linux-kernel - [PATCH 5.15 222/846] drm/msm/dp: displayPort driver need algorithm rational

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Message-Id: <20220124184108.573059964@linuxfoundation.org>
Date:   Mon, 24 Jan 2022 19:35:39 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, kernelbot <kernel-bot@...inos.cn>,
        Jackie Liu <liuyun01@...inos.cn>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Rob Clark <robdclark@...omium.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 222/846] drm/msm/dp: displayPort driver need algorithm rational

From: Jackie Liu <liuyun01@...inos.cn>

[ Upstream commit 53d22794711ad630f40d59dd726bd260d77d585f ]

Let's select RATIONAL with dp driver. avoid like:

[...]
x86_64-linux-gnu-ld: drivers/gpu/drm/msm/dp/dp_catalog.o: in function `dp_catalog_ctrl_config_msa':
dp_catalog.c:(.text+0x57e): undefined reference to `rational_best_approximation'

Fixes: c943b4948b58 ("drm/msm/dp: add displayPort driver support")
Reported-by: kernelbot <kernel-bot@...inos.cn>
Signed-off-by: Jackie Liu <liuyun01@...inos.cn>
Link: https://lore.kernel.org/r/20211110070950.3355597-2-liu.yun@linux.dev
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Signed-off-by: Rob Clark <robdclark@...omium.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/msm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index 3ddf739a6f9b8..c49b239231190 100644
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -63,6 +63,7 @@ config DRM_MSM_HDMI_HDCP
 config DRM_MSM_DP
 	bool "Enable DisplayPort support in MSM DRM driver"
 	depends on DRM_MSM
+	select RATIONAL
 	default y
 	help
 	  Compile in support for DP driver in MSM DRM driver. DP external
-- 
2.34.1