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Commit cfc8de97 authored by Sujeev Dias's avatar Sujeev Dias
Browse files

mhi: controller: qcom: add support to capture local SoC time 



For syncronization between local SoC and remote SoC time, time_get
support is added. Time_get returns local host SoC XO clock time in
ticks.

CRs-Fixed: 2306423
Change-Id: I76886feac00f994bad8968cf8ac837341624aa08
Acked-by: default avatarBhaumik Vasav Bhatt <bbhatt@qti.qualcomm.com>
Signed-off-by: default avatarSujeev Dias <sdias@codeaurora.org>
parent 5193a94c

drivers/bus/mhi/controllers/mhi_qcom.c

+9 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/* Copyright (c) 2018, The Linux Foundation. All rights reserved.*/



#include <asm/arch_timer.h>

#include <linux/debugfs.h>

#include <linux/device.h>

#include <linux/dma-direction.h>
@@ -318,6 +319,12 @@ static void mhi_status_cb(struct mhi_controller *mhi_cntrl, 
	}

}



/* capture host SoC XO time in ticks */

static u64 mhi_time_get(struct mhi_controller *mhi_cntrl, void *priv)

{

	return arch_counter_get_cntvct();

}



int mhi_debugfs_trigger_m0(void *data, u64 val)

{

	struct mhi_controller *mhi_cntrl = data;
@@ -478,6 +485,8 @@ static struct mhi_controller *mhi_register_controller(struct pci_dev *pci_dev) 
	mhi_cntrl->runtime_put = mhi_runtime_put;

	mhi_cntrl->link_status = mhi_link_status;



	mhi_cntrl->time_get = mhi_time_get;



	ret = of_register_mhi_controller(mhi_cntrl);

	if (ret)

		goto error_register;