The function __set_output_tf is only called by
amdgpu_dm_update_crtc_color_mgmt() when using atomic regamma. In this
situation, func->tf == TRANSFER_FUNCTION_LINEAR (the original if
condition) and it never falls into tf != LINEAR (the else condition).
Therefore, remove unused condition to avoid misunderstandings here.
Signed-off-by: Melissa Wen <m...@igalia.com>
---
.../amd/display/amdgpu_dm/amdgpu_dm_color.c | 32 ++++++-------------
1 file changed, 10 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
index a4cb23d059bd..10a29d131424 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
@@ -255,14 +255,13 @@ static int __set_legacy_tf(struct dc_transfer_func *func,
* @func: transfer function
* @lut: lookup table that defines the color space
* @lut_size: size of respective lut
- * @has_rom: if ROM can be used for hardcoded curve
*
* Returns:
* 0 in case of success. -ENOMEM if fails.
*/
static int __set_output_tf(struct dc_transfer_func *func,
- const struct drm_color_lut *lut, uint32_t lut_size,
- bool has_rom)
+ const struct drm_color_lut *lut,
+ uint32_t lut_size)
{
struct dc_gamma *gamma = NULL;
struct calculate_buffer cal_buffer = {0};
@@ -279,24 +278,13 @@ static int __set_output_tf(struct dc_transfer_func *func,
gamma->num_entries = lut_size;
__drm_lut_to_dc_gamma(lut, gamma, false);
- if (func->tf == TRANSFER_FUNCTION_LINEAR) {
- /*
- * Color module doesn't like calculating regamma params
- * on top of a linear input. But degamma params can be used
- * instead to simulate this.
- */
- gamma->type = GAMMA_CUSTOM;
- res = mod_color_calculate_degamma_params(NULL, func,
- gamma, true);
- } else {
- /*
- * Assume sRGB. The actual mapping will depend on whether the
- * input was legacy or not.
- */
- gamma->type = GAMMA_CS_TFM_1D;
- res = mod_color_calculate_regamma_params(func, gamma, false,
- has_rom, NULL,
&cal_buffer);
- }
+ /*
+ * Color module doesn't like calculating regamma params
+ * on top of a linear input. But degamma params can be used
+ * instead to simulate this.
+ */
+ gamma->type = GAMMA_CUSTOM;
+ res = mod_color_calculate_degamma_params(NULL, func, gamma, true);
dc_gamma_release(&gamma);
@@ -450,7 +438,7 @@ int amdgpu_dm_update_crtc_color_mgmt(struct dm_crtc_state
*crtc)
stream->out_transfer_func->tf = TRANSFER_FUNCTION_LINEAR;
r = __set_output_tf(stream->out_transfer_func, regamma_lut,
- regamma_size, has_rom);
+ regamma_size);
if (r)
return r;
} else {
--
2.35.1
