linux-kernel - [PATCH v3 2/3] arm64: dts: qcom: sc7280: Move video-firmware to chrome-common

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Date:   Fri, 01 Dec 2023 10:33:19 +0100
From:   Luca Weiss <luca.weiss@...rphone.com>
To:     Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
        Vikash Garodia <quic_vgarodia@...cinc.com>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        cros-qcom-dts-watchers@...omium.org,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Luca Weiss <luca.weiss@...rphone.com>
Subject: [PATCH v3 2/3] arm64: dts: qcom: sc7280: Move video-firmware to
 chrome-common

If the video-firmware node is present, the venus driver assumes we're on
a system that doesn't use TZ for starting venus, like on ChromeOS
devices.

Move the video-firmware node to chrome-common.dtsi so we can use venus
on a non-ChromeOS devices. We also need to move the secure SID 0x2184
for iommu since (on some boards) we cannot touch that.

At the same time also disable the venus node by default in the dtsi,
like it's done on other SoCs.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
---
 arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi | 11 +++++++++++
 arch/arm64/boot/dts/qcom/sc7280.dtsi               |  9 +++------
 2 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi b/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
index 5d462ae14ba1..459ff877df54 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
@@ -104,6 +104,17 @@ &scm {
 	dma-coherent;
 };
 
+&venus {
+	iommus = <&apps_smmu 0x2180 0x20>,
+		 <&apps_smmu 0x2184 0x20>;
+
+	status = "okay";
+
+	video-firmware {
+		iommus = <&apps_smmu 0x21a2 0x0>;
+	};
+};
+
 &watchdog {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 326897af117a..0ff9a2484096 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -3836,10 +3836,11 @@ venus: video-codec@...0000 {
 					<&mmss_noc MASTER_VIDEO_P0 0 &mc_virt SLAVE_EBI1 0>;
 			interconnect-names = "cpu-cfg", "video-mem";
 
-			iommus = <&apps_smmu 0x2180 0x20>,
-				 <&apps_smmu 0x2184 0x20>;
+			iommus = <&apps_smmu 0x2180 0x20>;
 			memory-region = <&video_mem>;
 
+			status = "disabled";
+
 			video-decoder {
 				compatible = "venus-decoder";
 			};
@@ -3848,10 +3849,6 @@ video-encoder {
 				compatible = "venus-encoder";
 			};
 
-			video-firmware {
-				iommus = <&apps_smmu 0x21a2 0x0>;
-			};
-
 			venus_opp_table: opp-table {
 				compatible = "operating-points-v2";
 

-- 
2.43.0