Traditionally, firmware loading for Serial Engines (SE) in the QUP hardware
of Qualcomm SoCs has been managed by TrustZone (TZ). While this approach
ensures secure SE assignment and access control, it limits flexibility for
developers who need to enable various protocols on different SEs.

Add the firmware-name property to QUPv3 nodes in the device tree to enable
firmware loading from the Linux environment. Handle SE assignments and
access control permissions directly within Linux, removing the dependency
on TrustZone.

Signed-off-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/lemans-evk.dts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
index c7dc9b8f4457..b21fa6bc36cf 100644
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
@@ -588,14 +588,17 @@ &pcie1_phy {
 };
 
 &qupv3_id_0 {
+	firmware-name = "qcom/sa8775p/qupv3fw.elf";
 	status = "okay";
 };
 
 &qupv3_id_1 {
+	firmware-name = "qcom/sa8775p/qupv3fw.elf";
 	status = "okay";
 };
 
 &qupv3_id_2 {
+	firmware-name = "qcom/sa8775p/qupv3fw.elf";
 	status = "okay";
 };
 
-- 
2.34.1

On Wed, 24 Sep 2025 09:24:09 +0530, Viken Dadhaniya wrote:
> Traditionally, firmware loading for Serial Engines (SE) in the QUP hardware
> of Qualcomm SoCs has been managed by TrustZone (TZ). While this approach
> ensures secure SE assignment and access control, it limits flexibility for
> developers who need to enable various protocols on different SEs.
> 
> Add the firmware-name property to QUPv3 nodes in the device tree to enable
> firmware loading from the Linux environment. Handle SE assignments and
> access control permissions directly within Linux, removing the dependency
> on TrustZone.
> 
> [...]

Applied, thanks!

[1/1] arm64: dts: qcom: lemans-evk: Add firmware-name to QUPv3 nodes
      commit: 3f9fa03b7eb1f1105ace0f5981f97607e0c35b59

Best regards,
-- 
Bjorn Andersson <andersson@kernel.org>

On 9/24/2025 9:24 AM, Viken Dadhaniya wrote:
> Traditionally, firmware loading for Serial Engines (SE) in the QUP hardware
> of Qualcomm SoCs has been managed by TrustZone (TZ). While this approach
> ensures secure SE assignment and access control, it limits flexibility for
> developers who need to enable various protocols on different SEs.
> 
> Add the firmware-name property to QUPv3 nodes in the device tree to enable
> firmware loading from the Linux environment. Handle SE assignments and
> access control permissions directly within Linux, removing the dependency
> on TrustZone.
> 
> Signed-off-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
> ---
>   arch/arm64/boot/dts/qcom/lemans-evk.dts | 3 +++
>   1 file changed, 3 insertions(+)

Acked-by: Mukesh Kumar Savaliya <mukesh.savaliya@oss.qualcomm.com>