Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / subdev / i2c / pad.c

diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.c
new file mode 100644 (file)
index 0000000..a242eeb
--- /dev/null
+++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2014 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "pad.h"
+
+int
+_nvkm_i2c_pad_fini(struct nvkm_object *object, bool suspend)
+{
+       struct nvkm_i2c_pad *pad = (void *)object;
+       DBG("-> NULL\n");
+       pad->port = NULL;
+       return nvkm_object_fini(&pad->base, suspend);
+}
+
+int
+_nvkm_i2c_pad_init(struct nvkm_object *object)
+{
+       struct nvkm_i2c_pad *pad = (void *)object;
+       DBG("-> PORT:%02x\n", pad->next->index);
+       pad->port = pad->next;
+       return nvkm_object_init(&pad->base);
+}
+
+int
+nvkm_i2c_pad_create_(struct nvkm_object *parent,
+                    struct nvkm_object *engine,
+                    struct nvkm_oclass *oclass, int index,
+                    int size, void **pobject)
+{
+       struct nvkm_i2c *i2c = nvkm_i2c(parent);
+       struct nvkm_i2c_port *port;
+       struct nvkm_i2c_pad *pad;
+       int ret;
+
+       list_for_each_entry(port, &i2c->ports, head) {
+               pad = nvkm_i2c_pad(port);
+               if (pad->index == index) {
+                       atomic_inc(&nv_object(pad)->refcount);
+                       *pobject = pad;
+                       return 1;
+               }
+       }
+
+       ret = nvkm_object_create_(parent, engine, oclass, 0, size, pobject);
+       pad = *pobject;
+       if (ret)
+               return ret;
+
+       pad->index = index;
+       return 0;
+}
+
+int
+_nvkm_i2c_pad_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+                  struct nvkm_oclass *oclass, void *data, u32 index,
+                  struct nvkm_object **pobject)
+{
+       struct nvkm_i2c_pad *pad;
+       int ret;
+       ret = nvkm_i2c_pad_create(parent, engine, oclass, index, &pad);
+       *pobject = nv_object(pad);
+       return ret;
+}