[Intel-gfx] [PATCH 1/4] drm/i915/dp: Simplify checks for helper intel_dp_dsc_max_src_input_bpc

[Ankit Nautiyal]

In helper intel_dp_dsc_max_src_input_bpc it is assumed that platforms
earlier to ICL do not support DSC, and the function returns 0 for
those platforms.

Use HAS_DSC macro instead and return 0 for platforms that do not support
DSC.

v2: Updated commit message with clarification. (Jani)

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 1422c2370269..54306271f5c2 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1625,13 +1625,14 @@ intel_dp_compute_link_config_wide(struct intel_dp *intel_dp,
 static
 u8 intel_dp_dsc_max_src_input_bpc(struct drm_i915_private *i915)
 {
+	if (!HAS_DSC(i915))
+		return 0;
+
 	/* Max DSC Input BPC for ICL is 10 and for TGL+ is 12 */
-	if (DISPLAY_VER(i915) >= 12)
-		return 12;
 	if (DISPLAY_VER(i915) == 11)
 		return 10;
 
-	return 0;
+	return 12;
 }
 
 int intel_dp_dsc_compute_max_bpp(const struct intel_connector *connector,
-- 
2.40.1