drm/nouveau/volt: convert to new-style nvkm_subdev

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

5 files changed, 110 insertions, 117 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c
index cdb87e2900f1..dc8682c91cc7 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c
@@ -99,7 +99,7 @@ nvkm_cstate_prog(struct nvkm_clk *clk, struct nvkm_pstate *pstate, int cstatei)
 	}
 
 	if (volt) {
-		ret = volt->set_id(volt, cstate->voltage, +1);
+		ret = nvkm_volt_set_id(volt, cstate->voltage, +1);
 		if (ret && ret != -ENODEV) {
 			nvkm_error(subdev, "failed to raise voltage: %d\n", ret);
 			return ret;
@@ -113,7 +113,7 @@ nvkm_cstate_prog(struct nvkm_clk *clk, struct nvkm_pstate *pstate, int cstatei)
 	}
 
 	if (volt) {
-		ret = volt->set_id(volt, cstate->voltage, -1);
+		ret = nvkm_volt_set_id(volt, cstate->voltage, -1);
 		if (ret && ret != -ENODEV)
 			nvkm_error(subdev, "failed to lower voltage: %d\n", ret);
 	}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/base.c
index c1668c86f521..4752dbd33923 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/base.c
@@ -21,44 +21,39 @@
  *
  * Authors: Ben Skeggs
  */
-#include <subdev/volt.h>
+#include "priv.h"
+
 #include <subdev/bios.h>
 #include <subdev/bios/vmap.h>
 #include <subdev/bios/volt.h>
 
-static int
+int
 nvkm_volt_get(struct nvkm_volt *volt)
 {
-	if (volt->vid_get) {
-		int ret = volt->vid_get(volt), i;
-		if (ret >= 0) {
-			for (i = 0; i < volt->vid_nr; i++) {
-				if (volt->vid[i].vid == ret)
-					return volt->vid[i].uv;
-			}
-			ret = -EINVAL;
+	int ret = volt->func->vid_get(volt), i;
+	if (ret >= 0) {
+		for (i = 0; i < volt->vid_nr; i++) {
+			if (volt->vid[i].vid == ret)
+				return volt->vid[i].uv;
 		}
-		return ret;
+		ret = -EINVAL;
 	}
-	return -ENODEV;
+	return ret;
 }
 
 static int
 nvkm_volt_set(struct nvkm_volt *volt, u32 uv)
 {
 	struct nvkm_subdev *subdev = &volt->subdev;
-	if (volt->vid_set) {
-		int i, ret = -EINVAL;
-		for (i = 0; i < volt->vid_nr; i++) {
-			if (volt->vid[i].uv == uv) {
-				ret = volt->vid_set(volt, volt->vid[i].vid);
-				nvkm_debug(subdev, "set %duv: %d\n", uv, ret);
-				break;
-			}
+	int i, ret = -EINVAL;
+	for (i = 0; i < volt->vid_nr; i++) {
+		if (volt->vid[i].uv == uv) {
+			ret = volt->func->vid_set(volt, volt->vid[i].vid);
+			nvkm_debug(subdev, "set %duv: %d\n", uv, ret);
+			break;
 		}
-		return ret;
 	}
-	return -ENODEV;
+	return ret;
 }
 
 static int
@@ -83,10 +78,15 @@ nvkm_volt_map(struct nvkm_volt *volt, u8 id)
 	return id ? id * 10000 : -ENODEV;
 }
 
-static int
+int
 nvkm_volt_set_id(struct nvkm_volt *volt, u8 id, int condition)
 {
-	int ret = nvkm_volt_map(volt, id);
+	int ret;
+
+	if (volt->func->set_id)
+		return volt->func->set_id(volt, id, condition);
+
+	ret = nvkm_volt_map(volt, id);
 	if (ret >= 0) {
 		int prev = nvkm_volt_get(volt);
 		if (!condition || prev < 0 ||
@@ -135,53 +135,41 @@ nvkm_volt_parse_bios(struct nvkm_bios *bios, struct nvkm_volt *volt)
 	}
 }
 
-int
-_nvkm_volt_init(struct nvkm_object *object)
+static int
+nvkm_volt_init(struct nvkm_subdev *subdev)
 {
-	struct nvkm_volt *volt = (void *)object;
-	struct nvkm_subdev *subdev = &volt->subdev;
-	int ret;
-
-	ret = nvkm_subdev_init_old(&volt->subdev);
-	if (ret)
-		return ret;
-
-	ret = volt->get(volt);
+	struct nvkm_volt *volt = nvkm_volt(subdev);
+	int ret = nvkm_volt_get(volt);
 	if (ret < 0) {
 		if (ret != -ENODEV)
 			nvkm_debug(subdev, "current voltage unknown\n");
 		return 0;
 	}
-
 	nvkm_debug(subdev, "current voltage: %duv\n", ret);
 	return 0;
 }
 
-void
-_nvkm_volt_dtor(struct nvkm_object *object)
+static void *
+nvkm_volt_dtor(struct nvkm_subdev *subdev)
 {
-	struct nvkm_volt *volt = (void *)object;
-	nvkm_subdev_destroy(&volt->subdev);
+	return nvkm_volt(subdev);
 }
 
-int
-nvkm_volt_create_(struct nvkm_object *parent, struct nvkm_object *engine,
-		  struct nvkm_oclass *oclass, int length, void **pobject)
+static const struct nvkm_subdev_func
+nvkm_volt = {
+	.dtor = nvkm_volt_dtor,
+	.init = nvkm_volt_init,
+};
+
+void
+nvkm_volt_ctor(const struct nvkm_volt_func *func, struct nvkm_device *device,
+	       int index, struct nvkm_volt *volt)
 {
-	struct nvkm_device *device = (void *)parent;
 	struct nvkm_bios *bios = device->bios;
-	struct nvkm_volt *volt;
-	int ret, i;
-
-	ret = nvkm_subdev_create_(parent, engine, oclass, 0, "VOLT",
-				  "voltage", length, pobject);
-	volt = *pobject;
-	if (ret)
-		return ret;
+	int i;
 
-	volt->get = nvkm_volt_get;
-	volt->set = nvkm_volt_set;
-	volt->set_id = nvkm_volt_set_id;
+	nvkm_subdev_ctor(&nvkm_volt, device, index, 0, &volt->subdev);
+	volt->func = func;
 
 	/* Assuming the non-bios device should build the voltage table later */
 	if (bios)
@@ -192,16 +180,15 @@ nvkm_volt_create_(struct nvkm_object *parent, struct nvkm_object *engine,
 			nvkm_debug(&volt->subdev, "VID %02x: %duv\n",
 				   volt->vid[i].vid, volt->vid[i].uv);
 		}
-
-		/*XXX: this is an assumption.. there probably exists boards
-		 * out there with i2c-connected voltage controllers too..
-		 */
-		ret = nvkm_voltgpio_init(volt);
-		if (ret == 0) {
-			volt->vid_get = nvkm_voltgpio_get;
-			volt->vid_set = nvkm_voltgpio_set;
-		}
 	}
+}
 
-	return ret;
+int
+nvkm_volt_new_(const struct nvkm_volt_func *func, struct nvkm_device *device,
+	       int index, struct nvkm_volt **pvolt)
+{
+	if (!(*pvolt = kzalloc(sizeof(**pvolt), GFP_KERNEL)))
+		return -ENOMEM;
+	nvkm_volt_ctor(func, device, index, *pvolt);
+	return 0;
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gk20a.c
index 59fa2cf898d2..01394a05e9d8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gk20a.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gk20a.c
@@ -19,7 +19,9 @@
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  * DEALINGS IN THE SOFTWARE.
  */
-#include <subdev/volt.h>
+#define gk20a_volt(p) container_of((p), struct gk20a_volt, base)
+#include "priv.h"
+
 #ifdef __KERNEL__
 #include <nouveau_platform.h>
 #endif
@@ -101,9 +103,9 @@ gk20a_volt_calc_voltage(const struct cvb_coef *coef, int speedo)
 }
 
 static int
-gk20a_volt_vid_get(struct nvkm_volt *obj)
+gk20a_volt_vid_get(struct nvkm_volt *base)
 {
-	struct gk20a_volt *volt = container_of(obj, typeof(*volt), base);
+	struct gk20a_volt *volt = gk20a_volt(base);
 	int i, uv;
 
 	uv = regulator_get_voltage(volt->vdd);
@@ -116,9 +118,9 @@ gk20a_volt_vid_get(struct nvkm_volt *obj)
 }
 
 static int
-gk20a_volt_vid_set(struct nvkm_volt *obj, u8 vid)
+gk20a_volt_vid_set(struct nvkm_volt *base, u8 vid)
 {
-	struct gk20a_volt *volt = container_of(obj, typeof(*volt), base);
+	struct gk20a_volt *volt = gk20a_volt(base);
 	struct nvkm_subdev *subdev = &volt->base.subdev;
 
 	nvkm_debug(subdev, "set voltage as %duv\n", volt->base.vid[vid].uv);
@@ -126,9 +128,9 @@ gk20a_volt_vid_set(struct nvkm_volt *obj, u8 vid)
 }
 
 static int
-gk20a_volt_set_id(struct nvkm_volt *obj, u8 id, int condition)
+gk20a_volt_set_id(struct nvkm_volt *base, u8 id, int condition)
 {
-	struct gk20a_volt *volt = container_of(obj, typeof(*volt), base);
+	struct gk20a_volt *volt = gk20a_volt(base);
 	struct nvkm_subdev *subdev = &volt->base.subdev;
 	int prev_uv = regulator_get_voltage(volt->vdd);
 	int target_uv = volt->base.vid[id].uv;
@@ -147,27 +149,29 @@ gk20a_volt_set_id(struct nvkm_volt *obj, u8 id, int condition)
 	return ret;
 }
 
-static int
-gk20a_volt_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
-		struct nvkm_oclass *oclass, void *data, u32 size,
-		struct nvkm_object **pobject)
+static const struct nvkm_volt_func
+gk20a_volt = {
+	.vid_get = gk20a_volt_vid_get,
+	.vid_set = gk20a_volt_vid_set,
+	.set_id = gk20a_volt_set_id,
+};
+
+int
+gk20a_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt)
 {
-	struct nvkm_device *device = (void *)parent;
 	struct gk20a_volt *volt;
-	int i, ret, uv;
+	int i, uv;
+
+	if (!(volt = kzalloc(sizeof(*volt), GFP_KERNEL)))
+		return -ENOMEM;
 
-	ret = nvkm_volt_create(parent, engine, oclass, &volt);
-	*pobject = nv_object(volt);
-	if (ret)
-		return ret;
+	nvkm_volt_ctor(&gk20a_volt, device, index, &volt->base);
+	*pvolt = &volt->base;
 
 	uv = regulator_get_voltage(device->gpu->vdd);
 	nvkm_info(&volt->base.subdev, "The default voltage is %duV\n", uv);
 
 	volt->vdd = device->gpu->vdd;
-	volt->base.vid_get = gk20a_volt_vid_get;
-	volt->base.vid_set = gk20a_volt_vid_set;
-	volt->base.set_id = gk20a_volt_set_id;
 
 	volt->base.vid_nr = ARRAY_SIZE(gk20a_cvb_coef);
 	nvkm_debug(&volt->base.subdev, "%s - vid_nr = %d\n", __func__,
@@ -183,14 +187,3 @@ gk20a_volt_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 
 	return 0;
 }
-
-struct nvkm_oclass
-gk20a_volt_oclass = {
-	.handle = NV_SUBDEV(VOLT, 0xea),
-	.ofuncs = &(struct nvkm_ofuncs) {
-		.ctor = gk20a_volt_ctor,
-		.dtor = _nvkm_volt_dtor,
-		.init = _nvkm_volt_init,
-		.fini = _nvkm_volt_fini,
-	},
-};
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/nv40.c b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/nv40.c
index 16e8965c72f9..23409387abb5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/nv40.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/nv40.c
@@ -21,31 +21,24 @@
  *
  * Authors: Ben Skeggs
  */
-#include <subdev/volt.h>
+#include "priv.h"
 
-static int
-nv40_volt_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
-	       struct nvkm_oclass *oclass, void *data, u32 size,
-	       struct nvkm_object **pobject)
+static const struct nvkm_volt_func
+nv40_volt = {
+	.vid_get = nvkm_voltgpio_get,
+	.vid_set = nvkm_voltgpio_set,
+};
+
+int
+nv40_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt)
 {
 	struct nvkm_volt *volt;
 	int ret;
 
-	ret = nvkm_volt_create(parent, engine, oclass, &volt);
-	*pobject = nv_object(volt);
+	ret = nvkm_volt_new_(&nv40_volt, device, index, &volt);
+	*pvolt = volt;
 	if (ret)
 		return ret;
 
-	return 0;
+	return nvkm_voltgpio_init(volt);
 }
-
-struct nvkm_oclass
-nv40_volt_oclass = {
-	.handle = NV_SUBDEV(VOLT, 0x40),
-	.ofuncs = &(struct nvkm_ofuncs) {
-		.ctor = nv40_volt_ctor,
-		.dtor = _nvkm_volt_dtor,
-		.init = _nvkm_volt_init,
-		.fini = _nvkm_volt_fini,
-	},
-};
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/priv.h
new file mode 100644
index 000000000000..394f37c723af
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/priv.h
@@ -0,0 +1,20 @@
+#ifndef __NVKM_VOLT_PRIV_H__
+#define __NVKM_VOLT_PRIV_H__
+#define nvkm_volt(p) container_of((p), struct nvkm_volt, subdev)
+#include <subdev/volt.h>
+
+void nvkm_volt_ctor(const struct nvkm_volt_func *, struct nvkm_device *,
+		    int index, struct nvkm_volt *);
+int nvkm_volt_new_(const struct nvkm_volt_func *, struct nvkm_device *,
+		   int index, struct nvkm_volt **);
+
+struct nvkm_volt_func {
+	int (*vid_get)(struct nvkm_volt *);
+	int (*vid_set)(struct nvkm_volt *, u8 vid);
+	int (*set_id)(struct nvkm_volt *, u8 id, int condition);
+};
+
+int nvkm_voltgpio_init(struct nvkm_volt *);
+int nvkm_voltgpio_get(struct nvkm_volt *);
+int nvkm_voltgpio_set(struct nvkm_volt *, u8);
+#endif