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From: Andrew Jeffery To: Billy Tsai , Krzysztof Kozlowski Cc: Andrew Jeffery , Conor Dooley , Joel Stanley , Linus Walleij , Bartosz Golaszewski , Lee Jones , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, linux-gpio@vger.kernel.org, bmc-sw@aspeedtech.com Date: Wed, 11 Feb 2026 17:36:57 +1030 In-Reply-To: <459f84c56a5010910ecbf8b445c092674f060691.camel@codeconstruct.com.au> References: <20260120-upstream_pinctrl-v3-0-868fbf8413b5@aspeedtech.com> <20260120-upstream_pinctrl-v3-1-868fbf8413b5@aspeedtech.com> <459f84c56a5010910ecbf8b445c092674f060691.camel@codeconstruct.com.au> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2-0+deb13u1 X-Mailing-List: linux-aspeed@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 On Fri, 2026-01-23 at 17:03 +1030, Andrew Jeffery wrote: >=20 > Going down this path for pinctrl to fix the SCU situation will require > some rework of what's already merged for the AST2700. However, we've > not yet merged either a DTS or DTSI using the compatibles (and by > extension, aren't using the AST2700 support from the drivers), so I > hope that allows us to do a course-correction without too much > collateral damage. >=20 > A possible path forward is to: >=20 > =C2=A0* Move AST2700 definitions out of mfd/aspeed,ast2x00-scu.yaml into = one > =C2=A0=C2=A0 of: > =C2=A0=C2=A0=C2=A0 - soc/aspeed/aspeed,ast2700-scu.yaml: Follow the examp= le of > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 mobileye,eyeq5-olb? > =C2=A0=C2=A0=C2=A0 - arm/aspeed/aspeed,ast2700-scu.yaml: We already have = e.g. the secure > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 boot controller documented under arm/aspee= d > =C2=A0* Retain compatible strings but require simple-mfd is not specified > =C2=A0* Rework AST2700 support introduced in: > =C2=A0=C2=A0=C2=A0 - drivers/irqchip/irq-aspeed-scu-ic.c > =C2=A0=C2=A0=C2=A0 - drivers/soc/aspeed/aspeed-socinfo.c >=20 ... but perhaps that is too much churn for this stage. Krzysztof: If you think the rework is worthwhile, let me know and we can look at that design, otherwise I think Billy can proceed by incorporating your current feedback for a v4. Andrew