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Thu, 21 Aug 2025 03:56:53 -0700 (PDT) From: Laurentiu Mihalcea To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Fabio Estevam , Catalin Marinas , Will Deacon Cc: Pengutronix Kernel Team , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/4] arm64: dts: imx8mp: make 'dsp' node depend on 'aips5' Date: Thu, 21 Aug 2025 13:56:34 +0300 Message-ID: <20250821105634.1893-5-laurentiumihalcea111@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250821105634.1893-1-laurentiumihalcea111@gmail.com> References: <20250821105634.1893-1-laurentiumihalcea111@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Laurentiu Mihalcea The DSP needs to access peripherals on AIPSTZ5 (to communicate with the AP using AUDIOMIX MU, for instance). To do so, the security-related registers of the bridge have to be configured before the DSP is started. Enforce a dependency on AIPSTZ5 by adding the 'access-controllers' property to the 'dsp' node. Signed-off-by: Laurentiu Mihalcea Reviewed-by: Daniel Baluta --- arch/arm64/boot/dts/freescale/imx8mp.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dt= s/freescale/imx8mp.dtsi index afcd8c785cfd..841d155685ee 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -2437,6 +2437,11 @@ dsp: dsp@3b6e8000 { firmware-name =3D "imx/dsp/hifi4.bin"; resets =3D <&audio_blk_ctrl IMX8MP_AUDIOMIX_DSP_RUNSTALL>; reset-names =3D "runstall"; + access-controllers =3D <&aips5 + IMX8MP_AIPSTZ_HIFI4 + IMX8MP_AIPSTZ_MASTER + (IMX8MP_AIPSTZ_MPL | IMX8MP_AIPSTZ_MTW | IMX8MP_AIPSTZ_MTR) + >; status =3D "disabled"; }; }; --=20 2.34.1