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Tue, 15 Apr 2025 10:21:10 -0700 (PDT) From: Laurentiu Mihalcea To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Fabio Estevam , Daniel Baluta , Shengjiu Wang , Frank Li , Marco Felsch , Marc Kleine-Budde , Alexander Stein 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 v6 6/6] arm64: dts: imx8mp: make 'dsp' node depend on 'aips5' Date: Tue, 15 Apr 2025 13:19:19 -0400 Message-Id: <20250415171919.5623-7-laurentiumihalcea111@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250415171919.5623-1-laurentiumihalcea111@gmail.com> References: <20250415171919.5623-1-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: Frank Li --- 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 ebbc99f9ceba..d0d24fe92c3e 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -2425,6 +2425,11 @@ dsp: dsp@3b6e8000 { mboxes =3D <&mu2 2 0>, <&mu2 2 1>, <&mu2 3 0>, <&mu2 3 1>; memory-region =3D <&dsp_reserved>; + 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