From: Jiri Kosina <jkosina@suse.cz>
To: "Bruno Prémont" <bonbons@linux-vserver.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
linux-input@vger.kernel.org, linux-usb@vger.kernel.org,
linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org,
"Rick L. Vinyard Jr." <rvinyard@cs.nmsu.edu>,
Nicu Pavel <npavel@ituner.com>, Oliver Neukum <oliver@neukum.org>,
Jaya Kumar <jayakumar.lkml@gmail.com>
Subject: Re: [PATCH v4 1/6] hid: new driver for PicoLCD device
Date: Tue, 30 Mar 2010 08:12:05 +0000 [thread overview]
Message-ID: <alpine.LNX.2.00.1003301010410.24576@pobox.suse.cz> (raw)
In-Reply-To: <20100329121611.0c22dcaf@pluto.restena.lu>
On Mon, 29 Mar 2010, Bruno Prémont wrote:
> > > +static struct hid_driver picolcd_driver = {
> > > + .name = "hid-picolcd",
> > > + .id_table = picolcd_devices,
> > > + .probe = picolcd_probe,
> > > + .remove = picolcd_remove,
> > > + .raw_event = picolcd_raw_event,
> > > +#ifdef CONFIG_PM
> > > + .suspend = picolcd_suspend,
> > > + .resume = picolcd_resume,
> > > + .reset_resume = picolcd_reset_resume,
> > > +#endif
> > > +};
> >
> > struct hid_driver doesn't provide power-management related callbacks.
> > So I guess that you have either not tested this feature at all, or
> > you have some extra patch somewhere which adds such callbacks to HID
> > core, but you haven't sent it out for review?
> >
> > In any cases, this will very likely cause compilation failure with
> > CONFIG_PM turned on.
>
> That's the patch I referred to (under series introduction mail) when
> saying:
> > The series depends on my previous patch adding HID suspend support
> > (I've not yet looked at improving it).
>
> Link to the patch:
> http://lkml.org/lkml/2010/2/24/233
>
> Especially the reset-resume part is important as the device has to be
> reprogrammed with framebuffer content, brightness/contrast in that case.
>
> As stated, Oliver didn't like the implementation of the addition of
> those hooks too much and I have yet to look at improving it.
Ah, OK, I have missed that one, thanks for pointing it out.
The driver itself now looks fine to me and I am willing to merge it,
modulo the power-management code -- so please either remove the parts that
depend on power management for now, or I'll wait on your respin of the
generic HID-PM patch.
Thanks,
--
Jiri Kosina
SUSE Labs, Novell Inc.
next prev parent reply other threads:[~2010-03-30 8:12 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-24 22:37 [PATCH v3 0/6] hid: new driver for PicoLCD device Bruno Prémont
2010-03-24 22:49 ` [PATCH v3 2/6] hid: add framebuffer support to " Bruno Prémont
2010-03-27 0:22 ` [PATCH v4 " Bruno Prémont
2010-03-29 20:30 ` [PATCH v5 " Bruno Prémont
2010-03-24 22:51 ` [PATCH v3 3/6] hid: add backlight " Bruno Prémont
2010-03-24 22:54 ` [PATCH v3 4/6] hid: add lcd " Bruno Prémont
[not found] ` <20100324233707.7243b04d-hY15tx4IgV39zxVx7UNMDg@public.gmane.org>
2010-03-24 22:40 ` [PATCH v3 1/6] hid: new driver for " Bruno Prémont
2010-03-26 6:56 ` Dmitry Torokhov
2010-03-26 9:29 ` Bruno Prémont
2010-03-26 20:59 ` Jiri Kosina
2010-03-26 21:16 ` Dmitry Torokhov
2010-03-26 21:39 ` Bruno Prémont
2010-03-27 0:22 ` [PATCH v4 " Bruno Prémont
2010-03-29 9:47 ` Jiri Kosina
2010-03-29 10:16 ` Bruno Prémont
2010-03-30 8:12 ` Jiri Kosina [this message]
2010-03-30 20:32 ` [PATCH v6 0/8] " Bruno Prémont
2010-03-30 20:33 ` [PATCH v6 1/8] " Bruno Prémont
2010-04-01 16:58 ` Oliver Neukum
2010-04-25 19:29 ` [PATCH] hid: split picolcd's operation_mode sysfs attribute Bruno Prémont
2010-04-27 13:32 ` Jiri Kosina
2010-03-30 20:34 ` [PATCH v6 2/8] hid: add framebuffer support to PicoLCD device Bruno Prémont
[not found] ` <20100330223224.18fe4f3e-hY15tx4IgV39zxVx7UNMDg@public.gmane.org>
2010-03-30 20:35 ` [PATCH v6 3/8] hid: add backlight " Bruno Prémont
2010-03-30 20:36 ` [PATCH v6 4/8] hid: add lcd " Bruno Prémont
2010-03-30 20:36 ` [PATCH v6 5/8] hid: add GPO (leds) " Bruno Prémont
2010-03-30 20:38 ` [PATCH v6 6/8] hid: add experimental access to PicoLCD device's Bruno Prémont
2010-03-30 20:42 ` [PATCH v6 7/8, needs improvement] hid: add suspend/resume hooks for Bruno Prémont
2010-03-31 12:15 ` [PATCH v6 7/8, needs improvement] hid: add suspend/resume hooks Jiri Kosina
2010-03-30 20:43 ` [PATCH v6 8/8] hid: add PM support to PicoLCD device Bruno Prémont
2010-03-31 9:28 ` [PATCH v6 0/8] hid: new driver for " Jiri Kosina
2010-03-24 22:55 ` [PATCH v3 5/6] hid: add GPO (leds) support to " Bruno Prémont
2010-03-24 22:58 ` [PATCH v3 6/6] hid: add experimental access to PicoLCD device's Bruno Prémont
2010-03-29 9:44 ` Jiri Kosina
[not found] ` <alpine.LNX.2.00.1003291142400.24576-ztGlSCb7Y1iN3ZZ/Hiejyg@public.gmane.org>
2010-03-29 20:34 ` [PATCH v4 " Bruno Prémont
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=alpine.LNX.2.00.1003301010410.24576@pobox.suse.cz \
--to=jkosina@suse.cz \
--cc=bonbons@linux-vserver.org \
--cc=dmitry.torokhov@gmail.com \
--cc=jayakumar.lkml@gmail.com \
--cc=linux-fbdev@vger.kernel.org \
--cc=linux-input@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=npavel@ituner.com \
--cc=oliver@neukum.org \
--cc=rvinyard@cs.nmsu.edu \
/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).