linux-kernel - [PATCH v2 0/5] Support clock and reset unit of Rockchip RK3528

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Message-ID: <20250108114605.1960-2-ziyao@disroot.org>
Date: Wed,  8 Jan 2025 11:46:01 +0000
From: Yao Zi <ziyao@...root.org>
To: Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Philipp Zabel <p.zabel@...gutronix.de>
Cc: linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Yao Zi <ziyao@...root.org>
Subject: [PATCH v2 0/5] Support clock and reset unit of Rockchip RK3528

Similar to previous Rockchip SoCs, reset controller on RK3528 shares
MMIO region with clock controller, combined as CRU. They're represented
as a single node in dt.

For the reset controller, only bindings are included in this series
because it's hard to test the reset controller without support for some
peripherals (e.g. pinctrl). I'd like to first make dt and basic
peripherals available, then submit the driver.

This is tested on Radxa E20C board. With some out-of-tree drivers, I've
successfully brouhgt up UART, pinctrl/gpio and I2C. A clock dump could
be obtained from [1].

[1]: https://gist.github.com/ziyao233/032961d1eebeecb9a41fea2d690e8351

Yao Zi (5):
  dt-bindings: clock: Document clock and reset unit of RK3528
  clk: rockchip: Add PLL flag ROCKCHIP_PLL_FIXED_MODE
  clk: rockchip: Add clock controller driver for RK3528 SoC
  arm64: dts: rockchip: Add clock generators for RK3528 SoC
  arm64: dts: rockchip: Add UART clocks for RK3528 SoC

 .../bindings/clock/rockchip,rk3528-cru.yaml   |   67 +
 arch/arm64/boot/dts/rockchip/rk3528.dtsi      |   68 +-
 drivers/clk/rockchip/Kconfig                  |    7 +
 drivers/clk/rockchip/Makefile                 |    1 +
 drivers/clk/rockchip/clk-pll.c                |   10 +-
 drivers/clk/rockchip/clk-rk3528.c             | 1114 +++++++++++++++++
 drivers/clk/rockchip/clk.h                    |   22 +
 .../dt-bindings/clock/rockchip,rk3528-cru.h   |  453 +++++++
 .../dt-bindings/reset/rockchip,rk3528-cru.h   |  241 ++++
 9 files changed, 1978 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/rockchip,rk3528-cru.yaml
 create mode 100644 drivers/clk/rockchip/clk-rk3528.c
 create mode 100644 include/dt-bindings/clock/rockchip,rk3528-cru.h
 create mode 100644 include/dt-bindings/reset/rockchip,rk3528-cru.h

-- 
2.47.1