drm/i915/power: relocate {SKL,ICL}_PW_CTL_IDX_TO_PG()

Move the {SKL,ICL}_PW_CTL_IDX_TO_PG() macros from intel_display_regs.h
to intel_display_power_well.c. The mapping from index to PG can be
hidden there.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/18e40b77eeb3517a056f1e567672163ec568ec55.1750855148.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Author: jnikula

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

@@ -34,6 +34,19 @@
 #include "vlv_iosf_sb_reg.h"
 #include "vlv_sideband.h"
 
+/*
+ * PG0 is HW controlled, so doesn't have a corresponding power well control knob
+ * SKL_DISP_PW1_IDX..SKL_DISP_PW2_IDX -> PG1..PG2
+ */
+#define  SKL_PW_CTL_IDX_TO_PG(pw_idx)		\
+	((pw_idx) - SKL_PW_CTL_IDX_PW_1 + SKL_PG1)
+/*
+ * PG0 is HW controlled, so doesn't have a corresponding power well control knob
+ * ICL_DISP_PW1_IDX..ICL_DISP_PW4_IDX -> PG1..PG4
+ */
+#define  ICL_PW_CTL_IDX_TO_PG(pw_idx)		\
+	((pw_idx) - ICL_PW_CTL_IDX_PW_1 + SKL_PG1)
+
 struct i915_power_well_regs {
 	i915_reg_t bios;
 	i915_reg_t driver;

drivers/gpu/drm/i915/display/intel_display_regs.h

@@ -2206,18 +2206,6 @@ enum skl_power_gate {
 
 #define SKL_FUSE_STATUS				_MMIO(0x42000)
 #define  SKL_FUSE_DOWNLOAD_STATUS		(1 << 31)
-/*
- * PG0 is HW controlled, so doesn't have a corresponding power well control knob
- * SKL_DISP_PW1_IDX..SKL_DISP_PW2_IDX -> PG1..PG2
- */
-#define  SKL_PW_CTL_IDX_TO_PG(pw_idx)		\
-	((pw_idx) - SKL_PW_CTL_IDX_PW_1 + SKL_PG1)
-/*
- * PG0 is HW controlled, so doesn't have a corresponding power well control knob
- * ICL_DISP_PW1_IDX..ICL_DISP_PW4_IDX -> PG1..PG4
- */
-#define  ICL_PW_CTL_IDX_TO_PG(pw_idx)		\
-	((pw_idx) - ICL_PW_CTL_IDX_PW_1 + SKL_PG1)
 #define  SKL_FUSE_PG_DIST_STATUS(pg)		(1 << (27 - (pg)))
 
 /* Per-pipe DDI Function Control */