Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "The main set of series of patches for media subsystem, including:
   - document RC sysfs class
   - added an API to setup scancode to allow waking up systems using the
     Remote Controller
   - add API for SDR devices.  Drivers are still on staging
   - some API improvements for getting EDID data from media
     inputs/outputs
   - new DVB frontend driver for drx-j (ATSC)
   - one driver (it913x/it9137) got removed, in favor of an improvement
     on another driver (af9035)
   - added a skeleton V4L2 PCI driver at documentation
   - added a dual flash driver (lm3646)
   - added a new IR driver (img-ir)
   - added an IR scancode decoder for the Sharp protocol
   - some improvements at the usbtv driver, to allow its core to be
     reused.
   - added a new SDR driver (rtl2832u_sdr)
   - added a new tuner driver (msi001)
   - several improvements at em28xx driver to fix PM support, device
     removal and to split the V4L2 specific bits into a separate
     sub-driver
   - one driver got converted to videobuf2 (s2255drv)
   - the e4000 tuner driver now follows an improved binding model
   - some fixes at V4L2 compat32 code
   - several fixes and enhancements at videobuf2 code
   - some cleanups at V4L2 API documentation
   - usual driver enhancements, new board additions and misc fixups"

[ NOTE! This merge effective drops commit 4329b93b283c ("of: Reduce
  indentation in of_graph_get_next_endpoint").

  The of_graph_get_next_endpoint() function was moved and renamed by
  commit fd9fdb78a9bf ("[media] of: move graph helpers from
  drivers/media/v4l2-core to drivers/of").  It was originally called
  v4l2_of_get_next_endpoint() and lived in the file
  drivers/media/v4l2-core/v4l2-of.c.

  In that original location, it was then fixed to support empty port
  nodes by commit b9db140c1e46 ("[media] v4l: of: Support empty port
  nodes"), and that commit clashes badly with the dropped "Reduce
  intendation" commit.  I had to choose one or the other, and decided
  that the "Support empty port nodes" commit was more important ]

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (426 commits)
  [media] em28xx-dvb: fix PCTV 461e tuner I2C binding
  Revert "[media] em28xx-dvb: fix PCTV 461e tuner I2C binding"
  [media] em28xx: fix PCTV 290e LNA oops
  [media] em28xx-dvb: fix PCTV 461e tuner I2C binding
  [media] m88ds3103: fix bug on .set_tone()
  [media] saa7134: fix WARN_ON during resume
  [media] v4l2-dv-timings: add module name, description, license
  [media] videodev2.h: add parenthesis around macro arguments
  [media] saa6752hs: depends on CRC32
  [media] si4713: fix Kconfig dependencies
  [media] Sensoray 2255 uses videobuf2
  [media] adv7180: free an interrupt on failure paths in init_device()
  [media] e4000: make VIDEO_V4L2 dependency optional
  [media] af9033: Don't export functions for the hardware filter
  [media] af9035: use af9033 PID filters
  [media] af9033: implement PID filter
  [media] rtl2832_sdr: do not use dynamic stack allocation
  [media] e4000: fix 32-bit build error
  [media] em28xx-audio: make sure audio is unmuted on open()
  [media] DocBook media: v4l2_format_sdr was renamed to v4l2_sdr_format
  ...

1 files changed, 99 insertions, 0 deletions

diff --git a/drivers/media/rc/img-ir/img-ir-sharp.c b/drivers/media/rc/img-ir/img-ir-sharp.c
new file mode 100644
index 000000000000..3397cc5a6794
--- /dev/null
+++ b/drivers/media/rc/img-ir/img-ir-sharp.c
@@ -0,0 +1,99 @@
+/*
+ * ImgTec IR Decoder setup for Sharp protocol.
+ *
+ * Copyright 2012-2014 Imagination Technologies Ltd.
+ */
+
+#include "img-ir-hw.h"
+
+/* Convert Sharp data to a scancode */
+static int img_ir_sharp_scancode(int len, u64 raw, int *scancode, u64 protocols)
+{
+	unsigned int addr, cmd, exp, chk;
+
+	if (len != 15)
+		return -EINVAL;
+
+	addr = (raw >>   0) & 0x1f;
+	cmd  = (raw >>   5) & 0xff;
+	exp  = (raw >>  13) &  0x1;
+	chk  = (raw >>  14) &  0x1;
+
+	/* validate data */
+	if (!exp)
+		return -EINVAL;
+	if (chk)
+		/* probably the second half of the message */
+		return -EINVAL;
+
+	*scancode = addr << 8 | cmd;
+	return IMG_IR_SCANCODE;
+}
+
+/* Convert Sharp scancode to Sharp data filter */
+static int img_ir_sharp_filter(const struct rc_scancode_filter *in,
+			       struct img_ir_filter *out, u64 protocols)
+{
+	unsigned int addr, cmd, exp = 0, chk = 0;
+	unsigned int addr_m, cmd_m, exp_m = 0, chk_m = 0;
+
+	addr   = (in->data >> 8) & 0x1f;
+	addr_m = (in->mask >> 8) & 0x1f;
+	cmd    = (in->data >> 0) & 0xff;
+	cmd_m  = (in->mask >> 0) & 0xff;
+	if (cmd_m) {
+		/* if filtering commands, we can only match the first part */
+		exp   = 1;
+		exp_m = 1;
+		chk   = 0;
+		chk_m = 1;
+	}
+
+	out->data = addr        |
+		    cmd   <<  5 |
+		    exp   << 13 |
+		    chk   << 14;
+	out->mask = addr_m      |
+		    cmd_m <<  5 |
+		    exp_m << 13 |
+		    chk_m << 14;
+
+	return 0;
+}
+
+/*
+ * Sharp decoder
+ * See also http://www.sbprojects.com/knowledge/ir/sharp.php
+ */
+struct img_ir_decoder img_ir_sharp = {
+	.type = RC_BIT_SHARP,
+	.control = {
+		.decoden = 0,
+		.decodend2 = 1,
+		.code_type = IMG_IR_CODETYPE_PULSEDIST,
+		.d1validsel = 1,
+	},
+	/* main timings */
+	.tolerance = 20,	/* 20% */
+	.timings = {
+		/* 0 symbol */
+		.s10 = {
+			.pulse = { 320	/* 320 us */ },
+			.space = { 680	/* 1 ms period */ },
+		},
+		/* 1 symbol */
+		.s11 = {
+			.pulse = { 320	/* 320 us */ },
+			.space = { 1680	/* 2 ms period */ },
+		},
+		/* free time */
+		.ft = {
+			.minlen = 15,
+			.maxlen = 15,
+			.ft_min = 5000,	/* 5 ms */
+		},
+	},
+	/* scancode logic */
+	.scancode = img_ir_sharp_scancode,
+	.filter = img_ir_sharp_filter,
+};