From: Chen-Yu Tsai <wens@kernel.org>
To: Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej@kernel.org>,
Samuel Holland <samuel@sholland.org>
Cc: Andre Przywara <andre.przywara@arm.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
devicetree@vger.kernel.org, linux-sunxi@lists.linux.dev,
linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] dt-bindings: reset: sun55i-a523-r-ccu: Add missing PPU0 reset
Date: Fri, 20 Jun 2025 01:10:24 +0800 [thread overview]
Message-ID: <20250619171025.3359384-2-wens@kernel.org> (raw)
In-Reply-To: <20250619171025.3359384-1-wens@kernel.org>
From: Chen-Yu Tsai <wens@csie.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@csie.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
next prev parent reply other threads:[~2025-06-19 18:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-19 17:10 [PATCH 0/2] clk: sunxi-ng: sun55i-a523-r-ccu: Add missing PPU0 reset Chen-Yu Tsai
2025-06-19 17:10 ` Chen-Yu Tsai [this message]
2025-06-19 19:54 ` [PATCH 1/2] dt-bindings: reset: " Stephen Boyd
2025-06-20 1:28 ` Andre Przywara
2025-06-20 14:17 ` Conor Dooley
2025-06-19 17:10 ` [PATCH 2/2] clk: sunxi-ng: " Chen-Yu Tsai
2025-06-19 19:54 ` Stephen Boyd
2025-06-20 1:26 ` Andre Przywara
2025-06-25 13:38 ` [PATCH 0/2] " Chen-Yu Tsai
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