2024-06-12 09:25:01

by Krzysztof Kozlowski

[permalink] [raw]
Subject: [PATCH v2 1/3] arm64: dts: mediatek: mt8365: drop incorrect power-domain-cells

The top SCPSYS node is not a power domain provider. It's child
"power-controller" is instead.

Signed-off-by: Krzysztof Kozlowski <[email protected]>

---

Changes in v2:
1. Reverse patches.
---
arch/arm64/boot/dts/mediatek/mt8365.dtsi | 1 -
1 file changed, 1 deletion(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8365.dtsi b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
index 24581f7410aa..455c2ae3b30a 100644
--- a/arch/arm64/boot/dts/mediatek/mt8365.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
@@ -302,7 +302,6 @@ syscfg_pctl: syscfg-pctl@10005000 {
scpsys: syscon@10006000 {
compatible = "mediatek,mt8365-syscfg", "syscon", "simple-mfd";
reg = <0 0x10006000 0 0x1000>;
- #power-domain-cells = <1>;

/* System Power Manager */
spm: power-controller {
--
2.43.0



2024-06-12 09:25:09

by Krzysztof Kozlowski

[permalink] [raw]
Subject: [PATCH v2 2/3] arm64: dts: mediatek: mt8365: use a specific SCPSYS compatible

SoCs should use dedicated compatibles for each of their syscon nodes to
precisely describe the block. Using an incorrect compatible does not
allow to properly match/validate children of the syscon device. Replace
SYSCFG compatible, which does not have children, with a new dedicated
one for SCPSYS block.

Reviewed-by: Alexandre Mergnat <[email protected]>
Tested-by: Alexandre Mergnat <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>

---

Changes in v2:
1. Tags
---
arch/arm64/boot/dts/mediatek/mt8365.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8365.dtsi b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
index 455c2ae3b30a..eb449bfa8803 100644
--- a/arch/arm64/boot/dts/mediatek/mt8365.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
@@ -300,7 +300,7 @@ syscfg_pctl: syscfg-pctl@10005000 {
};

scpsys: syscon@10006000 {
- compatible = "mediatek,mt8365-syscfg", "syscon", "simple-mfd";
+ compatible = "mediatek,mt8365-scpsys", "syscon", "simple-mfd";
reg = <0 0x10006000 0 0x1000>;

/* System Power Manager */
--
2.43.0


2024-06-12 09:25:19

by Krzysztof Kozlowski

[permalink] [raw]
Subject: [PATCH v2 3/3] arm64: dts: mediatek: mt8173-elm: drop PMIC's syscon node

According to AngeloGioacchino Del Regno, the syscon node in PMIC is
neither needed nor used. It looks like a solution to expose some of the
registers of PMIC.

Drop it to solve also incorrect number of entries in the "reg" property
and fix dtbs_check warning:

mt8173-elm.dtb: syscon@c000: reg: [[0, 49152], [0, 264]] is too long

Link: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Krzysztof Kozlowski <[email protected]>

---

Changes in v2:
1. Drop the node as suggested.
---
arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 6 ------
1 file changed, 6 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
index 6d962d437e02..b4d85147b77b 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
@@ -1134,12 +1134,6 @@ mt6397_vibr_reg: ldo_vibr {
rtc: mt6397rtc {
compatible = "mediatek,mt6397-rtc";
};
-
- syscfg_pctl_pmic: syscon@c000 {
- compatible = "mediatek,mt6397-pctl-pmic-syscfg",
- "syscon";
- reg = <0 0x0000c000 0 0x0108>;
- };
};
};

--
2.43.0


Subject: Re: [PATCH v2 1/3] arm64: dts: mediatek: mt8365: drop incorrect power-domain-cells

On Wed, 12 Jun 2024 11:24:19 +0200, Krzysztof Kozlowski wrote:
> The top SCPSYS node is not a power domain provider. It's child
> "power-controller" is instead.
>
>

Applied to v6.10-next/dts64, thanks!

[1/3] arm64: dts: mediatek: mt8365: drop incorrect power-domain-cells
commit: 24d29b58184973d328c3a17d007bb21e423ea414
[2/3] arm64: dts: mediatek: mt8365: use a specific SCPSYS compatible
commit: 58adf8df342bbdd0e821750b103e7be6e5e2fd5f
[3/3] arm64: dts: mediatek: mt8173-elm: drop PMIC's syscon node
commit: e7450bc4f8f187b87522d992c3e226dadeac3ba6

Cheers,
Angelo