linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Rodolfo Giometti <giometti@enneenne.com>
To: "N, Pandith" <pandith.n@intel.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"Sangannavar,
	Mallikarjunappa"  <mallikarjunappa.sangannavar@intel.com>,
	"D, Lakshmi Sowjanya" <lakshmi.sowjanya.d@intel.com>,
	"T R, Thejesh Reddy" <thejesh.reddy.t.r@intel.com>,
	"Hall, Christopher S" <christopher.s.hall@intel.com>
Subject: Re: PPS functionality for Intel Timed I/O
Date: Mon, 30 Jan 2023 15:26:55 +0100	[thread overview]
Message-ID: <1e02cc71-baee-1e75-9160-062d563af795@enneenne.com> (raw)
In-Reply-To: <BYAPR11MB3240801F21598EEFAEA79605E1D39@BYAPR11MB3240.namprd11.prod.outlook.com>

On 30/01/23 15:11, N, Pandith wrote:
> Here is a presentation link for Timed I/O device
> https://lpc.events/event/16/contributions/1387/attachments/1051/2010/Timed_IO_LPC.pdf

Thanks. I'll take a look at it.

> Intel Timed I/O PIN has both generator functionality and input capability.
> Wanted to ask if it’s better to have two separate drivers, one under client
> for input and other as generator driver for PPS output.
> OR
> Have a single client driver and user can choose the functionality (either
> PPS output or as PPS source to capture pulses with timestamps).
Within kernel sources PPS clients and PPS generators are placed into different 
directories, so I suppose is better to deploy two different pieces of code.

However pay attention to the fact that a PPS generator should be referred to 
system's main clock and not to peripherals' clock.

Ciao,

Rodolfo

-- 
GNU/Linux Solutions                  e-mail: giometti@enneenne.com
Linux Device Driver                          giometti@linux.it
Embedded Systems                     phone:  +39 349 2432127
UNIX programming                     skype:  rodolfo.giometti


  reply	other threads:[~2023-01-30 14:28 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-30 12:55 PPS functionality for Intel Timed I/O N, Pandith
2023-01-30 13:45 ` Rodolfo Giometti
2023-01-30 14:11   ` N, Pandith
2023-01-30 14:26     ` Rodolfo Giometti [this message]
2023-02-06 10:16       ` N, Pandith
2023-02-06 10:46         ` Rodolfo Giometti
2023-02-15  7:09           ` N, Pandith
2023-02-15  7:46             ` Rodolfo Giometti
2023-10-06  5:31               ` N, Pandith
2023-10-06  6:23                 ` Rodolfo Giometti
2023-10-06  8:34                   ` andriy.shevchenko
2023-10-06  8:34                     ` andriy.shevchenko
2023-10-06  8:57                       ` Rodolfo Giometti
2023-10-06  9:06                         ` andriy.shevchenko

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=1e02cc71-baee-1e75-9160-062d563af795@enneenne.com \
    --to=giometti@enneenne.com \
    --cc=christopher.s.hall@intel.com \
    --cc=lakshmi.sowjanya.d@intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mallikarjunappa.sangannavar@intel.com \
    --cc=pandith.n@intel.com \
    --cc=thejesh.reddy.t.r@intel.com \
    /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).