From mboxrd@z Thu Jan 1 00:00:00 1970 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 D94DFC4450B for ; Thu, 9 Jul 2026 13:43:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=CavFiKSwUhGNGqn+cczlrzOrn0/LpIKMvM53+AdO948=; b=nxhKohXWU2Eif+n8bQOytKkg8x 7aPzB/rVZxv4MnCAYBrsvdq6Q9Gum2XL1W7/oBJK9tSKZ+bpU4TfBI6ghoGnFSUUyGJ5FNRzILRxc 8kY+yJp02hMS2duYy14nnvu8PVqS5duLDIh01It/EJkOLnyRHVC9fYOcG3O0zJkCQMZdKj/KIiqh9 HalJ+HLeQK1dLSxLrhN3Gze4/cz/W36BFPoXdXqLNthmvEMzmQf1xps5mfMFDhToBEpUQoiApvv8u mM3BA5m+i7vcKj54DcNtbmmrOgnFKCbf/f+FgK9hNE4m79gUT3s6plA/psLAx2WMCeVZHzjXJ5Sf1 JyxSv52g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1whp2G-00000002bTX-0khN; Thu, 09 Jul 2026 13:43:28 +0000 Received: from bali.collaboradmins.com ([2a01:4f8:201:9162::2]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1whp25-00000002b6e-3Kwd; Thu, 09 Jul 2026 13:43:21 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1783604594; bh=n9wUOpobDjDzuRSQD9VUQ/Ag4R9g26eowejTg9uByGA=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=UNO41fIapEU036wJQ5L4rzcqZdzsv3wB/z/Hke5/Dq+tstTyYbYQtAKWRKRsrkuKi STfFs7wgmQCsgRTpF+AQGxPtNUCojaCzoWLYZv31udrv1LPDBWzegcSfoSZmcIoB7C NXqktd9KPRfkt+5iVaB5Ohn82xJoWi+b4uLx9B9GXD1twNBZ8n6XvwL0pHPYCOR+0Q PA+yGsdRLvZAM819IqobfhBRgQd1Emfj+ihDKQdZqg9OfGLKKMMyzJfgGkjQ6onzdJ WL/UXbjjjM7YKLLs8btcw9kir6TP+P572BSCRKhtDMv8QdSKNHaQutj00pS7GZURQy GSAj2YxGyh2sA== Received: from yukiji.home (unknown [100.64.0.131]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: laeyraud) by bali.collaboradmins.com (Postfix) with ESMTPSA id 1C86D17E0DFB; Thu, 09 Jul 2026 15:43:13 +0200 (CEST) From: Louis-Alexis Eyraud Date: Thu, 09 Jul 2026 15:42:55 +0200 Subject: [PATCH v2 15/18] clk: mediatek: Add MT8189 dvfsrc clock support MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260709-mt8189-clocks-system-base-v2-15-2926da3db6cf@collabora.com> References: <20260709-mt8189-clocks-system-base-v2-0-2926da3db6cf@collabora.com> In-Reply-To: <20260709-mt8189-clocks-system-base-v2-0-2926da3db6cf@collabora.com> To: Michael Turquette , Stephen Boyd , Brian Masney , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Chun-Jie Chen , Philipp Zabel , Edward-JW Yang , Richard Cochran Cc: kernel@collabora.com, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, netdev@vger.kernel.org, Irving-CH Lin , Louis-Alexis Eyraud X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1783604575; l=4468; i=louisalexis.eyraud@collabora.com; s=20250113; h=from:subject:message-id; bh=n9wUOpobDjDzuRSQD9VUQ/Ag4R9g26eowejTg9uByGA=; b=NbjrGeRay0bb8sDeOYK8PTOGuVpF9gp6ppmQz775ib9qpOzZ5Tb6sHMjXM83/EORoO3T3YrnB CfqpxEEQG2SBa+i7altXGb9u3gx5WC6xyyroBTF2femKUSnXPdl3H/A X-Developer-Key: i=louisalexis.eyraud@collabora.com; a=ed25519; pk=CHFBDB2Kqh4EHc6JIqFn69GhxJJAzc0Zr4e8QxtumuM= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260709_064318_767790_C4D96BB0 X-CRM114-Status: GOOD ( 17.28 ) X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add support for the MT8189 dvfsrc clock controller, which provides clock gate control for dram dvfs. Co-developed-by: Irving-CH Lin Signed-off-by: Irving-CH Lin Co-developed-by: AngeloGioacchino Del Regno Signed-off-by: AngeloGioacchino Del Regno Signed-off-by: Louis-Alexis Eyraud --- drivers/clk/mediatek/Kconfig | 10 ++++++ drivers/clk/mediatek/Makefile | 1 + drivers/clk/mediatek/clk-mt8189-dvfsrc.c | 58 ++++++++++++++++++++++++++++++++ 3 files changed, 69 insertions(+) diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig index 635b0109ec07..245d3b83b5d3 100644 --- a/drivers/clk/mediatek/Kconfig +++ b/drivers/clk/mediatek/Kconfig @@ -849,6 +849,16 @@ config COMMON_CLK_MT8189_DBGAO vcore debug system clocks. If you want to control its clocks, say Y or M to include this driver in your kernel build. +config COMMON_CLK_MT8189_DVFSRC + tristate "Clock driver for MediaTek MT8189 dvfsrc" + depends on COMMON_CLK_MT8189 + default COMMON_CLK_MT8189 + help + Enable this to support the clock management for the dvfsrc + on MediaTek MT8189 SoCs. This includes enabling and disabling + vcore dvfs clocks. If you want to control its clocks, say Y or M + to include this driver in your kernel build. + config COMMON_CLK_MT8192 tristate "Clock driver for MediaTek MT8192" depends on ARM64 || COMPILE_TEST diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile index 6ab6df7ebf2a..4dbfc9ac83ba 100644 --- a/drivers/clk/mediatek/Makefile +++ b/drivers/clk/mediatek/Makefile @@ -127,6 +127,7 @@ obj-$(CONFIG_COMMON_CLK_MT8189) += clk-mt8189-apmixedsys.o clk-mt8189-topckgen.o clk-mt8189-vlpckgen.o clk-mt8189-vlpcfg.o obj-$(CONFIG_COMMON_CLK_MT8189_BUS) += clk-mt8189-bus.o obj-$(CONFIG_COMMON_CLK_MT8189_DBGAO) += clk-mt8189-dbgao.o +obj-$(CONFIG_COMMON_CLK_MT8189_DVFSRC) += clk-mt8189-dvfsrc.o obj-$(CONFIG_COMMON_CLK_MT8192) += clk-mt8192-apmixedsys.o clk-mt8192.o obj-$(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-mt8189-dvfsrc.c b/drivers/clk/mediatek/clk-mt8189-dvfsrc.c new file mode 100644 index 000000000000..37b81dc0b882 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8189-dvfsrc.c @@ -0,0 +1,58 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2025-2026 MediaTek Inc. + * Qiqi Wang + * Irving-CH Lin + * Copyright (C) 2026 Collabora Ltd. + * AngeloGioacchino Del Regno + * Louis-Alexis Eyraud + */ + +#include +#include +#include +#include + +#include "clk-mtk.h" +#include "clk-gate.h" + +#include + +static const struct mtk_gate_regs dvfsrc_top_cg_regs = { + .set_ofs = 0x0, + .clr_ofs = 0x0, + .sta_ofs = 0x0, +}; + +#define GATE_DVFSRC_TOP_FLAGS(_id, _name, _parent, _shift, _flags) \ + GATE_MTK_FLAGS(_id, _name, _parent, &dvfsrc_top_cg_regs, _shift, \ + &mtk_clk_gate_ops_no_setclr_inv, _flags) + +static const struct mtk_gate dvfsrc_top_clks[] = { + GATE_DVFSRC_TOP_FLAGS(CLK_DVFSRC_TOP_DVFSRC_EN, "dvfsrc_dvfsrc_en", + "clk26m", 0, CLK_IS_CRITICAL), +}; + +static const struct mtk_clk_desc dvfsrc_top_mcd = { + .clks = dvfsrc_top_clks, + .num_clks = ARRAY_SIZE(dvfsrc_top_clks), +}; + +static const struct of_device_id of_match_clk_mt8189_dvfsrc[] = { + { .compatible = "mediatek,mt8189-dvfsrc-top", .data = &dvfsrc_top_mcd }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_clk_mt8189_dvfsrc); + +static struct platform_driver clk_mt8189_dvfsrc_drv = { + .probe = mtk_clk_simple_probe, + .remove = mtk_clk_simple_remove, + .driver = { + .name = "clk-mt8189-dvfsrc", + .of_match_table = of_match_clk_mt8189_dvfsrc, + }, +}; +module_platform_driver(clk_mt8189_dvfsrc_drv); + +MODULE_DESCRIPTION("MediaTek MT8189 dvfsrc clocks driver"); +MODULE_LICENSE("GPL"); -- 2.55.0