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 E7DFD43BDBD; Sat, 1 Aug 2026 11:21:33 +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=1785583296; cv=none; b=okSr5cDYujEWfWpEvPwvDVMx94DVR0FSOl3Ar0N+4KY9g1MlvJzwaUCF3WLcX89wMC8BPK7xDZeTIxp95rWfgbCdxLuwgqd8T23x0z7IJ2kInS6pYW5TqI3VVErNb+aRSZTBtMFI+FLSLQyrus2NuVu0XNWGK/yjAe4Sp6FV5+0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785583296; c=relaxed/simple; bh=7nxjFDvM8+mIB8eYa2kyDbOfy5LmVW0Q4CN2nrB4Rb4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=NQZC8IahoY6FtarEDRVvcVQhKT9YWJ5zDRYl5VqxxokU2DpwuFS9mpwEvASEmEcRQj+xNTum2OVjhPtQW+rCLweGoCWiud3/4qGwqzPgtz7/IRrvizS2irW1aI+3Z5Li0ctk/SxmIpNzIpoYlCsowo8G+u0EbN7hisCc6yssatY= 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=GhAYig3i; 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="GhAYig3i" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1785583292; bh=7nxjFDvM8+mIB8eYa2kyDbOfy5LmVW0Q4CN2nrB4Rb4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=GhAYig3ioBLh4uHunapbqzDg6xuCRQrrZIfABpCdvcgY2i/76/84fuQFRPmI4LXEm YWotlNSyauQXLzXC6VKqSpYvyF+3Dp04BXy6p1Q8MH1ZJ+jEUVkBFAgDFkpRPvxI3q MBytG3Q9L7K4IhN/TNuLw3L2y1i8HzMJCRzQKEhAoaTWYMyEsbFJ0YxhO1F45kyb0s w396QzxwouTVU/8ovnKnrGsuQCyFZVlJ+xqCClzxdhPw68pwydMkBMKrWavH461QsV Pp/JilhBg/a6YmI0tM7vnvb/gpUZi0IjeWX6plIQ75U09fn/MViZmTiAXUtYzzfUYt yXDCrK1qoHe0g== 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 16BC517E094D; Sat, 01 Aug 2026 13:21:31 +0200 (CEST) From: Louis-Alexis Eyraud Date: Sat, 01 Aug 2026 13:21:10 +0200 Subject: [PATCH v5 24/25] clk: mediatek: Add MT8189 scp 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: <20260801-mt8189-clocks-system-base-v5-24-ac4410697cc2@collabora.com> References: <20260801-mt8189-clocks-system-base-v5-0-ac4410697cc2@collabora.com> In-Reply-To: <20260801-mt8189-clocks-system-base-v5-0-ac4410697cc2@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=1785583261; l=5001; i=louisalexis.eyraud@collabora.com; s=20250113; h=from:subject:message-id; bh=7nxjFDvM8+mIB8eYa2kyDbOfy5LmVW0Q4CN2nrB4Rb4=; b=7rzN4CohhAQmWrUgtYgmbh035eErH0dX4q4l4wqD7BUF7Vy+MPrg140bZWxZYfxW3MdAI5ipD tI5xlstSF6ODy2iNKU/tr99jpHpPKxu0NkurmDlij5IYssWXJbQyYSO X-Developer-Key: i=louisalexis.eyraud@collabora.com; a=ed25519; pk=CHFBDB2Kqh4EHc6JIqFn69GhxJJAzc0Zr4e8QxtumuM= Add support for the MT8189 scp clock controller, which provides clock gate control for System Control Processor. 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-scp.c | 77 +++++++++++++++++++++++++++++++++++ 3 files changed, 88 insertions(+) diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig index bba631138b07..919a916f1f4f 100644 --- a/drivers/clk/mediatek/Kconfig +++ b/drivers/clk/mediatek/Kconfig @@ -872,6 +872,16 @@ config COMMON_CLK_MT8189_IIC the MT8189 chipset, improving the overall performance and power efficiency of the device. +config COMMON_CLK_MT8189_SCP + tristate "Clock driver for MediaTek MT8189 scp" + depends on COMMON_CLK_MT8189 + default COMMON_CLK_MT8189 + help + Enable this to support the clock framework for the System Control + Processor (SCP) in the MediaTek MT8189 SoC. This includes clock + management for SCP-related features, ensuring proper clock + distribution and gating for power efficiency and functionality. + 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 bfc075023d9b..a3a93a16b369 100644 --- a/drivers/clk/mediatek/Makefile +++ b/drivers/clk/mediatek/Makefile @@ -129,6 +129,7 @@ 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_MT8189_IIC) += clk-mt8189-iic.o +obj-$(CONFIG_COMMON_CLK_MT8189_SCP) += clk-mt8189-scp.o obj-$(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-scp.c b/drivers/clk/mediatek/clk-mt8189-scp.c new file mode 100644 index 000000000000..75197cd98b52 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8189-scp.c @@ -0,0 +1,77 @@ +// 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 scp_cg_regs = { + .set_ofs = 0x4, + .clr_ofs = 0x8, + .sta_ofs = 0x4, +}; + +#define GATE_SCP(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &scp_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv) + +static const struct mtk_gate scp_clks[] = { + GATE_SCP(CLK_SCP_SET_SPI0, "scp_set_spi0", "clk26m", 0), + GATE_SCP(CLK_SCP_SET_SPI1, "scp_set_spi1", "clk26m", 1), +}; + +static const struct mtk_clk_desc scp_mcd = { + .clks = scp_clks, + .num_clks = ARRAY_SIZE(scp_clks), +}; + +static const struct mtk_gate_regs scp_iic_cg_regs = { + .set_ofs = 0x8, + .clr_ofs = 0x4, + .sta_ofs = 0x0, +}; + +#define GATE_SCP_IIC(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &scp_iic_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv) + +static const struct mtk_gate scp_iic_clks[] = { + GATE_SCP_IIC(CLK_SCP_IIC_I2C0_W1S, "scp_iic_i2c0_w1s", "vlp_scp_iic_sel", 0), + GATE_SCP_IIC(CLK_SCP_IIC_I2C1_W1S, "scp_iic_i2c1_w1s", "vlp_scp_iic_sel", 1), +}; + +static const struct mtk_clk_desc scp_iic_mcd = { + .clks = scp_iic_clks, + .num_clks = ARRAY_SIZE(scp_iic_clks), +}; + +static const struct of_device_id of_match_clk_mt8189_scp[] = { + { .compatible = "mediatek,mt8189-scp-clk", .data = &scp_mcd }, + { .compatible = "mediatek,mt8189-scp-i2c-clk", .data = &scp_iic_mcd }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_clk_mt8189_scp); + +static struct platform_driver clk_mt8189_scp_drv = { + .probe = mtk_clk_simple_probe, + .remove = mtk_clk_simple_remove, + .driver = { + .name = "clk-mt8189-scp", + .of_match_table = of_match_clk_mt8189_scp, + }, +}; +module_platform_driver(clk_mt8189_scp_drv); + +MODULE_DESCRIPTION("MediaTek MT8189 scp clocks driver"); +MODULE_LICENSE("GPL"); -- 2.55.0