linux-kernel - Re: [RESEND PATCH v1 03/13] dt-bindings: mfd: ti,tps6594: Add TI TPS65224 PMIC

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Wed, 14 Feb 2024 15:01:06 +0530
From: Bhargav Raviprakash <bhargav.r@...s.com>
To: conor@...nel.org
Cc: arnd@...db.de,
	bhargav.r@...s.com,
	broonie@...nel.org,
	conor+dt@...nel.org,
	devicetree@...r.kernel.org,
	gregkh@...uxfoundation.org,
	jpanis@...libre.com,
	kristo@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	lee@...nel.org,
	lgirdwood@...il.com,
	linus.walleij@...aro.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	m.nirmaladevi@...s.com,
	nm@...com,
	robh+dt@...nel.org,
	vigneshr@...com
Subject: Re: [RESEND PATCH v1 03/13] dt-bindings: mfd: ti,tps6594: Add TI TPS65224 PMIC

Hi Conor,

On Fri 2/9/2024 10:41 PM, Conor Dooley wrote:
> On Thu, Feb 08, 2024 at 04:23:33PM +0530, Bhargav Raviprakash wrote:
> > TPS65224 is a Power Management IC with 4 Buck regulators and 3 LDO
> > regulators, it includes additional features like GPIOs, watchdog, ESMs
> > (Error Signal Monitor), and PFSM (Pre-configurable Finite State Machine)
> > managing the state of the device.
> 
> > TPS6594 and TPS65224 have significant functional overlap.
> 
> What does "significant functional overlap" mean? Does one implement a
> compatible subset of the other? I assume the answer is no, given there
> seems to be some core looking registers at different addresses.
> 
> Thanks,
> Conor.

The intention behind “significant functional overlap” was meant to
indicate a lot of the features between TPS6594 and TPS65224 overlap,
while there are some features specific to TPS65224.
There is compatibility between the PMIC register maps, I2C, PFSM,
and other drivers even though there are some core registers at
different addresses.

Would it be more appropriate to say the 2 devices are compatible and have
sufficient feature overlap rather than significant functional overlap?

Thank you for your review and feedback!                                     

Regards,
Bhargav