = clk_mt8186_mcu_remove, + .driver = { + .name = "clk-mt8186-mcu", + .of_match_table = of_match_clk_mt8186_mcu, + }, +}; +builtin_platform_driver(clk_mt8186_mcu_drv);