linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: broonie@opensource.wolfsonmicro.com (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 3/5] regulator: helper routine to extract regulator_init_data
Date: Thu, 13 Oct 2011 23:12:33 +0100	[thread overview]
Message-ID: <20111013221232.GB2866@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <20111013183821.GN18574@ponder.secretlab.ca>

On Thu, Oct 13, 2011 at 12:38:21PM -0600, Grant Likely wrote:

> These *sound* like flags that the driver would set based on its own
> capabilities; in which case it is something that would be encoded
> directly into the driver.

They're almost entirely a combination of system specifics and software
capabilities - it's not even reliably one or the other.  For example the
ability to switch regulator modes is going to depend on a combination of
the modes a specific regulator offers, the set of things connected to
the regulator in the current system (not all of which will be software
visible), how good all the connected consumer drivers are at providing
accurate information about what they're going to need from the system in
terms of quality of regulation and current draw and how good the board
design is in making these things reality.

For robustness (for some of these things if you get it wrong we're
talking catastrophic hardware failure) the Linux regulator API is
extremely conservative and won't touch the hardware unless explicitly
told that a specific thing is OK on a given board.

  reply	other threads:[~2011-10-13 22:12 UTC|newest]

Thread overview: 89+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-10 16:19 [PATCH v2 0/5] Device tree support for regulators Rajendra Nayak
2011-10-10 16:19 ` [PATCH v2 1/5] regulator: twl: Remove hardcoded board constraints from driver Rajendra Nayak
2011-10-10 16:25   ` Mark Brown
2011-10-10 16:34     ` Rajendra Nayak
2011-10-10 16:19 ` [PATCH v2 2/5] dt: add empty dt helpers for non-dt build Rajendra Nayak
2011-10-13 18:32   ` Grant Likely
2011-10-10 16:19 ` [PATCH v2 3/5] regulator: helper routine to extract regulator_init_data Rajendra Nayak
2011-10-10 17:22   ` Mark Brown
2011-10-11  5:59     ` Rajendra Nayak
2011-10-13 18:38       ` Grant Likely
2011-10-13 22:12         ` Mark Brown [this message]
2011-10-13 18:40   ` Grant Likely
2011-10-16 14:55   ` Shawn Guo
2011-10-17  4:17     ` Rajendra Nayak
2011-10-18 11:58       ` Shawn Guo
2011-10-18 16:00         ` Mark Brown
2011-10-19  5:33           ` Shawn Guo
2011-10-19 14:47             ` Mark Brown
2011-10-19 15:04               ` Shawn Guo
2011-10-19 15:10                 ` Mark Brown
2011-10-20  3:42                   ` Rajendra Nayak
2011-10-20  9:41                     ` Mark Brown
2011-10-20 12:10                       ` Rajendra Nayak
2011-10-20 16:27                       ` Tony Lindgren
2011-10-20 16:40                         ` Mark Brown
2011-10-20 17:05                           ` Tony Lindgren
2011-10-20 17:22                             ` Tony Lindgren
2011-10-20 19:57                               ` Mark Brown
2011-10-20 20:10                                 ` Tony Lindgren
2011-10-20 21:42                                   ` Mark Brown
2011-10-20 22:09                                     ` Tony Lindgren
2011-10-24  9:07                               ` Grant Likely
2011-10-20 19:56                             ` Mark Brown
2011-10-18 13:20   ` Shawn Guo
2011-10-19 11:35     ` Rajendra Nayak
2011-10-19 14:42       ` Shawn Guo
2011-10-19 14:50         ` Mark Brown
2011-10-20  5:18         ` Rajendra Nayak
2011-10-20  6:14           ` Shawn Guo
2011-10-20 12:09             ` Rajendra Nayak
2011-10-21  8:23               ` Shawn Guo
2011-10-21  8:41                 ` Rajendra Nayak
2011-10-21 11:58                   ` Shawn Guo
2011-10-24  6:02                     ` Rajendra Nayak
2011-10-24  7:34                       ` Mark Brown
2011-10-24  8:17                       ` Grant Likely
2011-10-24  8:53                         ` Rajendra Nayak
2011-10-24  9:19                           ` Mark Brown
2011-10-24 10:05                             ` Rajendra Nayak
2011-10-24  9:23                           ` Shawn Guo
2011-10-24  9:02                         ` Shawn Guo
2011-10-24  8:56                           ` Rajendra Nayak
2011-10-24  9:11                             ` Shawn Guo
2011-10-24  9:13                               ` Rajendra Nayak
2011-10-24 13:47                                 ` Shawn Guo
2011-10-25  6:00                                   ` Rajendra Nayak
2011-10-25  6:26                                     ` Rajendra Nayak
2011-10-25  6:52                                     ` Shawn Guo
2011-10-25  6:56                                       ` Rajendra Nayak
2011-10-25  7:20                                         ` Shawn Guo
2011-10-25  7:13                                           ` Rajendra Nayak
2011-10-25  7:42                                             ` Shawn Guo
2011-10-24 11:35                               ` Grant Likely
2011-10-24  9:24                 ` Grant Likely
2011-10-24  9:39                   ` Mark Brown
2011-10-24 13:04                   ` Shawn Guo
2011-10-24 13:06                     ` Mark Brown
2011-10-24 13:40                       ` Shawn Guo
2011-10-24 13:49                         ` Mark Brown
2011-10-24 14:47                           ` Shawn Guo
2011-10-25  7:11                             ` Mark Brown
2011-10-24 13:59                         ` Grant Likely
2011-10-24 14:51                           ` Shawn Guo
2011-10-24 14:56                             ` Grant Likely
2011-10-24 15:51                               ` Shawn Guo
2011-10-24 22:21                                 ` Grant Likely
2011-10-25  6:10                                 ` Rajendra Nayak
2011-10-25  7:08                                   ` Shawn Guo
2011-10-25  7:01                                     ` Rajendra Nayak
2011-10-25  7:28                                       ` Shawn Guo
2011-10-10 16:19 ` [PATCH v2 4/5] regulator: adapt fixed regulator driver to dt Rajendra Nayak
2011-10-13 18:43   ` Grant Likely
2011-10-10 16:19 ` [PATCH v2 5/5] regulator: map consumer regulator based on device tree Rajendra Nayak
2011-10-10 17:35   ` Mark Brown
2011-10-11  5:49     ` Rajendra Nayak
2011-10-11  7:08     ` Nayak, Rajendra
2011-10-13 16:52       ` Mark Brown
2011-10-13 18:46       ` Grant Likely
2011-10-18 13:33   ` Shawn Guo

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=20111013221232.GB2866@opensource.wolfsonmicro.com \
    --to=broonie@opensource.wolfsonmicro.com \
    --cc=linux-arm-kernel@lists.infradead.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).