[PATCH 02/19] drm/i915/dss_regs: Use REG_* macros for the DSS ctl bits

[Ankit Nautiyal]

Cleanup register definitions for DSS CLT reg bits.
Replace the hand rolled (1<<n) with the modern REG_BIT().
Use REG_GENMASK and REG_FIELD_PREP for the bit fields.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dss_regs.h | 34 ++++++++++---------
 1 file changed, 18 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dss_regs.h b/drivers/gpu/drm/i915/display/intel_dss_regs.h
index b1e24ea027c3..cfc8ef451917 100644
--- a/drivers/gpu/drm/i915/display/intel_dss_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_dss_regs.h
@@ -10,35 +10,37 @@
 
 /* Display Stream Splitter Control */
 #define DSS_CTL1				_MMIO(0x67400)
-#define  SPLITTER_ENABLE			(1 << 31)
-#define  JOINER_ENABLE				(1 << 30)
-#define  DUAL_LINK_MODE_INTERLEAVE		(1 << 24)
+#define  SPLITTER_ENABLE			REG_BIT(31)
+#define  JOINER_ENABLE				REG_BIT(30)
+#define  DUAL_LINK_MODE_INTERLEAVE		REG_BIT(24)
 #define  DUAL_LINK_MODE_FRONTBACK		(0 << 24)
-#define  OVERLAP_PIXELS_MASK			(0xf << 16)
-#define  OVERLAP_PIXELS(pixels)			((pixels) << 16)
-#define  LEFT_DL_BUF_TARGET_DEPTH_MASK		(0xfff << 0)
-#define  LEFT_DL_BUF_TARGET_DEPTH(pixels)	((pixels) << 0)
+#define  OVERLAP_PIXELS_MASK			REG_GENMASK(19, 16)
+#define  OVERLAP_PIXELS(pixels)			REG_FIELD_PREP(OVERLAP_PIXELS_MASK, pixels)
+#define  LEFT_DL_BUF_TARGET_DEPTH_MASK		REG_GENMASK(11, 0)
+#define  LEFT_DL_BUF_TARGET_DEPTH(pixels)	REG_FIELD_PREP(LEFT_DL_BUF_TARGET_DEPTH_MASK, \
+							       pixels)
 #define  MAX_DL_BUFFER_TARGET_DEPTH		0x5a0
 
 #define DSS_CTL2				_MMIO(0x67404)
-#define  LEFT_BRANCH_VDSC_ENABLE		(1 << 31)
-#define  RIGHT_BRANCH_VDSC_ENABLE		(1 << 15)
-#define  RIGHT_DL_BUF_TARGET_DEPTH_MASK		(0xfff << 0)
-#define  RIGHT_DL_BUF_TARGET_DEPTH(pixels)	((pixels) << 0)
+#define  LEFT_BRANCH_VDSC_ENABLE		REG_BIT(31)
+#define  RIGHT_BRANCH_VDSC_ENABLE		REG_BIT(15)
+#define  RIGHT_DL_BUF_TARGET_DEPTH_MASK		REG_GENMASK(11, 0)
+#define  RIGHT_DL_BUF_TARGET_DEPTH(pixels)	REG_FIELD_PREP(RIGHT_DL_BUF_TARGET_DEPTH_MASK,\
+							       pixels)
 
 #define _ICL_PIPE_DSS_CTL1_PB			0x78200
 #define _ICL_PIPE_DSS_CTL1_PC			0x78400
 #define ICL_PIPE_DSS_CTL1(pipe)			_MMIO_PIPE((pipe) - PIPE_B, \
 							   _ICL_PIPE_DSS_CTL1_PB, \
 							   _ICL_PIPE_DSS_CTL1_PC)
-#define  BIG_JOINER_ENABLE			(1 << 29)
-#define  PRIMARY_BIG_JOINER_ENABLE		(1 << 28)
-#define  VGA_CENTERING_ENABLE			(1 << 27)
+#define  BIG_JOINER_ENABLE			REG_BIT(29)
+#define  PRIMARY_BIG_JOINER_ENABLE		REG_BIT(28)
+#define  VGA_CENTERING_ENABLE			REG_BIT(27)
 #define  SPLITTER_CONFIGURATION_MASK		REG_GENMASK(26, 25)
 #define  SPLITTER_CONFIGURATION_2_SEGMENT	REG_FIELD_PREP(SPLITTER_CONFIGURATION_MASK, 0)
 #define  SPLITTER_CONFIGURATION_4_SEGMENT	REG_FIELD_PREP(SPLITTER_CONFIGURATION_MASK, 1)
-#define  UNCOMPRESSED_JOINER_PRIMARY		(1 << 21)
-#define  UNCOMPRESSED_JOINER_SECONDARY		(1 << 20)
+#define  UNCOMPRESSED_JOINER_PRIMARY		REG_BIT(21)
+#define  UNCOMPRESSED_JOINER_SECONDARY		REG_BIT(20)
 
 #define _ICL_PIPE_DSS_CTL2_PB			0x78204
 #define _ICL_PIPE_DSS_CTL2_PC			0x78404
-- 
2.45.2