Re: [PATCH v13 00/10] Add multiport support for DWC3 controllers

From: Konrad Dybcio
Date: Tue Oct 10 2023 - 16:52:08 EST




On 10/7/23 17:47, Krishna Kurapati wrote:
Currently the DWC3 driver supports only single port controller which
requires at most two PHYs ie HS and SS PHYs. There are SoCs that has
DWC3 controller with multiple ports that can operate in host mode.
Some of the port supports both SS+HS and other port supports only HS
mode.

This change primarily refactors the Phy logic in core driver to allow
multiport support with Generic Phy's.

Changes have been tested on QCOM SoC SA8295P which has 4 ports (2
are HS+SS capable and 2 are HS only capable).

Changes in v13:
This series is a subset of patches in v11 as the first 3 patches in v11
have been mereged into usb-next.
Moved dr_mode property from platform specific files to common sc8280xp DT.
Fixed function call wrapping, added comments and replaced #defines with
enum in dwc3-qcom for identifying IRQ index appropriately.
Fixed nitpicks pointed out in v11 for suspend-resume handling.
Added reported-by tag for phy refactoring patch as a compile error was
found by kernel test bot [1].
"If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags"

the issue your patch resolves is not one that was reported by the kernel testing robot, it just pointed out that you need to fix up the next revision

Konrad