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drm/amd/display: Add function to create 4d19 fixed point

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[Why]
Implemented for future use

Signed-off-by: Tyler DiBattista <tyler.dibattista@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tyler DiBattista 2019-02-11 11:22:49 -05:00 committed by Alex Deucher
parent e85c2d63a1
commit 7cef6a120e
2 changed files with 7 additions and 0 deletions
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5
drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c
View File

@ -449,6 +449,11 @@ static inline unsigned int clamp_ux_dy(
return min_clamp; 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) unsigned int dc_fixpt_u3d19(struct fixed31_32 arg)
{ {
return ux_dy(arg.value, 3, 19); return ux_dy(arg.value, 3, 19);

2
drivers/gpu/drm/amd/display/include/fixed31_32.h
View File

@ -503,6 +503,8 @@ static inline int dc_fixpt_ceil(struct fixed31_32 arg)
* fractional * fractional
*/ */
unsigned int dc_fixpt_u4d19(struct fixed31_32 arg);
unsigned int dc_fixpt_u3d19(struct fixed31_32 arg); unsigned int dc_fixpt_u3d19(struct fixed31_32 arg);
unsigned int dc_fixpt_u2d19(struct fixed31_32 arg); unsigned int dc_fixpt_u2d19(struct fixed31_32 arg);