drm/mgag200: Add per-device callbacks

While currently empty, the device callbacks will allow mgag200's
modesetting code to interact with the BMC and PIXPLLC.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Tested-by: Jocelyn Falempe <jfalempe@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220728124103.30159-10-tzimmermann@suse.de

10 files changed, 48 insertions, 10 deletions

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 73e8e4e9e54b..c20a59a2cd91 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -162,13 +162,15 @@ int mgag200_device_preinit(struct mga_device *mdev)
 }
 
 int mgag200_device_init(struct mga_device *mdev, enum mga_type type,
-			const struct mgag200_device_info *info)
+			const struct mgag200_device_info *info,
+			const struct mgag200_device_funcs *funcs)
 {
 	struct drm_device *dev = &mdev->base;
 	u8 crtcext3, misc;
 	int ret;
 
 	mdev->info = info;
+	mdev->funcs = funcs;
 	mdev->type = type;
 
 	ret = drmm_mutex_init(dev, &mdev->rmmio_lock);
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
index b0433985ec0d..db29eef8981b 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -262,10 +262,14 @@ struct mgag200_device_info {
 		.bug_no_startadd = (_bug_no_startadd), \
 	}
 
+struct mgag200_device_funcs {
+};
+
 struct mga_device {
 	struct drm_device base;
 
 	const struct mgag200_device_info *info;
+	const struct mgag200_device_funcs *funcs;
 
 	struct resource			*rmmio_res;
 	void __iomem			*rmmio;
@@ -322,7 +326,8 @@ resource_size_t mgag200_probe_vram(void __iomem *mem, resource_size_t size);
 resource_size_t mgag200_device_probe_vram(struct mga_device *mdev);
 int mgag200_device_preinit(struct mga_device *mdev);
 int mgag200_device_init(struct mga_device *mdev, enum mga_type type,
-			const struct mgag200_device_info *info);
+			const struct mgag200_device_info *info,
+			const struct mgag200_device_funcs *funcs);
 
 				/* mgag200_<device type>.c */
 struct mga_device *mgag200_g200_device_create(struct pci_dev *pdev, const struct drm_driver *drv,
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200.c b/drivers/gpu/drm/mgag200/mgag200_g200.c
index 4a5af20efa36..e11b485d470d 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200.c
@@ -183,6 +183,9 @@ out:
 	pci_unmap_rom(pdev, rom);
 }
 
+static const struct mgag200_device_funcs mgag200_g200_device_funcs = {
+};
+
 struct mga_device *mgag200_g200_device_create(struct pci_dev *pdev, const struct drm_driver *drv,
 					      enum mga_type type)
 {
@@ -210,7 +213,8 @@ struct mga_device *mgag200_g200_device_create(struct pci_dev *pdev, const struct
 
 	mgag200_g200_init_refclk(g200);
 
-	ret = mgag200_device_init(mdev, type, &mgag200_g200_device_info);
+	ret = mgag200_device_init(mdev, type, &mgag200_g200_device_info,
+				  &mgag200_g200_device_funcs);
 	if (ret)
 		return ERR_PTR(ret);
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200eh.c b/drivers/gpu/drm/mgag200/mgag200_g200eh.c
index f2c53fe8d927..473ff5217db5 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200eh.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200eh.c
@@ -37,6 +37,9 @@ void mgag200_g200eh_init_registers(struct mga_device *mdev)
 static const struct mgag200_device_info mgag200_g200eh_device_info =
 	MGAG200_DEVICE_INFO_INIT(2048, 2048, 37500, false, 1, 0, false);
 
+static const struct mgag200_device_funcs mgag200_g200eh_device_funcs = {
+};
+
 struct mga_device *mgag200_g200eh_device_create(struct pci_dev *pdev, const struct drm_driver *drv,
 						enum mga_type type)
 {
@@ -60,7 +63,8 @@ struct mga_device *mgag200_g200eh_device_create(struct pci_dev *pdev, const stru
 	if (ret)
 		return ERR_PTR(ret);
 
-	ret = mgag200_device_init(mdev, type, &mgag200_g200eh_device_info);
+	ret = mgag200_device_init(mdev, type, &mgag200_g200eh_device_info,
+				  &mgag200_g200eh_device_funcs);
 	if (ret)
 		return ERR_PTR(ret);
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200eh3.c b/drivers/gpu/drm/mgag200/mgag200_g200eh3.c
index adb9190b62af..99e00aa848e1 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200eh3.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200eh3.c
@@ -13,6 +13,9 @@
 static const struct mgag200_device_info mgag200_g200eh3_device_info =
 	MGAG200_DEVICE_INFO_INIT(2048, 2048, 0, false, 1, 0, false);
 
+static const struct mgag200_device_funcs mgag200_g200eh3_device_funcs = {
+};
+
 struct mga_device *mgag200_g200eh3_device_create(struct pci_dev *pdev,
 						 const struct drm_driver *drv,
 						 enum mga_type type)
@@ -37,7 +40,8 @@ struct mga_device *mgag200_g200eh3_device_create(struct pci_dev *pdev,
 	if (ret)
 		return ERR_PTR(ret);
 
-	ret = mgag200_device_init(mdev, type, &mgag200_g200eh3_device_info);
+	ret = mgag200_device_init(mdev, type, &mgag200_g200eh3_device_info,
+				  &mgag200_g200eh3_device_funcs);
 	if (ret)
 		return ERR_PTR(ret);
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200er.c b/drivers/gpu/drm/mgag200/mgag200_g200er.c
index 8ff050906e1c..1c9a963dd9c5 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200er.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200er.c
@@ -38,6 +38,9 @@ static void mgag200_g200er_init_registers(struct mga_device *mdev)
 static const struct mgag200_device_info mgag200_g200er_device_info =
 	MGAG200_DEVICE_INFO_INIT(2048, 2048, 55000, false, 1, 0, false);
 
+static const struct mgag200_device_funcs mgag200_g200er_device_funcs = {
+};
+
 struct mga_device *mgag200_g200er_device_create(struct pci_dev *pdev, const struct drm_driver *drv,
 						enum mga_type type)
 {
@@ -57,7 +60,8 @@ struct mga_device *mgag200_g200er_device_create(struct pci_dev *pdev, const stru
 	if (ret)
 		return ERR_PTR(ret);
 
-	ret = mgag200_device_init(mdev, type, &mgag200_g200er_device_info);
+	ret = mgag200_device_init(mdev, type, &mgag200_g200er_device_info,
+				  &mgag200_g200er_device_funcs);
 	if (ret)
 		return ERR_PTR(ret);
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200ev.c b/drivers/gpu/drm/mgag200/mgag200_g200ev.c
index 0dc5c342e7c4..a0dc72a69f52 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200ev.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200ev.c
@@ -38,6 +38,9 @@ static void mgag200_g200ev_init_registers(struct mga_device *mdev)
 static const struct mgag200_device_info mgag200_g200ev_device_info =
 	MGAG200_DEVICE_INFO_INIT(2048, 2048, 32700, false, 0, 1, false);
 
+static const struct mgag200_device_funcs mgag200_g200ev_device_funcs = {
+};
+
 struct mga_device *mgag200_g200ev_device_create(struct pci_dev *pdev, const struct drm_driver *drv,
 						enum mga_type type)
 {
@@ -61,7 +64,8 @@ struct mga_device *mgag200_g200ev_device_create(struct pci_dev *pdev, const stru
 	if (ret)
 		return ERR_PTR(ret);
 
-	ret = mgag200_device_init(mdev, type, &mgag200_g200ev_device_info);
+	ret = mgag200_device_init(mdev, type, &mgag200_g200ev_device_info,
+				  &mgag200_g200ev_device_funcs);
 	if (ret)
 		return ERR_PTR(ret);
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200ew3.c b/drivers/gpu/drm/mgag200/mgag200_g200ew3.c
index a4ecdd3784a3..202db00bb62e 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200ew3.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200ew3.c
@@ -20,6 +20,9 @@ static void mgag200_g200ew3_init_registers(struct mga_device *mdev)
 static const struct mgag200_device_info mgag200_g200ew3_device_info =
 	MGAG200_DEVICE_INFO_INIT(2048, 2048, 0, true, 0, 1, false);
 
+static const struct mgag200_device_funcs mgag200_g200ew3_device_funcs = {
+};
+
 static resource_size_t mgag200_g200ew3_device_probe_vram(struct mga_device *mdev)
 {
 	resource_size_t vram_size = resource_size(mdev->vram_res);
@@ -53,7 +56,8 @@ struct mga_device *mgag200_g200ew3_device_create(struct pci_dev *pdev,
 	if (ret)
 		return ERR_PTR(ret);
 
-	ret = mgag200_device_init(mdev, type, &mgag200_g200ew3_device_info);
+	ret = mgag200_device_init(mdev, type, &mgag200_g200ew3_device_info,
+				  &mgag200_g200ew3_device_funcs);
 	if (ret)
 		return ERR_PTR(ret);
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200se.c b/drivers/gpu/drm/mgag200/mgag200_g200se.c
index bd8fc7a177c2..7a7648d7de93 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200se.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200se.c
@@ -93,6 +93,9 @@ static int mgag200_g200se_init_unique_rev_id(struct mgag200_g200se_device *g200s
 	return 0;
 }
 
+static const struct mgag200_device_funcs mgag200_g200se_device_funcs = {
+};
+
 struct mga_device *mgag200_g200se_device_create(struct pci_dev *pdev, const struct drm_driver *drv,
 						enum mga_type type)
 {
@@ -144,7 +147,7 @@ struct mga_device *mgag200_g200se_device_create(struct pci_dev *pdev, const stru
 		return ERR_PTR(-EINVAL);
 	}
 
-	ret = mgag200_device_init(mdev, type, info);
+	ret = mgag200_device_init(mdev, type, info, &mgag200_g200se_device_funcs);
 	if (ret)
 		return ERR_PTR(ret);
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200wb.c b/drivers/gpu/drm/mgag200/mgag200_g200wb.c
index 05f17986b95a..2b5dd0cc38e2 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200wb.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200wb.c
@@ -35,6 +35,9 @@ void mgag200_g200wb_init_registers(struct mga_device *mdev)
 static const struct mgag200_device_info mgag200_g200wb_device_info =
 	MGAG200_DEVICE_INFO_INIT(1280, 1024, 31877, true, 0, 1, false);
 
+static const struct mgag200_device_funcs mgag200_g200wb_device_funcs = {
+};
+
 struct mga_device *mgag200_g200wb_device_create(struct pci_dev *pdev, const struct drm_driver *drv,
 						enum mga_type type)
 {
@@ -58,7 +61,8 @@ struct mga_device *mgag200_g200wb_device_create(struct pci_dev *pdev, const stru
 	if (ret)
 		return ERR_PTR(ret);
 
-	ret = mgag200_device_init(mdev, type, &mgag200_g200wb_device_info);
+	ret = mgag200_device_init(mdev, type, &mgag200_g200wb_device_info,
+				  &mgag200_g200wb_device_funcs);
 	if (ret)
 		return ERR_PTR(ret);