linux-kernel - RE: [PATCH 3/8] ARM: OMAP: AM33xx hwmod: Add parent-child relationship for PWM subsystem

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Date:	Tue, 6 Nov 2012 13:06:21 +0000
From:	"Hiremath, Vaibhav" <hvaibhav@...com>
To:	"Bedia, Vaibhav" <vaibhav.bedia@...com>,
	"Philip, Avinash" <avinashphilip@...com>,
	"thierry.reding@...onic-design.de" <thierry.reding@...onic-design.de>,
	"paul@...an.com" <paul@...an.com>,
	"tony@...mide.com" <tony@...mide.com>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"Cousson, Benoit" <b-cousson@...com>
CC:	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>,
	"Nori, Sekhar" <nsekhar@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Hebbar, Gururaja" <gururaja.hebbar@...com>,
	"AnilKumar, Chimata" <anilkumar@...com>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: RE: [PATCH 3/8] ARM: OMAP: AM33xx hwmod: Add parent-child
 relationship for PWM subsystem

On Tue, Nov 06, 2012 at 15:39:11, Bedia, Vaibhav wrote:
> On Mon, Nov 05, 2012 at 14:42:24, Philip, Avinash wrote:
> [...]
> 
> > +
> > +static struct omap_hwmod_ocp_if am33xx_epwmss0__ecap0 = {
> > +	.master		= &am33xx_epwmss0_hwmod,
> > +	.slave		= &am33xx_ecap0_hwmod,
> > +	.clk		= "l4ls_gclk",
> > +	.addr		= am33xx_ecap0_addr_space,
> > +	.user		= OCP_USER_MPU,
> > +};
> 
> Noticed this in another patch which is quite similar so commenting here
> again. Is the user field required if you are just creating a parent-child
> relationship here?
> 

I think user field is not related to parent-child nodes, it defines the initiator to interact with hwmod

Copy-pasted from "arch/arm/plat-omap/include/plat/omap_hwmod.h"

"indicate the initiators that use this interface to interact with the 
hwmod"

And in this case, its MPU is the initiator to interact with this interface.


Thanks,
Vaibhav
> Regards,
> Vaibhav 
> 
> 

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