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Commit 3ba2a4fa authored by Harsh Shah's avatar Harsh Shah
Browse files

msm: camera: isp: Change timestamp from QTimer to nanosecond 



All subsystems are using timestamps in seconds, so to keep AV
sync camera also needs to change QTimer ticks to time domain.

Change-Id: I55fe8cf796d577e182177b11aa7a715595c5aa14
Signed-off-by: default avatarHarsh Shah <harshs@codeaurora.org>
parent 34dc2654

drivers/media/platform/msm/camera/cam_isp/isp_hw_mgr/isp_hw/ife_csid_hw/cam_ife_csid_core.c

+14 −0
Original line number Diff line number Diff line
@@ -32,6 +32,15 @@ 
#define CAM_IFE_CSID_TIMEOUT_SLEEP_US                  1000

#define CAM_IFE_CSID_TIMEOUT_ALL_US                    1000000



/*

 * Constant Factors needed to change QTimer ticks to nanoseconds

 * QTimer Freq = 19.2 MHz

 * Time(us) = ticks/19.2

 * Time(ns) = ticks/19.2 * 1000

 */

#define CAM_IFE_CSID_QTIMER_MUL_FACTOR                 10000

#define CAM_IFE_CSID_QTIMER_DIV_FACTOR                 192



static int cam_ife_csid_is_ipp_format_supported(

	uint32_t in_format)

{
@@ -1972,6 +1981,11 @@ static int cam_ife_csid_get_time_stamp( 
		time_stamp->time_stamp_val |= time_32;

	}



	time_stamp->time_stamp_val = mul_u64_u32_div(

		time_stamp->time_stamp_val,

		CAM_IFE_CSID_QTIMER_MUL_FACTOR,

		CAM_IFE_CSID_QTIMER_DIV_FACTOR);



	return 0;

}