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Tue, 10 Jun 2025 09:02:32 -0700 (PDT) Received: from playground.localdomain ([82.79.237.69]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a53229e009sm13017806f8f.16.2025.06.10.09.02.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Jun 2025 09:02:31 -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 v7 6/6] arm64: dts: imx8mp: make 'dsp' node depend on 'aips5' Date: Tue, 10 Jun 2025 12:01:52 -0400 Message-Id: <20250610160152.1113930-7-laurentiumihalcea111@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250610160152.1113930-1-laurentiumihalcea111@gmail.com> References: <20250610160152.1113930-1-laurentiumihalcea111@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250610_090234_119581_5B88F94E X-CRM114-Status: GOOD ( 13.00 ) 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 --- 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/dts/freescale/imx8mp.dtsi index 9b550f225856..26efea15f6b0 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -2435,6 +2435,11 @@ dsp: dsp@3b6e8000 { firmware-name = "imx/dsp/hifi4.bin"; resets = <&audio_blk_ctrl IMX8MP_AUDIOMIX_DSP_RUNSTALL>; reset-names = "runstall"; + access-controllers = <&aips5 + IMX8MP_AIPSTZ_HIFI4 + IMX8MP_AIPSTZ_MASTER + (IMX8MP_AIPSTZ_MPL | IMX8MP_AIPSTZ_MTW | IMX8MP_AIPSTZ_MTR) + >; status = "disabled"; }; }; -- 2.34.1