Commit 9a13ff8f authored by Melissa Wen's avatar Melissa Wen Committed by Alex Deucher
Browse files

drm/amd/display: remove unused _calculate_degamma_curve function 



We don't use this function anywhere, therefore, remove it.

Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarMelissa Wen <mwen@igalia.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 62f9286f

drivers/gpu/drm/amd/display/modules/color/color_gamma.c

+0 −86
Original line number Diff line number Diff line
@@ -2217,89 +2217,3 @@ bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf, 
rgb_user_alloc_fail:

	return ret;

}
 


bool  mod_color_calculate_degamma_curve(enum dc_transfer_func_predefined trans,

				struct dc_transfer_func_distributed_points *points)

{

	uint32_t i;

	bool ret = false;

	struct pwl_float_data_ex *rgb_degamma = NULL;



	if (trans == TRANSFER_FUNCTION_UNITY ||

		trans == TRANSFER_FUNCTION_LINEAR) {



		for (i = 0; i <= MAX_HW_POINTS ; i++) {

			points->red[i]    = coordinates_x[i].x;

			points->green[i]  = coordinates_x[i].x;

			points->blue[i]   = coordinates_x[i].x;

		}

		ret = true;

	} else if (trans == TRANSFER_FUNCTION_PQ) {

		rgb_degamma = kvcalloc(MAX_HW_POINTS + _EXTRA_POINTS,

				       sizeof(*rgb_degamma),

				       GFP_KERNEL);

		if (!rgb_degamma)

			goto rgb_degamma_alloc_fail;





		build_de_pq(rgb_degamma,

				MAX_HW_POINTS,

				coordinates_x);

		for (i = 0; i <= MAX_HW_POINTS ; i++) {

			points->red[i]    = rgb_degamma[i].r;

			points->green[i]  = rgb_degamma[i].g;

			points->blue[i]   = rgb_degamma[i].b;

		}

		ret = true;



		kvfree(rgb_degamma);

	} else if (trans == TRANSFER_FUNCTION_SRGB ||

		trans == TRANSFER_FUNCTION_BT709 ||

		trans == TRANSFER_FUNCTION_GAMMA22 ||

		trans == TRANSFER_FUNCTION_GAMMA24 ||

		trans == TRANSFER_FUNCTION_GAMMA26) {

		rgb_degamma = kvcalloc(MAX_HW_POINTS + _EXTRA_POINTS,

				       sizeof(*rgb_degamma),

				       GFP_KERNEL);

		if (!rgb_degamma)

			goto rgb_degamma_alloc_fail;



		build_degamma(rgb_degamma,

				MAX_HW_POINTS,

				coordinates_x,

				trans);

		for (i = 0; i <= MAX_HW_POINTS ; i++) {

			points->red[i]    = rgb_degamma[i].r;

			points->green[i]  = rgb_degamma[i].g;

			points->blue[i]   = rgb_degamma[i].b;

		}

		ret = true;



		kvfree(rgb_degamma);

	} else if (trans == TRANSFER_FUNCTION_HLG) {

		rgb_degamma = kvcalloc(MAX_HW_POINTS + _EXTRA_POINTS,

				       sizeof(*rgb_degamma),

				       GFP_KERNEL);

		if (!rgb_degamma)

			goto rgb_degamma_alloc_fail;



		build_hlg_degamma(rgb_degamma,

				MAX_HW_POINTS,

				coordinates_x,

				80, 1000);

		for (i = 0; i <= MAX_HW_POINTS ; i++) {

			points->red[i]    = rgb_degamma[i].r;

			points->green[i]  = rgb_degamma[i].g;

			points->blue[i]   = rgb_degamma[i].b;

		}

		ret = true;

		kvfree(rgb_degamma);

	}

	points->end_exponent = 0;

	points->x_point_at_y1_red = 1;

	points->x_point_at_y1_green = 1;

	points->x_point_at_y1_blue = 1;



rgb_degamma_alloc_fail:

	return ret;

}

drivers/gpu/drm/amd/display/modules/color/color_gamma.h

+0 −3
Original line number Diff line number Diff line
@@ -115,9 +115,6 @@ bool mod_color_calculate_degamma_params(struct dc_color_caps *dc_caps, 
		struct dc_transfer_func *output_tf,

		const struct dc_gamma *ramp, bool mapUserRamp);



bool mod_color_calculate_degamma_curve(enum dc_transfer_func_predefined trans,

				struct dc_transfer_func_distributed_points *points);



bool calculate_user_regamma_coeff(struct dc_transfer_func *output_tf,

		const struct regamma_lut *regamma,

		struct calculate_buffer *cal_buffer,