From mboxrd@z Thu Jan 1 00:00:00 1970 From: balbi@ti.com (Felipe Balbi) Date: Sat, 27 Dec 2014 15:25:53 -0600 Subject: [PATCH 3/7] mfd: menelaus: add initial DT support In-Reply-To: <1419702779-16001-4-git-send-email-aaro.koskinen@iki.fi> References: <1419702779-16001-1-git-send-email-aaro.koskinen@iki.fi> <1419702779-16001-4-git-send-email-aaro.koskinen@iki.fi> Message-ID: <20141227212553.GA21729@saruman> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sat, Dec 27, 2014 at 07:52:55PM +0200, Aaro Koskinen wrote: > Add initial DT support. > > Signed-off-by: Aaro Koskinen > --- > Documentation/devicetree/bindings/mfd/menelaus.txt | 30 +++++++++++++ > drivers/mfd/menelaus.c | 52 ++++++++++++++++++++-- > 2 files changed, 78 insertions(+), 4 deletions(-) > create mode 100644 Documentation/devicetree/bindings/mfd/menelaus.txt > > diff --git a/Documentation/devicetree/bindings/mfd/menelaus.txt b/Documentation/devicetree/bindings/mfd/menelaus.txt > new file mode 100644 > index 0000000..5f69f23 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/menelaus.txt > @@ -0,0 +1,30 @@ > +Menelaus (Texas Instruments TWL92330) Power Management chip > + > +Menelaus provides facilities to control the power resources. > + > +Required properties: > +- compatible: must be "menelaus" > +- reg: I2C address of the chip > + > +Optional properties: > +- interrupts: the interrupt > +- ti,autosleep: All regulators are put to sleep by default. > +- ti,vcore-min-microvolt: Range floor for the HW controlled VCORE > +- ti,vcore-max-microvolt: Range roof for the HW controlled VCORE > + > +The use of ti,autosleep is recommended at least on Nokia N800/N810. > + > +Example: > + > +&i2c1 { > + clock-frequency = <400000>; > + > + pmic at 72 { > + compatible = "menelaus"; > + reg = <0x72>; > + interrupts = <7 IRQ_TYPE_EDGE_RISING>; > + ti,autosleep; > + ti,vcore-min-microvolt = <1050000>; > + ti,vcore-max-microvolt = <1400000>; looks like these should be first converted to actual regulators otherwise we will have to maintain this binding forever which means that any effort of adding regulator fwk support for menelaus will become a lot more difficult because it'll have to cope with the legacy/bogus binding. I started doing irqchip/irqdomain conversion but I don't have where to test and got side-tracked by other stuff. I'll see if I can restart that work early next year. Then, if you change your series so that first you add proper regulator fwk support, we should be pretty good with menelaus. -- balbi -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: Digital signature URL: