drm/nouveau/subdev: add direct pointer to nvkm_device

Will be utilised in upcoming commits to remove the need for heuristics
to lookup the device a subdev belongs to.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/dispnv04/tvnv17.c

@@ -130,17 +130,17 @@ static bool
 get_tv_detect_quirks(struct drm_device *dev, uint32_t *pin_mask)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
-	struct nvif_device *device = &drm->device;
+	struct nvkm_device *device = nvxx_device(&drm->device);
 
 	/* Zotac FX5200 */
-	if (nv_device_match(nvxx_object(device), 0x0322, 0x19da, 0x1035) ||
-	    nv_device_match(nvxx_object(device), 0x0322, 0x19da, 0x2035)) {
+	if (nv_device_match(device, 0x0322, 0x19da, 0x1035) ||
+	    nv_device_match(device, 0x0322, 0x19da, 0x2035)) {
 		*pin_mask = 0xc;
 		return false;
 	}
 
 	/* MSI nForce2 IGP */
-	if (nv_device_match(nvxx_object(device), 0x01f0, 0x1462, 0x5710)) {
+	if (nv_device_match(device, 0x01f0, 0x1462, 0x5710)) {
 		*pin_mask = 0xc;
 		return false;
 	}

drivers/gpu/drm/nouveau/include/nvkm/core/device.h

@@ -49,9 +49,8 @@ int nvkm_device_list(u64 *name, int size);
 struct nvkm_device *nv_device(void *obj);
 
 static inline bool
-nv_device_match(struct nvkm_object *object, u16 dev, u16 ven, u16 sub)
+nv_device_match(struct nvkm_device *device, u16 dev, u16 ven, u16 sub)
 {
-	struct nvkm_device *device = nv_device(object);
 	return device->pdev->device == dev &&
 	       device->pdev->subsystem_vendor == ven &&
 	       device->pdev->subsystem_device == sub;

drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h

@@ -8,6 +8,9 @@
 
 struct nvkm_subdev {
 	struct nvkm_object object;
+
+	struct nvkm_device *device;
+
 	struct mutex mutex;
 	const char *name;
 	void __iomem *mmio;

drivers/gpu/drm/nouveau/nvkm/core/subdev.c

@@ -114,6 +114,9 @@ nvkm_subdev_create_(struct nvkm_object *parent, struct nvkm_object *engine,
 		struct nvkm_device *device = nv_device(parent);
 		subdev->debug = nvkm_dbgopt(device->dbgopt, subname);
 		subdev->mmio  = nv_subdev(device)->mmio;
+		subdev->device = device;
+	} else {
+		subdev->device = nv_device(subdev);
 	}
 
 	return 0;

drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c

@@ -44,6 +44,7 @@ static int
 nvkm_gpio_find(struct nvkm_gpio *gpio, int idx, u8 tag, u8 line,
 	       struct dcb_gpio_func *func)
 {
+	struct nvkm_device *device = gpio->base.device;
 	struct nvkm_bios *bios = nvkm_bios(gpio);
 	u8  ver, len;
 	u16 data;
@@ -56,7 +57,7 @@ nvkm_gpio_find(struct nvkm_gpio *gpio, int idx, u8 tag, u8 line,
 		return 0;
 
 	/* Apple iMac G4 NV18 */
-	if (nv_device_match(nv_object(gpio), 0x0189, 0x10de, 0x0010)) {
+	if (nv_device_match(device, 0x0189, 0x10de, 0x0010)) {
 		if (tag == DCB_GPIO_TVDAC0) {
 			*func = (struct dcb_gpio_func) {
 				.func = DCB_GPIO_TVDAC0,

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk104.c

@@ -54,7 +54,6 @@ static void
 gk104_pmu_pgob(struct nvkm_pmu *pmu, bool enable)
 {
 	struct nvkm_device *device = nv_device(pmu);
-	struct nvkm_object *dev = nv_object(device);
 
 	nv_mask(pmu, 0x000200, 0x00001000, 0x00000000);
 	nv_rd32(pmu, 0x000200);
@@ -76,8 +75,8 @@ gk104_pmu_pgob(struct nvkm_pmu *pmu, bool enable)
 	nv_mask(pmu, 0x000200, 0x00001000, 0x00001000);
 	nv_rd32(pmu, 0x000200);
 
-	if (nv_device_match(dev, 0x11fc, 0x17aa, 0x2211) /* Lenovo W541 */
-	 || nv_device_match(dev, 0x11fc, 0x17aa, 0x221e) /* Lenovo W541 */
+	if (nv_device_match(device, 0x11fc, 0x17aa, 0x2211) /* Lenovo W541 */
+	 || nv_device_match(device, 0x11fc, 0x17aa, 0x221e) /* Lenovo W541 */
 	 || nvkm_boolopt(device->cfgopt, "War00C800_0", false)) {
 		nv_info(pmu, "hw bug workaround enabled\n");
 		switch (device->chipset) {