linux-kernel - [PATCH v3 0/2] Add support for RK3588 HDMI/eDP Combo PHY

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Date: Mon, 12 Feb 2024 20:52:28 +0200
From: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
To: Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>, 
 Johan Jonker <jbx6244@...il.com>, 
 Sebastian Reichel <sebastian.reichel@...labora.com>, 
 Sascha Hauer <s.hauer@...gutronix.de>, Andy Yan <andy.yan@...k-chips.com>, 
 Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>, 
 Philipp Zabel <p.zabel@...gutronix.de>, 
 Algea Cao <algea.cao@...k-chips.com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 linux-phy@...ts.infradead.org, kernel@...labora.com, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v3 0/2] Add support for RK3588 HDMI/eDP Combo PHY

Add driver and bindings to add initial support the Rockchip HDMI/eDP TX
Combo PHY found on RK3588 SoC.

The PHY is based on a Samsung IP block and supports HDMI 2.1 TMDS, FRL
and eDP links.

Please note that currently only the TMDS related functionality has been
implemented.  This has been tested on Radxa ROCK 5B and Rockchip EVB1
boards.

Changes in v3:
- Collected R-b & T-b tags from Heiko
- Converted all *_REG() args to lowercase (Vinod)
- Dropped unnecessary register read/write wrappers (Vinod)
- Added rate overflow check in hdptx_phy_clk_pll_calc() (Luis)
- Link to v2:
  https://lore.kernel.org/r/20240205-phy-hdptx-v2-0-a7150814c047@collabora.com

Changes in v2:
- Rebased series onto next-20240129
- Removed patch 'dt-bindings: soc: rockchip: Add rk3588 hdptxphy syscon'
  already applied by Heiko
- For consistency with SoC TRM, replaced all references to DP with eDP
- Updated PHY schema per Krzysztof's review; also collected his R-b tag
- Dropped FRL, EARC and 10-bit color depth functionality until the HDMI
  configuration options become available in PHY API
- Squashed lots of regmap_write operations via regmap_multi_reg_write
  (Sebastian)
- Introduced parametrized {CMN|SB|LNTOP|LANE}_REG() macros to replace
  the long list of register defines
- Optimized handling of the config arrays by using ARRAY_SIZE() (Sascha)
- Link to v1:
  https://lore.kernel.org/r/20240119193806.1030214-1-cristian.ciocaltea@collabora.com

---
Cristian Ciocaltea (2):
      dt-bindings: phy: Add Rockchip HDMI/eDP Combo PHY schema
      phy: rockchip: Add Samsung HDMI/eDP Combo PHY driver

 .../bindings/phy/rockchip,rk3588-hdptx-phy.yaml    |   91 ++
 drivers/phy/rockchip/Kconfig                       |    8 +
 drivers/phy/rockchip/Makefile                      |    1 +
 drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c  | 1028 ++++++++++++++++++++
 4 files changed, 1128 insertions(+)
---
base-commit: 596764183be8ebb13352b281a442a1f1151c9b06
change-id: 20240128-phy-hdptx-8a98ab60d18e