Re: [PATCH 2/2] usb: typec: intel_pmc_mux: Do not configure SBU and HSL Orientation in Alternate modes

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On Mon, Sep 07, 2020 at 04:10:58PM +0200, Greg Kroah-Hartman wrote:
> On Mon, Sep 07, 2020 at 04:57:40PM +0300, Heikki Krogerus wrote:
> > From: Utkarsh Patel <utkarsh.h.patel@xxxxxxxxx>
> > 
> > According to the PMC Type C Subsystem (TCSS) Mux programming guide rev
> > 0.7, bits 4 and 5 are reserved in Alternate modes.
> > SBU Orientation and HSL Orientation needs to be configured only during
> > initial cable detection in USB connect flow based on device property of
> > "sbu-orientation" and "hsl-orientation".
> > Configuring these reserved bits in the Alternate modes may result in delay
> > in display link training or some unexpected behaviour.
> > So do not configure them while issuing Alternate Mode requests.
> > 
> > Fixes: ff4a30d5e243 ("usb: typec: mux: intel_pmc_mux: Support for static SBU/HSL orientation")
> > Signed-off-by: Utkarsh Patel <utkarsh.h.patel@xxxxxxxxx>
> > Signed-off-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
> 
> Shouldn't this also need a cc:stable?

This one fixes something in 5.8-rcx.

> And why not cc: the linux-usb list on these patches?

I guess "acpi" and "usb" are very similar strings to my brain... I'm
sorry about the wrong list. I'll resend.

thanks,

-- 
heikki



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