Re: [PATCH] arm64: dts: qcom: sm8450: Add TCSR halt register space

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Hi,

On 1/11/2023 3:30 PM, Krzysztof Kozlowski wrote:
On 11/01/2023 10:59, Krzysztof Kozlowski wrote:
On 11/01/2023 10:20, Mukesh Ojha wrote:
Add TCSR register space and refer it from scm node, so that
it can be used by SCM driver.

Signed-off-by: Mukesh Ojha <quic_mojha@xxxxxxxxxxx>
---
  arch/arm64/boot/dts/qcom/sm8450.dtsi | 6 ++++++
  1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index 5704750..e0fa733 100644
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -270,6 +270,7 @@
  	firmware {
  		scm: scm {
  			compatible = "qcom,scm-sm8450", "qcom,scm";
+			qcom,dload-mode = <&tcsr 0x13000>;
  			interconnects = <&aggre2_noc MASTER_CRYPTO 0 &mc_virt SLAVE_EBI1 0>;
  			#reset-cells = <1>;
  		};
@@ -1986,6 +1987,11 @@
  			#hwlock-cells = <1>;
  		};
+ tcsr: syscon@1fc0000 {
+			compatible = "syscon";

This is not allowed by itself.

Eh, that was not proper English... I wanted to say: This is not allowed
on its own. You need specific compatible. ALWAYS.

Sorry, it was my first DT patch, I did not run dtbs_check.
Thanks for correcting.

I think, i have missed adding qcom,tcsr-sm8450 in
Documentation/devicetree/bindings/mfd/qcom,tcsr.yaml
also need to add qcom,tcsr-sm8450 in above compatible.

-Mukesh

You should have warnings when running
dtbs_check.

Best regards,
Krzysztof


Best regards,
Krzysztof




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