Re: [PATCH V5 5/6] arm64: dts: qcom: pm8008: Add base dts file

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On 2/10/2022 7:11 AM, Stephen Boyd wrote:
Quoting Satya Priya (2022-02-08 06:52:19)
Add base DTS file for pm8008 with infra and regulator nodes.

Signed-off-by: Satya Priya <quic_c_skakit@xxxxxxxxxxx>
---
Changes in V4:
  - This is newly added in V4, to add all the pm8008 common stuff.

Changes in V5:
  - Changed the mfd node names from pm8008_chip to pm8008_infra and
    pm8008_ldo to pm8008_regulators as they re more appropriate.
  - Changed the compatible for pm8008@9 mfd node to differentiate from
    pm8008@8 node in driver.
  - Removed compatible for regulators node.
  - Removed reg property for LDOs and added in driver.

  arch/arm64/boot/dts/qcom/pm8008.dtsi | 46 ++++++++++++++++++++++++++++++++++++
  1 file changed, 46 insertions(+)
  create mode 100644 arch/arm64/boot/dts/qcom/pm8008.dtsi

diff --git a/arch/arm64/boot/dts/qcom/pm8008.dtsi b/arch/arm64/boot/dts/qcom/pm8008.dtsi
new file mode 100644
index 0000000..8e04983
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/pm8008.dtsi
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: BSD-3-Clause
+// Copyright (c) 2021, The Linux Foundation. All rights reserved.
+
+pm8008_infra: pm8008@8 {
+       compatible = "qcom,pm8008";
+       reg = <0x8>;
+       #address-cells = <1>;
+       #size-cells = <0>;
+};
+
+pm8008_regulators: pm8008@9 {
+       compatible = "qcom,pm8008-regulators";
+       reg = <0x9>;
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       regulators {
What is the point of the 'regulators' node? Why can't we just put LDO1
directly underneath the node that has the "qcom,pm8008-regulators"
compatible?


It is not mandatory to have it but I think it makes the layout look a little better. And it seems to be commonly used upstream.


+               pm8008_l1: LDO1 {
+                       regulator-name = "pm8008_l1";
+               };
+



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