Hi Daniel,
On Tue, Jan 28, 2014 at 03:55:57PM +0900, Daniel Jeong wrote:
> Add additional FLASH Fault bits to dectect faults from chip.
> Some Flash drivers support UVLO, IVFM, NTC Trip faults.
> UVLO : Under Voltage Lock Out Threshold crossed
> IVFM : IVFM block reported and/or adjusted LED current Input Voltage Flash Monitor trip threshold
> NTC : NTC Threshold crossed. Many Flash drivers have a pin and the fault bit to
> serves as a threshold detector for negative temperature coefficient (NTC) thermistors.
>
> Signed-off-by: Daniel Jeong <gshark.jeong@xxxxxxxxx>
> ---
> include/uapi/linux/v4l2-controls.h | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
> index 1666aab..01d730c 100644
> --- a/include/uapi/linux/v4l2-controls.h
> +++ b/include/uapi/linux/v4l2-controls.h
> @@ -803,6 +803,9 @@ enum v4l2_flash_strobe_source {
> #define V4L2_FLASH_FAULT_SHORT_CIRCUIT (1 << 3)
> #define V4L2_FLASH_FAULT_OVER_CURRENT (1 << 4)
> #define V4L2_FLASH_FAULT_INDICATOR (1 << 5)
> +#define V4L2_FLASH_FAULT_UVLO (1 << 6)
> +#define V4L2_FLASH_FAULT_IVFM (1 << 7)
> +#define V4L2_FLASH_FAULT_NTC_TRIP (1 << 8)
I object adding a new fault which is essentially the same as an existing
fault, V4L2_FLASH_FAULT_OVER_TEMPERATURE.
As the practice has been to use human-readable names for the faults, I'd
also suggest using V4L2_FLASH_FAULT_UNDER_VOLTAGE instead of
V4L2_FLASH_FAULT_UVLO.
What's the IVFM block and what does it do?
> #define V4L2_CID_FLASH_CHARGE (V4L2_CID_FLASH_CLASS_BASE + 11)
> #define V4L2_CID_FLASH_READY (V4L2_CID_FLASH_CLASS_BASE + 12)
--
Kind regards,
Sakari Ailus
e-mail: sakari.ailus@xxxxxx XMPP: sailus@xxxxxxxxxxxxxx
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