media: si2157: add ATV support for si2158

This device also supports ATV, as it has the same API for
setting analog TV tuning parameters.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/tuners/si2157.c

@@ -576,7 +576,7 @@ static int si2157_set_analog_params(struct dvb_frontend *fe,
 	u8 color = 0;    /* 0=NTSC/PAL, 0x10=SECAM */
 	u8 invert_analog = 1; /* analog tuner spectrum; 0=normal, 1=inverted */
 
-	if (dev->part_id != SI2157) {
+	if (!SUPPORTS_ATV_IF(dev)) {
 		dev_info(&client->dev, "Analog tuning not supported yet for Si21%d\n",
 			 dev->part_id);
 		ret = -EINVAL;

drivers/media/tuners/si2157_priv.h

@@ -71,6 +71,9 @@ struct si2157_cmd {
 			       ((dev)->part_id == SI2157) || \
 			       ((dev)->part_id == SI2177))
 
+#define SUPPORTS_ATV_IF(dev) (((dev)->part_id == SI2157) || \
+			      ((dev)->part_id == SI2158))
+
 /* Old firmware namespace */
 #define SI2158_A20_FIRMWARE "dvb-tuner-si2158-a20-01.fw"
 #define SI2141_A10_FIRMWARE "dvb-tuner-si2141-a10-01.fw"