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From: dongxuyang@eswincomputing.com
To: ukleinek@kernel.org, robh@kernel.org, krzk+dt@kernel.org,
	conor+dt@kernel.org, ben-linux@fluff.org,
	ben.dooks@codethink.co.uk, linux-pwm@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	p.zabel@pengutronix.de, daniel.lezcano@kernel.org,
	tglx@kernel.org
Cc: ningyu@eswincomputing.com, linmin@eswincomputing.com,
	xuxiang@eswincomputing.com, wangguosheng@eswincomputing.com,
	pinkesh.vaghela@einfochips.com,
	Xuyang Dong <dongxuyang@eswincomputing.com>
Subject: [PATCH v12 4/4] dt-bindings: timer: dwc: Update resets property items
Date: Tue, 21 Jul 2026 20:09:35 +0800	[thread overview]
Message-ID: <20260721120935.1359-1-dongxuyang@eswincomputing.com> (raw)
In-Reply-To: <20260721120757.1134-1-dongxuyang@eswincomputing.com>

From: Xuyang Dong <dongxuyang@eswincomputing.com>

The DesignWare DW_apb_timers IP has two active-low reset inputs:
presetn resets the register interface logic in the pclk (bus) domain,
and timer_N_resetn resets the counter/timer logic in the timer_N_clk
domain. The existing snps,dw-apb-timer binding only describes one.

Update snps,dw-apb-timer binding to allow up to two reset lines,
matching the hardware capabilities of the DesignWare IP family.

Signed-off-by: Xuyang Dong <dongxuyang@eswincomputing.com>
---
 .../devicetree/bindings/timer/snps,dw-apb-timer.yaml         | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/timer/snps,dw-apb-timer.yaml b/Documentation/devicetree/bindings/timer/snps,dw-apb-timer.yaml
index d33c9205a909..4d30cd01ac65 100644
--- a/Documentation/devicetree/bindings/timer/snps,dw-apb-timer.yaml
+++ b/Documentation/devicetree/bindings/timer/snps,dw-apb-timer.yaml
@@ -25,7 +25,10 @@ properties:
     maxItems: 1
 
   resets:
-    maxItems: 1
+    minItems: 1
+    items:
+      - description: Timer ticks reference (timer_N_resetn) reset
+      - description: APB interface (presetn) reset
 
   clocks:
     minItems: 1
-- 
2.34.1


  parent reply	other threads:[~2026-07-21 12:09 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-21 12:07 [PATCH v12 0/4] Update designware pwm driver Xuyang Dong
2026-07-21 12:08 ` [PATCH v12 1/4] dt-bindings: pwm: dwc: Document optional resets property dongxuyang
2026-07-21 12:50   ` Philipp Zabel
2026-07-21 12:08 ` [PATCH v12 2/4] dt-bindings: pwm: dwc: Add eswin compatible dongxuyang
2026-07-21 12:52   ` Philipp Zabel
2026-07-21 12:09 ` [PATCH v12 3/4] pwm: dwc: add of/platform support dongxuyang
2026-07-21 13:10   ` Philipp Zabel
2026-07-21 12:09 ` dongxuyang [this message]
2026-07-21 12:21   ` [PATCH v12 4/4] dt-bindings: timer: dwc: Update resets property items sashiko-bot

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