From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 73D5C473C6B; Wed, 29 Jul 2026 10:03:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785319417; cv=none; b=PfvtD4hcK4xnevUWbPaVEnLoP+8ijeDmTmDGysCsZqV4NGJjmrdsYSsSEkQ9aoWir6Y5Pqddu/uZUwkQzSBWLreXskxsMmuzHm6aE8ctzug0F/MWNJ8KzVUmFq+of6TANHfxivH0CZlb4oQd/lTbbJRGNe7WJy05dLxxUBrBe1k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785319417; c=relaxed/simple; bh=/FLn2DEgBy/c1f8A7XQpvscRwWNAHYOICbBCj3T6JDo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=OvV9EpGCC9Cac349e+0/v/tSYv0dcn45pcZVArE8tIH+g2UOSI8coitUcm+CW1QefbxJ4PIX09JtjBfpAdvzFKdKGsuU4fd14lT8srFk2fF82MVbubBs7i/QWnCXg2s6oVWdUDTS7wxTSTbYmyipocLaVxno4kIQa+s8nmRr+JA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=AXey7Fv3; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="AXey7Fv3" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1785319413; bh=/FLn2DEgBy/c1f8A7XQpvscRwWNAHYOICbBCj3T6JDo=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=AXey7Fv3itL2k4Zmdtq53nQXHGjk5ZgAVt2TMCXMYbDsYiSSG6FhVK5PDoyjyiWXu g0CLqz95xFnaWkXVHggJPc/VGFbsodDZc16cTsOp0GmK/KdHVCQOZfyADLyFy+pMxs m6LhMMgrp2UQrz9bfw6WEMIgWqvc+6Eu3jBFYTGVaw3R9LaAe7xXkqnQyU8ePCwCOU r+hfsc5+fHsHKl0PqmNCiSs06dCcV9UyaXzdwcI9CKkhRQbTkf9S7cHE+FRPkH9Z8t iUUzsDWGFwd5Vm8mFjxK6DCbuve33/Q3XWUPjmwCRTDyum3s81YsR/0aSvopGqdxHa EKCDCvafyK3wg== 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 C755817E08A2; Wed, 29 Jul 2026 12:03:32 +0200 (CEST) From: Louis-Alexis Eyraud Date: Wed, 29 Jul 2026 12:03:04 +0200 Subject: [PATCH v4 20/24] clk: mediatek: Add MT8189 dbgao clock support Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260729-mt8189-clocks-system-base-v4-20-e356b813a64c@collabora.com> References: <20260729-mt8189-clocks-system-base-v4-0-e356b813a64c@collabora.com> In-Reply-To: <20260729-mt8189-clocks-system-base-v4-0-e356b813a64c@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 , Chen-Yu Tsai 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=1785319388; l=5596; i=louisalexis.eyraud@collabora.com; s=20250113; h=from:subject:message-id; bh=/FLn2DEgBy/c1f8A7XQpvscRwWNAHYOICbBCj3T6JDo=; b=fVCQwHTnh8uqVQdLt2/fLsdsbcEJzyhSeVcfzkL5+cELSVou7b198EViVbrzrlXbXldxEgw5H R/CnH/rHmzwDLKArVxA/W1ADKlu4r6iH2J4X+/e+QF79d1CzObxnV3v X-Developer-Key: i=louisalexis.eyraud@collabora.com; a=ed25519; pk=CHFBDB2Kqh4EHc6JIqFn69GhxJJAzc0Zr4e8QxtumuM= Add support for the MT8189 dbgao clock controller, which provides clock gate control for debug-system. 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-dbgao.c | 98 +++++++++++++++++++++++++++++++++ 3 files changed, 109 insertions(+) diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig index 8eba45f05968..635b0109ec07 100644 --- a/drivers/clk/mediatek/Kconfig +++ b/drivers/clk/mediatek/Kconfig @@ -839,6 +839,16 @@ config COMMON_CLK_MT8189_BUS MT8189 chipset, ensuring that all bus-related components receive the correct clock signals for optimal performance. +config COMMON_CLK_MT8189_DBGAO + tristate "Clock driver for MediaTek MT8189 debug ao" + depends on COMMON_CLK_MT8189 + default COMMON_CLK_MT8189 + help + Enable this to support the clock management for the debug function + on MediaTek MT8189 SoCs. This includes enabling and disabling + 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_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 aabfb42cb1b2..6ab6df7ebf2a 100644 --- a/drivers/clk/mediatek/Makefile +++ b/drivers/clk/mediatek/Makefile @@ -126,6 +126,7 @@ obj-$(CONFIG_COMMON_CLK_MT8188_WPESYS) += clk-mt8188-wpe.o obj-$(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-$(CONFIG_COMMON_CLK_MT8192) += clk-mt8192-apmixedsys.o clk-mt8192.o obj-$(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-dbgao.c b/drivers/clk/mediatek/clk-mt8189-dbgao.c new file mode 100644 index 000000000000..40307bdc93eb --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8189-dbgao.c @@ -0,0 +1,98 @@ +// 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 dbgao_cg_regs = { + .set_ofs = 0x70, + .clr_ofs = 0x70, + .sta_ofs = 0x70, +}; + +#define GATE_DBGAO(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &dbgao_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) + +static const struct mtk_gate dbgao_clks[] = { + GATE_DBGAO(CLK_DBGAO_ATB_EN, "dbgao_atb_en", "atb_sel", 0), +}; + +static const struct mtk_clk_desc dbgao_mcd = { + .clks = dbgao_clks, + .num_clks = ARRAY_SIZE(dbgao_clks), +}; + +static const struct mtk_gate_regs dem0_cg_regs = { + .set_ofs = 0x2c, + .clr_ofs = 0x2c, + .sta_ofs = 0x2c, +}; + +static const struct mtk_gate_regs dem1_cg_regs = { + .set_ofs = 0x30, + .clr_ofs = 0x30, + .sta_ofs = 0x30, +}; + +static const struct mtk_gate_regs dem2_cg_regs = { + .set_ofs = 0x70, + .clr_ofs = 0x70, + .sta_ofs = 0x70, +}; + +#define GATE_DEM0(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &dem0_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) + +#define GATE_DEM1(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &dem1_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) + +#define GATE_DEM2(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &dem2_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) + +static const struct mtk_gate dem_clks[] = { + /* DEM0 */ + GATE_DEM0(CLK_DEM_BUSCLK_EN, "dem_busclk_en", "axi_sel", 0), + /* DEM1 */ + GATE_DEM1(CLK_DEM_SYSCLK_EN, "dem_sysclk_en", "axi_sel", 0), + /* DEM2 */ + GATE_DEM2(CLK_DEM_ATB_EN, "dem_atb_en", "atb_sel", 0), +}; + +static const struct mtk_clk_desc dem_mcd = { + .clks = dem_clks, + .num_clks = ARRAY_SIZE(dem_clks), +}; + +static const struct of_device_id of_match_clk_mt8189_dbgao[] = { + { .compatible = "mediatek,mt8189-dbg-ao", .data = &dbgao_mcd }, + { .compatible = "mediatek,mt8189-dem", .data = &dem_mcd }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_clk_mt8189_dbgao); + +static struct platform_driver clk_mt8189_dbgao_drv = { + .probe = mtk_clk_simple_probe, + .remove = mtk_clk_simple_remove, + .driver = { + .name = "clk-mt8189-dbgao", + .of_match_table = of_match_clk_mt8189_dbgao, + }, +}; +module_platform_driver(clk_mt8189_dbgao_drv); + +MODULE_DESCRIPTION("MediaTek MT8189 dbgao system clocks driver"); +MODULE_LICENSE("GPL"); -- 2.55.0