From: Ville Syrjälä <[email protected]>

Add some defines to specify what goes inside certain DSB
instructions.

Signed-off-by: Ville Syrjälä <[email protected]>
---
 drivers/gpu/drm/i915/display/intel_dsb.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c 
b/drivers/gpu/drm/i915/display/intel_dsb.c
index 42911abcd3ab..093b2567883d 100644
--- a/drivers/gpu/drm/i915/display/intel_dsb.c
+++ b/drivers/gpu/drm/i915/display/intel_dsb.c
@@ -70,17 +70,21 @@ struct intel_dsb {
 #define DSB_OPCODE_SHIFT               24
 #define DSB_OPCODE_NOOP                        0x0
 #define DSB_OPCODE_MMIO_WRITE          0x1
+#define   DSB_BYTE_EN                  0xf
+#define   DSB_BYTE_EN_SHIFT            20
+#define   DSB_REG_VALUE_MASK           0xfffff
 #define DSB_OPCODE_WAIT_USEC           0x2
-#define DSB_OPCODE_WAIT_LINES          0x3
+#define DSB_OPCODE_WAIT_SCANLINE       0x3
 #define DSB_OPCODE_WAIT_VBLANKS                0x4
 #define DSB_OPCODE_WAIT_DSL_IN         0x5
 #define DSB_OPCODE_WAIT_DSL_OUT                0x6
+#define   DSB_SCANLINE_UPPER_SHIFT     20
+#define   DSB_SCANLINE_LOWER_SHIFT     0
 #define DSB_OPCODE_INTERRUPT           0x7
 #define DSB_OPCODE_INDEXED_WRITE       0x9
+/* see DSB_REG_VALUE_MASK */
 #define DSB_OPCODE_POLL                        0xA
-#define DSB_BYTE_EN                    0xF
-#define DSB_BYTE_EN_SHIFT              20
-#define DSB_REG_VALUE_MASK             0xfffff
+/* see DSB_REG_VALUE_MASK */
 
 static bool assert_dsb_has_room(struct intel_dsb *dsb)
 {
-- 
2.39.3

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