From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

One of the BWMON instances on SM8750 requires that its MMIO space is
mapped specifically with the nE memory attribute.

Allow the nonposted-mmio property which instructs the OS to do so.

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
 Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml b/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
index 83bcf0575cd372926102e2764055c3576822c915..256de140c03dc50cb77bc38a6bbc2ff96b910207 100644
--- a/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
+++ b/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
@@ -76,6 +76,8 @@ properties:
     minItems: 1
     maxItems: 2
 
+  nonposted-mmio: true
+
 required:
   - compatible
   - interconnects

-- 
2.50.1

On Wed, Jul 16, 2025 at 02:25:46PM +0200, Konrad Dybcio wrote:
> From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> 
> One of the BWMON instances on SM8750 requires that its MMIO space is
> mapped specifically with the nE memory attribute.
> 
> Allow the nonposted-mmio property which instructs the OS to do so.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof