drm/i915: Drop useless PLANE_FOO_3 register defines

We only need register defines for the first two planes
on the first two pipes. Nuke everything else.

v2: Drop a few more that snuck through

Reviewed-by: Jani Nikula <jani.nikula@intel.com> #v1
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240513165842.15199-1-ville.syrjala@linux.intel.com

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

@@ -10,7 +10,6 @@
 
 #define _PLANE_CTL_1_A				0x70180
 #define _PLANE_CTL_2_A				0x70280
-#define _PLANE_CTL_3_A				0x70380
 #define   PLANE_CTL_ENABLE			REG_BIT(31)
 #define   PLANE_CTL_ARB_SLOTS_MASK		REG_GENMASK(30, 28) /* icl+ */
 #define   PLANE_CTL_ARB_SLOTS(x)		REG_FIELD_PREP(PLANE_CTL_ARB_SLOTS_MASK, (x)) /* icl+ */
@@ -76,31 +75,26 @@
 #define   PLANE_CTL_ROTATE_270			REG_FIELD_PREP(PLANE_CTL_ROTATE_MASK, 3)
 #define _PLANE_STRIDE_1_A			0x70188
 #define _PLANE_STRIDE_2_A			0x70288
-#define _PLANE_STRIDE_3_A			0x70388
 #define   PLANE_STRIDE__MASK			REG_GENMASK(11, 0)
 #define   PLANE_STRIDE_(stride)			REG_FIELD_PREP(PLANE_STRIDE__MASK, (stride))
 #define _PLANE_POS_1_A				0x7018c
 #define _PLANE_POS_2_A				0x7028c
-#define _PLANE_POS_3_A				0x7038c
 #define   PLANE_POS_Y_MASK			REG_GENMASK(31, 16)
 #define   PLANE_POS_Y(y)			REG_FIELD_PREP(PLANE_POS_Y_MASK, (y))
 #define   PLANE_POS_X_MASK			REG_GENMASK(15, 0)
 #define   PLANE_POS_X(x)			REG_FIELD_PREP(PLANE_POS_X_MASK, (x))
 #define _PLANE_SIZE_1_A				0x70190
 #define _PLANE_SIZE_2_A				0x70290
-#define _PLANE_SIZE_3_A				0x70390
 #define   PLANE_HEIGHT_MASK			REG_GENMASK(31, 16)
 #define   PLANE_HEIGHT(h)			REG_FIELD_PREP(PLANE_HEIGHT_MASK, (h))
 #define   PLANE_WIDTH_MASK			REG_GENMASK(15, 0)
 #define   PLANE_WIDTH(w)			REG_FIELD_PREP(PLANE_WIDTH_MASK, (w))
 #define _PLANE_SURF_1_A				0x7019c
 #define _PLANE_SURF_2_A				0x7029c
-#define _PLANE_SURF_3_A				0x7039c
 #define   PLANE_SURF_ADDR_MASK			REG_GENMASK(31, 12)
 #define   PLANE_SURF_DECRYPT			REG_BIT(2)
 #define _PLANE_OFFSET_1_A			0x701a4
 #define _PLANE_OFFSET_2_A			0x702a4
-#define _PLANE_OFFSET_3_A			0x703a4
 #define   PLANE_OFFSET_Y_MASK			REG_GENMASK(31, 16)
 #define   PLANE_OFFSET_Y(y)			REG_FIELD_PREP(PLANE_OFFSET_Y_MASK, (y))
 #define   PLANE_OFFSET_X_MASK			REG_GENMASK(15, 0)
@@ -145,7 +139,6 @@
 #define   PLANE_CUS_VPHASE_0_5			REG_FIELD_PREP(PLANE_CUS_VPHASE_MASK, 2)
 #define _PLANE_COLOR_CTL_1_A			0x701CC /* GLK+ */
 #define _PLANE_COLOR_CTL_2_A			0x702CC /* GLK+ */
-#define _PLANE_COLOR_CTL_3_A			0x703CC /* GLK+ */
 #define   PLANE_COLOR_PIPE_GAMMA_ENABLE			REG_BIT(30) /* Pre-ICL */
 #define   PLANE_COLOR_YUV_RANGE_CORRECTION_DISABLE	REG_BIT(28)
 #define   PLANE_COLOR_PIPE_CSC_ENABLE			REG_BIT(23) /* Pre-ICL */
@@ -234,49 +227,38 @@
 
 #define _PLANE_CTL_1_B				0x71180
 #define _PLANE_CTL_2_B				0x71280
-#define _PLANE_CTL_3_B				0x71380
 #define _PLANE_CTL_1(pipe)	_PIPE(pipe, _PLANE_CTL_1_A, _PLANE_CTL_1_B)
 #define _PLANE_CTL_2(pipe)	_PIPE(pipe, _PLANE_CTL_2_A, _PLANE_CTL_2_B)
-#define _PLANE_CTL_3(pipe)	_PIPE(pipe, _PLANE_CTL_3_A, _PLANE_CTL_3_B)
 #define PLANE_CTL(pipe, plane)	\
 	_MMIO_PLANE(plane, _PLANE_CTL_1(pipe), _PLANE_CTL_2(pipe))
 
 #define _PLANE_STRIDE_1_B			0x71188
 #define _PLANE_STRIDE_2_B			0x71288
-#define _PLANE_STRIDE_3_B			0x71388
 #define _PLANE_STRIDE_1(pipe)	\
 	_PIPE(pipe, _PLANE_STRIDE_1_A, _PLANE_STRIDE_1_B)
 #define _PLANE_STRIDE_2(pipe)	\
 	_PIPE(pipe, _PLANE_STRIDE_2_A, _PLANE_STRIDE_2_B)
-#define _PLANE_STRIDE_3(pipe)	\
-	_PIPE(pipe, _PLANE_STRIDE_3_A, _PLANE_STRIDE_3_B)
 #define PLANE_STRIDE(pipe, plane)	\
 	_MMIO_PLANE(plane, _PLANE_STRIDE_1(pipe), _PLANE_STRIDE_2(pipe))
 
 #define _PLANE_POS_1_B				0x7118c
 #define _PLANE_POS_2_B				0x7128c
-#define _PLANE_POS_3_B				0x7138c
 #define _PLANE_POS_1(pipe)	_PIPE(pipe, _PLANE_POS_1_A, _PLANE_POS_1_B)
 #define _PLANE_POS_2(pipe)	_PIPE(pipe, _PLANE_POS_2_A, _PLANE_POS_2_B)
-#define _PLANE_POS_3(pipe)	_PIPE(pipe, _PLANE_POS_3_A, _PLANE_POS_3_B)
 #define PLANE_POS(pipe, plane)	\
 	_MMIO_PLANE(plane, _PLANE_POS_1(pipe), _PLANE_POS_2(pipe))
 
 #define _PLANE_SIZE_1_B				0x71190
 #define _PLANE_SIZE_2_B				0x71290
-#define _PLANE_SIZE_3_B				0x71390
 #define _PLANE_SIZE_1(pipe)	_PIPE(pipe, _PLANE_SIZE_1_A, _PLANE_SIZE_1_B)
 #define _PLANE_SIZE_2(pipe)	_PIPE(pipe, _PLANE_SIZE_2_A, _PLANE_SIZE_2_B)
-#define _PLANE_SIZE_3(pipe)	_PIPE(pipe, _PLANE_SIZE_3_A, _PLANE_SIZE_3_B)
 #define PLANE_SIZE(pipe, plane)	\
 	_MMIO_PLANE(plane, _PLANE_SIZE_1(pipe), _PLANE_SIZE_2(pipe))
 
 #define _PLANE_SURF_1_B				0x7119c
 #define _PLANE_SURF_2_B				0x7129c
-#define _PLANE_SURF_3_B				0x7139c
 #define _PLANE_SURF_1(pipe)	_PIPE(pipe, _PLANE_SURF_1_A, _PLANE_SURF_1_B)
 #define _PLANE_SURF_2(pipe)	_PIPE(pipe, _PLANE_SURF_2_A, _PLANE_SURF_2_B)
-#define _PLANE_SURF_3(pipe)	_PIPE(pipe, _PLANE_SURF_3_A, _PLANE_SURF_3_B)
 #define PLANE_SURF(pipe, plane)	\
 	_MMIO_PLANE(plane, _PLANE_SURF_1(pipe), _PLANE_SURF_2(pipe))
 
@@ -351,7 +333,6 @@
 
 #define _PLANE_COLOR_CTL_1_B			0x711CC
 #define _PLANE_COLOR_CTL_2_B			0x712CC
-#define _PLANE_COLOR_CTL_3_B			0x713CC
 #define _PLANE_COLOR_CTL_1(pipe)	\
 	_PIPE(pipe, _PLANE_COLOR_CTL_1_A, _PLANE_COLOR_CTL_1_B)
 #define _PLANE_COLOR_CTL_2(pipe)	\