Commit 7d67285e authored by Jiapeng Chong's avatar Jiapeng Chong Committed by Alex Deucher
Browse files

drm/amd/display: Remove the unused function link_timing_bandwidth_kbps() 



The function link_timing_bandwidth_kbps is defined in the
link_validation.c file, but not called elsewhere, so remove this unused
function.

drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_validation.c:258:10: warning: no previous prototype for ‘link_timing_bandwidth_kbps’.

Reported-by: default avatarAbaci Robot <abaci@linux.alibaba.com>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4547


Signed-off-by: default avatarJiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: default avatarHamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 6091693a

drivers/gpu/drm/amd/display/dc/link/link_validation.c

+0 −51
Original line number Diff line number Diff line
@@ -255,57 +255,6 @@ uint32_t dp_link_bandwidth_kbps( 
	return link_rate_per_lane_kbps * link_settings->lane_count / 10000 * total_data_bw_efficiency_x10000;

}



uint32_t link_timing_bandwidth_kbps(const struct dc_crtc_timing *timing)

{

	uint32_t bits_per_channel = 0;

	uint32_t kbps;



	if (timing->flags.DSC)

		return dc_dsc_stream_bandwidth_in_kbps(timing,

				timing->dsc_cfg.bits_per_pixel,

				timing->dsc_cfg.num_slices_h,

				timing->dsc_cfg.is_dp);



	switch (timing->display_color_depth) {

	case COLOR_DEPTH_666:

		bits_per_channel = 6;

		break;

	case COLOR_DEPTH_888:

		bits_per_channel = 8;

		break;

	case COLOR_DEPTH_101010:

		bits_per_channel = 10;

		break;

	case COLOR_DEPTH_121212:

		bits_per_channel = 12;

		break;

	case COLOR_DEPTH_141414:

		bits_per_channel = 14;

		break;

	case COLOR_DEPTH_161616:

		bits_per_channel = 16;

		break;

	default:

		ASSERT(bits_per_channel != 0);

		bits_per_channel = 8;

		break;

	}



	kbps = timing->pix_clk_100hz / 10;

	kbps *= bits_per_channel;



	if (timing->flags.Y_ONLY != 1) {

		/*Only YOnly make reduce bandwidth by 1/3 compares to RGB*/

		kbps *= 3;

		if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)

			kbps /= 2;

		else if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR422)

			kbps = kbps * 2 / 3;

	}



	return kbps;

}



static bool dp_validate_mode_timing(

	struct dc_link *link,

	const struct dc_crtc_timing *timing)