Re: [PATCH v2] drm/client: Detect when ACPI lid is closed during initialization

[Mario Limonciello <mario.limonciello@xxxxxxx>]

On 5/29/2024 08:55, Alex Deucher wrote:
> On Wed, May 29, 2024 at 9:51 AM Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> wrote:
> > On Wed, 29 May 2024, Alex Deucher <alexdeucher@xxxxxxxxx> wrote:
> > > On Tue, May 28, 2024 at 5:03 PM Mario Limonciello
> > > <mario.limonciello@xxxxxxx> wrote:
> > > > If the lid on a laptop is closed when eDP connectors are populated
> > > > then it remains enabled when the initial framebuffer configuration
> > > > is built.
> > > >
> > > > When creating the initial framebuffer configuration detect the ACPI
> > > > lid status and if it's closed disable any eDP connectors.
> > > >
> > > > Reported-by: Chris Bainbridge <chris.bainbridge@xxxxxxxxx>
> > > > Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3349
> > > > Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
> > >
> > > Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
> > >
> > > Do you have drm-misc access or do you need someone to apply this for you?
> >
> > I've bounced this to intel-gfx and intel-xe lists to get CI testing. I'd
> > appreciate holding off on merging until we have results.
>
> Sure.

Thanks for the review and pushing it to CI testing infra.

I don't have any drm-misc access so if everything looks good then one of 
you guys please merge it for me.

Thanks!

> Alex
>
> > Thanks,
> > Jani.
> >
> > > Alex
> > >
> > > > ---
> > > > Cc: hughsient@xxxxxxxxx
> > > > v1->v2:
> > > >   * Match LVDS as well
> > > > ---
> > > >   drivers/gpu/drm/drm_client_modeset.c | 30 ++++++++++++++++++++++++++++
> > > >   1 file changed, 30 insertions(+)
> > > >
> > > > diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c
> > > > index 31af5cf37a09..0b0411086e76 100644
> > > > --- a/drivers/gpu/drm/drm_client_modeset.c
> > > > +++ b/drivers/gpu/drm/drm_client_modeset.c
> > > > @@ -8,6 +8,7 @@
> > > >    */
> > > >
> > > >   #include "drm/drm_modeset_lock.h"
> > > > +#include <acpi/button.h>
> > > >   #include <linux/module.h>
> > > >   #include <linux/mutex.h>
> > > >   #include <linux/slab.h>
> > > > @@ -257,6 +258,34 @@ static void drm_client_connectors_enabled(struct drm_connector **connectors,
> > > >                  enabled[i] = drm_connector_enabled(connectors[i], false);
> > > >   }
> > > >
> > > > +static void drm_client_match_edp_lid(struct drm_device *dev,
> > > > +                                    struct drm_connector **connectors,
> > > > +                                    unsigned int connector_count,
> > > > +                                    bool *enabled)
> > > > +{
> > > > +       int i;
> > > > +
> > > > +       for (i = 0; i < connector_count; i++) {
> > > > +               struct drm_connector *connector = connectors[i];
> > > > +
> > > > +               switch (connector->connector_type) {
> > > > +               case DRM_MODE_CONNECTOR_LVDS:
> > > > +               case DRM_MODE_CONNECTOR_eDP:
> > > > +                       if (!enabled[i])
> > > > +                               continue;
> > > > +                       break;
> > > > +               default:
> > > > +                       continue;
> > > > +               }
> > > > +
> > > > +               if (!acpi_lid_open()) {
> > > > +                       drm_dbg_kms(dev, "[CONNECTOR:%d:%s] lid is closed, disabling\n",
> > > > +                                   connector->base.id, connector->name);
> > > > +                       enabled[i] = false;
> > > > +               }
> > > > +       }
> > > > +}
> > > > +
> > > >   static bool drm_client_target_cloned(struct drm_device *dev,
> > > >                                       struct drm_connector **connectors,
> > > >                                       unsigned int connector_count,
> > > > @@ -844,6 +873,7 @@ int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width,
> > > >                  memset(crtcs, 0, connector_count * sizeof(*crtcs));
> > > >                  memset(offsets, 0, connector_count * sizeof(*offsets));
> > > >
> > > > +               drm_client_match_edp_lid(dev, connectors, connector_count, enabled);
> > > >                  if (!drm_client_target_cloned(dev, connectors, connector_count, modes,
> > > >                                                offsets, enabled, width, height) &&
> > > >                      !drm_client_target_preferred(dev, connectors, connector_count, modes,
> > > > --
> > > > 2.43.0
> >
> > --
> > Jani Nikula, Intel