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Commit 8aa45fbe authored by Ankit Gupta's avatar Ankit Gupta
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i2c-msm-v2: correct throughput calculation in i2c driver 



Calculation of throughput should not consider overhead bytes
as a result of tags. Only actual data should be used
to calculate the I2C throughput values.

Change-Id: I605a5284a3deef1ade4a70f064ac7af3b7b3edf6
Signed-off-by: default avatarAnkit Gupta <ankgupta@codeaurora.org>
parent 18c43109

drivers/platform/msm/i2c-msm-prof-dbg.c

+2 −3
Original line number Diff line number Diff line 
/* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.

/* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -571,8 +571,7 @@ void i2c_msm_prof_dump_xfer_end(struct i2c_msm_ctrl *ctrl, 
{

	int ret = event->data0;

	int err = event->data1;

	int bc  = ctrl->xfer.rx_cnt + ctrl->xfer.rx_ovrhd_cnt +

		  ctrl->xfer.tx_cnt + ctrl->xfer.tx_ovrhd_cnt;

	int bc  = ctrl->xfer.rx_cnt + ctrl->xfer.tx_cnt;

	int bc_sec = (bc * 1000000) / (msec * 1000 + usec);

	const char *status = (!err && (ret == ctrl->xfer.msg_cnt)) ?

								"OK" : "FAIL";