Some platforms require the host to poll on the
GSC registers instead of relaying on the interrupts.
For those platforms, irq initialization should be skipped
Signed-off-by: Vitaly Lubart <vitaly.lubart@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907215113.1596567-2-tomas.winkler@intel.com
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
const char *name;
unsigned long bar;
size_t bar_size;
+ bool use_polling;
};
/* gsc resources and definitions (HECI1 and HECI2) */
return;
}
+ /* skip irq initialization */
+ if (def->use_polling)
+ goto add_device;
+
intf->irq = irq_alloc_desc(0);
if (intf->irq < 0) {
drm_err(&i915->drm, "gsc irq error %d\n", intf->irq);
goto fail;
}
+add_device:
adev = kzalloc(sizeof(*adev), GFP_KERNEL);
if (!adev)
goto fail;
return;
}
- if (gt->gsc.intf[intf_id].irq < 0) {
- drm_err_ratelimited(>->i915->drm, "GSC irq: irq not set");
+ if (gt->gsc.intf[intf_id].irq < 0)
return;
- }
ret = generic_handle_irq(gt->gsc.intf[intf_id].irq);
if (ret)