Thread (12 messages) 12 messages, 4 authors, 2014-12-10

Re: [PATCH/RFC v9 06/19] DT: Add documentation for the mfd Maxim max77693

From: Jacek Anaszewski <hidden>
Date: 2014-12-08 10:29:27
Also in: linux-leds, linux-media, lkml

Hi Pavel,

On 12/04/2014 05:12 PM, Pavel Machek wrote:
Hi!
quoted
quoted
quoted
+- maxim,boost-mode :
+	In boost mode the device can produce up to 1.2A of total current
+	on both outputs. The maximum current on each output is reduced
+	to 625mA then. If there are two child led nodes defined then boost
+	is enabled by default.
+	Possible values:
+		MAX77693_LED_BOOST_OFF - no boost,
+		MAX77693_LED_BOOST_ADAPTIVE - adaptive mode,
+		MAX77693_LED_BOOST_FIXED - fixed mode.
+- maxim,boost-vout : Output voltage of the boost module in millivolts.
+- maxim,vsys-min : Low input voltage level in millivolts. Flash is not fired
+	if chip estimates that system voltage could drop below this level due
+	to flash power consumption.
+
+Required properties of the LED child node:
+- label : see Documentation/devicetree/bindings/leds/common.txt
+- maxim,fled_id : Identifier of the fled output the led is connected to;
I'm pretty sure this will be needed for about every chip that can drive
multiple LEDs. Shouldn't it be documented in the generic documentation?
OK.
Well... "fled_id" is not exactly suitable name. On other busses, it
would be "reg = <1>"?
I'm ok with "reg". This scheme is used for pca963x.txt and is described
as "number of LED line". We could define it similarly in the common.txt.
A device would have to specify the range of allowed values though.
I would add such a note to the generic binding.

Regards,
Jacek
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