From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Javier Martinez Canillas <javier@dowhile0.org>,
Henrik Rydberg <rydberg@bitmath.org>,
linux-input@vger.kernel.org
Subject: Re: [PATCH 5/8 v3] Input: cyttsp - Reduce reset pulse timings
Date: Sat, 10 Apr 2021 00:32:37 -0700 [thread overview]
Message-ID: <YHFUlUdNLGSpPR7x@google.com> (raw)
In-Reply-To: <20210408131153.3446138-6-linus.walleij@linaro.org>
On Thu, Apr 08, 2021 at 03:11:50PM +0200, Linus Walleij wrote:
> The data sheet for CY8CTMA340 specifies that the reset pulse
> shall be at least 1 ms. Specify 1-2 ms with usleep_range()
> to cut some slack for the scheduler.
>
> Curiously the datasheet does not specify how long we have to
> wait after a hard reset until the chip is up, but I have found
> a vendor tree (Samsung GT-S7710) that has code for this touch
> screen and there this is set to 5 ms so I use this with
> the same 1 ms fuzz.
>
> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Applied, thank you.
--
Dmitry
next prev parent reply other threads:[~2021-04-10 7:32 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-08 13:11 [PATCH 0/8 v3] Update CYTTSP driver Linus Walleij
2021-04-08 13:11 ` [PATCH 1/8 v3] Input: cyttsp - Convert bindings to YAML and extend Linus Walleij
2021-04-10 7:44 ` Dmitry Torokhov
2021-04-08 13:11 ` [PATCH 2/8 v3] Input: cyttsp - Probe from compatibles Linus Walleij
2021-04-08 13:11 ` [PATCH 3/8 v3] Input: cyttsp - Obtain regulators Linus Walleij
2021-04-08 13:11 ` [PATCH 4/8 v3] Input: cyttsp - Error message on boot mode exit error Linus Walleij
2021-04-10 7:31 ` Dmitry Torokhov
2021-04-08 13:11 ` [PATCH 5/8 v3] Input: cyttsp - Reduce reset pulse timings Linus Walleij
2021-04-10 7:32 ` Dmitry Torokhov [this message]
2021-04-08 13:11 ` [PATCH 6/8 v3] Input: cyttsp - Drop the phys path Linus Walleij
2021-04-10 7:33 ` Dmitry Torokhov
2021-04-08 13:11 ` [PATCH 7/8 v3] Input: cyttsp - Set abs params for ABS_MT_TOUCH_MAJOR Linus Walleij
2021-04-10 7:34 ` Dmitry Torokhov
2021-04-08 13:11 ` [PATCH 8/8 v3] Input: cyttsp - Flag the device properly Linus Walleij
2021-04-10 7:41 ` Dmitry Torokhov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YHFUlUdNLGSpPR7x@google.com \
--to=dmitry.torokhov@gmail.com \
--cc=javier@dowhile0.org \
--cc=linus.walleij@linaro.org \
--cc=linux-input@vger.kernel.org \
--cc=rydberg@bitmath.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).