1 files changed, 52 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_i2c.h b/drivers/gpu/drm/nouveau/nouveau_i2c.h
new file mode 100644
index 000000000000..c8eaf7a9fcbb
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_i2c.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2009 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.
+ */
+
+#ifndef __NOUVEAU_I2C_H__
+#define __NOUVEAU_I2C_H__
+
+#include <linux/i2c.h>
+#include <linux/i2c-id.h>
+#include <linux/i2c-algo-bit.h>
+#include "drm_dp_helper.h"
+
+struct dcb_i2c_entry;
+
+struct nouveau_i2c_chan {
+        struct i2c_adapter adapter;
+        struct drm_device *dev;
+        union {
+                struct i2c_algo_bit_data bit;
+                struct i2c_algo_dp_aux_data dp;
+        } algo;
+        unsigned rd;
+        unsigned wr;
+        unsigned data;
+};
+
+int nouveau_i2c_init(struct drm_device *, struct dcb_i2c_entry *, int index);
+void nouveau_i2c_fini(struct drm_device *, struct dcb_i2c_entry *);
+struct nouveau_i2c_chan *nouveau_i2c_find(struct drm_device *, int index);
+
+int nouveau_dp_i2c_aux_ch(struct i2c_adapter *, int mode, uint8_t write_byte,
+                          uint8_t *read_byte);
+
+#endif /* __NOUVEAU_I2C_H__ */