linux-stable/drivers/accel/qaic/qaic_timesync.h

/* SPDX-License-Identifier: GPL-2.0-only
 *
 * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
 */

#ifndef __QAIC_TIMESYNC_H__
#define __QAIC_TIMESYNC_H__

int qaic_timesync_init(void);
void qaic_timesync_deinit(void);
#endif /* __QAIC_TIMESYNC_H__ */
accel/qaic: Add support for periodic timesync Device and Host have a time synchronization mechanism that happens once during boot when device is in SBL mode. After that, in mission-mode there is no timesync. In an experiment after continuous operation, device time drifted w.r.t. host by approximately 3 seconds per day. This drift leads to mismatch in timestamp of device and Host logs. To correct this implement periodic timesync in driver. This timesync is carried out via QAIC_TIMESYNC_PERIODIC MHI channel. Signed-off-by: Ajit Pal Singh <quic_ajitpals@quicinc.com> Signed-off-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Reviewed-by: Carl Vanderlip <quic_carlv@quicinc.com> Reviewed-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com> Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231016170114.5446-2-quic_jhugo@quicinc.com 2023-10-16 17:01:13 +00:00			`/* SPDX-License-Identifier: GPL-2.0-only`
			`*`
			`* Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.`
			`*/`

			`#ifndef __QAIC_TIMESYNC_H__`
			`#define __QAIC_TIMESYNC_H__`

			`int qaic_timesync_init(void);`
			`void qaic_timesync_deinit(void);`
			`#endif /* __QAIC_TIMESYNC_H__ */`