* [PATCH v2 1/5] dt-bindings: gpio: rockchip: Allow use of a power-domain
[not found] <20250723085654.2273324-1-jonas@kwiboo.se>
@ 2025-07-23 8:56 ` Jonas Karlman
2025-07-23 13:47 ` Rob Herring (Arm)
0 siblings, 1 reply; 2+ messages in thread
From: Jonas Karlman @ 2025-07-23 8:56 UTC (permalink / raw)
To: Heiko Stuebner, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Linus Walleij, Bartosz Golaszewski
Cc: Yao Zi, Chukun Pan, devicetree, linux-rockchip, linux-arm-kernel,
linux-kernel, Jonas Karlman, linux-gpio
The GPIO controllers in most Rockchip SoCs are part of power domains
that are always powered on, i.e. PD_BUS or PD_PMU. These always powered
on power domains have typically not been described in the device tree.
Because these power domains have been left out of the device tree there
has not been any real need to properly describe the GPIO controllers
power domain.
On RK3528 the GPIO controllers are spread out among the described
PD_RKVENC, PD_VO and PD_VPU power domains. However, one GPIO controller
belong to an undescribed always powered on power domain.
Add support to describe an optional power-domains for the GPIO
controllers in Rockchip SoCs.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
v2: Update commit message
---
Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml b/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
index d76987ce8e50..bdd83f42615c 100644
--- a/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
+++ b/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
@@ -41,6 +41,9 @@ properties:
"#interrupt-cells":
const: 2
+ power-domains:
+ maxItems: 1
+
patternProperties:
"^.+-hog(-[0-9]+)?$":
type: object
--
2.50.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2 1/5] dt-bindings: gpio: rockchip: Allow use of a power-domain
2025-07-23 8:56 ` [PATCH v2 1/5] dt-bindings: gpio: rockchip: Allow use of a power-domain Jonas Karlman
@ 2025-07-23 13:47 ` Rob Herring (Arm)
0 siblings, 0 replies; 2+ messages in thread
From: Rob Herring (Arm) @ 2025-07-23 13:47 UTC (permalink / raw)
To: Jonas Karlman
Cc: linux-arm-kernel, Krzysztof Kozlowski, Yao Zi, Chukun Pan,
Bartosz Golaszewski, Linus Walleij, linux-kernel, linux-rockchip,
linux-gpio, Heiko Stuebner, devicetree, Conor Dooley
On Wed, 23 Jul 2025 08:56:43 +0000, Jonas Karlman wrote:
> The GPIO controllers in most Rockchip SoCs are part of power domains
> that are always powered on, i.e. PD_BUS or PD_PMU. These always powered
> on power domains have typically not been described in the device tree.
>
> Because these power domains have been left out of the device tree there
> has not been any real need to properly describe the GPIO controllers
> power domain.
>
> On RK3528 the GPIO controllers are spread out among the described
> PD_RKVENC, PD_VO and PD_VPU power domains. However, one GPIO controller
> belong to an undescribed always powered on power domain.
>
> Add support to describe an optional power-domains for the GPIO
> controllers in Rockchip SoCs.
>
> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> ---
> v2: Update commit message
> ---
> Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml | 3 +++
> 1 file changed, 3 insertions(+)
>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2025-07-23 8:56 ` [PATCH v2 1/5] dt-bindings: gpio: rockchip: Allow use of a power-domain Jonas Karlman
2025-07-23 13:47 ` Rob Herring (Arm)
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