linux-kernel - Re: [PATCH v12 8/9] add TC G210 platform driver

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Date:	Thu, 7 Apr 2016 12:57:08 -0500
From:	Rob Herring <robh@...nel.org>
To:	Joao Pinto <Joao.Pinto@...opsys.com>
Cc:	tomas.winkler@...el.com, vinholikatti@...il.com,
	julian.calaby@...il.com, akinobu.mita@...il.com, hch@...radead.org,
	gbroner@...eaurora.org, subhashj@...eaurora.org,
	CARLOS.PALMINHA@...opsys.com, ijc+devicetree@...lion.org.uk,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	devicetree@...r.kernel.org, arnd@...db.de, mark.rutland@....com
Subject: Re: [PATCH v12 8/9] add TC G210 platform driver

On Mon, Apr 04, 2016 at 11:48:23AM +0100, Joao Pinto wrote:
> 
> Hi Rob,
> 
> On 4/4/2016 6:15 AM, Rob Herring wrote:
> > On Thu, Mar 31, 2016 at 07:57:21PM +0100, Joao Pinto wrote:
> >> This patch adds a glue platform driver for the Synopsys G210 Test Chip.
> >>
> >> Signed-off-by: Joao Pinto <jpinto@...opsys.com>
> >> ---
> 
> [snip]
> 
> >> +
> >> +Required properties:
> >> +- compatible	: compatible list must contain the PHY type & version:
> >> +			"snps, g210-tc-6.00-20bit"
> >> +			"snps, g210-tc-6.00-40bit"
> > Remove the space              ^
> > 
> >> +		  complemented with the Controller IP version:
> >> +			"snps, dwc-ufshcd-1.40a"
> > 
> > ditto
> 
> Ok, will do that!
> 
> > 
> > Combining the phy and controller compatible strings is a bit strange. 
> > Generally, they would be separate nodes using the common phy binding.
> > 
> 
> Correct, but in this case is just the compatibility string is just to tell the
> dw ufs host that it has a 40-bit or a 20-bit test chip connected. The Test chip
> is initialized by a unipro command sequence and there is no more ops related to it.

Okay. In that case, I think it should be a separate property unless the 
controller h/w is synthesized for one or the other.

Rob