Re: [RESEND v6 8/8] arm64: dts: qcom: sc7280: Add qcom,adsp-pil-mode property in clock nodes

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On 6/16/2023 5:06 PM, Konrad Dybcio wrote:
On 16.06.2023 12:35, Mohammad Rafi Shaik wrote:
From: Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>

Add "qcom,adsp-pil-mode" property in clock nodes for herobrine
crd revision 3 board specific device tree.
This is to register clocks conditionally by differentiating ADSP
based platforms and legacy path platforms.
Also disable lpass_core clock, as it is creating conflict
with ADSP clocks and it is not required for ADSP based platforms.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@xxxxxxxxxxx>
---
  .../qcom/sc7280-herobrine-audioreach-wcd9385.dtsi    | 12 ++++++++++++
  1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine-audioreach-wcd9385.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine-audioreach-wcd9385.dtsi
index c02ca393378f..876a29178d46 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-herobrine-audioreach-wcd9385.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine-audioreach-wcd9385.dtsi
@@ -197,6 +197,14 @@ q6prmcc: clock-controller {
  	};
  };
+&lpass_aon {
+	qcom,adsp-pil-mode;
That's a whole bunch of hacky bindings that makes no sense..

What should have been done from the beginning is:

- all clocks should be registered inside the clock driver, unconditionally
   as far as .c code is concerned

- the regmap properties within should reflect the actual max register
   range within the hardware block

- device-tree should contain protected-clocks, which omits registering
   specified clks (I guess in the ADSP-less case you could probably even
   register all of them and it wouldn't hurt)

For AR solution, it is required to add "qcom,adsp-pil-mode" flag to enable ahbm and ahbs clocks. Please refer: https://elixir.bootlin.com/linux/v6.4-rc7/source/drivers/clk/qcom/lpassaudiocc-sc7280.c
+};
+
+&lpass_core {
+	status = "disabled";
status = "reserved";

Konrad
Okay, will change status flag.

Rafi
+};
+
  &lpass_rx_macro {
  	/delete-property/ power-domains;
  	/delete-property/ power-domain-names;
@@ -239,3 +247,7 @@ &lpass_va_macro {
status = "okay";
  };
+
+&lpasscc {
+	qcom,adsp-pil-mode;
+};



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