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authorRobert Schlabbach <robert_s@gmx.net>2022-01-06 23:49:47 +0100
committerMauro Carvalho Chehab <mchehab@kernel.org>2022-01-10 15:56:00 +0100
commit95c4cd1d19e3e1d4894457a6f015e3a045bc9b06 (patch)
treeb77395d00e487027ea1302d062980c4faa92fc43 /drivers/media/tuners
parenta89eeb9937a0124e609e9355cd48cdfe35c8b8b7 (diff)
media: si2157: fix 6MHz & 6.1MHz bandwidth setting
Commit 98c65a3dac95 ("media: si2157: add support for 1.7MHz and 6.1 MHz") introduced two bugs: The 6.1MHz setting was always used for any bandwidth less than 7MHz due to missing "else" keywords, and then the setting was not specified as decimal 10, but as hexadecimal 0x10, which makes the tuner refuse the tune command. In sum, it is not possible to tune to any channels of less than 7MHz bandwidth anymore. Add the missing "else" keywords and convert all bandwidth settings to decimal to avoid any future decimal vs. hexadecimal confusion. Remove the use of the undefined bandwidth setting 0x0f for bandwidths greater than 8MHz, which is also refused by the tune command, in favour of using the default bandwidth setting 8 for any bandwidths greater than 7MHz. Link: https://lore.kernel.org/linux-media/trinity-d0015ea1-1da5-4c7d-a75b-781fb26dc339-1641509387112@3c-app-gmx-bap68 Fixes: 98c65a3dac95 ("media: si2157: add support for 1.7MHz and 6.1 MHz") Reported-by: Robert Schlabbach <robert_s@gmx.net> Signed-off-by: Robert Schlabbach <robert_s@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/tuners')
-rw-r--r--drivers/media/tuners/si2157.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index 481c5c3b577d..76dc10dd2518 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -459,17 +459,15 @@ static int si2157_set_params(struct dvb_frontend *fe)
}
if (SUPPORTS_1700KHz(dev) && c->bandwidth_hz <= 1700000)
- bandwidth = 0x09;
- if (c->bandwidth_hz <= 6000000)
- bandwidth = 0x06;
- if (SUPPORTS_1700KHz(dev) && c->bandwidth_hz <= 6100000)
- bandwidth = 0x10;
+ bandwidth = 9;
+ else if (c->bandwidth_hz <= 6000000)
+ bandwidth = 6;
+ else if (SUPPORTS_1700KHz(dev) && c->bandwidth_hz <= 6100000)
+ bandwidth = 10;
else if (c->bandwidth_hz <= 7000000)
- bandwidth = 0x07;
- else if (c->bandwidth_hz <= 8000000)
- bandwidth = 0x08;
+ bandwidth = 7;
else
- bandwidth = 0x0f;
+ bandwidth = 8;
switch (c->delivery_system) {
case SYS_ATSC: