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Mon, 02 Nov 2026 18:07:47 -0800 (PST) Received: from localhost ([2a00:79e0:2e7c:8:c57d:c93d:3543:aab5]) by smtp.gmail.com with UTF8SMTPSA id a92af1059eb24-1b23b847348sm4090158c88.4.2026.11.02.18.07.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Nov 2026 18:07:46 -0800 (PST) Date: Mon, 2 Nov 2026 18:07:44 -0800 From: Brian Norris To: Krzysztof Kozlowski Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Stephen Boyd , Brian Masney , Jerome Brunet , Thomas Gleixner , Ulf Hansson , Philipp Zabel , Peter Griffin , devicetree@vger.kernel.org, Tudor Ambarus , =?iso-8859-1?Q?Andr=E9?= Draszik , linux-samsung-soc@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Radu Rendec , linux-arm-kernel@lists.infradead.org, Mariano Marciello , Douglas Anderson , linux-clk@vger.kernel.org, Jakub =?utf-8?B?R8WCb3dhY2tp?= Subject: Re: [PATCH 3/9] soc: google: Add CPM over MailBox Array driver Message-ID: References: <20261026214359.3122870-1-briannorris@chromium.org> <20261026144346.3.I7bc547c83b7bf677a62670099f481a91ac737073@changeid> <20261028-literate-pony-of-valor-3209fb@quoll> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261028-literate-pony-of-valor-3209fb@quoll> On Wed, Oct 28, 2026 at 02:27:05PM +0100, Krzysztof Kozlowski wrote: > On Mon, Oct 26, 2026 at 02:43:41PM -0700, Brian Norris wrote: > > --- /dev/null > > +++ b/drivers/soc/google/Kconfig > > @@ -0,0 +1,13 @@ > > +# SPDX-License-Identifier: GPL-2.0-only > > + > > +config GOOGLE_CPM_MBA > > + tristate "Google Tensor CPM MailBox Array Interface" > > + depends on ARCH_GOOGLE || COMPILE_TEST > > + depends on MAILBOX > > Can it be compile tested without mailbox? I don't think so. mbox_request_channel() and friends do not have stub implementations for the non-CONFIG_MAILBOX case. Brian