diff options
| author |   Dmitri Belimov <d.belimov@gmail.com> | 2010-05-18 04:23:29 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-06-01 01:21:57 -0300 |
| commit | 2a15ac7ad625dc22885446016d730a451df1b7d4 (patch) | |
| tree | 998db1de83ad0ea93073562deac1896ad0e43065 /drivers/staging | |
| parent | V4L/DVB: tm6000: Remove an extra ; symbol (diff) | |
| download | linux-dev-2a15ac7ad625dc22885446016d730a451df1b7d4.tar.xz linux-dev-2a15ac7ad625dc22885446016d730a451df1b7d4.zip | |
V4L/DVB: tm6000, reset I2C bus function
Add new function for reset I2C bus. Rework some code for use this function.
Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/tm6000/tm6000-cards.c | 17 | ||||
| -rw-r--r-- | drivers/staging/tm6000/tm6000-core.c | 16 | ||||
| -rw-r--r-- | drivers/staging/tm6000/tm6000.h | 2 |
3 files changed, 20 insertions, 15 deletions
diff --git a/drivers/staging/tm6000/tm6000-cards.c b/drivers/staging/tm6000/tm6000-cards.c index 33b134b521be..22fbd75a551d 100644 --- a/drivers/staging/tm6000/tm6000-cards.c +++ b/drivers/staging/tm6000/tm6000-cards.c @@ -363,13 +363,7 @@ int tm6000_tuner_callback(void *ptr, int component, int command, int arg) tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 0x02, arg); msleep(10); - rc = tm6000_set_reg(dev, REQ_03_SET_GET_MCU_PIN, - TM6000_GPIO_CLK, 0); - if (rc < 0) - return rc; - msleep(10); - rc = tm6000_set_reg(dev, REQ_03_SET_GET_MCU_PIN, - TM6000_GPIO_CLK, 1); + rc = tm6000_i2c_reset(dev, 10); break; case XC2028_TUNER_RESET: /* Reset codes during load firmware */ @@ -423,14 +417,7 @@ int tm6000_tuner_callback(void *ptr, int component, int command, int arg) break; case 2: - rc = tm6000_set_reg(dev, REQ_03_SET_GET_MCU_PIN, - TM6000_GPIO_CLK, 0); - if (rc < 0) - return rc; - msleep(100); - rc = tm6000_set_reg(dev, REQ_03_SET_GET_MCU_PIN, - TM6000_GPIO_CLK, 1); - msleep(100); + rc = tm6000_i2c_reset(dev, 100); break; } } diff --git a/drivers/staging/tm6000/tm6000-core.c b/drivers/staging/tm6000/tm6000-core.c index 1259ae550547..65feb8cb421c 100644 --- a/drivers/staging/tm6000/tm6000-core.c +++ b/drivers/staging/tm6000/tm6000-core.c @@ -153,6 +153,22 @@ int tm6000_get_reg32 (struct tm6000_core *dev, u8 req, u16 value, u16 index) return buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24; } +int tm6000_i2c_reset(struct tm6000_core *dev, u16 tsleep) +{ + int rc; + + rc = tm6000_set_reg(dev, REQ_03_SET_GET_MCU_PIN, TM6000_GPIO_CLK, 0); + if (rc < 0) + return rc; + + msleep(tsleep); + + rc = tm6000_set_reg(dev, REQ_03_SET_GET_MCU_PIN, TM6000_GPIO_CLK, 1); + msleep(tsleep); + + return rc; +} + void tm6000_set_fourcc_format(struct tm6000_core *dev) { if (dev->dev_type == TM6010) { diff --git a/drivers/staging/tm6000/tm6000.h b/drivers/staging/tm6000/tm6000.h index 79ef72a3f431..7bbaf26dea14 100644 --- a/drivers/staging/tm6000/tm6000.h +++ b/drivers/staging/tm6000/tm6000.h @@ -246,6 +246,8 @@ int tm6000_get_reg (struct tm6000_core *dev, u8 req, u16 value, u16 index); int tm6000_get_reg16(struct tm6000_core *dev, u8 req, u16 value, u16 index); int tm6000_get_reg32(struct tm6000_core *dev, u8 req, u16 value, u16 index); int tm6000_set_reg (struct tm6000_core *dev, u8 req, u16 value, u16 index); +int tm6000_i2c_reset(struct tm6000_core *dev, u16 tsleep); + int tm6000_init (struct tm6000_core *dev); int tm6000_init_analog_mode (struct tm6000_core *dev); |