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From:   Yong Wu <yong.wu@mediatek.com>
To:     Joerg Roedel <joro@8bytes.org>, Rob Herring <robh+dt@kernel.org>,
        "Matthias Brugger" <matthias.bgg@gmail.com>,
        Will Deacon <will@kernel.org>
CC:     Robin Murphy <robin.murphy@arm.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        Tomasz Figa <tfiga@chromium.org>,
        <linux-mediatek@lists.infradead.org>,
        <srv_heupstream@mediatek.com>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <iommu@lists.linux-foundation.org>,
        Hsin-Yi Wang <hsinyi@chromium.org>, <yong.wu@mediatek.com>,
        <youlin.pei@mediatek.com>, <anan.sun@mediatek.com>,
        <xueqi.zhang@mediatek.com>, <yen-chang.chen@mediatek.com>,
        "AngeloGioacchino Del Regno" 
        <angelogioacchino.delregno@collabora.com>,
        <mingyuan.ma@mediatek.com>, <yf.wang@mediatek.com>,
        <libo.kang@mediatek.com>, <chengci.xu@mediatek.com>
Subject: [PATCH v4 27/35] iommu/mediatek: Remove mtk_iommu.h
Date:   Tue, 25 Jan 2022 16:56:26 +0800
Message-ID: <20220125085634.17972-28-yong.wu@mediatek.com>
In-Reply-To: <20220125085634.17972-1-yong.wu@mediatek.com>
References: <20220125085634.17972-1-yong.wu@mediatek.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

Currently there is only compare_of/release_of/a suspend structure in the
header file. I think it is no need to keep a header file only for these.
Move these into the c file and rm this header file.

I think there should be a common helper for compare_of and release_of.
There is many copy in drm, it should be another topic.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
 drivers/iommu/mtk_iommu.c    | 25 ++++++++++++++++++++-
 drivers/iommu/mtk_iommu.h    | 42 ------------------------------------
 drivers/iommu/mtk_iommu_v1.c | 21 +++++++++++++++---
 3 files changed, 42 insertions(+), 46 deletions(-)
 delete mode 100644 drivers/iommu/mtk_iommu.h

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 80c1e5a75868..f88c7bb235bf 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -14,6 +14,7 @@
 #include <linux/io.h>
 #include <linux/iommu.h>
 #include <linux/iopoll.h>
+#include <linux/io-pgtable.h>
 #include <linux/list.h>
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
@@ -30,7 +31,7 @@
 #include <asm/barrier.h>
 #include <soc/mediatek/smi.h>
 
-#include "mtk_iommu.h"
+#include <dt-bindings/memory/mtk-memory-port.h>
 
 #define REG_MMU_PT_BASE_ADDR			0x000
 #define MMU_PT_ADDR_MASK			GENMASK(31, 7)
@@ -166,6 +167,17 @@ struct mtk_iommu_iova_region {
 	unsigned long long	size;
 };
 
+struct mtk_iommu_suspend_reg {
+	u32			misc_ctrl;
+	u32			dcm_dis;
+	u32			ctrl_reg;
+	u32			int_control0;
+	u32			int_main_control;
+	u32			ivrp_paddr;
+	u32			vld_pa_rng;
+	u32			wr_len_ctrl;
+};
+
 struct mtk_iommu_plat_data {
 	enum mtk_iommu_plat			m4u_plat;
 	u32					flags;
@@ -219,6 +231,17 @@ struct mtk_iommu_domain {
 	struct mutex			mutex; /* Protect "data" in this structure */
 };
 
+/* TODO: A common helper is expected. */
+static inline int compare_of(struct device *dev, void *data)
+{
+	return dev->of_node == data;
+}
+
+static inline void release_of(struct device *dev, void *data)
+{
+	of_node_put(data);
+}
+
 static inline int mtk_iommu_bind(struct device *dev)
 {
 	struct mtk_iommu_data *data = dev_get_drvdata(dev);
diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h
deleted file mode 100644
index d332f9769f83..000000000000
--- a/drivers/iommu/mtk_iommu.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2015-2016 MediaTek Inc.
- * Author: Honghui Zhang <honghui.zhang@mediatek.com>
- */
-
-#ifndef _MTK_IOMMU_H_
-#define _MTK_IOMMU_H_
-
-#include <linux/device.h>
-#include <linux/io.h>
-#include <linux/io-pgtable.h>
-#include <linux/iommu.h>
-#include <linux/spinlock.h>
-#include <soc/mediatek/smi.h>
-#include <dt-bindings/memory/mtk-memory-port.h>
-
-struct mtk_iommu_suspend_reg {
-	union {
-		u32			standard_axi_mode;/* v1 */
-		u32			misc_ctrl;/* v2 */
-	};
-	u32				dcm_dis;
-	u32				ctrl_reg;
-	u32				int_control0;
-	u32				int_main_control;
-	u32				ivrp_paddr;
-	u32				vld_pa_rng;
-	u32				wr_len_ctrl;
-};
-
-static inline int compare_of(struct device *dev, void *data)
-{
-	return dev->of_node == data;
-}
-
-static inline void release_of(struct device *dev, void *data)
-{
-	of_node_put(data);
-}
-
-#endif
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index b762a05328d4..23c3bc175153 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -7,7 +7,6 @@
  *
  * Based on driver/iommu/mtk_iommu.c
  */
-#include <linux/memblock.h>
 #include <linux/bug.h>
 #include <linux/clk.h>
 #include <linux/component.h>
@@ -28,10 +27,9 @@
 #include <linux/spinlock.h>
 #include <asm/barrier.h>
 #include <asm/dma-iommu.h>
-#include <linux/init.h>
+#include <dt-bindings/memory/mtk-memory-port.h>
 #include <dt-bindings/memory/mt2701-larb-port.h>
 #include <soc/mediatek/smi.h>
-#include "mtk_iommu.h"
 
 #define REG_MMU_PT_BASE_ADDR			0x000
 
@@ -87,6 +85,13 @@
  */
 #define M2701_IOMMU_PGT_SIZE			SZ_4M
 
+struct mtk_iommu_suspend_reg {
+	u32			standard_axi_mode;
+	u32			dcm_dis;
+	u32			ctrl_reg;
+	u32			int_control0;
+};
+
 struct mtk_iommu_data {
 	void __iomem			*base;
 	int				irq;
@@ -110,6 +115,16 @@ struct mtk_iommu_domain {
 	struct mtk_iommu_data		*data;
 };
 
+static inline int compare_of(struct device *dev, void *data)
+{
+	return dev->of_node == data;
+}
+
+static inline void release_of(struct device *dev, void *data)
+{
+	of_node_put(data);
+}
+
 static inline int mtk_iommu_bind(struct device *dev)
 {
 	struct mtk_iommu_data *data = dev_get_drvdata(dev);
-- 
2.18.0