[PATCH 2/4] drm/i915/cdclk: Introduce HAS_2PPC()

[Ville Syrjala <ville.syrjala@linux.intel.com>]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

We'll need to check for the "does the platform do 2 pixels per clock?"
thing in a few places. Add a feature macro for it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_cdclk.c          | 2 +-
 drivers/gpu/drm/i915/display/intel_display_device.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 1d7ff2cbaebb..12bb6c414683 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -2910,7 +2910,7 @@ intel_set_cdclk_post_plane_update(struct intel_atomic_state *state)
 /* pixels per CDCLK */
 int intel_cdclk_ppc(struct intel_display *display, bool double_wide)
 {
-	return DISPLAY_VER(display) >= 10 || double_wide ? 2 : 1;
+	return HAS_2PPC(display) || double_wide ? 2 : 1;
 }
 
 /* max pixel rate as % of CDCLK (not accounting for PPC) */
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h
index 9aeba329b9bd..7121e7cd9512 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.h
+++ b/drivers/gpu/drm/i915/display/intel_display_device.h
@@ -146,6 +146,7 @@ struct intel_display_platforms {
 	func(supports_tv);
 
 #define HAS_128B_Y_TILING(__display)	(!(__display)->platform.i915g && !(__display)->platform.i915gm)
+#define HAS_2PPC(__display)		(DISPLAY_VER(__display) >= 10)
 #define HAS_4TILE(__display)		((__display)->platform.dg2 || DISPLAY_VER(__display) >= 14)
 #define HAS_ASYNC_FLIPS(__display)	(DISPLAY_VER(__display) >= 5)
 #define HAS_AS_SDP(__display)		(DISPLAY_VER(__display) >= 13)
-- 
2.54.0