[PATCH v11 1/2] arm64: dts: qcom: qcm6490-idp/qcs6490-rb3gen2: Keep wlan_ce_mem and drop redundant wifi memory-region

Mukesh Ojha <[email protected]> Mon, 3 Aug 2026 17:40:41 +0530
Newsgroups org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
The reserved region wlan_ce_mem is device memory used by the WCN6750
firmware. Deleting it in qcm6490-idp.dts and qcs6490-rb3gen2.dts is
erroneous — the region must remain present regardless of whether the
underlying OS uses it — so drop the /delete-node/ &wlan_ce_mem; from
both board files.

Also drop the per-board memory-region override from &wifi. Both
wlan_fw_mem and wlan_ce_mem are already assigned to the wifi node in
kodiak.dtsi, so the override is redundant.

Signed-off-by: Mukesh Ojha <[email protected]>
---
 arch/arm64/boot/dts/qcom/qcm6490-idp.dts     | 2 --
 arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 2 --
 2 files changed, 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
index bdc02260f902..6ab1bbdc0a62 100644
--- a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
+++ b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
@@ -25,7 +25,6 @@
 /delete-node/ &adsp_mem;
 /delete-node/ &cdsp_mem;
 /delete-node/ &video_mem;
-/delete-node/ &wlan_ce_mem;
 /delete-node/ &wpss_mem;
 /delete-node/ &xbl_mem;
 
@@ -1148,7 +1147,6 @@ &usb_1_qmpphy {
 };
 
 &wifi {
-	memory-region = <&wlan_fw_mem>;
 	qcom,calibration-variant = "Qualcomm_qcm6490idp";
 
 	status = "okay";
diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
index 90f2eebc349f..ba60fccbb63d 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -26,7 +26,6 @@
 /delete-node/ &adsp_mem;
 /delete-node/ &cdsp_mem;
 /delete-node/ &video_mem;
-/delete-node/ &wlan_ce_mem;
 /delete-node/ &wpss_mem;
 /delete-node/ &xbl_mem;
 
@@ -1464,7 +1463,6 @@ &venus {
 };
 
 &wifi {
-	memory-region = <&wlan_fw_mem>;
 	qcom,calibration-variant = "Qualcomm_rb3gen2";
 
 	status = "okay";
-- 
2.53.0