mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Vanalme Filip <F.Vanalme@TELEVIC.com>
To: "barebox@lists.infradead.org" <barebox@lists.infradead.org>
Subject: lcd clock
Date: Mon, 11 Apr 2011 13:54:17 +0200	[thread overview]
Message-ID: <6EE7D1502C48E44E92DCADF9DD3E0DB90187A40D5121@SRV-VS06.TELEVIC.COM> (raw)


[-- Attachment #1.1: Type: text/plain, Size: 716 bytes --]

Hi,

Is there any specific reason why the (i.MX27) LCDC clocks are disabled in imxfb_probe() (drivers\imx.c) ?

#ifdef CONFIG_ARCH_IMX27
PCCR0 &= ~PCCR0_LCDC_EN;
PCCR1 &= ~PCCR1_HCLK_LCDC;
#endif

I would have expected the clocks to be enabled in that routine.

I'm experimenting a little with Barebox's 'bmp' command. Although the command did not return any error, I did not have any output on my lcd. Then I noticed that the LCDC clocks were not enabled. If the clocks were not enabled by default in the probe function, I would expect the enabling in the bmp command code, e.g. with FBIO_ENABLE ioctl command. But, as far as I can see, FBIO_ENABLE is not executed in the bmp command code.

Filip



[-- Attachment #1.2: Type: text/html, Size: 4507 bytes --]

[-- Attachment #2: Type: text/plain, Size: 149 bytes --]

_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox

             reply	other threads:[~2011-04-11 11:54 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-11 11:54 Vanalme Filip [this message]
2011-04-11 12:19 ` Juergen Beisert

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=6EE7D1502C48E44E92DCADF9DD3E0DB90187A40D5121@SRV-VS06.TELEVIC.COM \
    --to=f.vanalme@televic.com \
    --cc=barebox@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