diff options
Diffstat (limited to 'drivers/media/i2c/hi556.c')
| -rw-r--r-- | drivers/media/i2c/hi556.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/media/i2c/hi556.c b/drivers/media/i2c/hi556.c index f31f9886c924..3c84cf07275f 100644 --- a/drivers/media/i2c/hi556.c +++ b/drivers/media/i2c/hi556.c @@ -1230,12 +1230,13 @@ static int hi556_check_hwcfg(struct device *dev) ret = fwnode_property_read_u32(fwnode, "clock-frequency", &mclk); if (ret) { dev_err(dev, "can't get clock frequency"); - return ret; + goto check_hwcfg_error; } if (mclk != HI556_MCLK) { dev_err(dev, "external clock %d is not supported", mclk); - return -EINVAL; + ret = -EINVAL; + goto check_hwcfg_error; } if (bus_cfg.bus.mipi_csi2.num_data_lanes != 2) { @@ -1320,7 +1321,12 @@ static int hi556_resume(struct device *dev) return ret; } - gpiod_set_value_cansleep(hi556->reset_gpio, 0); + if (hi556->reset_gpio) { + /* Assert reset for at least 2ms on back to back off-on */ + usleep_range(2000, 2200); + gpiod_set_value_cansleep(hi556->reset_gpio, 0); + } + usleep_range(5000, 5500); return 0; } |