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authorDmitri Belimov <d.belimov@gmail.com>2010-05-18 04:23:29 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-06-01 01:21:57 -0300
commit2a15ac7ad625dc22885446016d730a451df1b7d4 (patch)
tree998db1de83ad0ea93073562deac1896ad0e43065
parentb9eb39d8f419d76e1d59febe48a6791f1fbb68c4 (diff)
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>
-rw-r--r--drivers/staging/tm6000/tm6000-cards.c17
-rw-r--r--drivers/staging/tm6000/tm6000-core.c16
-rw-r--r--drivers/staging/tm6000/tm6000.h2
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);