From: Justin Yeh <justin.yeh@mediatek•com>
To: Matthias Brugger <matthias.bgg@gmail•com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora•com>
Cc: <Project_Global_Chrome_Upstream_Group@mediatek•com>,
<linux-kernel@vger•kernel.org>,
<linux-arm-kernel@lists•infradead.org>,
<linux-mediatek@lists•infradead.org>,
Justin Yeh <justin.yeh@mediatek•com>
Subject: [PATCH 2/2] soc: mediatek: mtk-infracfg: Export symbols for DDK modules
Date: Fri, 29 May 2026 18:16:03 +0800 [thread overview]
Message-ID: <20260529101613.55697-3-justin.yeh@mediatek.com> (raw)
In-Reply-To: <20260529101613.55697-1-justin.yeh@mediatek.com>
Export mtk_infracfg functions to allow other DDK modules (like
mtk-scpsys) to use bus protection APIs.
Changes:
- Add EXPORT_SYMBOL_GPL for set/clear bus_protection and init functions
- Remove static and __init qualifiers from mtk_infracfg_init
- Add mtk_infracfg_init() declaration to header
- Remove postcore_initcall, let dependent modules call init explicitly
- Add #include <linux/module.h> for export macros
- Add MODULE_LICENSE("GPL") metadata
This allows mtk-infracfg to be built as a DDK module (.ko) and its
functions to be used by other modules like mtk-scpsys for power domain
management.
Signed-off-by: Justin Yeh <justin.yeh@mediatek•com>
---
drivers/soc/mediatek/mtk-infracfg.c | 9 +++++++--
include/linux/soc/mediatek/infracfg.h | 1 +
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/soc/mediatek/mtk-infracfg.c b/drivers/soc/mediatek/mtk-infracfg.c
index 2acf19676af2..8a88805468cc 100644
--- a/drivers/soc/mediatek/mtk-infracfg.c
+++ b/drivers/soc/mediatek/mtk-infracfg.c
@@ -7,6 +7,7 @@
#include <linux/jiffies.h>
#include <linux/regmap.h>
#include <linux/mfd/syscon.h>
+#include <linux/module.h>
#include <linux/soc/mediatek/infracfg.h>
#include <asm/processor.h>
@@ -43,6 +44,7 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
return ret;
}
+EXPORT_SYMBOL_GPL(mtk_infracfg_set_bus_protection);
/**
* mtk_infracfg_clear_bus_protection - disable bus protection
@@ -73,8 +75,9 @@ int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask,
return ret;
}
+EXPORT_SYMBOL_GPL(mtk_infracfg_clear_bus_protection);
-static int __init mtk_infracfg_init(void)
+int mtk_infracfg_init(void)
{
struct regmap *infracfg;
@@ -90,4 +93,6 @@ static int __init mtk_infracfg_init(void)
MT8192_INFRA_CTRL_DISABLE_MFG2ACP);
return 0;
}
-postcore_initcall(mtk_infracfg_init);
+EXPORT_SYMBOL_GPL(mtk_infracfg_init);
+
+MODULE_LICENSE("GPL");
diff --git a/include/linux/soc/mediatek/infracfg.h b/include/linux/soc/mediatek/infracfg.h
index 9956e18c5ffa..847431a7b967 100644
--- a/include/linux/soc/mediatek/infracfg.h
+++ b/include/linux/soc/mediatek/infracfg.h
@@ -454,4 +454,5 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
bool reg_update);
int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask,
bool reg_update);
+int mtk_infracfg_init(void);
#endif /* __SOC_MEDIATEK_INFRACFG_H */
--
2.45.2
prev parent reply other threads:[~2026-05-29 10:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-29 10:16 [PATCH 0/2] soc: mediatek: Make mtk-infracfg modular Justin Yeh
2026-05-29 10:16 ` [PATCH 1/2] soc: mediatek: Allow MTK_INFRACFG to be built as module Justin Yeh
2026-05-29 10:16 ` Justin Yeh [this message]
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