linux-kernel - [PATCH v4 0/5] Support SD/SDIO controllers on RK3528

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Message-ID: <20250417143647.43860-1-ziyao@disroot.org>
Date: Thu, 17 Apr 2025 14:36:42 +0000
From: Yao Zi <ziyao@...root.org>
To: Ulf Hansson <ulf.hansson@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Shresth Prasad <shresthprasad7@...il.com>,
	Cristian Ciocaltea <cristian.ciocaltea@...labora.com>,
	Detlev Casanova <detlev.casanova@...labora.com>,
	Jonas Karlman <jonas@...boo.se>,
	Chukun Pan <amadeus@....edu.cn>
Cc: linux-mmc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-clk@...r.kernel.org,
	Yao Zi <ziyao@...root.org>
Subject: [PATCH v4 0/5] Support SD/SDIO controllers on RK3528

RK3528 features two SDIO controllers and one SD/MMC controller. This
series adds essential support for their tuning clocks and brings the
SD/MMC one up on Radxa E20C board. Both HS and SDR104 mode are verified.

- Changed from v3
  - Drop applied binding patch of MMC controller
  - Rebase on top of linux-rockchip/for-next
  - Link to v3: https://lore.kernel.org/all/20250309055348.9299-1-ziyao@disroot.org/
- Changed from v2
  - Apply review tags
  - Rebase on top of linux-rockchip/for-next and drop applied patches
  - RK3528 devicetree
    - Fix accidentally dropped status property of saradc node
    - drop det and pwren pinctrls for SDIO{0,1} according to the
      reference design
    - Correct max-frequency for SDIO{0,1}
  - rk3528-radxa-e20c devicetree
    - Don't disable sdio for sdmmc as claimed in the hw design guide
  - Link to v2: https://lore.kernel.org/all/20250305194217.47052-1-ziyao@disroot.org/
- Changed from v1
  - Apply review tags
  - Rebase on top of linux-rockchip/for-next and saradc v2 series
  - rk3528 clock driver:
    - explicitly include minmax.h, replace MAX() with more robust max()
    - readability improvements
    - fix error checks: ERR_PTR(-ENODEV), instead of ERR_PTR(ENODEV), is
      returned when syscon_regmap_lookup_by_compatible() fails for missing
      such syscon
  - RK3528 devicetree
    - Add default pinctrl
    - Move the per-SoC property, rockchip,default-sample-phase, into the
      SoC devicetree
  - rk3528-radxa-e20c devicetree
    - Assign sdcard to mmc1
    - Add missing regulators
    - Apply no-sdio for the sdmmc controller
    - Sort nodes
  - Link to v1: https://lore.kernel.org/all/20250301104250.36295-1-ziyao@disroot.org/

Thanks for your time and review.

Yao Zi (5):
  dt-bindings: clock: Add GRF clock definition for RK3528
  clk: rockchip: Support MMC clocks in GRF region
  clk: rockchip: rk3528: Add SD/SDIO tuning clocks in GRF region
  arm64: dts: rockchip: Add SDMMC/SDIO controllers for RK3528
  arm64: dts: rockchip: Enable SD-card interface on Radxa E20C

 .../boot/dts/rockchip/rk3528-radxa-e20c.dts   | 30 ++++++++
 arch/arm64/boot/dts/rockchip/rk3528.dtsi      | 69 +++++++++++++++++++
 drivers/clk/rockchip/clk-mmc-phase.c          | 24 +++++--
 drivers/clk/rockchip/clk-rk3528.c             | 61 ++++++++++++++--
 drivers/clk/rockchip/clk.c                    | 42 +++++++++++
 drivers/clk/rockchip/clk.h                    | 23 ++++++-
 .../dt-bindings/clock/rockchip,rk3528-cru.h   |  6 ++
 7 files changed, 244 insertions(+), 11 deletions(-)

-- 
2.49.0