Merge tag 'media/v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - Lots of improvements at the DVB API DocBook documentation.  Now, the
   frontend and the network APIs are fully in sync with the Kernel and
   looks more like the rest of the media documentation;

 - New frontend driver: cx24120

 - New driver for a PCI device: cobalt.  This driver is actually not
   sold in the market, but it is a good example of a multi-HDMI input
   device;

 - The dt3155 driver were promoted from staging;

 - The mantis driver got remote controller support;

 - New V4L2 driver for ST bdisp SoC chipsets;

 - Make sparse and smatch happier: several bugs were solved by fixing
   the issues reported by those static code analyzers.

 - Lots of new device additions, new features, improvements and cleanups
   at the existing drivers.

* tag 'media/v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (553 commits)
  [media] lmedm04: fix the range for relative measurements
  [media] lmedm04: use u32 instead of u64 for relative stats
  [media] omap3isp: remove unused var
  [media] saa7134: fix page size on some archs
  [media] use CONFIG_PM_SLEEP for suspend/resume
  [media] tuner-i2c: be consistent with I2C declaration
  [media] si470x: cleanup define namespace
  [media] bdisp: prevent compiling on random arch
  [media] vb2: Don't WARN when v4l2_buffer.bytesused is 0 for multiplanar buffers
  [media] MAINTAINERS: Add entry for the Renesas VSP1 driver
  [media] videodev2.h: fix copy-and-paste error in V4L2_MAP_XFER_FUNC_DEFAULT
  [media] Revert "[media] vb2: Push mmap_sem down to memops"
  [media] mantis: cleanup a warning
  [media] bdisp-debug: don't try to divide by s64
  [media] cx88: don't declare restart_video_queue if not used
  [media] au0828: move dev->boards atribuition to happen earlier
  [media] lmedm04: implement dvb v5 statistics
  [media] bdisp: remove unused var
  [media] bdisp: remove needless check
  ts2020: fix compilation on i386
  ...

1 files changed, 42 insertions, 2 deletions

diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index d74ae26621ca..a6245ef379c4 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -79,6 +79,7 @@ static int si2157_init(struct dvb_frontend *fe)
 {
 	struct i2c_client *client = fe->tuner_priv;
 	struct si2157_dev *dev = i2c_get_clientdata(client);
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 	int ret, len, remaining;
 	struct si2157_cmd cmd;
 	const struct firmware *fw;
@@ -201,9 +202,14 @@ skip_fw_download:
 	dev->fw_loaded = true;
 
 warm:
+	/* init statistics in order signal app which are supported */
+	c->strength.len = 1;
+	c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+	/* start statistics polling */
+	schedule_delayed_work(&dev->stat_work, msecs_to_jiffies(1000));
+
 	dev->active = true;
 	return 0;
-
 err_release_firmware:
 	release_firmware(fw);
 err:
@@ -222,6 +228,9 @@ static int si2157_sleep(struct dvb_frontend *fe)
 
 	dev->active = false;
 
+	/* stop statistics polling */
+	cancel_delayed_work_sync(&dev->stat_work);
+
 	/* standby */
 	memcpy(cmd.args, "\x16\x00", 2);
 	cmd.wlen = 2;
@@ -298,7 +307,8 @@ static int si2157_set_params(struct dvb_frontend *fe)
 	if (dev->chiptype == SI2157_CHIPTYPE_SI2146)
 		memcpy(cmd.args, "\x14\x00\x02\x07\x00\x01", 6);
 	else
-		memcpy(cmd.args, "\x14\x00\x02\x07\x01\x00", 6);
+		memcpy(cmd.args, "\x14\x00\x02\x07\x00\x00", 6);
+	cmd.args[4] = dev->if_port;
 	cmd.wlen = 6;
 	cmd.rlen = 4;
 	ret = si2157_cmd_execute(client, &cmd);
@@ -359,6 +369,34 @@ static const struct dvb_tuner_ops si2157_ops = {
 	.get_if_frequency = si2157_get_if_frequency,
 };
 
+static void si2157_stat_work(struct work_struct *work)
+{
+	struct si2157_dev *dev = container_of(work, struct si2157_dev, stat_work.work);
+	struct dvb_frontend *fe = dev->fe;
+	struct i2c_client *client = fe->tuner_priv;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct si2157_cmd cmd;
+	int ret;
+
+	dev_dbg(&client->dev, "\n");
+
+	memcpy(cmd.args, "\x42\x00", 2);
+	cmd.wlen = 2;
+	cmd.rlen = 12;
+	ret = si2157_cmd_execute(client, &cmd);
+	if (ret)
+		goto err;
+
+	c->strength.stat[0].scale = FE_SCALE_DECIBEL;
+	c->strength.stat[0].svalue = (s8) cmd.args[3] * 1000;
+
+	schedule_delayed_work(&dev->stat_work, msecs_to_jiffies(2000));
+	return;
+err:
+	c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+	dev_dbg(&client->dev, "failed=%d\n", ret);
+}
+
 static int si2157_probe(struct i2c_client *client,
 		const struct i2c_device_id *id)
 {
@@ -378,10 +416,12 @@ static int si2157_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, dev);
 	dev->fe = cfg->fe;
 	dev->inversion = cfg->inversion;
+	dev->if_port = cfg->if_port;
 	dev->fw_loaded = false;
 	dev->chiptype = (u8)id->driver_data;
 	dev->if_frequency = 5000000; /* default value of property 0x0706 */
 	mutex_init(&dev->i2c_mutex);
+	INIT_DELAYED_WORK(&dev->stat_work, si2157_stat_work);
 
 	/* check if the tuner is there */
 	cmd.wlen = 0;