linux-kernel - [PATCH v2 02/14] arm64: dts: qcom: msm8916: Add QDSP6

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20231003-msm8916-modem-v2-2-61b684be55c0@gerhold.net>
Date:   Tue, 03 Oct 2023 15:18:20 +0200
From:   Stephan Gerhold <stephan@...hold.net>
To:     Bjorn Andersson <andersson@...nel.org>
Cc:     Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Stephan Gerhold <stephan@...hold.net>
Subject: [PATCH v2 02/14] arm64: dts: qcom: msm8916: Add QDSP6

MSM8916 does not have a dedicated ADSP. Instead, the audio services via
APR are also implemented by the modem DSP. Audio can be either routed
via the modem DSP (necessary for voice call audio etc) or directly sent
to the LPASS hardware (currently used by DB410c). Bypassing QDSP6 audio
is only possible with special firmware (on DB410c) or when the modem
DSP is completely disabled.

Add the typical nodes for QDSP6 audio to msm8916.dtsi. The apr node is
disabled by default to avoid changing behavior for devices like DB410c
that use the bypassed audio path.

Signed-off-by: Stephan Gerhold <stephan@...hold.net>
---
 arch/arm64/boot/dts/qcom/msm8916.dtsi | 49 +++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index 4f799b536a92..e8a14dd7e7c2 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -10,6 +10,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/power/qcom-rpmpd.h>
 #include <dt-bindings/reset/qcom,gcc-msm8916.h>
+#include <dt-bindings/soc/qcom,apr.h>
 #include <dt-bindings/thermal/thermal.h>
 
 / {
@@ -1989,6 +1990,54 @@ smd-edge {
 
 				label = "hexagon";
 
+				apr: apr {
+					compatible = "qcom,apr-v2";
+					qcom,smd-channels = "apr_audio_svc";
+					qcom,domain = <APR_DOMAIN_ADSP>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+					status = "disabled";
+
+					q6core: service@3 {
+						compatible = "qcom,q6core";
+						reg = <APR_SVC_ADSP_CORE>;
+					};
+
+					q6afe: service@4 {
+						compatible = "qcom,q6afe";
+						reg = <APR_SVC_AFE>;
+
+						q6afedai: dais {
+							compatible = "qcom,q6afe-dais";
+							#address-cells = <1>;
+							#size-cells = <0>;
+							#sound-dai-cells = <1>;
+						};
+					};
+
+					q6asm: service@7 {
+						compatible = "qcom,q6asm";
+						reg = <APR_SVC_ASM>;
+
+						q6asmdai: dais {
+							compatible = "qcom,q6asm-dais";
+							#address-cells = <1>;
+							#size-cells = <0>;
+							#sound-dai-cells = <1>;
+						};
+					};
+
+					q6adm: service@8 {
+						compatible = "qcom,q6adm";
+						reg = <APR_SVC_ADM>;
+
+						q6routing: routing {
+							compatible = "qcom,q6adm-routing";
+							#sound-dai-cells = <0>;
+						};
+					};
+				};
+
 				fastrpc {
 					compatible = "qcom,fastrpc";
 					qcom,smd-channels = "fastrpcsmd-apps-dsp";

-- 
2.42.0