ACK/Cmnt: [PATCH V3][SRU][J/OEM-5.17] drm/amd/display: No display after resume from WB/CB

[Koba Ko]

On Thu, Jan 12, 2023 at 4:17 PM Stefan Bader <stefan.bader at canonical.com> wrote:
>
> On 03.01.23 15:25, Koba Ko wrote:
> > From: Tsung-hua Lin <Tsung-hua.Lin at amd.com>
> >
> > BugLink: https://bugs.launchpad.net/bugs/1999836
> >
> > [why]
> > First MST sideband message returns AUX_RET_ERROR_HPD_DISCON
> > on certain intel platform. Aux transaction considered failure
> > if HPD unexpected pulled low. The actual aux transaction success
> > in such case, hence do not return error.
> >
> > [how]
> > Not returning error when AUX_RET_ERROR_HPD_DISCON detected
> > on the first sideband message.
> >
> > v2: squash in fix (Alex)
> >
> > Reviewed-by: Jerry Zuo <Jerry.Zuo at amd.com>
> > Acked-by: Brian Chang <Brian.Chang at amd.com>
> > Signed-off-by: Tsung-hua Lin <Tsung-hua.Lin at amd.com>
> > Tested-by: Daniel Wheeler <daniel.wheeler at amd.com>
> > Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> > (cherry picked from commit 503dc81c32b7138b55133ea2146a6b850155098d)
> > Signed-off-by: Koba Ko <koba.ko at canonical.com>
> Acked-by: Stefan Bader <stefan.bader at canonical.com>
> > ~~~
> > V3: clean cherry-pick for J/OEM-5.17
> > ---
>
> Note that this will potentially be missed by others since it is rather unclear
> whether you meant jammy:linux-oem-5.17 or jammy:linux AND jammy:linux-oem-5.17...
I meant Jammy:linux and Jammy:OEM-5.17.
next time, i will write the full name, e.g. Jammy and OEM-5.17.
> -Stefan
>
> >   .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 36 +++++++++++++++++++
> >   1 file changed, 36 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > index 023ab596c6ba7..b7875c6c28c8f 100644
> > --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > @@ -1299,6 +1299,42 @@ static const struct dmi_system_id hpd_disconnect_quirk_table[] = {
> >                       DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3460"),
> >               },
> >       },
> > +     {
> > +             .matches = {
> > +                     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
> > +                     DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Tower Plus 7010"),
> > +             },
> > +     },
> > +     {
> > +             .matches = {
> > +                     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
> > +                     DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Tower 7010"),
> > +             },
> > +     },
> > +     {
> > +             .matches = {
> > +                     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
> > +                     DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex SFF Plus 7010"),
> > +             },
> > +     },
> > +     {
> > +             .matches = {
> > +                     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
> > +                     DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex SFF 7010"),
> > +             },
> > +     },
> > +     {
> > +             .matches = {
> > +                     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
> > +                     DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Micro Plus 7010"),
> > +             },
> > +     },
> > +     {
> > +             .matches = {
> > +                     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
> > +                     DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Micro 7010"),
> > +             },
> > +     },
> >       {}
> >   };
> >
>
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