Merge tag 'staging-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO updates from Greg KH:
 "Here is the big staging tree update for 4.12-rc1.

  It's a big one, adding about 350k new lines of crap^Wcode, mostly all
  in a big dump of media drivers from Intel. But there's other new
  drivers in here as well, yet-another-wifi driver, new IIO drivers, and
  a new crypto accelerator.

  We also deleted a bunch of stuff, mostly in patch cleanups, but also
  the Android ION code has shrunk a lot, and the Android low memory
  killer driver was finally deleted, much to the celebration of the -mm
  developers.

  All of these have been in linux-next with a few build issues that will
  show up when you merge to your tree"

Merge conflicts in the new rtl8723bs driver (due to the wifi changes
this merge window) handled as per linux-next, courtesy of Stephen
Rothwell.

* tag 'staging-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1182 commits)
  staging: fsl-mc/dpio: add cpu <--> LE conversion for dpaa2_fd
  staging: ks7010: remove line continuations in quoted strings
  staging: vt6656: use tabs instead of spaces
  staging: android: ion: Fix unnecessary initialization of static variable
  staging: media: atomisp: fix range checking on clk_num
  staging: media: atomisp: fix misspelled word in comment
  staging: media: atomisp: kmap() can't fail
  staging: atomisp: remove #ifdef for runtime PM functions
  staging: atomisp: satm include directory is gone
  atomisp: remove some more unused files
  atomisp: remove hmm_load/store/clear indirections
  atomisp: kill off mmgr_free
  atomisp: clean up the hmm init/cleanup indirections
  atomisp: handle allocation calls before init in the hmm layer
  staging: fsl-dpaa2/eth: Add maintainer for Ethernet driver
  staging: fsl-dpaa2/eth: Add TODO file
  staging: fsl-dpaa2/eth: Add trace points
  staging: fsl-dpaa2/eth: Add driver specific stats
  staging: fsl-dpaa2/eth: Add ethtool support
  staging: fsl-dpaa2/eth: Add Freescale DPAA2 Ethernet driver
  ...

1 files changed, 89 insertions, 0 deletions

diff --git a/drivers/staging/media/atomisp/i2c/imx/otp_e2prom.c b/drivers/staging/media/atomisp/i2c/imx/otp_e2prom.c
new file mode 100644
index 0000000..73d041f
--- /dev/null
+++ b/drivers/staging/media/atomisp/i2c/imx/otp_e2prom.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2013 Intel Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ *
+ */
+#include <linux/bitops.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <media/v4l2-device.h>
+#include "common.h"
+
+/*
+ * Read EEPROM data from the gerneral e2prom chip(eg.
+ * CAT24C08, CAT24C128, le24l042cs, and store
+ * it into a kmalloced buffer. On error return NULL.
+ * @size: set to the size of the returned EEPROM data.
+ */
+void *e2prom_otp_read(struct v4l2_subdev *sd, u8 dev_addr,
+	u32 start_addr, u32 size)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	unsigned int e2prom_i2c_addr = dev_addr >> 1;
+	static const unsigned int max_read_size = 30;
+	int addr;
+	u32 s_addr = start_addr & E2PROM_ADDR_MASK;
+	bool two_addr = (start_addr & E2PROM_2ADDR) >> 31;
+	char *buffer;
+
+	buffer = devm_kzalloc(&client->dev, size, GFP_KERNEL);
+	if (!buffer)
+		return NULL;
+
+	for (addr = s_addr; addr < size; addr += max_read_size) {
+		struct i2c_msg msg[2];
+		unsigned int i2c_addr = e2prom_i2c_addr;
+		u16 addr_buf;
+		int r;
+
+		msg[0].flags = 0;
+		if (two_addr) {
+			msg[0].addr = i2c_addr;
+			addr_buf = cpu_to_be16(addr & 0xFFFF);
+			msg[0].len = 2;
+			msg[0].buf = (u8 *)&addr_buf;
+		} else {
+			i2c_addr |= (addr >> 8) & 0x7;
+			msg[0].addr = i2c_addr;
+			addr_buf = addr & 0xFF;
+			msg[0].len = 1;
+			msg[0].buf = (u8 *)&addr_buf;
+		}
+
+		msg[1].addr = i2c_addr;
+		msg[1].flags = I2C_M_RD;
+		msg[1].len = min(max_read_size, size - addr);
+		msg[1].buf = &buffer[addr];
+
+		r = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
+		if (r != ARRAY_SIZE(msg)) {
+			dev_err(&client->dev, "read failed at 0x%03x\n", addr);
+			return NULL;
+		}
+	}
+	return buffer;
+}
+
+