linux-kernel - [PATCH] dt-bindings: timer: nuvoton: Clarify that interrupt of timer 0 should be specified

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Message-Id: <20210108122804.359258-1-j.neuschaefer@gmx.net>
Date:   Fri,  8 Jan 2021 13:28:03 +0100
From:   Jonathan Neuschäfer <j.neuschaefer@....net>
To:     devicetree@...r.kernel.org
Cc:     Jonathan Neuschäfer <j.neuschaefer@....net>,
        Avi Fishman <avifishman70@...il.com>,
        Tomer Maimon <tmaimon77@...il.com>,
        Tali Perry <tali.perry1@...il.com>,
        Patrick Venture <venture@...gle.com>,
        Nancy Yuen <yuenn@...gle.com>,
        Benjamin Fair <benjaminfair@...gle.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Rob Herring <robh+dt@...nel.org>, openbmc@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: timer: nuvoton: Clarify that interrupt of timer 0 should be specified

The NPCM750 Timer/Watchdoc Controller has multiple interrupt lines,
connected to multiple timers. The driver uses timer 0 for timer
interrupts, so the interrupt line corresponding to timer 0 should be
specified in DT.

I removed the mention of "flags for falling edge", because the timer
controller uses high-level interrupts rather than falling-edge
interrupts, and whether flags should be specified is up the interrupt
controller's DT binding.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@....net>
---
 .../devicetree/bindings/timer/nuvoton,npcm7xx-timer.txt        | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/timer/nuvoton,npcm7xx-timer.txt b/Documentation/devicetree/bindings/timer/nuvoton,npcm7xx-timer.txt
index ea22dfe485bee..97258f1a1505b 100644
--- a/Documentation/devicetree/bindings/timer/nuvoton,npcm7xx-timer.txt
+++ b/Documentation/devicetree/bindings/timer/nuvoton,npcm7xx-timer.txt
@@ -6,8 +6,7 @@ timer counters.
 Required properties:
 - compatible      : "nuvoton,npcm750-timer" for Poleg NPCM750.
 - reg             : Offset and length of the register set for the device.
-- interrupts      : Contain the timer interrupt with flags for
-                    falling edge.
+- interrupts      : Contain the timer interrupt of timer 0.
 - clocks          : phandle of timer reference clock (usually a 25 MHz clock).

 Example:
--
2.29.2