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

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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@xxxxxxxxx>
---
 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 5391b2a83405..30ea4820b210 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1569,13 +1569,14 @@ 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




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