drm/i915/crtc: Expose sharpness only if num_scalers is >= 2

CASF requires the second scaler for sharpness.
Do not expose the SHARPNESS_STRENGTH property if
the CRTC has fewer than two scalers.

v2: Modify header and commit message. [Ankit]

Signed-off-by: Nemesa Garg <nemesa.garg@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patch.msgid.link/20251126084152.3905905-1-nemesa.garg@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c
index 2fe645860385df9b64aedc408dc5908b475a0b40..5e1e02c8d9d44504f2864b26a42dc9337f3ca0a0 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_crtc.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc.c
@@ -395,7 +395,7 @@ int intel_crtc_init(struct intel_display *display, enum pipe pipe)
 
        drm_WARN_ON(display->drm, drm_crtc_index(&crtc->base) != crtc->pipe);
 
-       if (HAS_CASF(display))
+       if (HAS_CASF(display) && crtc->num_scalers >= 2)
                drm_crtc_create_sharpness_strength_property(&crtc->base);
 
        return 0;