diff options
| author | Douglas Fischer <fischerdouglasc@gmail.com> | 2018-03-02 16:25:43 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-03-21 17:00:02 +0100 |
| commit | dd328275e98634931419fdc652e99ebaf71bdc71 (patch) | |
| tree | d552d6e8ec3b5a53344f55357f21a4c2d8630964 /drivers/media/radio/si470x | |
| parent | media: radio: Critical v4l2 registration bugfix for si470x over i2c (diff) | |
| download | linux-dd328275e98634931419fdc652e99ebaf71bdc71.tar.xz linux-dd328275e98634931419fdc652e99ebaf71bdc71.zip | |
media: radio: Critical interrupt bugfix for si470x over i2c
Fixed si470x_start() disabling the interrupt signal, causing tune
operations to never complete. This does not affect USB radios
because they poll the registers instead of using the IRQ line.
Signed-off-by: Douglas Fischer <fischerdouglasc@gmail.com>
[hans.verkuil@cisco.com: fixed 80 column checkpatch warning]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/radio/si470x')
| -rw-r--r-- | drivers/media/radio/si470x/radio-si470x-common.c | 8 | ||||
| -rw-r--r-- | drivers/media/radio/si470x/radio-si470x.h | 2 |
2 files changed, 8 insertions, 2 deletions
diff --git a/drivers/media/radio/si470x/radio-si470x-common.c b/drivers/media/radio/si470x/radio-si470x-common.c index 6f0bf438be59..b94d66e53d4e 100644 --- a/drivers/media/radio/si470x/radio-si470x-common.c +++ b/drivers/media/radio/si470x/radio-si470x-common.c @@ -386,8 +386,12 @@ int si470x_start(struct si470x_device *radio) goto done; /* sysconfig 1 */ - radio->registers[SYSCONFIG1] = - (de << 11) & SYSCONFIG1_DE; /* DE*/ + radio->registers[SYSCONFIG1] |= SYSCONFIG1_RDSIEN | SYSCONFIG1_STCIEN | + SYSCONFIG1_RDS; + radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_GPIO2; + radio->registers[SYSCONFIG1] |= SYSCONFIG1_GPIO2_INT; + if (de) + radio->registers[SYSCONFIG1] |= SYSCONFIG1_DE; retval = si470x_set_register(radio, SYSCONFIG1); if (retval < 0) goto done; diff --git a/drivers/media/radio/si470x/radio-si470x.h b/drivers/media/radio/si470x/radio-si470x.h index eb7b834a0ae5..0202f8eb90c4 100644 --- a/drivers/media/radio/si470x/radio-si470x.h +++ b/drivers/media/radio/si470x/radio-si470x.h @@ -79,6 +79,8 @@ #define SYSCONFIG1_BLNDADJ 0x00c0 /* bits 07..06: Stereo/Mono Blend Level Adjustment */ #define SYSCONFIG1_GPIO3 0x0030 /* bits 05..04: General Purpose I/O 3 */ #define SYSCONFIG1_GPIO2 0x000c /* bits 03..02: General Purpose I/O 2 */ +#define SYSCONFIG1_GPIO2_DIS 0x0000 /* Disable GPIO 2 interrupt */ +#define SYSCONFIG1_GPIO2_INT 0x0004 /* Enable STC/RDS interrupt */ #define SYSCONFIG1_GPIO1 0x0003 /* bits 01..00: General Purpose I/O 1 */ #define SYSCONFIG2 5 /* System Configuration 2 */ |