linux-kernel - Re: [PATCH 0/2] arm: dra7: Add i2c6 instance hwmod and dt entries

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Date:	Wed, 25 May 2016 11:09:50 -0500
From:	Nishanth Menon <nm@...com>
To:	Ravikumar Kattekola <rk@...com>, <paul@...an.com>,
	<tony@...mide.com>, <linux@...linux.org.uk>, <robh+dt@...nel.org>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<linux-omap@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
CC:	Felipe Balbi <balbi@...nel.org>
Subject: Re: [PATCH 0/2] arm: dra7: Add i2c6 instance hwmod and dt entries

On 05/25/2016 07:53 AM, Ravikumar Kattekola wrote:
> DRA72x devices have a sixth i2c ocntroller instance.
> Following patches add the required hwmod structure and
> device tree nodes.
> 
> Reference doc: DRA72x TRM [ SPRUHP2Q ]
> 
> Tested on :
> DRA72x Rev B EVM
> 
> Ravikumar Kattekola (2):
>   arm: dra7: Add hwmod entry for i2c6
>   dts: dra7: Add device tree node for i2c6
> 
>  arch/arm/boot/dts/dra7.dtsi               | 11 +++++++++++
>  arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 23 +++++++++++++++++++++++
>  2 files changed, 34 insertions(+)
> 
NAK. reasoning:
a) i2c6 is a custom IP integration with completely non-standard
dependencies with cross device dependencies for pretty much a specific
usecase -> usage is pretty much limited for generic support - the
decision is NOT to support this instance in Linux kernel - internal
discussion forwarded to developer.
b) the patches themselves are wrong -> it applies to DRA72x not
generic DRA7x platform
c) patches themselves are in the wrong format (wrong subject line etc).
d) patches don't handle the SoC internal device dependencies either ->
in short will not function in a generic solution for all variations of
platforms.

-- 
Regards,
Nishanth Menon