drm/i915/skl: s/SKL/SKYLAKE for platform/subplatform defines

Follow consistent naming convention. Replace SKL with
SKYLAKE and Replace IS_SKL_GRAPHICS_STEP with
IS_SKYLAKE() && IS_GRAPHICS_STEP().

v2:
- Change subject skl instead of SKL(Anusha)

v3:
- Unrolled wrapper IS_SKL_GRAPHICS_STEP.
- Replace with IS_PLATFORM && DISPLAY_STEP(tvrtko/jani)

v4:
- Removed the unused macro.

Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230801135344.3797924-4-dnyaneshwar.bhadane@intel.com

drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c

@@ -1746,9 +1746,9 @@ void intel_ddi_buf_trans_init(struct intel_encoder *encoder)
 		encoder->get_buf_trans = kbl_u_get_buf_trans;
 	} else if (IS_COMETLAKE(i915) || IS_COFFEELAKE(i915) || IS_KABYLAKE(i915)) {
 		encoder->get_buf_trans = kbl_get_buf_trans;
-	} else if (IS_SKL_ULX(i915)) {
+	} else if (IS_SKYLAKE_ULX(i915)) {
 		encoder->get_buf_trans = skl_y_get_buf_trans;
-	} else if (IS_SKL_ULT(i915)) {
+	} else if (IS_SKYLAKE_ULT(i915)) {
 		encoder->get_buf_trans = skl_u_get_buf_trans;
 	} else if (IS_SKYLAKE(i915)) {
 		encoder->get_buf_trans = skl_get_buf_trans;

drivers/gpu/drm/i915/gt/intel_workarounds.c

@@ -1192,7 +1192,7 @@ skl_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
 		    GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
 
 	/* WaInPlaceDecompressionHang:skl */
-	if (IS_SKL_GRAPHICS_STEP(gt->i915, STEP_A0, STEP_H0))
+	if (IS_SKYLAKE(gt->i915) && IS_GRAPHICS_STEP(gt->i915, STEP_A0, STEP_H0))
 		wa_write_or(wal,
 			    GEN9_GAMT_ECO_REG_RW_IA,
 			    GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);

drivers/gpu/drm/i915/i915_drv.h

@@ -608,19 +608,19 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 /* ULX machines are also considered ULT. */
 #define IS_HASWELL_ULX(i915) \
 	IS_SUBPLATFORM(i915, INTEL_HASWELL, INTEL_SUBPLATFORM_ULX)
-#define IS_SKL_ULT(i915) \
+#define IS_SKYLAKE_ULT(i915) \
 	IS_SUBPLATFORM(i915, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULT)
-#define IS_SKL_ULX(i915) \
+#define IS_SKYLAKE_ULX(i915) \
 	IS_SUBPLATFORM(i915, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULX)
 #define IS_KBL_ULT(i915) \
 	IS_SUBPLATFORM(i915, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULT)
 #define IS_KBL_ULX(i915) \
 	IS_SUBPLATFORM(i915, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULX)
-#define IS_SKL_GT2(i915)	(IS_SKYLAKE(i915) && \
+#define IS_SKYLAKE_GT2(i915)	(IS_SKYLAKE(i915) && \
 				 INTEL_INFO(i915)->gt == 2)
-#define IS_SKL_GT3(i915)	(IS_SKYLAKE(i915) && \
+#define IS_SKYLAKE_GT3(i915)	(IS_SKYLAKE(i915) && \
 				 INTEL_INFO(i915)->gt == 3)
-#define IS_SKL_GT4(i915)	(IS_SKYLAKE(i915) && \
+#define IS_SKYLAKE_GT4(i915)	(IS_SKYLAKE(i915) && \
 				 INTEL_INFO(i915)->gt == 4)
 #define IS_KBL_GT2(i915)	(IS_KABYLAKE(i915) && \
 				 INTEL_INFO(i915)->gt == 2)
@@ -648,7 +648,6 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 #define IS_TGL_UY(i915) \
 	IS_SUBPLATFORM(i915, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_UY)
 
-#define IS_SKL_GRAPHICS_STEP(p, since, until) (IS_SKYLAKE(p) && IS_GRAPHICS_STEP(p, since, until))
 
 #define IS_KBL_GRAPHICS_STEP(i915, since, until) \
 	(IS_KABYLAKE(i915) && IS_GRAPHICS_STEP(i915, since, until))
@@ -799,7 +798,7 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 
 /* WaRsDisableCoarsePowerGating:skl,cnl */
 #define NEEDS_WaRsDisableCoarsePowerGating(i915)			\
-	(IS_SKL_GT3(i915) || IS_SKL_GT4(i915))
+	(IS_SKYLAKE_GT3(i915) || IS_SKYLAKE_GT4(i915))
 
 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
  * rows, which changed the alignment requirements and fence programming.