[PATCH v2 5/5] soc / drm: mediatek: Move mtk mutex driver to soc folder

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From: CK Hu <ck.hu@xxxxxxxxxxxx>

mtk mutex is used by DRM and MDP driver, and its function is SoC-specific,
so move it to soc folder.

Signed-off-by: CK Hu <ck.hu@xxxxxxxxxxxx>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>
---
 drivers/gpu/drm/mediatek/Makefile                 |  3 +--
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c           |  2 +-
 drivers/gpu/drm/mediatek/mtk_drm_drv.c            |  1 -
 drivers/gpu/drm/mediatek/mtk_drm_drv.h            |  1 -
 drivers/soc/mediatek/Makefile                     |  1 +
 .../mtk_mutex.c => soc/mediatek/mtk-mutex.c}      | 15 +++++++++++++--
 .../linux/soc/mediatek/mtk-mutex.h                |  0
 7 files changed, 16 insertions(+), 7 deletions(-)
 rename drivers/{gpu/drm/mediatek/mtk_mutex.c => soc/mediatek/mtk-mutex.c} (96%)
 rename drivers/gpu/drm/mediatek/mtk_mutex.h => include/linux/soc/mediatek/mtk-mutex.h (100%)

diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
index 09979c4c340a..01d06332f767 100644
--- a/drivers/gpu/drm/mediatek/Makefile
+++ b/drivers/gpu/drm/mediatek/Makefile
@@ -9,8 +9,7 @@ mediatek-drm-y := mtk_disp_color.o \
 		  mtk_drm_gem.o \
 		  mtk_drm_plane.o \
 		  mtk_dsi.o \
-		  mtk_dpi.o \
-		  mtk_mutex.o
+		  mtk_dpi.o
 
 obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o
 
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 1e3a9450680b..e9b6788d52cd 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -7,6 +7,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/soc/mediatek/mtk-cmdq.h>
 #include <linux/soc/mediatek/mtk-mmsys.h>
+#include <linux/soc/mediatek/mtk-mutex.h>
 
 #include <asm/barrier.h>
 #include <soc/mediatek/smi.h>
@@ -22,7 +23,6 @@
 #include "mtk_drm_ddp_comp.h"
 #include "mtk_drm_gem.h"
 #include "mtk_drm_plane.h"
-#include "mtk_mutex.h"
 
 /*
  * struct mtk_drm_crtc - MediaTek specific crtc structure.
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index b99a06e6834e..5d39dd54255d 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -588,7 +588,6 @@ static struct platform_driver mtk_drm_platform_driver = {
 };
 
 static struct platform_driver * const mtk_drm_drivers[] = {
-	&mtk_mutex_driver,
 	&mtk_disp_color_driver,
 	&mtk_disp_ovl_driver,
 	&mtk_disp_rdma_driver,
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
index ae366868d01a..e8238fa4aa2a 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -46,7 +46,6 @@ struct mtk_drm_private {
 	struct drm_atomic_state *suspend_state;
 };
 
-extern struct platform_driver mtk_mutex_driver;
 extern struct platform_driver mtk_disp_color_driver;
 extern struct platform_driver mtk_disp_ovl_driver;
 extern struct platform_driver mtk_disp_rdma_driver;
diff --git a/drivers/soc/mediatek/Makefile b/drivers/soc/mediatek/Makefile
index b6908db534c2..90270f8114ed 100644
--- a/drivers/soc/mediatek/Makefile
+++ b/drivers/soc/mediatek/Makefile
@@ -6,3 +6,4 @@ obj-$(CONFIG_MTK_PMIC_WRAP) += mtk-pmic-wrap.o
 obj-$(CONFIG_MTK_SCPSYS) += mtk-scpsys.o
 obj-$(CONFIG_MTK_SCPSYS_PM_DOMAINS) += mtk-pm-domains.o
 obj-$(CONFIG_MTK_MMSYS) += mtk-mmsys.o
+obj-$(CONFIG_MTK_MMSYS) += mtk-mutex.o
diff --git a/drivers/gpu/drm/mediatek/mtk_mutex.c b/drivers/soc/mediatek/mtk-mutex.c
similarity index 96%
rename from drivers/gpu/drm/mediatek/mtk_mutex.c
rename to drivers/soc/mediatek/mtk-mutex.c
index 66344759e622..f531b119da7a 100644
--- a/drivers/gpu/drm/mediatek/mtk_mutex.c
+++ b/drivers/soc/mediatek/mtk-mutex.c
@@ -10,8 +10,7 @@
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 #include <linux/soc/mediatek/mtk-mmsys.h>
-
-#include "mtk_mutex.h"
+#include <linux/soc/mediatek/mtk-mutex.h>
 
 #define MT2701_MUTEX0_MOD0			0x2c
 #define MT2701_MUTEX0_SOF0			0x30
@@ -241,6 +240,7 @@ struct mtk_mutex *mtk_mutex_get(struct device *dev)
 
 	return ERR_PTR(-EBUSY);
 }
+EXPORT_SYMBOL_GPL(mtk_mutex_get);
 
 void mtk_mutex_put(struct mtk_mutex *mutex)
 {
@@ -251,6 +251,7 @@ void mtk_mutex_put(struct mtk_mutex *mutex)
 
 	mutex->claimed = false;
 }
+EXPORT_SYMBOL_GPL(mtk_mutex_put);
 
 int mtk_mutex_prepare(struct mtk_mutex *mutex)
 {
@@ -258,6 +259,7 @@ int mtk_mutex_prepare(struct mtk_mutex *mutex)
 						 mutex[mutex->id]);
 	return clk_prepare_enable(mtx->clk);
 }
+EXPORT_SYMBOL_GPL(mtk_mutex_prepare);
 
 void mtk_mutex_unprepare(struct mtk_mutex *mutex)
 {
@@ -265,6 +267,7 @@ void mtk_mutex_unprepare(struct mtk_mutex *mutex)
 						 mutex[mutex->id]);
 	clk_disable_unprepare(mtx->clk);
 }
+EXPORT_SYMBOL_GPL(mtk_mutex_unprepare);
 
 void mtk_mutex_add_comp(struct mtk_mutex *mutex,
 			enum mtk_ddp_comp_id id)
@@ -316,6 +319,7 @@ void mtk_mutex_add_comp(struct mtk_mutex *mutex,
 		       mtx->regs +
 		       DISP_REG_MUTEX_SOF(mtx->data->mutex_sof_reg, mutex->id));
 }
+EXPORT_SYMBOL_GPL(mtk_mutex_add_comp);
 
 void mtk_mutex_remove_comp(struct mtk_mutex *mutex,
 			   enum mtk_ddp_comp_id id)
@@ -355,6 +359,7 @@ void mtk_mutex_remove_comp(struct mtk_mutex *mutex,
 		break;
 	}
 }
+EXPORT_SYMBOL_GPL(mtk_mutex_remove_comp);
 
 void mtk_mutex_enable(struct mtk_mutex *mutex)
 {
@@ -365,6 +370,7 @@ void mtk_mutex_enable(struct mtk_mutex *mutex)
 
 	writel(1, mtx->regs + DISP_REG_MUTEX_EN(mutex->id));
 }
+EXPORT_SYMBOL_GPL(mtk_mutex_enable);
 
 void mtk_mutex_disable(struct mtk_mutex *mutex)
 {
@@ -375,6 +381,7 @@ void mtk_mutex_disable(struct mtk_mutex *mutex)
 
 	writel(0, mtx->regs + DISP_REG_MUTEX_EN(mutex->id));
 }
+EXPORT_SYMBOL_GPL(mtk_mutex_disable);
 
 void mtk_mutex_acquire(struct mtk_mutex *mutex)
 {
@@ -388,6 +395,7 @@ void mtk_mutex_acquire(struct mtk_mutex *mutex)
 				      tmp, tmp & INT_MUTEX, 1, 10000))
 		pr_err("could not acquire mutex %d\n", mutex->id);
 }
+EXPORT_SYMBOL_GPL(mtk_mutex_acquire);
 
 void mtk_mutex_release(struct mtk_mutex *mutex)
 {
@@ -396,6 +404,7 @@ void mtk_mutex_release(struct mtk_mutex *mutex)
 
 	writel(0, mtx->regs + DISP_REG_MUTEX(mutex->id));
 }
+EXPORT_SYMBOL_GPL(mtk_mutex_release);
 
 static int mtk_mutex_probe(struct platform_device *pdev)
 {
@@ -461,3 +470,5 @@ struct platform_driver mtk_mutex_driver = {
 		.of_match_table = mutex_driver_dt_match,
 	},
 };
+
+builtin_platform_driver(mtk_mutex_driver);
diff --git a/drivers/gpu/drm/mediatek/mtk_mutex.h b/include/linux/soc/mediatek/mtk-mutex.h
similarity index 100%
rename from drivers/gpu/drm/mediatek/mtk_mutex.h
rename to include/linux/soc/mediatek/mtk-mutex.h
-- 
2.17.1

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