From: Samuel Holland <samuel@sholland.org>
To: Wim Van Sebroeck <wim@linux-watchdog.org>,
Guenter Roeck <linux@roeck-us.net>,
Rob Herring <robh+dt@kernel.org>,
Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Icenowy Zheng <icenowy@aosc.io>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev, linux-watchdog@vger.kernel.org,
linux-kernel@vger.kernel.org,
Samuel Holland <samuel@sholland.org>
Subject: [PATCH v3 2/3] dt-bindings: watchdog: sunxi: Add compatibles for D1
Date: Thu, 2 Sep 2021 17:57:49 -0500 [thread overview]
Message-ID: <20210902225750.29313-3-samuel@sholland.org> (raw)
In-Reply-To: <20210902225750.29313-1-samuel@sholland.org>
D1 keeps the same register layout and clock sources as the R329, but it
adds a key field which must be set to update the watchdog's "CFG" and
"MODE" registers. Therefore it is not backward-compatible.
Similarly to the R329, the D1 has three watchdog instances, and only one
of them has the "soft reset" registers. So that instance needs an extra
compatible string.
Signed-off-by: Samuel Holland <samuel@sholland.org>
---
Changes v2 to v3:
- Add additional allwinner,sun20i-d1-wdt-reset compatible
Changes v1 to v2:
- None
.../bindings/watchdog/allwinner,sun4i-a10-wdt.yaml | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml b/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml
index 877f47759814..44cad9427ae6 100644
--- a/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml
@@ -30,6 +30,10 @@ properties:
- items:
- const: allwinner,suniv-f1c100s-wdt
- const: allwinner,sun4i-a10-wdt
+ - const: allwinner,sun20i-d1-wdt
+ - items:
+ - const: allwinner,sun20i-d1-wdt-reset
+ - const: allwinner,sun20i-d1-wdt
reg:
maxItems: 1
@@ -62,6 +66,8 @@ if:
compatible:
contains:
enum:
+ - allwinner,sun20i-d1-wdt
+ - allwinner,sun20i-d1-wdt-reset
- allwinner,sun50i-r329-wdt
- allwinner,sun50i-r329-wdt-reset
--
2.31.1
next prev parent reply other threads:[~2021-09-02 22:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-02 22:57 [PATCH v3 0/3] Allwinner R329 and D1 watchdog support Samuel Holland
2021-09-02 22:57 ` [PATCH v3 1/3] dt-bindings: watchdog: sunxi: Add compatibles for R329 Samuel Holland
2021-09-03 9:30 ` Maxime Ripard
2021-09-03 16:07 ` Rob Herring
2021-09-04 15:10 ` Guenter Roeck
2021-09-02 22:57 ` Samuel Holland [this message]
2021-09-03 9:30 ` [PATCH v3 2/3] dt-bindings: watchdog: sunxi: Add compatibles for D1 Maxime Ripard
2021-09-04 15:11 ` Guenter Roeck
2021-09-07 19:09 ` Rob Herring
2021-09-02 22:57 ` [PATCH v3 3/3] watchdog: sunxi_wdt: Add support " Samuel Holland
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