[Intel-gfx] [PATCH] drm/i915: add force_probe module parameter to replace alpha_support

[Joonas Lahtinen]

Quoting Jani Nikula (2019-05-06 16:48:01)
> The i915.alpha_support module parameter has caused some confusion along
> the way. Add new i915.force_probe parameter to specify PCI IDs of
> devices to probe, when the devices are recognized but not automatically
> probed by the driver. The name is intended to reflect what the parameter
> effectively does, avoiding any overloaded semantics of "alpha" and
> "support".
> 
> The parameter supports "" to disable, "<pci-id>,[<pci-id>,...]" to
> enable force probe for one or more devices, and "*" to enable force
> probe for all known devices.
> 
> Also add new CONFIG_DRM_I915_FORCE_PROBE config option to replace the
> DRM_I915_ALPHA_SUPPORT option. This defaults to "*" if
> DRM_I915_ALPHA_SUPPORT=y.
> 
> Instead of replacing i915.alpha_support immediately, let the two coexist
> for a while, with a deprecation message, for a transition period.
> 
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>

Definitely in favor of this:

Acked-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>

Regards, Joonas