1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h b/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h
new file mode 100644
index 000000000000..9ea2b12cc15d
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h
@@ -0,0 +1,64 @@
+#ifndef __NOUVEAU_GPIO_H__
+#define __NOUVEAU_GPIO_H__
+
+#include <core/subdev.h>
+#include <core/device.h>
+
+#include <subdev/bios.h>
+#include <subdev/bios/gpio.h>
+
+struct nouveau_gpio {
+	struct nouveau_subdev base;
+
+	/* hardware interfaces */
+	void (*reset)(struct nouveau_gpio *);
+	int  (*drive)(struct nouveau_gpio *, int line, int dir, int out);
+	int  (*sense)(struct nouveau_gpio *, int line);
+	void (*irq_enable)(struct nouveau_gpio *, int line, bool);
+
+	/* software interfaces */
+	int  (*find)(struct nouveau_gpio *, int idx, u8 tag, u8 line,
+		     struct dcb_gpio_func *);
+	int  (*set)(struct nouveau_gpio *, int idx, u8 tag, u8 line, int state);
+	int  (*get)(struct nouveau_gpio *, int idx, u8 tag, u8 line);
+	int  (*irq)(struct nouveau_gpio *, int idx, u8 tag, u8 line, bool on);
+
+	/* interrupt handling */
+	struct list_head isr;
+	spinlock_t lock;
+
+	void (*isr_run)(struct nouveau_gpio *, int idx, u32 mask);
+	int  (*isr_add)(struct nouveau_gpio *, int idx, u8 tag, u8 line,
+			void (*)(void *, int state), void *data);
+	void (*isr_del)(struct nouveau_gpio *, int idx, u8 tag, u8 line,
+			void (*)(void *, int state), void *data);
+};
+
+static inline struct nouveau_gpio *
+nouveau_gpio(void *obj)
+{
+	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_GPIO];
+}
+
+#define nouveau_gpio_create(p,e,o,d)                                           \
+	nouveau_gpio_create_((p), (e), (o), sizeof(**d), (void **)d)
+#define nouveau_gpio_destroy(p)                                                \
+	nouveau_subdev_destroy(&(p)->base)
+#define nouveau_gpio_fini(p,s)                                                 \
+	nouveau_subdev_fini(&(p)->base, (s))
+
+int nouveau_gpio_create_(struct nouveau_object *, struct nouveau_object *,
+			 struct nouveau_oclass *, int, void **);
+int nouveau_gpio_init(struct nouveau_gpio *);
+
+extern struct nouveau_oclass nv10_gpio_oclass;
+extern struct nouveau_oclass nv50_gpio_oclass;
+extern struct nouveau_oclass nvd0_gpio_oclass;
+
+void nv50_gpio_dtor(struct nouveau_object *);
+int  nv50_gpio_init(struct nouveau_object *);
+int  nv50_gpio_fini(struct nouveau_object *, bool);
+void nv50_gpio_intr(struct nouveau_subdev *);
+void nv50_gpio_irq_enable(struct nouveau_gpio *, int line, bool);
+
+#endif