diff options
| author | Vikas Jain <vjain@nvidia.com> | 2012-07-27 15:35:47 +0530 |
|---|---|---|
| committer | Varun Wadekar <vwadekar@nvidia.com> | 2012-08-06 16:13:43 +0530 |
| commit | eb107131e10faffc59b331e181667c4929b96b6a (patch) | |
| tree | 40cb1a65f25f1f1e5df38ebe7e6b8dfe5c8fafc3 /drivers/input | |
| parent | 463b8b7d06eb1dc51304502566f98443e289a3b3 (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 | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 4cb034197549..93f4f8967601 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 @@ -23,6 +23,9 @@ #include <linux/interrupt.h> #include <linux/slab.h> +#define CREATE_TRACE_POINTS +#include <trace/events/nvevent.h> + /* Family ID */ #define MXT224_ID 0x80 #define MXT768E_ID 0xA1 @@ -705,6 +708,7 @@ 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); } @@ -717,11 +721,15 @@ 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; @@ -740,6 +748,7 @@ 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; |