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drm/amd/display: remove TF check for LLS policy

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[Why & How]
LLS policy not affected by TF.
Remove check in don't care case and use
 pixel format only.

Reviewed-by: Navid Assadian <navid.assadian@amd.com>
Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Samson Tam 2025-01-27 18:27:06 -05:00 committed by Alex Deucher
parent 8e539d2dd2
commit 2a4519c4e9
1 changed files with 7 additions and 24 deletions
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31
drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c
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@ -767,25 +767,13 @@ static enum scl_mode spl_get_dscl_mode(const struct spl_in *spl_in,
return SCL_MODE_SCALING_420_YCBCR_ENABLE;
}
static bool spl_choose_lls_policy(enum spl_pixel_format format,
enum spl_transfer_func_type tf_type,
enum spl_transfer_func_predefined tf_predefined_type,
static void spl_choose_lls_policy(enum spl_pixel_format format,
enum linear_light_scaling *lls_pref)
{
if (spl_is_video_format(format)) {
if (spl_is_subsampled_format(format))
*lls_pref = LLS_PREF_NO;
if ((tf_type == SPL_TF_TYPE_PREDEFINED) ||
(tf_type == SPL_TF_TYPE_DISTRIBUTED_POINTS))
return true;
} else { /* RGB or YUV444 */
if ((tf_type == SPL_TF_TYPE_PREDEFINED) ||
(tf_type == SPL_TF_TYPE_BYPASS)) {
*lls_pref = LLS_PREF_YES;
return true;
}
}
*lls_pref = LLS_PREF_NO;
return false;
else /* RGB or YUV444 */
*lls_pref = LLS_PREF_YES;
}
/* Enable EASF ?*/
@ -794,7 +782,6 @@ static bool enable_easf(struct spl_in *spl_in, struct spl_scratch *spl_scratch)
int vratio = 0;
int hratio = 0;
bool skip_easf = false;
bool lls_enable_easf = true;
if (spl_in->disable_easf)
skip_easf = true;
@ -810,17 +797,13 @@ static bool enable_easf(struct spl_in *spl_in, struct spl_scratch *spl_scratch)
skip_easf = true;
/*
* If lls_pref is LLS_PREF_DONT_CARE, then use pixel format and transfer
* function to determine whether to use LINEAR or NONLINEAR scaling
* If lls_pref is LLS_PREF_DONT_CARE, then use pixel format
* to determine whether to use LINEAR or NONLINEAR scaling
*/
if (spl_in->lls_pref == LLS_PREF_DONT_CARE)
lls_enable_easf = spl_choose_lls_policy(spl_in->basic_in.format,
spl_in->basic_in.tf_type, spl_in->basic_in.tf_predefined_type,
spl_choose_lls_policy(spl_in->basic_in.format,
&spl_in->lls_pref);
if (!lls_enable_easf)
skip_easf = true;
/* Check for linear scaling or EASF preferred */
if (spl_in->lls_pref != LLS_PREF_YES && !spl_in->prefer_easf)
skip_easf = true;