linux-kernel - [PATCH v4 12/17] memory: mtk-smi: Get rid of mtk_smi_larb

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Date:   Sat, 30 May 2020 16:10:13 +0800
From:   Yong Wu <yong.wu@...iatek.com>
To:     Matthias Brugger <matthias.bgg@...il.com>,
        Joerg Roedel <joro@...tes.org>,
        Rob Herring <robh+dt@...nel.org>
CC:     Evan Green <evgreen@...omium.org>,
        Robin Murphy <robin.murphy@....com>,
        Tomasz Figa <tfiga@...gle.com>,
        Will Deacon <will.deacon@....com>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <iommu@...ts.linux-foundation.org>, <yong.wu@...iatek.com>,
        <youlin.pei@...iatek.com>, Nicolas Boichat <drinkcat@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>, <anan.sun@...iatek.com>,
        <cui.zhang@...iatek.com>, <chao.hao@...iatek.com>,
        <ming-fan.chen@...iatek.com>, <eizan@...omium.org>,
        <acourbot@...omium.org>
Subject: [PATCH v4 12/17] memory: mtk-smi: Get rid of mtk_smi_larb_get/put

After adding device_link between the iommu consumer and smi-larb,
the pm_runtime_get(_sync) of smi-larb and smi-common will be called
automatically. we can get rid of mtk_smi_larb_get/put.

CC: Matthias Brugger <matthias.bgg@...il.com>
Signed-off-by: Yong Wu <yong.wu@...iatek.com>
Reviewed-by: Evan Green <evgreen@...omium.org>
---
 drivers/memory/mtk-smi.c   | 14 --------------
 include/soc/mediatek/smi.h | 20 --------------------
 2 files changed, 34 deletions(-)

diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c
index 6cdefda..19c3949 100644
--- a/drivers/memory/mtk-smi.c
+++ b/drivers/memory/mtk-smi.c
@@ -125,20 +125,6 @@ static void mtk_smi_clk_disable(const struct mtk_smi *smi)
 	clk_disable_unprepare(smi->clk_apb);
 }
 
-int mtk_smi_larb_get(struct device *larbdev)
-{
-	int ret = pm_runtime_get_sync(larbdev);
-
-	return (ret < 0) ? ret : 0;
-}
-EXPORT_SYMBOL_GPL(mtk_smi_larb_get);
-
-void mtk_smi_larb_put(struct device *larbdev)
-{
-	pm_runtime_put_sync(larbdev);
-}
-EXPORT_SYMBOL_GPL(mtk_smi_larb_put);
-
 static int
 mtk_smi_larb_bind(struct device *dev, struct device *master, void *data)
 {
diff --git a/include/soc/mediatek/smi.h b/include/soc/mediatek/smi.h
index 5a34b87..f8bf595 100644
--- a/include/soc/mediatek/smi.h
+++ b/include/soc/mediatek/smi.h
@@ -20,26 +20,6 @@ struct mtk_smi_larb_iommu {
 	unsigned int   mmu;
 };
 
-/*
- * mtk_smi_larb_get: Enable the power domain and clocks for this local arbiter.
- *                   It also initialize some basic setting(like iommu).
- * mtk_smi_larb_put: Disable the power domain and clocks for this local arbiter.
- * Both should be called in non-atomic context.
- *
- * Returns 0 if successful, negative on failure.
- */
-int mtk_smi_larb_get(struct device *larbdev);
-void mtk_smi_larb_put(struct device *larbdev);
-
-#else
-
-static inline int mtk_smi_larb_get(struct device *larbdev)
-{
-	return 0;
-}
-
-static inline void mtk_smi_larb_put(struct device *larbdev) { }
-
 #endif
 
 #endif
-- 
1.9.1