[PATCH 02/18] drm/amd/display: Add function to create 4d19 fixed point

[Bhawanpreet Lakha]

From: Tyler DiBattista <tyler.dibattista at amd.com>

[Why]
Implemented for future use

Change-Id: Ia05b8c133aa16126f15c91a6516a94b1c4bccad4
Signed-off-by: Tyler DiBattista <tyler.dibattista at amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein at amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>
---
 drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c | 5 +++++
 drivers/gpu/drm/amd/display/include/fixed31_32.h   | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c b/drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c
index f28989860fd8..1e9a2d352068 100644
--- a/drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c
+++ b/drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c
@@ -449,6 +449,11 @@ static inline unsigned int clamp_ux_dy(
 		return min_clamp;
 }
 
+unsigned int dc_fixpt_u4d19(struct fixed31_32 arg)
+{
+	return ux_dy(arg.value, 4, 19);
+}
+
 unsigned int dc_fixpt_u3d19(struct fixed31_32 arg)
 {
 	return ux_dy(arg.value, 3, 19);
diff --git a/drivers/gpu/drm/amd/display/include/fixed31_32.h b/drivers/gpu/drm/amd/display/include/fixed31_32.h
index 52a73332befb..89ef9f6860e5 100644
--- a/drivers/gpu/drm/amd/display/include/fixed31_32.h
+++ b/drivers/gpu/drm/amd/display/include/fixed31_32.h
@@ -503,6 +503,8 @@ static inline int dc_fixpt_ceil(struct fixed31_32 arg)
  * fractional
  */
 
+unsigned int dc_fixpt_u4d19(struct fixed31_32 arg);
+
 unsigned int dc_fixpt_u3d19(struct fixed31_32 arg);
 
 unsigned int dc_fixpt_u2d19(struct fixed31_32 arg);
-- 
2.17.1