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

[Luke Nowakowski-Krijger]

Assuming this is the v3 for this patch from the
"[PATCH 0/4 V2][SRU][K/J/OEM-6.0/OEM-5.17] Fix SUT can't displayed after
resume from WB/CB with dGFX installed(FR:6/10)[RX6300][RX6500]"
patch series.

Acked-by: Luke Nowakowski-Krijger <luke.nowakowskikrijger at canonical.com>

On Tue, Jan 3, 2023 at 6:25 AM Koba Ko <koba.ko at canonical.com> 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>
> ~~~
> V3: clean cherry-pick for J/OEM-5.17
> ---
>  .../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"),
> +               },
> +       },
>         {}
>  };
>
> --
> 2.25.1
>
>
> --
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> kernel-team at lists.ubuntu.com
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>
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