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Tue, 01 Apr 2025 08:45:59 -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 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 v4 6/6] arm64: dts: imx8mp: make 'dsp' node depend on 'aips5' Date: Tue, 1 Apr 2025 11:44:04 -0400 Message-Id: <20250401154404.45932-7-laurentiumihalcea111@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250401154404.45932-1-laurentiumihalcea111@gmail.com> References: <20250401154404.45932-1-laurentiumihalcea111@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250401_084601_245627_4A270C3B X-CRM114-Status: GOOD ( 12.96 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi index ebbc99f9ceba..f0f0ff5edea6 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -2425,6 +2425,7 @@ dsp: dsp@3b6e8000 { mboxes = <&mu2 2 0>, <&mu2 2 1>, <&mu2 3 0>, <&mu2 3 1>; memory-region = <&dsp_reserved>; + access-controllers = <&aips5 IMX8MP_AIPSTZ_HIFI4_T_RW_PL>; status = "disabled"; }; };