[PATCH v1 3/9] drm/i915/scaler: de-Morgan-ize !scaler_has_casf()

["Michał Grzelak" <michal.grzelak@intel.com>]

Distribute negation inside scaler_has_casf() using de Morgan law
resulting in (!HAS_CASF(display) || scaler_id != 1). Distribute the AND
operator with casf_scaler using de Morgan law once again in order to
have two OR'd clauses.

This will be used by next patches to separate and move both clauses.

Cc: Nemesa Garg <nemesa.garg@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Michał Grzelak <michal.grzelak@intel.com>
---
 drivers/gpu/drm/i915/display/skl_scaler.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/skl_scaler.c b/drivers/gpu/drm/i915/display/skl_scaler.c
index 0cfa5b7564ba..f2216a9ea3f8 100644
--- a/drivers/gpu/drm/i915/display/skl_scaler.c
+++ b/drivers/gpu/drm/i915/display/skl_scaler.c
@@ -343,7 +343,8 @@ static int intel_allocate_scaler(struct intel_crtc_scaler_state *scaler_state,
 		if (scaler_state->scalers[scaler_id].in_use)
 			continue;
 
-		if (casf_scaler && !scaler_has_casf(display, scaler_id))
+		if ((casf_scaler && !HAS_CASF(display)) ||
+		    (casf_scaler && scaler_id != 1))
 			continue;
 
 		scaler_state->scalers[scaler_id].in_use = true;
-- 
2.45.2