Thread (19 messages) 19 messages, 4 authors, 2024-02-12

Re: [PATCH v1 04/10] phy: rockchip: add usbdp combo phy driver

From: Johan Jonker <hidden>
Date: 2024-02-11 20:50:42
Also in: linux-phy, linux-rockchip, lkml


On 2/9/24 19:17, Sebastian Reichel wrote:
This adds a new USBDP combo PHY with Samsung IP block driver.

The driver get lane mux and mapping info in 2 ways, supporting
DisplayPort alternate mode or parsing from DT. When parsing from DT,
the property "rockchip,dp-lane-mux" provide the DP mux and mapping
info. This is needed when the PHY is not used with TypeC Alt-Mode.
For example if the USB3 interface of the PHY is connected to a USB
Type A connector and the DP interface is connected to a DisplayPort
connector.

When do DP link training, need to set lane number, link rate, swing,
and pre-emphasis via PHY configure interface.

Co-developed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Co-developed-by: Zhang Yubing <redacted>
Signed-off-by: Zhang Yubing <redacted>
Co-developed-by: Frank Wang <redacted>
Signed-off-by: Frank Wang <redacted>
Signed-off-by: Sebastian Reichel <redacted>
---
For Linux FTRACE filters it is needed that all functions in a driver start with the same function prefix.
Currently there's a mix of udphy_* and rockchip_*
Maybe use rk_udphy_* ??? similar to for example rk_nfc_* in rockchip-nand-controller.c

Johan
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