From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chuan Liu Subject: [PATCH 00/13] clk: amlogic: Introduce A9 PLL and CCU driver support Date: Mon, 09 Feb 2026 13:48:46 +0800 Message-Id: <20260209-a9_clock_driver-v1-0-a9198dc03d2a@amlogic.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAD51iWkC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDQ2MD3UTL+OSc/OTs+JSizLLUIt2UlBRLA2NTcwsTi2QloK6CotS0zAq widGxtbUA4Ft7hWEAAAA= To: Neil Armstrong , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-amlogic@lists.infradead.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Chuan Liu X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1770616142; l=3749; i=chuan.liu@amlogic.com; s=20240902; h=from:subject:message-id; bh=ebLbpj1aW+Kz/xR5J14ie4MaN19ZepOR5F1hDJBpNPo=; b=lzoDOte3b+xv8Lht85pzHNT4bc9SCKzSJHu3j0g+C54rxft4OKN9wVoNSGsq/aF0aeGhuWILt HJSKa4eJLVkAudSDfO5EnhD0iLLehuVlS/aMg3Z+WdGdcWiSCsCcqap X-Developer-Key: i=chuan.liu@amlogic.com; a=ed25519; pk=fnKDB+81SoWGKW2GJNFkKy/ULvsDmJZRGBE7pR5Xcpo= X-Endpoint-Received: by B4 Relay for chuan.liu@amlogic.com/20240902 with auth_id=203 List-Id: B4 Relay Submissions This patch adds driver support for Phase-Locked Loop (PLL) controllers and Clock Control Units (CCUs) in A9 SoC family. In the A9 SoC architecture, PLLs and clock control units are implemented as standardized hardware instances to reduce unnecessary differentiation across individual units. All A9 PLLs and CCUs are exposed as device tree nodes, providing an accurate representation of the SoC's internal clock hardware structure. These drivers are designed for reuse in subsequent SoC generations, guaranteeing code inheritance and maximizing reusability. Makefile rules compile A9 PLL and CCU drivers into clk-amlogic.o (see drivers/clk/amlogic/Makefile), simplifying deployment and enhancing load efficiency (single insmod for kernel module). Since the foundational A9 DTS hasn't been upstreamed yet, I'm temporarily pushing the PLL/CCU DTS files to github for driver comprehension [1]. These patches will be included in a later release after the base A9 DTS is merged. [1] https://github.com/torvalds/linux/commit/d6a82e4cce675fa5146c5f638c2a926c1c8cb1d9 Signed-off-by: Chuan Liu --- Chuan Liu (13): dt-bindings: clock: Add Amlogic A9 standardized model clock control units dt-bindings: clock: Add Amlogic A9 PLL controllers dt-bindings: clock: Add Amlogic A9 misc clock control units clk: amlogic: Add basic clock driver clk: amlogic: Add composite clock driver clk: amlogic: Add noglitch clock driver clk: amlogic: Add duandiv clock driver clk: amlogic: Add PLL driver clk: amlogic: Add DT-based clock registration functions clk: amlogic: Add A9 standardized model clock control units driver clk: amlogic: Add A9 PLL controllers driver clk: amlogic: Add A9 misc clock control units driver clk: amlogic: Add support for building as combined kernel module .../bindings/clock/amlogic,a9-misc-ccu.yaml | 523 +++++++++++ .../bindings/clock/amlogic,a9-model-ccu.yaml | 435 +++++++++ .../devicetree/bindings/clock/amlogic,a9-pll.yaml | 134 +++ drivers/clk/Kconfig | 1 + drivers/clk/Makefile | 1 + drivers/clk/amlogic/Kconfig | 52 ++ drivers/clk/amlogic/Makefile | 23 + drivers/clk/amlogic/a9-misc-ccu.c | 970 +++++++++++++++++++++ drivers/clk/amlogic/a9-model-ccu.c | 475 ++++++++++ drivers/clk/amlogic/a9-pll.c | 156 ++++ drivers/clk/amlogic/clk-basic.c | 219 +++++ drivers/clk/amlogic/clk-basic.h | 39 + drivers/clk/amlogic/clk-composite.c | 280 ++++++ drivers/clk/amlogic/clk-composite.h | 20 + drivers/clk/amlogic/clk-dualdiv.c | 365 ++++++++ drivers/clk/amlogic/clk-dualdiv.h | 27 + drivers/clk/amlogic/clk-module.c | 42 + drivers/clk/amlogic/clk-module.h | 53 ++ drivers/clk/amlogic/clk-noglitch.c | 584 +++++++++++++ drivers/clk/amlogic/clk-noglitch.h | 29 + drivers/clk/amlogic/clk-pll.c | 701 +++++++++++++++ drivers/clk/amlogic/clk-pll.h | 43 + drivers/clk/amlogic/clk.c | 464 ++++++++++ drivers/clk/amlogic/clk.h | 56 ++ include/dt-bindings/clock/amlogic,a9-misc-ccu.h | 53 ++ 25 files changed, 5745 insertions(+) --- base-commit: 4d310797262f0ddf129e76c2aad2b950adaf1fda change-id: 20260130-a9_clock_driver-ddd90357848c Best regards, -- Chuan Liu 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 CBBF5EF06FF for ; 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Mon, 9 Feb 2026 05:49:06 +0000 (UTC) From: Chuan Liu via B4 Relay Subject: [PATCH 00/13] clk: amlogic: Introduce A9 PLL and CCU driver support Date: Mon, 09 Feb 2026 13:48:46 +0800 Message-Id: <20260209-a9_clock_driver-v1-0-a9198dc03d2a@amlogic.com> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAD51iWkC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDQ2MD3UTL+OSc/OTs+JSizLLUIt2UlBRLA2NTcwsTi2QloK6CotS0zAq widGxtbUA4Ft7hWEAAAA= To: Neil Armstrong , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-amlogic@lists.infradead.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Chuan Liu X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1770616142; l=3749; i=chuan.liu@amlogic.com; s=20240902; h=from:subject:message-id; bh=ebLbpj1aW+Kz/xR5J14ie4MaN19ZepOR5F1hDJBpNPo=; b=lzoDOte3b+xv8Lht85pzHNT4bc9SCKzSJHu3j0g+C54rxft4OKN9wVoNSGsq/aF0aeGhuWILt HJSKa4eJLVkAudSDfO5EnhD0iLLehuVlS/aMg3Z+WdGdcWiSCsCcqap X-Developer-Key: i=chuan.liu@amlogic.com; a=ed25519; pk=fnKDB+81SoWGKW2GJNFkKy/ULvsDmJZRGBE7pR5Xcpo= X-Endpoint-Received: by B4 Relay for chuan.liu@amlogic.com/20240902 with auth_id=203 X-Original-From: Chuan Liu X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260208_214907_844842_F745ABE9 X-CRM114-Status: UNSURE ( 9.68 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: chuan.liu@amlogic.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org This patch adds driver support for Phase-Locked Loop (PLL) controllers and Clock Control Units (CCUs) in A9 SoC family. In the A9 SoC architecture, PLLs and clock control units are implemented as standardized hardware instances to reduce unnecessary differentiation across individual units. All A9 PLLs and CCUs are exposed as device tree nodes, providing an accurate representation of the SoC's internal clock hardware structure. These drivers are designed for reuse in subsequent SoC generations, guaranteeing code inheritance and maximizing reusability. Makefile rules compile A9 PLL and CCU drivers into clk-amlogic.o (see drivers/clk/amlogic/Makefile), simplifying deployment and enhancing load efficiency (single insmod for kernel module). Since the foundational A9 DTS hasn't been upstreamed yet, I'm temporarily pushing the PLL/CCU DTS files to github for driver comprehension [1]. These patches will be included in a later release after the base A9 DTS is merged. [1] https://github.com/torvalds/linux/commit/d6a82e4cce675fa5146c5f638c2a926c1c8cb1d9 Signed-off-by: Chuan Liu --- Chuan Liu (13): dt-bindings: clock: Add Amlogic A9 standardized model clock control units dt-bindings: clock: Add Amlogic A9 PLL controllers dt-bindings: clock: Add Amlogic A9 misc clock control units clk: amlogic: Add basic clock driver clk: amlogic: Add composite clock driver clk: amlogic: Add noglitch clock driver clk: amlogic: Add duandiv clock driver clk: amlogic: Add PLL driver clk: amlogic: Add DT-based clock registration functions clk: amlogic: Add A9 standardized model clock control units driver clk: amlogic: Add A9 PLL controllers driver clk: amlogic: Add A9 misc clock control units driver clk: amlogic: Add support for building as combined kernel module .../bindings/clock/amlogic,a9-misc-ccu.yaml | 523 +++++++++++ .../bindings/clock/amlogic,a9-model-ccu.yaml | 435 +++++++++ .../devicetree/bindings/clock/amlogic,a9-pll.yaml | 134 +++ drivers/clk/Kconfig | 1 + drivers/clk/Makefile | 1 + drivers/clk/amlogic/Kconfig | 52 ++ drivers/clk/amlogic/Makefile | 23 + drivers/clk/amlogic/a9-misc-ccu.c | 970 +++++++++++++++++++++ drivers/clk/amlogic/a9-model-ccu.c | 475 ++++++++++ drivers/clk/amlogic/a9-pll.c | 156 ++++ drivers/clk/amlogic/clk-basic.c | 219 +++++ drivers/clk/amlogic/clk-basic.h | 39 + drivers/clk/amlogic/clk-composite.c | 280 ++++++ drivers/clk/amlogic/clk-composite.h | 20 + drivers/clk/amlogic/clk-dualdiv.c | 365 ++++++++ drivers/clk/amlogic/clk-dualdiv.h | 27 + drivers/clk/amlogic/clk-module.c | 42 + drivers/clk/amlogic/clk-module.h | 53 ++ drivers/clk/amlogic/clk-noglitch.c | 584 +++++++++++++ drivers/clk/amlogic/clk-noglitch.h | 29 + drivers/clk/amlogic/clk-pll.c | 701 +++++++++++++++ drivers/clk/amlogic/clk-pll.h | 43 + drivers/clk/amlogic/clk.c | 464 ++++++++++ drivers/clk/amlogic/clk.h | 56 ++ include/dt-bindings/clock/amlogic,a9-misc-ccu.h | 53 ++ 25 files changed, 5745 insertions(+) --- base-commit: 4d310797262f0ddf129e76c2aad2b950adaf1fda change-id: 20260130-a9_clock_driver-ddd90357848c Best regards, -- Chuan Liu _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A751A2D9EED; 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dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gySpQ9nn" Received: by smtp.kernel.org (Postfix) with ESMTPS id 3A218C19424; Mon, 9 Feb 2026 05:49:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770616146; bh=ebLbpj1aW+Kz/xR5J14ie4MaN19ZepOR5F1hDJBpNPo=; h=From:Subject:Date:To:Cc:Reply-To:From; b=gySpQ9nnz39+fgc/D/7EzD0zxPRXwxnGokjoqSDL2jaMq32fa+1ks/6/HMNp/a2Oa KdIJKF/aXNzmGnDQxmvh0PXsMl3Er1LnJlV39q75Y9m7A+LdGuAM/pDZ5zLSwPcQFx /7HFm0BHah+S+AesUcH/pA2g3B8kMBaSb1NAzdU0LzjoRsCIfZykGuJP/FbYes1k0z SjL7nQNz4iSKlyfOMlpL7AtOHcbfkNwvvvTxWHAEDi7B1/TMFCi0Q4VZZzhLLvgod9 lOn7AoPkf5roCgyenW9i6hL1pCG/fQoQMRKDNlSGNrYxDh/zllB6gAHKZUOnAaQrL3 0IfcpMWpBhTng== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1BD80EF06FF; Mon, 9 Feb 2026 05:49:06 +0000 (UTC) From: Chuan Liu via B4 Relay Subject: [PATCH 00/13] clk: amlogic: Introduce A9 PLL and CCU driver support Date: Mon, 09 Feb 2026 13:48:46 +0800 Message-Id: <20260209-a9_clock_driver-v1-0-a9198dc03d2a@amlogic.com> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAD51iWkC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDQ2MD3UTL+OSc/OTs+JSizLLUIt2UlBRLA2NTcwsTi2QloK6CotS0zAq widGxtbUA4Ft7hWEAAAA= To: Neil Armstrong , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-amlogic@lists.infradead.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Chuan Liu X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1770616142; l=3749; i=chuan.liu@amlogic.com; s=20240902; h=from:subject:message-id; bh=ebLbpj1aW+Kz/xR5J14ie4MaN19ZepOR5F1hDJBpNPo=; b=lzoDOte3b+xv8Lht85pzHNT4bc9SCKzSJHu3j0g+C54rxft4OKN9wVoNSGsq/aF0aeGhuWILt HJSKa4eJLVkAudSDfO5EnhD0iLLehuVlS/aMg3Z+WdGdcWiSCsCcqap X-Developer-Key: i=chuan.liu@amlogic.com; a=ed25519; pk=fnKDB+81SoWGKW2GJNFkKy/ULvsDmJZRGBE7pR5Xcpo= X-Endpoint-Received: by B4 Relay for chuan.liu@amlogic.com/20240902 with auth_id=203 X-Original-From: Chuan Liu Reply-To: chuan.liu@amlogic.com This patch adds driver support for Phase-Locked Loop (PLL) controllers and Clock Control Units (CCUs) in A9 SoC family. In the A9 SoC architecture, PLLs and clock control units are implemented as standardized hardware instances to reduce unnecessary differentiation across individual units. All A9 PLLs and CCUs are exposed as device tree nodes, providing an accurate representation of the SoC's internal clock hardware structure. These drivers are designed for reuse in subsequent SoC generations, guaranteeing code inheritance and maximizing reusability. Makefile rules compile A9 PLL and CCU drivers into clk-amlogic.o (see drivers/clk/amlogic/Makefile), simplifying deployment and enhancing load efficiency (single insmod for kernel module). Since the foundational A9 DTS hasn't been upstreamed yet, I'm temporarily pushing the PLL/CCU DTS files to github for driver comprehension [1]. These patches will be included in a later release after the base A9 DTS is merged. [1] https://github.com/torvalds/linux/commit/d6a82e4cce675fa5146c5f638c2a926c1c8cb1d9 Signed-off-by: Chuan Liu --- Chuan Liu (13): dt-bindings: clock: Add Amlogic A9 standardized model clock control units dt-bindings: clock: Add Amlogic A9 PLL controllers dt-bindings: clock: Add Amlogic A9 misc clock control units clk: amlogic: Add basic clock driver clk: amlogic: Add composite clock driver clk: amlogic: Add noglitch clock driver clk: amlogic: Add duandiv clock driver clk: amlogic: Add PLL driver clk: amlogic: Add DT-based clock registration functions clk: amlogic: Add A9 standardized model clock control units driver clk: amlogic: Add A9 PLL controllers driver clk: amlogic: Add A9 misc clock control units driver clk: amlogic: Add support for building as combined kernel module .../bindings/clock/amlogic,a9-misc-ccu.yaml | 523 +++++++++++ .../bindings/clock/amlogic,a9-model-ccu.yaml | 435 +++++++++ .../devicetree/bindings/clock/amlogic,a9-pll.yaml | 134 +++ drivers/clk/Kconfig | 1 + drivers/clk/Makefile | 1 + drivers/clk/amlogic/Kconfig | 52 ++ drivers/clk/amlogic/Makefile | 23 + drivers/clk/amlogic/a9-misc-ccu.c | 970 +++++++++++++++++++++ drivers/clk/amlogic/a9-model-ccu.c | 475 ++++++++++ drivers/clk/amlogic/a9-pll.c | 156 ++++ drivers/clk/amlogic/clk-basic.c | 219 +++++ drivers/clk/amlogic/clk-basic.h | 39 + drivers/clk/amlogic/clk-composite.c | 280 ++++++ drivers/clk/amlogic/clk-composite.h | 20 + drivers/clk/amlogic/clk-dualdiv.c | 365 ++++++++ drivers/clk/amlogic/clk-dualdiv.h | 27 + drivers/clk/amlogic/clk-module.c | 42 + drivers/clk/amlogic/clk-module.h | 53 ++ drivers/clk/amlogic/clk-noglitch.c | 584 +++++++++++++ drivers/clk/amlogic/clk-noglitch.h | 29 + drivers/clk/amlogic/clk-pll.c | 701 +++++++++++++++ drivers/clk/amlogic/clk-pll.h | 43 + drivers/clk/amlogic/clk.c | 464 ++++++++++ drivers/clk/amlogic/clk.h | 56 ++ include/dt-bindings/clock/amlogic,a9-misc-ccu.h | 53 ++ 25 files changed, 5745 insertions(+) --- base-commit: 4d310797262f0ddf129e76c2aad2b950adaf1fda change-id: 20260130-a9_clock_driver-ddd90357848c Best regards, -- Chuan Liu