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

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Message-ID: <20241218090153.742869-2-fabrice.gasnier@foss.st.com>
Date: Wed, 18 Dec 2024 10:01:45 +0100
From: Fabrice Gasnier <fabrice.gasnier@...s.st.com>
To: <lee@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <alexandre.torgue@...s.st.com>,
        <wbg@...nel.org>, <jic23@...nel.org>, <ukleinek@...nel.org>
CC: <catalin.marinas@....com>, <will@...nel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <linux-iio@...r.kernel.org>, <linux-pwm@...r.kernel.org>,
        <olivier.moysan@...s.st.com>
Subject: [PATCH 1/9] dt-bindings: mfd: stm32-timers: add support for stm32mp25

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@...s.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