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boundary="------------P50fraVSnvi5b9gI05nsMvT0"; protected-headers="v1" From: Matt Coster To: =?UTF-8?Q?Niklas_S=C3=B6derlund?= , Marek Vasut Cc: Geert Uytterhoeven , Conor Dooley , David Airlie , Frank Binns , Alessio Belle , Alexandru Dadu , Krzysztof Kozlowski , Maarten Lankhorst , Magnus Damm , Maxime Ripard , Rob Herring , Simona Vetter , Thomas Zimmermann , devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org Message-ID: Subject: Re: [PATCH 2/2] arm64: dts: renesas: r8a779a0: Add GE7800 GPU node References: <20251105232737.1933437-1-niklas.soderlund+renesas@ragnatech.se> <20251105232737.1933437-3-niklas.soderlund+renesas@ragnatech.se> In-Reply-To: <20251105232737.1933437-3-niklas.soderlund+renesas@ragnatech.se> --------------P50fraVSnvi5b9gI05nsMvT0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi Niklas, On 05/11/2025 23:27, Niklas S=C3=B6derlund wrote: > Describe Imagination Technologies PowerVR Rogue GE7800 BNVC 15.5.1.64 > present in Renesas R-Car R8A779A0 V3U SoC. >=20 > Signed-off-by: Niklas S=C3=B6derlund > --- > arch/arm64/boot/dts/renesas/r8a779a0.dtsi | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) >=20 > diff --git a/arch/arm64/boot/dts/renesas/r8a779a0.dtsi b/arch/arm64/boo= t/dts/renesas/r8a779a0.dtsi > index b08865841476..aa347b699340 100644 > --- a/arch/arm64/boot/dts/renesas/r8a779a0.dtsi > +++ b/arch/arm64/boot/dts/renesas/r8a779a0.dtsi > @@ -338,6 +338,23 @@ cmt3: timer@e6148000 { > status =3D "disabled"; > }; > =20 > + gsx: gsx@fd000000 { Why gsx? Marek's equivalent patch for r8a77965-gpu[1] used gpu (as we do for every dt so far). > + compatible =3D "renesas,r8a779a0-gpu", > + "img,img-ge7800", > + "img,img-rogue"; > + reg =3D <0 0xfd000000 0 0x40000>; > + interrupts =3D ; > + clocks =3D <&cpg CPG_CORE R8A779A0_CLK_ZG>, > + <&cpg CPG_CORE R8A779A0_CLK_S3D1>, > + <&cpg CPG_MOD 0>; I don't have access to a TRM for V3U (it's too new apparently, despite already being obsolete), but I believe the GPU integration should be similar to the M3N in [1]. In that case, the TRM (v2.40, fig 23.3) shows S2D1 and 112 in place of S3D1 and 0 =E2=80=93 are these definitely correc= t? The 0 especially feels wrong (see also 8A.2.1.2 MSTPSR1). > + clock-names =3D "core", "mem", "sys"; > + power-domains =3D <&sysc R8A779A0_PD_3DG_A>, > + <&sysc R8A779A0_PD_3DG_B>; > + power-domain-names =3D "a", "b"; > + resets =3D <&cpg 0>; Same 0 concern as above. Cheers, Matt [1]: https://lore.kernel.org/r/20251104135716.12497-3-marek.vasut+renesas= @mailbox.org/ > + status =3D "disabled"; > + }; > + > cpg: clock-controller@e6150000 { > compatible =3D "renesas,r8a779a0-cpg-mssr"; > reg =3D <0 0xe6150000 0 0x4000>; --=20 Matt Coster E: matt.coster@imgtec.com --------------P50fraVSnvi5b9gI05nsMvT0-- --------------GUuZRyuOwvnp67eVKc0Oa0ce Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature.asc" -----BEGIN PGP SIGNATURE----- wnsEABYIACMWIQS4qDmoJvwmKhjY+nN5vBnz2d5qsAUCaQx2IQUDAAAAAAAKCRB5vBnz2d5qsGfZ APwK3Uqzdox+uVIqS5xxaX0pBX9te6Xx1zYSHM6ncdDhYAEApYyL8JWJD/4WdoiNTU5A0g0NkJSG 8OWiMM/NE6DlHQ4= =8RGz -----END PGP SIGNATURE----- --------------GUuZRyuOwvnp67eVKc0Oa0ce--