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Commit 56d98497 authored by Tatenda Chipeperekwa's avatar Tatenda Chipeperekwa
Browse files

disp: msm: dp: add mixer count check in dp mode validation 



Add mixer count check in dp mode validation for mdp clock.

Change-Id: I37fe3037d7f7efc7bdc2a7446457af8a8e34684c
Signed-off-by: default avatarXiaowen Wu <wxiaowen@codeaurora.org>
Signed-off-by: default avatarTatenda Chipeperekwa <tatendac@codeaurora.org>
parent 27ec7895

msm/sde/sde_kms.c

+9 −2
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2014-2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2014-2020, The Linux Foundation. All rights reserved.

 * Copyright (C) 2013 Red Hat

 * Author: Rob Clark <robdclark@gmail.com>

 *
@@ -2431,8 +2431,15 @@ static int sde_kms_get_mixer_count(const struct msm_kms *kms, 
	temp = drm_fixp_mul(temp, vrefresh_fp);

	mode_clock_hz = drm_fixp_mul(temp, mdp_fudge_factor);

	if (mode_clock_hz > max_mdp_clock_hz ||

			mode->hdisplay > res->max_mixer_width)

			mode->hdisplay > res->max_mixer_width) {

		*num_lm = 2;

		if ((mode_clock_hz >> 1) > max_mdp_clock_hz) {

			SDE_DEBUG("[%s] clock %d exceeds max_mdp_clk %d\n",

					mode->name, mode_clock_hz,

					max_mdp_clock_hz);

			return -EINVAL;

		}

	}

	SDE_DEBUG("[%s] h=%d, v=%d, fps=%d, max_mdp_clk_hz=%llu, num_lm=%d\n",

			mode->name, mode->htotal, mode->vtotal, mode->vrefresh,

			sde_kms->perf.max_core_clk_rate, *num_lm);