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Thu, 30 Oct 2025 05:10:57 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ThreadId: A1uT7sOefpDB Date: Thu, 30 Oct 2025 10:10:37 +0100 From: "Arnd Bergmann" To: "Chen-Yu Tsai" , "AngeloGioacchino Del Regno" Cc: "Mathieu Poirier" , linux-remoteproc@vger.kernel.org, "Bjorn Andersson" , "Matthias Brugger" , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, kernel@collabora.com Message-Id: In-Reply-To: References: <20251015084103.10737-1-angelogioacchino.delregno@collabora.com> <9f5a3dc5-d0f8-4172-a4b4-867919612a2d@collabora.com> Subject: Re: [PATCH v2] remoteproc: mtk_scp: Construct FW path if firmware-name not present Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On Thu, Oct 30, 2025, at 09:21, Chen-Yu Tsai wrote: > On Wed, Oct 29, 2025 at 7:05=E2=80=AFPM AngeloGioacchino Del Regno > wrote: >> >> > >> > I guess I can send a followup patch? >> >> The only followup patch that I deem to be necessary is one adding a s= ymlink >> or renaming for MT8188's SCP and nothing else. > > The firmware was uploaded in March of 2025, and is packaged in Debian > Trixie, and was also backported to Bookworm. Either adding a symlink or > renaming it won't trickle down to users for some time. So this seems > like a possible ABI break, where the ABI is the file name. > > Or maybe you don't consider it as such because SCP hasn't been enabled > in the kernel in any release yet? It's normally up to the kernel driver to know about the firmware file names and the order of trying the possible fallbacks, which is exactly why I originally asked to not rely on the property from dtb. If you want a symlink in linux-firmware, that would go the other way, pointing the old filename to the new location. Arnd