linux-kernel - Re: [PATCH] ARM: dts: omap3-gta04: Drop superfluous omap36xx compatible

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Date:   Sat, 7 Oct 2023 09:58:13 +0300
From:   Tony Lindgren <tony@...mide.com>
To:     "H. Nikolaus Schaller" <hns@...delico.com>
Cc:     Andreas Kemnade <andreas@...nade.info>, bcousson@...libre.com,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, linux-omap@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: omap3-gta04: Drop superfluous omap36xx
 compatible

* H. Nikolaus Schaller <hns@...delico.com> [231007 06:54]:
> Hi Tony,
> 
> > Am 07.10.2023 um 08:44 schrieb Tony Lindgren <tony@...mide.com>:
> > 
> > * H. Nikolaus Schaller <hns@...delico.com> [231004 12:50]:
> >> What about the PVR/SGX driver. This needs a compatible that can distinguish
> >> between the DM3725 and DM3730. The first is w/o SGX and the second one
> >> with. Having all summarized as omap3630 does not allow to load the
> >> PVR/SGX driver based on the board specific compatible entry.
> >> 
> >> AFAIR this was the original idea behind 
> >> 
> >> 	compatible = "goldelico,gta04", "ti,omap3630", "ti,omap36xx", "ti,omap3"; 
> > 
> > I think we already handle this, see drivers/bus/ti-sysc.c and search for
> > DIS_SGX and similar flags for other accelerators.
> 
> Ah, ok. This means that the kernel module isn't loaded if the flags of the chip
> are not available. Then we will indeed have no need to describe such variances
> in the DTS.
> 
> > So I think this patch is
> > safe to apply?
> 
> Looks so (especially as I only have omap3630 based devices with SGX).

OK applying into omap-for-v6.7/dt then.

Thanks,

Tony