diff --git a/README b/README
index 69c68fb4a10908..634ed79f6c243f 100644
--- a/README
+++ b/README
@@ -402,3 +402,5 @@ IF SOMETHING GOES WRONG:
    gdb'ing a non-running kernel currently fails because gdb (wrongly)
    disregards the starting offset for which the kernel is compiled.
 
+
+2016/12/11 CaiBirdZhang first commit
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
deleted file mode 100644
index 1c18860f80d107..00000000000000
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * 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.
- *
- * Authors: Ben Skeggs
- */
-#include "priv.h"
-
-int
-nv_rdaux(struct nvkm_i2c_port *port, u32 addr, u8 *data, u8 size)
-{
-	struct nvkm_i2c *i2c = nvkm_i2c(port);
-	if (port->func->aux) {
-		int ret = i2c->acquire(port, 0);
-		if (ret == 0) {
-			ret = port->func->aux(port, true, 9, addr, data, size);
-			i2c->release(port);
-		}
-		return ret;
-	}
-	return -ENODEV;
-}
-
-int
-nv_wraux(struct nvkm_i2c_port *port, u32 addr, u8 *data, u8 size)
-{
-	struct nvkm_i2c *i2c = nvkm_i2c(port);
-	if (port->func->aux) {
-		int ret = i2c->acquire(port, 0);
-		if (ret == 0) {
-			ret = port->func->aux(port, true, 8, addr, data, size);
-			i2c->release(port);
-		}
-		return ret;
-	}
-	return -ENODEV;
-}
-
-static int
-aux_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
-{
-	struct nvkm_i2c_port *port = adap->algo_data;
-	struct nvkm_i2c *i2c = nvkm_i2c(port);
-	struct i2c_msg *msg = msgs;
-	int ret, mcnt = num;
-
-	if (!port->func->aux)
-		return -ENODEV;
-
-	ret = i2c->acquire(port, 0);
-	if (ret)
-		return ret;
-
-	while (mcnt--) {
-		u8 remaining = msg->len;
-		u8 *ptr = msg->buf;
-
-		while (remaining) {
-			u8 cnt = (remaining > 16) ? 16 : remaining;
-			u8 cmd;
-
-			if (msg->flags & I2C_M_RD)
-				cmd = 1;
-			else
-				cmd = 0;
-
-			if (mcnt || remaining > 16)
-				cmd |= 4; /* MOT */
-
-			ret = port->func->aux(port, true, cmd, msg->addr, ptr, cnt);
-			if (ret < 0) {
-				i2c->release(port);
-				return ret;
-			}
-
-			ptr += cnt;
-			remaining -= cnt;
-		}
-
-		msg++;
-	}
-
-	i2c->release(port);
-	return num;
-}
-
-static u32
-aux_func(struct i2c_adapter *adap)
-{
-	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
-}
-
-const struct i2c_algorithm nvkm_i2c_aux_algo = {
-	.master_xfer = aux_xfer,
-	.functionality = aux_func
-};