diff options
| -rw-r--r-- | drivers/media/i2c/rdacm21.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/media/i2c/rdacm21.c b/drivers/media/i2c/rdacm21.c index 336fd5d482b7..6ab8a894e94b 100644 --- a/drivers/media/i2c/rdacm21.c +++ b/drivers/media/i2c/rdacm21.c @@ -333,13 +333,19 @@ static int ov10640_initialize(struct rdacm21_device *dev) { u8 val; - /* Power-up OV10640 by setting RESETB and PWDNB pins high. */ + /* Enable GPIO0#0 (reset) and GPIO1#0 (pwdn) as output lines. */ ov490_write_reg(dev, OV490_GPIO_SEL0, OV490_GPIO0); ov490_write_reg(dev, OV490_GPIO_SEL1, OV490_SPWDN0); ov490_write_reg(dev, OV490_GPIO_DIRECTION0, OV490_GPIO0); ov490_write_reg(dev, OV490_GPIO_DIRECTION1, OV490_SPWDN0); + + /* Power up OV10640 and then reset it. */ + ov490_write_reg(dev, OV490_GPIO_OUTPUT_VALUE1, OV490_SPWDN0); + usleep_range(1500, 3000); + + ov490_write_reg(dev, OV490_GPIO_OUTPUT_VALUE0, 0x00); + usleep_range(1500, 3000); ov490_write_reg(dev, OV490_GPIO_OUTPUT_VALUE0, OV490_GPIO0); - ov490_write_reg(dev, OV490_GPIO_OUTPUT_VALUE0, OV490_SPWDN0); usleep_range(3000, 5000); /* Read OV10640 ID to test communications. */ |