diff options
| author | Vikas Jain <vjain@nvidia.com> | 2012-07-27 15:35:47 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-08-03 14:01:22 -0700 |
| commit | 73c300b0f598a63d8557819614d62c0c7ea8d891 (patch) | |
| tree | 047337f43e262f7c54da097d605fae41700a262a /drivers/input | |
| parent | 5647ca7f3fe44781a3b9a49f3215d8c629d78f49 (diff) | |
input: touch: atmel_mxt_ts: Add Ftrace logging.
This change assists automating system wide
touch driver performance.
Bug 928954
Change-Id: Iea21dfea1c31748ce5835652cecc0856c4f4028d
Signed-off-by: Vikas Jain <vjain@nvidia.com>
Reviewed-on: http://git-master/r/118984
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: David Jung <djung@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/touchscreen/atmel_mxt_ts.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index ad21ef9c0105..6721a1fd2456 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -3,7 +3,7 @@ * * Copyright (C) 2010 Samsung Electronics Co.Ltd * Copyright (C) 2011 Atmel Corporation - * Copyright (C) 2011 NVIDIA Corporation + * Copyright (C) 2011-2012 NVIDIA Corporation * Author: Joonyoung Shim <jy0922.shim@samsung.com> * * This program is free software; you can redistribute it and/or modify it @@ -25,6 +25,8 @@ #if defined(CONFIG_HAS_EARLYSUSPEND) #include <linux/earlysuspend.h> #endif +#define CREATE_TRACE_POINTS +#include <trace/events/nvevent.h> /* Family ID */ #define MXT224_ID 0x80 @@ -716,6 +718,7 @@ static void mxt_input_touchevent(struct mxt_data *data, finger[id].area = area; finger[id].pressure = pressure; + trace_nvevent_irq_data_submit("mxt_input_touchevent"); mxt_input_report(data, id); } @@ -728,11 +731,15 @@ static irqreturn_t mxt_interrupt(int irq, void *dev_id) int touchid; u8 reportid; + trace_nvevent_irq_data_read_start_series("mxt_input_interrupt"); do { + trace_nvevent_irq_data_read_start_single("mxt_input_interrupt"); if (mxt_read_message(data, &message)) { dev_err(dev, "Failed to read message\n"); goto end; } + trace_nvevent_irq_data_read_finish_single( + "mxt_input_interrupt"); reportid = message.reportid; @@ -751,6 +758,7 @@ static irqreturn_t mxt_interrupt(int irq, void *dev_id) } else if (reportid != MXT_RPTID_NOMSG) mxt_dump_message(dev, &message); } while (reportid != MXT_RPTID_NOMSG); + trace_nvevent_irq_data_read_finish_series("mxt_input_interrupt"); end: return IRQ_HANDLED; |