Merge tag 'media/v4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 - added support for Intersil/Techwell TW686x-based video capture cards
 - v4l PCI skeleton driver moved to samples directory
 - Documentation cleanups and improvements
 - RC: reduced the memory footprint for IR raw events
 - tpg: Export the tpg code from vivid as a module
 - adv7180: Add device tree binding documentation
 - lots of driver improvements and fixes

* tag 'media/v4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (173 commits)
  [media] exynos-gsc: avoid build warning without CONFIG_OF
  [media] samples: v4l: from Documentation to samples directory
  [media] dib0700: add USB ID for another STK8096-PVR ref design based card
  [media] tvp5150: propagate I2C write error in .s_register callback
  [media] tvp5150: return I2C write operation failure to callers
  [media] em28xx: add support for Hauppauge WinTV-dualHD DVB tuner
  [media] em28xx: add missing USB IDs
  [media] update cx23885 and em28xx cardlists
  [media] media: au0828 fix au0828_v4l2_device_register() to not unlock and free
  [media] c8sectpfe: Rework firmware loading mechanism
  [media] c8sectpfe: Demote print to dev_dbg
  [media] c8sectpfe: Fix broken circular buffer wp management
  [media] media-device: Simplify compat32 logic
  [media] media: i2c: ths7303: remove redundant assignment on bt
  [media] dvb-usb: hide unused functions
  [media] xilinx-vipp: remove unnecessary of_node_put
  [media] drivers/media/media-devnode: clear private_data before put_device()
  [media] drivers/media/media-device: move debug log before _devnode_unregister()
  [media] drivers/media/rc: postpone kfree(rc_dev)
  [media] media/dvb-core: forward media_create_pad_links() return value
  ...

1 files changed, 27 insertions, 11 deletions

diff --git a/drivers/media/tuners/qm1d1c0042.c b/drivers/media/tuners/qm1d1c0042.c
index 18bc745ed108..9af2a155cfca 100644
--- a/drivers/media/tuners/qm1d1c0042.c
+++ b/drivers/media/tuners/qm1d1c0042.c
@@ -32,14 +32,24 @@
 #include "qm1d1c0042.h"
 
 #define QM1D1C0042_NUM_REGS 0x20
-
-static const u8 reg_initval[QM1D1C0042_NUM_REGS] = {
-	0x48, 0x1c, 0xa0, 0x10, 0xbc, 0xc5, 0x20, 0x33,
-	0x06, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
-	0x00, 0xff, 0xf3, 0x00, 0x2a, 0x64, 0xa6, 0x86,
-	0x8c, 0xcf, 0xb8, 0xf1, 0xa8, 0xf2, 0x89, 0x00
+#define QM1D1C0042_NUM_REG_ROWS 2
+
+static const u8
+reg_initval[QM1D1C0042_NUM_REG_ROWS][QM1D1C0042_NUM_REGS] = { {
+		0x48, 0x1c, 0xa0, 0x10, 0xbc, 0xc5, 0x20, 0x33,
+		0x06, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
+		0x00, 0xff, 0xf3, 0x00, 0x2a, 0x64, 0xa6, 0x86,
+		0x8c, 0xcf, 0xb8, 0xf1, 0xa8, 0xf2, 0x89, 0x00
+	}, {
+		0x68, 0x1c, 0xc0, 0x10, 0xbc, 0xc1, 0x11, 0x33,
+		0x03, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
+		0x00, 0xff, 0xf3, 0x00, 0x3f, 0x25, 0x5c, 0xd6,
+		0x55, 0xcf, 0x95, 0xf6, 0x36, 0xf2, 0x09, 0x00
+	}
 };
 
+static int reg_index;
+
 static const struct qm1d1c0042_config default_cfg = {
 	.xtal_freq = 16000,
 	.lpf = 1,
@@ -320,7 +330,6 @@ static int qm1d1c0042_init(struct dvb_frontend *fe)
 	int i, ret;
 
 	state = fe->tuner_priv;
-	memcpy(state->regs, reg_initval, sizeof(reg_initval));
 
 	reg_write(state, 0x01, 0x0c);
 	reg_write(state, 0x01, 0x0c);
@@ -330,15 +339,22 @@ static int qm1d1c0042_init(struct dvb_frontend *fe)
 		goto failed;
 	usleep_range(2000, 3000);
 
-	val = state->regs[0x01] | 0x10;
-	ret = reg_write(state, 0x01, val); /* soft reset off */
+	ret = reg_write(state, 0x01, 0x1c); /* soft reset off */
 	if (ret < 0)
 		goto failed;
 
-	/* check ID */
+	/* check ID and choose initial registers corresponding ID */
 	ret = reg_read(state, 0x00, &val);
-	if (ret < 0 || val != 0x48)
+	if (ret < 0)
+		goto failed;
+	for (reg_index = 0; reg_index < QM1D1C0042_NUM_REG_ROWS;
+	     reg_index++) {
+		if (val == reg_initval[reg_index][0x00])
+			break;
+	}
+	if (reg_index >= QM1D1C0042_NUM_REG_ROWS)
 		goto failed;
+	memcpy(state->regs, reg_initval[reg_index], QM1D1C0042_NUM_REGS);
 	usleep_range(2000, 3000);
 
 	state->regs[0x0c] |= 0x40;