linux-kernel - Re: [PATCH 06/12] ARM: dts: am335x-bone-common: Enable PRU-ICSS interconnect node

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Message-ID: <20200226223921.GB37466@atomide.com>
Date:   Wed, 26 Feb 2020 14:39:21 -0800
From:   Tony Lindgren <tony@...mide.com>
To:     Suman Anna <s-anna@...com>
Cc:     Roger Quadros <rogerq@...com>, Tero Kristo <t-kristo@...com>,
        linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 06/12] ARM: dts: am335x-bone-common: Enable PRU-ICSS
 interconnect node

* Tony Lindgren <tony@...mide.com> [200226 22:38]:
> * Suman Anna <s-anna@...com> [200226 20:35]:
> > On 2/26/20 12:29 PM, Tony Lindgren wrote:
> > > * Suman Anna <s-anna@...com> [200225 20:47]:
> > >> The PRU-ICSS target module node was left in disabled state in the base
> > >> am33xx-l4.dtsi file. Enable this node on all the AM335x beaglebone
> > >> boards as they mostly use a AM3358 or a AM3359 SoC which do contain
> > >> the PRU-ICSS IP.
> > > 
> > > Just get rid of the top level status = "disabled". The default
> > > is enabled, and the device is there for sure inside the SoC.
> > > And then there's no need for pointless status = "okay" tinkering
> > > in the board specific dts files so no need for this patch.
> > 
> > The IP is not available on all SoCs, and there are about 40 different
> > board files atm across AM33xx and AM437x, and am not sure what SoCs they
> > are actually using.
> 
> Oh that issue again.. Maybe take a look at patch "[PATCH 2/3] bus: ti-sysc:
> Detect display subsystem related devices" if you can add runtime
> detection for the accelerators there similar to what I hadded for omap3.
> acclerators.

Sorry I meant instead patch "[PATCH 6/7] bus: ti-sysc: Implement SoC
revision handling".

Regards,

Tony