linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: balbi@ti.com (Felipe Balbi)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/2] arm: dts: add support for AM437x StarterKit
Date: Wed, 18 Jun 2014 18:23:27 -0500	[thread overview]
Message-ID: <20140618232327.GC9855@saruman.home> (raw)
In-Reply-To: <20140618231923.GA9855@saruman.home>

Hi,

(side note)

On Wed, Jun 18, 2014 at 06:19:23PM -0500, Felipe Balbi wrote:
> > >>>+		interrupt-controller;
> > >>>+		#interrupt-cells = <2>;
> > >>>+
> > >>>+		dcdc1: regulator-dcdc1 {
> > >>>+			compatible = "ti,tps65218-dcdc1";
> > >>>+			/* VDD_CORE limits min of OPP50 and max of OPP100 */
> > >>>+			regulator-name = "vdd_core";
> > >>>+			regulator-min-microvolt = <912000>;
> > >>>+			regulator-max-microvolt = <1144000>;
> > >>>+			regulator-boot-on;
> > >>>+			regulator-always-on;
> > >>>+		};
> > >>>+
> > >>>+		dcdc2: regulator-dcdc2 {
> > >>>+			compatible = "ti,tps65218-dcdc2";
> > >>>+			/* VDD_MPU limits min of OPP50 and max of OPP_NITRO */
> > >>>+			regulator-name = "vdd_mpu";
> > >>>+			regulator-min-microvolt = <912000>;
> > >>>+			regulator-max-microvolt = <1378000>;
> > >>>+			regulator-boot-on;
> > >>>+			regulator-always-on;
> > >>>+		};
> > >>>+
> > >>>+		dcdc3: regulator-dcdc3 {
> > >>>+			compatible = "ti,tps65218-dcdc3";
> > >>>+			regulator-name = "vdds_ddr";
> > >>no voltage ?
> > >
> > >has no users in kernel. Also, it comes out with default, and correct,
> > >voltage.
> > 
> > Device tree is description of hardware, not just who uses what in OS
> > of interest.
> 
> then we should start "fixing" every single DTS in the kernel because I'm
> sure even LEDs and keypads are tied to some sort of supply, as is the
> case with this board. No driver will use it though.
> 
> Also, I couldn't find anywhere which voltage is dcdc3 outputing and
> there's no shunt anywhere (other than a 0 ohm resistor) to measure
> voltage. So I kinda have my hands tied here.
> 
> (goes review schematics)
> 
> actually there's 0.05 ohm sense resistor. Hopefully it's easy to access.

1.35v

-- 
balbi
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20140618/de3bf90a/attachment.sig>

  reply	other threads:[~2014-06-18 23:23 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-18 15:43 [PATCH v2 0/2] arm: dts: add support for am437x sk Felipe Balbi
2014-06-18 15:43 ` [PATCH v2 1/2] arm: dts: am4372: let boards enable RTC and Watchdog Felipe Balbi
2014-06-18 15:55   ` Nishanth Menon
2014-06-18 19:25     ` Felipe Balbi
2014-06-18 21:43       ` Nishanth Menon
2014-06-18 21:51         ` Felipe Balbi
2014-06-18 21:55           ` Nishanth Menon
2014-06-18 15:43 ` [PATCH v2 2/2] arm: dts: add support for AM437x StarterKit Felipe Balbi
2014-06-18 16:14   ` Nishanth Menon
2014-06-18 19:31     ` Felipe Balbi
2014-06-18 21:54       ` Nishanth Menon
2014-06-18 23:19         ` Felipe Balbi
2014-06-18 23:23           ` Felipe Balbi [this message]
2014-06-19  2:26           ` Nishanth Menon
2014-06-19  3:05             ` Felipe Balbi
2014-06-19  3:17               ` Nishanth Menon
2014-06-19  4:02                 ` Felipe Balbi

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=20140618232327.GC9855@saruman.home \
    --to=balbi@ti.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).