[PATCH 1/9] dt-bindings: mfd: stm32-timers: add support for stm32mp25

Fabrice Gasnier
2024-12-18T09:04:55Z

Add a new stm32mp25 compatible to stm32-timer dt-bindings in order to
support the STM32MP25 SoC. Some features has been added or updated in
the stm32-timer timer such as:
- hardware configuration and identification registers to read the timer
version and capabilities (counter width, number of channels...)
- dithering mode (can be used to extend PWM resolution)
- input triggers list
- new counter modes
- various bit-field updates
- power-domains property
Timer trigger identifier can be up to 19 (from timer 20)

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
---
.../bindings/mfd/st,stm32-timers.yaml | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml b/Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml
index b0e438ff4950..66aa1550a4e5 100644
--- a/Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml
+++ b/Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml
@@ -21,7 +21,9 @@ maintainers:

properties:
compatible:
- const: st,stm32-timers
+ enum:
+ - st,stm32-timers
+ - st,stm32mp25-timers

reg:
maxItems: 1
@@ -36,6 +38,9 @@ properties:
resets:
maxItems: 1

+ power-domains:
+ maxItems: 1
+
dmas:
minItems: 1
maxItems: 7
@@ -77,7 +82,9 @@ properties:

properties:
compatible:
- const: st,stm32-pwm
+ enum:
+ - st,stm32-pwm
+ - st,stm32mp25-pwm

"#pwm-cells":
const: 3
@@ -113,7 +120,9 @@ properties:

properties:
compatible:
- const: st,stm32-timer-counter
+ enum:
+ - st,stm32-timer-counter
+ - st,stm32mp25-timer-counter

required:
- compatible
@@ -128,12 +137,13 @@ patternProperties:
enum:
- st,stm32-timer-trigger
- st,stm32h7-timer-trigger
+ - st,stm32mp25-timer-trigger

reg:
description: Identify trigger hardware block.
items:
minimum: 0
- maximum: 16
+ maximum: 19

required:
- compatible
--
2.25.1