Add a new stm32mp25 compatible to stm32-lptimer dt-bindings, to support
STM32MP25 SoC. Some features has been updated or added to the low-power
timer:
- new capture compare channels
- up to two PWM channels
- PWM input capture
- peripheral interconnect in stm32mp25 has been updated (new triggers).
- registers/bits has been added or revisited (IER access).
So introduce a new compatible to handle this diversity.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx>
---
Changes in V2:
- Use fallback compatibles, along with stm32mp25 specific compatible
- trigger identifier can be up to 4 (e.g. from LPTIM1..5)
---
.../bindings/mfd/st,stm32-lptimer.yaml | 40 ++++++++++++++++---
1 file changed, 34 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml b/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml
index d41308856408..ca251994cda2 100644
--- a/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml
+++ b/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml
@@ -21,7 +21,12 @@ maintainers:
properties:
compatible:
- const: st,stm32-lptimer
+ oneOf:
+ - items:
+ - const: st,stm32mp25-lptimer
+ - const: st,stm32-lptimer
+ - items:
+ - const: st,stm32-lptimer
reg:
maxItems: 1
@@ -48,13 +53,21 @@ properties:
minItems: 1
maxItems: 2
+ power-domains:
+ maxItems: 1
+
pwm:
type: object
additionalProperties: false
properties:
compatible:
- const: st,stm32-pwm-lp
+ oneOf:
+ - items:
+ - const: st,stm32mp25-pwm-lp
+ - const: st,stm32-pwm-lp
+ - items:
+ - const: st,stm32-pwm-lp
"#pwm-cells":
const: 3
@@ -69,7 +82,12 @@ properties:
properties:
compatible:
- const: st,stm32-lptimer-counter
+ oneOf:
+ - items:
+ - const: st,stm32mp25-lptimer-counter
+ - const: st,stm32-lptimer-counter
+ - items:
+ - const: st,stm32-lptimer-counter
required:
- compatible
@@ -80,7 +98,12 @@ properties:
properties:
compatible:
- const: st,stm32-lptimer-timer
+ oneOf:
+ - items:
+ - const: st,stm32mp25-lptimer-timer
+ - const: st,stm32-lptimer-timer
+ - items:
+ - const: st,stm32-lptimer-timer
required:
- compatible
@@ -92,13 +115,18 @@ patternProperties:
properties:
compatible:
- const: st,stm32-lptimer-trigger
+ oneOf:
+ - items:
+ - const: st,stm32mp25-lptimer-trigger
+ - const: st,stm32-lptimer-trigger
+ - items:
+ - const: st,stm32-lptimer-trigger
reg:
description: Identify trigger hardware block.
items:
minimum: 0
- maximum: 2
+ maximum: 4
required:
- compatible
--
2.25.1
