linux-kernel - [PATCH] soc: mediatek: mtk-mmsys: Export ddp

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Message-Id: <20200326182742.487026-1-enric.balletbo@collabora.com>
Date:   Thu, 26 Mar 2020 19:27:42 +0100
From:   Enric Balletbo i Serra <enric.balletbo@...labora.com>
To:     linux-kernel@...r.kernel.org
Cc:     Collabora Kernel ML <kernel@...labora.com>, matthias.bgg@...il.com,
        drinkcat@...omium.org, hsinyi@...omium.org,
        Anders Roxell <anders.roxell@...aro.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH] soc: mediatek: mtk-mmsys: Export ddp_dis/connect symbols

When building on arm64 with allmodconfig or CONFIG_DRM_MEDIATEK=m we see
the following error.

  ERROR: modpost: "mtk_mmsys_ddp_disconnect"
  [drivers/gpu/drm/mediatek/mediatek-drm.ko] undefined!
  ERROR: modpost: "mtk_mmsys_ddp_connect"
  [drivers/gpu/drm/mediatek/mediatek-drm.ko] undefined!

Export mtk_mmsys_ddp_connect and mtk_mmsys_ddp_disconnect symbols to be
able to be used for other modules.

Fixes: 396c3fccaf03 ("soc / drm: mediatek: Move routing control to mmsys device")
Reported-by: Anders Roxell <anders.roxell@...aro.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
---

 drivers/soc/mediatek/mtk-mmsys.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
index 32a92ec447c5..05e322c9c301 100644
--- a/drivers/soc/mediatek/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mtk-mmsys.c
@@ -259,6 +259,7 @@ void mtk_mmsys_ddp_connect(struct device *dev,
 		writel_relaxed(reg, config_regs + addr);
 	}
 }
+EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_connect);
 
 void mtk_mmsys_ddp_disconnect(struct device *dev,
 			      enum mtk_ddp_comp_id cur,
@@ -279,6 +280,7 @@ void mtk_mmsys_ddp_disconnect(struct device *dev,
 		writel_relaxed(reg, config_regs + addr);
 	}
 }
+EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_disconnect);
 
 static int mtk_mmsys_probe(struct platform_device *pdev)
 {
-- 
2.25.1