linux-kernel - [PATCH 1/2] dt-bindings: reset: sun55i-a523-r-ccu: Add missing PPU0 reset

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Message-Id: <20250619171025.3359384-2-wens@kernel.org>
Date: Fri, 20 Jun 2025 01:10:24 +0800
From: Chen-Yu Tsai <wens@...nel.org>
To: Stephen Boyd <sboyd@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Jernej Skrabec <jernej@...nel.org>,
	Samuel Holland <samuel@...lland.org>
Cc: Andre Przywara <andre.przywara@....com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	devicetree@...r.kernel.org,
	linux-sunxi@...ts.linux.dev,
	linux-clk@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] dt-bindings: reset: sun55i-a523-r-ccu: Add missing PPU0 reset

From: Chen-Yu Tsai <wens@...e.org>

There is a PPU0 reset control bit in the same register as the PPU1
reset control. This missing reset control is for the PCK-600 unit
in the SoC. Manual tests show that the reset control indeed exists,
and if not configured, the system will hang when the PCK-600 registers
are accessed.

Add a reset entry for it at the end of the existing ones.

Fixes: 52dbf84857f0 ("dt-bindings: clk: sunxi-ng: document two Allwinner A523 CCUs")
Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 include/dt-bindings/reset/sun55i-a523-r-ccu.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/dt-bindings/reset/sun55i-a523-r-ccu.h b/include/dt-bindings/reset/sun55i-a523-r-ccu.h
index dd6fbb372e19..eb31ae9958d6 100644
--- a/include/dt-bindings/reset/sun55i-a523-r-ccu.h
+++ b/include/dt-bindings/reset/sun55i-a523-r-ccu.h
@@ -21,5 +21,6 @@
 #define RST_BUS_R_IR_RX		12
 #define RST_BUS_R_RTC		13
 #define RST_BUS_R_CPUCFG	14
+#define RST_BUS_R_PPU0		15
 
 #endif /* _DT_BINDINGS_RST_SUN55I_A523_R_CCU_H_ */
-- 
2.39.5