linux-kernel - [PATCH v10 4/6] clk: spacemit: define three reset-only CCUs

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Message-ID: <20250513215345.3631593-5-elder@riscstar.com>
Date: Tue, 13 May 2025 16:53:42 -0500
From: Alex Elder <elder@...cstar.com>
To: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	mturquette@...libre.com,
	sboyd@...nel.org,
	p.zabel@...gutronix.de,
	paul.walmsley@...ive.com,
	palmer@...belt.com,
	aou@...s.berkeley.edu,
	alex@...ti.fr,
	dlan@...too.org
Cc: heylenay@....org,
	inochiama@...look.com,
	guodong@...cstar.com,
	devicetree@...r.kernel.org,
	linux-clk@...r.kernel.org,
	spacemit@...ts.linux.dev,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v10 4/6] clk: spacemit: define three reset-only CCUs

Three CCUs on the SpacemiT K1 SoC implement only resets, not clocks.
Define the CCU data for these resets so their auxiliary devices get
created.

Signed-off-by: Alex Elder <elder@...cstar.com>
Reviewed-by: Yixun Lan <dlan@...too.org>
---
v10: New patch, same code (extracted clock parts of patch 5 in v9)

 drivers/clk/spacemit/ccu-k1.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/clk/spacemit/ccu-k1.c b/drivers/clk/spacemit/ccu-k1.c
index 1c9ed434ae93e..f9e2200d1fd04 100644
--- a/drivers/clk/spacemit/ccu-k1.c
+++ b/drivers/clk/spacemit/ccu-k1.c
@@ -943,6 +943,18 @@ static const struct spacemit_ccu_data k1_ccu_apmu_data = {
 	.num		= ARRAY_SIZE(k1_ccu_apmu_hws),
 };
 
+static const struct spacemit_ccu_data k1_ccu_rcpu_data = {
+	.reset_name	= "rcpu-reset",
+};
+
+static const struct spacemit_ccu_data k1_ccu_rcpu2_data = {
+	.reset_name	= "rcpu2-reset",
+};
+
+static const struct spacemit_ccu_data k1_ccu_apbc2_data = {
+	.reset_name	= "apbc2-reset",
+};
+
 static int spacemit_ccu_register(struct device *dev,
 				 struct regmap *regmap,
 				 struct regmap *lock_regmap,
@@ -1121,6 +1133,18 @@ static const struct of_device_id of_k1_ccu_match[] = {
 		.compatible	= "spacemit,k1-syscon-apmu",
 		.data		= &k1_ccu_apmu_data,
 	},
+	{
+		.compatible	= "spacemit,k1-syscon-rcpu",
+		.data		= &k1_ccu_rcpu_data,
+	},
+	{
+		.compatible	= "spacemit,k1-syscon-rcpu2",
+		.data		= &k1_ccu_rcpu2_data,
+	},
+	{
+		.compatible	= "spacemit,k1-syscon-apbc2",
+		.data		= &k1_ccu_apbc2_data,
+	},
 	{ }
 };
 MODULE_DEVICE_TABLE(of, of_k1_ccu_match);
-- 
2.45.2