linux-kernel - [PATCH v2 1/3] clk: spacemit: prepare common ccu header

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Message-Id: <20251226-06-k1-clk-common-v2-1-28b59418b4df@gentoo.org>
Date: Fri, 26 Dec 2025 14:55:25 +0800
From: Yixun Lan <dlan@...too.org>
To: Stephen Boyd <sboyd@...nel.org>, 
 Michael Turquette <mturquette@...libre.com>, 
 Philipp Zabel <p.zabel@...gutronix.de>
Cc: Alex Elder <elder@...cstar.com>, Guodong Xu <guodong@...cstar.com>, 
 Inochi Amaoto <inochiama@...il.com>, linux-kernel@...r.kernel.org, 
 linux-clk@...r.kernel.org, linux-riscv@...ts.infradead.org, 
 spacemit@...ts.linux.dev, Yixun Lan <dlan@...too.org>
Subject: [PATCH v2 1/3] clk: spacemit: prepare common ccu header

In order to prepare adding clock driver for new SoC, extract common
ccu header file, so it can be shared by all drivers.

Also introduce a reset name macro, so it can be both used in clock
and reset subsystem, explicitly to make them match each other.

Signed-off-by: Yixun Lan <dlan@...too.org>
---
 include/soc/spacemit/ccu.h       | 21 +++++++++++++++++++++
 include/soc/spacemit/k1-syscon.h | 13 +++----------
 2 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/include/soc/spacemit/ccu.h b/include/soc/spacemit/ccu.h
new file mode 100644
index 000000000000..84dcdecccc05
--- /dev/null
+++ b/include/soc/spacemit/ccu.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __SOC_SPACEMIT_CCU_H__
+#define __SOC_SPACEMIT_CCU_H__
+
+#include <linux/auxiliary_bus.h>
+#include <linux/regmap.h>
+
+/* Auxiliary device used to represent a CCU reset controller */
+struct spacemit_ccu_adev {
+	struct auxiliary_device adev;
+	struct regmap *regmap;
+};
+
+static inline struct spacemit_ccu_adev *
+to_spacemit_ccu_adev(struct auxiliary_device *adev)
+{
+	return container_of(adev, struct spacemit_ccu_adev, adev);
+}
+
+#endif /* __SOC_SPACEMIT_CCU_H__ */
diff --git a/include/soc/spacemit/k1-syscon.h b/include/soc/spacemit/k1-syscon.h
index 354751562c55..13efa7a30853 100644
--- a/include/soc/spacemit/k1-syscon.h
+++ b/include/soc/spacemit/k1-syscon.h
@@ -5,17 +5,10 @@
 #ifndef __SOC_K1_SYSCON_H__
 #define __SOC_K1_SYSCON_H__
 
-/* Auxiliary device used to represent a CCU reset controller */
-struct spacemit_ccu_adev {
-	struct auxiliary_device adev;
-	struct regmap *regmap;
-};
+#include "ccu.h"
 
-static inline struct spacemit_ccu_adev *
-to_spacemit_ccu_adev(struct auxiliary_device *adev)
-{
-	return container_of(adev, struct spacemit_ccu_adev, adev);
-}
+/* Reset name macro, should match in clock and reset */
+#define _K_RST(_unit)			"k1-" #_unit "-reset"
 
 /* APBS register offset */
 #define APBS_PLL1_SWCR1			0x100

-- 
2.52.0