[PATCH 01/11] drm/i915: Introduce HAS_DOUBLE_WIDE()

[Ville Syrjala]

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

Make the code a bit more self documenting by adding
HAS_DOUBLE_WIDE().

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_cdclk.c          | 2 +-
 drivers/gpu/drm/i915/display/intel_display.c        | 4 ++--
 drivers/gpu/drm/i915/display/intel_display_device.h | 1 +
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 96523526a2c3..6cef3ca3a069 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -3462,7 +3462,7 @@ static int intel_compute_max_dotclk(struct intel_display *display)
 		return max_cdclk_freq;
 	else if (IS_CHERRYVIEW(dev_priv))
 		return max_cdclk_freq*95/100;
-	else if (DISPLAY_VER(display) < 4)
+	else if (HAS_DOUBLE_WIDE(display))
 		return 2*max_cdclk_freq*90/100;
 	else
 		return max_cdclk_freq*90/100;
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 0e6d6c8354ef..9a5102224c59 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -2371,7 +2371,7 @@ static bool intel_crtc_supports_double_wide(const struct intel_crtc *crtc)
 	const struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
 
 	/* GDG double wide on either pipe, otherwise pipe A only */
-	return DISPLAY_VER(dev_priv) < 4 &&
+	return HAS_DOUBLE_WIDE(dev_priv) &&
 		(crtc->pipe == PIPE_A || IS_I915G(dev_priv));
 }
 
@@ -3207,7 +3207,7 @@ static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
 
 	intel_color_get_config(pipe_config);
 
-	if (DISPLAY_VER(dev_priv) < 4)
+	if (HAS_DOUBLE_WIDE(dev_priv))
 		pipe_config->double_wide = tmp & TRANSCONF_DOUBLE_WIDE;
 
 	intel_get_transcoder_timings(crtc, pipe_config);
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h
index 410f8b33a8a1..ae7a35cf44ca 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.h
+++ b/drivers/gpu/drm/i915/display/intel_display_device.h
@@ -129,6 +129,7 @@ enum intel_display_subplatform {
 #define HAS_DISPLAY(i915)		(DISPLAY_RUNTIME_INFO(i915)->pipe_mask != 0)
 #define HAS_DMC(i915)			(DISPLAY_RUNTIME_INFO(i915)->has_dmc)
 #define HAS_DOUBLE_BUFFERED_M_N(i915)	(DISPLAY_VER(i915) >= 9 || IS_BROADWELL(i915))
+#define HAS_DOUBLE_WIDE(i915)		(DISPLAY_VER(i915) < 4)
 #define HAS_DP_MST(i915)		(DISPLAY_INFO(i915)->has_dp_mst)
 #define HAS_DP20(i915)			(IS_DG2(i915) || DISPLAY_VER(i915) >= 14)
 #define HAS_DPT(i915)			(DISPLAY_VER(i915) >= 13)
-- 
2.45.2