linux-kernel - Re: [RFC PATCH 2/2] mfd: rohm-bd71828: Add power off functionality

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Message-ID: <20240325141032.GO13211@google.com>
Date: Mon, 25 Mar 2024 14:10:32 +0000
From: Lee Jones <lee@...nel.org>
To: Matti Vaittinen <mazziesaccount@...il.com>
Cc: Andreas Kemnade <andreas@...nade.info>, robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev
Subject: Re: [RFC PATCH 2/2] mfd: rohm-bd71828: Add power off functionality

On Mon, 25 Mar 2024, Matti Vaittinen wrote:

> Hi Andreas,
> 
> On 3/25/24 14:16, Andreas Kemnade wrote:
> > On Mon, 25 Mar 2024 13:31:15 +0200
> > Matti Vaittinen <mazziesaccount@...il.com> wrote:
> > 
> > > On 3/24/24 22:12, Andreas Kemnade wrote:
> > > > Since the chip can power off the system, add the corresponding
> > > > functionality.
> > > > Based on https://github.com/kobolabs/Kobo-Reader/raw/master/hw/imx6sll-clara2e/kernel.tar.bz2
> > > > No information source about the magic numbers found.
> > > 
> > > Oh, interesting repository :) Thanks for linking to it! I didn't know
> > > someone had reworked this driver...
> > > 
> > which btw: contains this interesting snippet (output from fdtdump)
> >    bd71828-i2c@4b {
> >                      reg = <0x0000004b>;
> >                      compatible = "rohm,bd71828";
> >                      gpio_int = <0x00000008 0x00000013 0x00000001>;
> >                      gpio_wdogb = <0x00000039 0x00000018 0x00000001>;
> >                      #address-cells = <0x00000001>;
> >                      #size-cells = <0x00000000>;
> >                      pmic@4b {
> >                          compatible = "rohm,bd71828";
> >               	        regulators {
> >                          	BUCK1 {
> >                              		regulator-name = "buck1";
> > 
> > 
> > and to make it work since basically no regulators are registered
> > instead just some regmap_write()s are done to configure something
> > in probe(). It is a pitfall to think that the information below pmic@4b
> > is used, especially since it is not that obvious in the source.

Odd!  Not only did I not receive the original patch, I also did not
receive your response Andreas.  Spam is empty too.

LORE too: https://lore.kernel.org/all/?q=%22mfd:%20rohm-bd71828:%20Add%20power%20off%20functionality%22

-- 
Lee Jones [李琼斯]