Re: [PATCH v7 5/9] usb: dwc3: core: Refactor PHY logic to support Multiport Controller

[Johan Hovold <johan@kernel.org>]

On Mon, May 01, 2023 at 08:04:41PM +0530, Krishna Kurapati wrote:
> Currently the DWC3 driver supports only single port controller
> which requires at most one HS and one SS PHY.
> 
> But the DWC3 USB controller can be connected to multiple ports and
> each port can have their own PHYs. Each port of the multiport
> controller can either be HS+SS capable or HS only capable
> Proper quantification of them is required to modify GUSB2PHYCFG
> and GUSB3PIPECTL registers appropriately.
> 
> Add support for detecting, obtaining and configuring phy's supported
> by a multiport controller and limit the max number of ports
> supported to 4.
> 
> Signed-off-by: Harsh Agarwal <quic_harshq@quicinc.com>
> Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
> ---
>  drivers/usb/dwc3/core.c | 262 +++++++++++++++++++++++++++++-----------
>  drivers/usb/dwc3/core.h |  12 +-
>  drivers/usb/dwc3/drd.c  |  13 +-
>  3 files changed, 209 insertions(+), 78 deletions(-)

Note that this patch no longer applies and you need to rebase the series
on mainline (e.g. including commit 1d72fab47656 ("USB: dwc3: refactor
phy handling").

Johan