linux-kernel - [PATCH] soc: mediatek: Kconfig: Add MTK_CMDQ dependency to MTK

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Message-Id: <20230403093304.276418-1-angelogioacchino.delregno@collabora.com>
Date:   Mon,  3 Apr 2023 11:33:04 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     matthias.bgg@...il.com
Cc:     angelogioacchino.delregno@...labora.com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, kernel@...labora.com
Subject: [PATCH] soc: mediatek: Kconfig: Add MTK_CMDQ dependency to MTK_MMSYS

The mtk-mmsys and mutex drivers do have a dependency on MTK_CMDQ,
even though both can work with *or* without it: since CMDQ support
can be enabled either as module or as built-in, it is necessary to
add a depends rule in Kconfig, so that we disallow building both
mtk-mmsys and mtk-mutex as built-in if mtk-cmdq-helper is built as
a module, otherwise obvious linker issues appear.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---

This has no Fixes tag because the commit that can produce the issue that gets
prevented in this commit is already in the maintainer's tree.

 drivers/soc/mediatek/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/mediatek/Kconfig b/drivers/soc/mediatek/Kconfig
index d6b83a5508ca..a88cf04fc803 100644
--- a/drivers/soc/mediatek/Kconfig
+++ b/drivers/soc/mediatek/Kconfig
@@ -76,6 +76,7 @@ config MTK_MMSYS
 	tristate "MediaTek MMSYS Support"
 	default ARCH_MEDIATEK
 	depends on HAS_IOMEM
+	depends on MTK_CMDQ || MTK_CMDQ=n
 	help
 	  Say yes here to add support for the MediaTek Multimedia
 	  Subsystem (MMSYS).
-- 
2.40.0