From mboxrd@z Thu Jan 1 00:00:00 1970 From: balbi@ti.com (Felipe Balbi) Date: Wed, 18 Jun 2014 18:23:27 -0500 Subject: [PATCH v2 2/2] arm: dts: add support for AM437x StarterKit In-Reply-To: <20140618231923.GA9855@saruman.home> References: <1403106200-777-1-git-send-email-balbi@ti.com> <1403106200-777-3-git-send-email-balbi@ti.com> <53A1BADD.7050309@ti.com> <20140618193113.GC4570@saruman.home> <53A20A7D.3060508@ti.com> <20140618231923.GA9855@saruman.home> Message-ID: <20140618232327.GC9855@saruman.home> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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: