From: Andre Przywara <andre.przywara@arm.com>
To: Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Chen-Yu Tsai <wens@csie.org>,
Samuel Holland <samuel@sholland.org>
Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev,
Mikhail Kalashnikov <iuncuim@gmail.com>
Subject: [PATCH 0/5] arm64: allwinner: a523: Enable CPU clocks
Date: Wed, 3 Sep 2025 01:09:05 +0100 [thread overview]
Message-ID: <20250903000910.4860-1-andre.przywara@arm.com> (raw)
Hi,
this series adds support for the CPU clock controller in the Allwinner
A523/A527/T527 family of SoCs.
In contrast to all earlier Allwinner SoCs, this chip features a separate
CCU for the CPU clocks (one for each of the two clusters) and the DSU
clock.
Patch 1/5 adds the binding document for the new CCU. This builds on top
of Chen-Yu's recent patch for the MCU PRCM, listed as a prerequisite
below.
Patch 2 and 3 add some slight enhancements to the sunxi-ng clock driver
framework, to generalise the update bit and allow clocks with just a
power-of-2 divider.
Patch 4 adds the actual clock driver, and patch 5 makes use of that by
adding the clock description to the SoC .dtsi.
Please have a look and test!
Cheers,
Andre
Andre Przywara (5):
dt-bindings: clock: sun55i-a523-ccu: Add A523 CPU CCU clock controller
clk: sunxi-ng: generalise update bit
clk: sunxi-ng: mp: support clocks with just a shift register
clk: sunxi-ng: add support for the A523/T527 CPU CCU
arm64: dts: allwinner: a523: add CPU clocks
.../clock/allwinner,sun55i-a523-ccu.yaml | 25 ++
.../arm64/boot/dts/allwinner/sun55i-a523.dtsi | 22 ++
drivers/clk/sunxi-ng/Kconfig | 5 +
drivers/clk/sunxi-ng/Makefile | 2 +
drivers/clk/sunxi-ng/ccu-sun55i-a523-cpu.c | 338 ++++++++++++++++++
drivers/clk/sunxi-ng/ccu-sun55i-a523-cpu.h | 24 ++
drivers/clk/sunxi-ng/ccu-sun55i-a523.c | 12 +-
drivers/clk/sunxi-ng/ccu_common.h | 5 +-
drivers/clk/sunxi-ng/ccu_div.c | 3 +-
drivers/clk/sunxi-ng/ccu_gate.c | 6 +-
drivers/clk/sunxi-ng/ccu_mp.c | 6 +-
drivers/clk/sunxi-ng/ccu_mp.h | 8 +-
drivers/clk/sunxi-ng/ccu_mux.c | 3 +-
drivers/clk/sunxi-ng/ccu_nm.c | 1 +
.../dt-bindings/clock/sun55i-a523-cpu-ccu.h | 13 +
15 files changed, 450 insertions(+), 23 deletions(-)
create mode 100644 drivers/clk/sunxi-ng/ccu-sun55i-a523-cpu.c
create mode 100644 drivers/clk/sunxi-ng/ccu-sun55i-a523-cpu.h
create mode 100644 include/dt-bindings/clock/sun55i-a523-cpu-ccu.h
base-commit: 8f5ae30d69d7543eee0d70083daf4de8fe15d585
prerequisite-patch-id: 874f647e4961983cbcfda05d2fd906256b008327
--
2.46.3
next reply other threads:[~2025-09-03 0:09 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-03 0:09 Andre Przywara [this message]
2025-09-03 0:09 ` [PATCH 1/5] dt-bindings: clock: sun55i-a523-ccu: Add A523 CPU CCU clock controller Andre Przywara
2025-09-03 8:08 ` Krzysztof Kozlowski
2025-09-03 9:46 ` Andre Przywara
2025-09-03 10:25 ` Krzysztof Kozlowski
2025-09-03 0:09 ` [PATCH 2/5] clk: sunxi-ng: generalise update bit Andre Przywara
2025-09-06 4:15 ` Chen-Yu Tsai
2025-09-09 16:06 ` Chen-Yu Tsai
2025-09-09 16:39 ` Andre Przywara
2025-09-03 0:09 ` [PATCH 3/5] clk: sunxi-ng: mp: support clocks with just a shift register Andre Przywara
2025-09-03 4:20 ` Chen-Yu Tsai
2025-09-03 10:20 ` Andre Przywara
2025-09-09 13:32 ` Chen-Yu Tsai
2025-09-03 0:09 ` [PATCH 4/5] clk: sunxi-ng: add support for the A523/T527 CPU CCU Andre Przywara
2025-09-03 10:26 ` Krzysztof Kozlowski
2025-09-03 0:09 ` [PATCH 5/5] arm64: dts: allwinner: a523: add CPU clocks Andre Przywara
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