[PATCH 1/3] si2157: Add support for Si2147-A30

[Olli Salonen <olli.salonen@xxxxxx>]

This patch adds support for Si2147-A30 tuner. Fairly trivial, no firmware
needed for this tuner. However, command 14 00 02 07 01 00 seems to be
mandatory. On Si2157 and Si2158 the value 0x0100 is the default value, so this
patch does not impact the existing tuners/devices. On Si2147 the default is
0x0000 and I can't get a lock with that value.

Signed-off-by: Olli Salonen <olli.salonen@xxxxxx>
Cc: crope@xxxxxx
---
 drivers/media/tuners/si2157.c      | 13 +++++++++++--
 drivers/media/tuners/si2157.h      |  2 +-
 drivers/media/tuners/si2157_priv.h |  2 +-
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index efb5cce..41965c7 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -1,5 +1,5 @@
 /*
- * Silicon Labs Si2157/2158 silicon tuner driver
+ * Silicon Labs Si2147/2157/2158 silicon tuner driver
  *
  * Copyright (C) 2014 Antti Palosaari <crope@xxxxxx>
  *
@@ -110,12 +110,14 @@ static int si2157_init(struct dvb_frontend *fe)
 
 	#define SI2158_A20 ('A' << 24 | 58 << 16 | '2' << 8 | '0' << 0)
 	#define SI2157_A30 ('A' << 24 | 57 << 16 | '3' << 8 | '0' << 0)
+	#define SI2147_A30 ('A' << 24 | 47 << 16 | '3' << 8 | '0' << 0)
 
 	switch (chip_id) {
 	case SI2158_A20:
 		fw_file = SI2158_A20_FIRMWARE;
 		break;
 	case SI2157_A30:
+	case SI2147_A30:
 		goto skip_fw_download;
 		break;
 	default:
@@ -258,7 +260,14 @@ static int si2157_set_params(struct dvb_frontend *fe)
 	if (s->inversion)
 		cmd.args[5] = 0x01;
 	cmd.wlen = 6;
-	cmd.rlen = 1;
+	cmd.rlen = 4;
+	ret = si2157_cmd_execute(s, &cmd);
+	if (ret)
+		goto err;
+
+	memcpy(cmd.args, "\x14\x00\x02\x07\x01\x00", 6);
+	cmd.wlen = 6;
+	cmd.rlen = 4;
 	ret = si2157_cmd_execute(s, &cmd);
 	if (ret)
 		goto err;
diff --git a/drivers/media/tuners/si2157.h b/drivers/media/tuners/si2157.h
index 6da4d5d..d3b19ca 100644
--- a/drivers/media/tuners/si2157.h
+++ b/drivers/media/tuners/si2157.h
@@ -1,5 +1,5 @@
 /*
- * Silicon Labs Si2157/2158 silicon tuner driver
+ * Silicon Labs Si2147/2157/2158 silicon tuner driver
  *
  * Copyright (C) 2014 Antti Palosaari <crope@xxxxxx>
  *
diff --git a/drivers/media/tuners/si2157_priv.h b/drivers/media/tuners/si2157_priv.h
index 3ddab5e..02350f8 100644
--- a/drivers/media/tuners/si2157_priv.h
+++ b/drivers/media/tuners/si2157_priv.h
@@ -1,5 +1,5 @@
 /*
- * Silicon Labs Si2157/2158 silicon tuner driver
+ * Silicon Labs Si2147/2157/2158 silicon tuner driver
  *
  * Copyright (C) 2014 Antti Palosaari <crope@xxxxxx>
  *
-- 
1.9.1

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