From: David Laight <David.Laight@ACULAB.COM>
To: 'Dmitry Torokhov' <dmitry.torokhov@gmail.com>,
"linux-input@vger.kernel.org" <linux-input@vger.kernel.org>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>,
Marco Felsch <m.felsch@pengutronix.de>,
Benoit Parrot <bparrot@ti.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH 1/2] Input: edt-ft5x06 - use get_unaligned_be16()
Date: Tue, 25 Jun 2019 08:44:29 +0000 [thread overview]
Message-ID: <011d62995b20493f977ead43f4b494a2@AcuMS.aculab.com> (raw)
In-Reply-To: <20190623063153.261546-1-dmitry.torokhov@gmail.com>
From: Dmitry Torokhov
> Sent: 23 June 2019 07:32
>
> Instead of doing conversion by hand, let's use the proper accessors.
>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> ---
> drivers/input/touchscreen/edt-ft5x06.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
> index c639ebce914c..ec770226e119 100644
> --- a/drivers/input/touchscreen/edt-ft5x06.c
> +++ b/drivers/input/touchscreen/edt-ft5x06.c
> @@ -27,6 +27,7 @@
> #include <linux/gpio/consumer.h>
> #include <linux/input/mt.h>
> #include <linux/input/touchscreen.h>
> +#include <asm/unaligned.h>
>
> #define WORK_REGISTER_THRESHOLD 0x00
> #define WORK_REGISTER_REPORT_RATE 0x08
> @@ -239,8 +240,8 @@ static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id)
> if (tsdata->version == EDT_M06 && type == TOUCH_EVENT_DOWN)
> continue;
>
> - x = ((buf[0] << 8) | buf[1]) & 0x0fff;
> - y = ((buf[2] << 8) | buf[3]) & 0x0fff;
> + x = get_unaligned_be16(buf) & 0x0fff;
> + y = get_unaligned_be16(buf + 2) & 0x0fff;
You might as well delete the pointless masking with 0xff.
David
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
next prev parent reply other threads:[~2019-06-25 8:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-23 6:31 [PATCH 1/2] Input: edt-ft5x06 - use get_unaligned_be16() Dmitry Torokhov
2019-06-23 6:31 ` [PATCH 2/2] Input: edt-ft5x06 - simplify event reporting code Dmitry Torokhov
2019-06-23 7:59 ` Andy Shevchenko
2019-06-30 7:05 ` Dmitry Torokhov
2019-07-01 10:41 ` Andy Shevchenko
2019-06-28 17:37 ` Benoit Parrot
2019-06-23 8:00 ` [PATCH 1/2] Input: edt-ft5x06 - use get_unaligned_be16() Andy Shevchenko
2019-06-25 8:44 ` David Laight [this message]
2019-06-25 10:50 ` Andy Shevchenko
2019-06-25 13:00 ` David Laight
2019-06-28 17:36 ` Benoit Parrot
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