linux-kernel - [PATCH 2/4] reset: Create subdirectory for SpacemiT drivers

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Message-Id: <20251229-k3-reset-v1-2-eda0747bded3@riscstar.com>
Date: Mon, 29 Dec 2025 19:04:05 +0800
From: Guodong Xu <guodong@...cstar.com>
To: Philipp Zabel <p.zabel@...gutronix.de>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Yixun Lan <dlan@...too.org>
Cc: Alex Elder <elder@...cstar.com>, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org, 
 spacemit@...ts.linux.dev, Guodong Xu <guodong@...cstar.com>
Subject: [PATCH 2/4] reset: Create subdirectory for SpacemiT drivers

Create a dedicated subdirectory for SpacemiT reset drivers to allow
for better organization as support for more SoCs is added.

Move the existing K1 reset driver into this new directory and rename
it to reset-spacemit-k1.c.

Rename the Kconfig symbol to RESET_SPACEMIT_K1 and update its default
from ARCH_SPACEMIT to SPACEMIT_K1_CCU. The reset driver depends on the
clock driver to register reset devices as an auxiliary device, so the
default should reflect this dependency.

Also sort the drivers/reset/Kconfig entries alphabetically.

Signed-off-by: Guodong Xu <guodong@...cstar.com>
---
 drivers/reset/Kconfig                                      | 12 ++----------
 drivers/reset/Makefile                                     |  2 +-
 drivers/reset/spacemit/Kconfig                             | 14 ++++++++++++++
 drivers/reset/spacemit/Makefile                            |  3 +++
 .../{reset-spacemit.c => spacemit/reset-spacemit-k1.c}     |  0
 5 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
index 6e5d6deffa7d..b110f0fa7bb1 100644
--- a/drivers/reset/Kconfig
+++ b/drivers/reset/Kconfig
@@ -299,15 +299,6 @@ config RESET_SOCFPGA
 	  This enables the reset driver for the SoCFPGA ARMv7 platforms. This
 	  driver gets initialized early during platform init calls.
 
-config RESET_SPACEMIT
-	tristate "SpacemiT reset driver"
-	depends on ARCH_SPACEMIT || COMPILE_TEST
-	select AUXILIARY_BUS
-	default ARCH_SPACEMIT
-	help
-	  This enables the reset controller driver for SpacemiT SoCs,
-	  including the K1.
-
 config RESET_SUNPLUS
 	bool "Sunplus SoCs Reset Driver" if COMPILE_TEST
 	default ARCH_SUNPLUS
@@ -406,9 +397,10 @@ config RESET_ZYNQMP
 	  This enables the reset controller driver for Xilinx ZynqMP SoCs.
 
 source "drivers/reset/amlogic/Kconfig"
+source "drivers/reset/hisilicon/Kconfig"
+source "drivers/reset/spacemit/Kconfig"
 source "drivers/reset/starfive/Kconfig"
 source "drivers/reset/sti/Kconfig"
-source "drivers/reset/hisilicon/Kconfig"
 source "drivers/reset/tegra/Kconfig"
 
 endif
diff --git a/drivers/reset/Makefile b/drivers/reset/Makefile
index 9c3e484dfd81..fc0cc99f8514 100644
--- a/drivers/reset/Makefile
+++ b/drivers/reset/Makefile
@@ -2,6 +2,7 @@
 obj-y += core.o
 obj-y += amlogic/
 obj-y += hisilicon/
+obj-y += spacemit/
 obj-y += starfive/
 obj-y += sti/
 obj-y += tegra/
@@ -38,7 +39,6 @@ obj-$(CONFIG_RESET_RZV2H_USB2PHY) += reset-rzv2h-usb2phy.o
 obj-$(CONFIG_RESET_SCMI) += reset-scmi.o
 obj-$(CONFIG_RESET_SIMPLE) += reset-simple.o
 obj-$(CONFIG_RESET_SOCFPGA) += reset-socfpga.o
-obj-$(CONFIG_RESET_SPACEMIT) += reset-spacemit.o
 obj-$(CONFIG_RESET_SUNPLUS) += reset-sunplus.o
 obj-$(CONFIG_RESET_SUNXI) += reset-sunxi.o
 obj-$(CONFIG_RESET_TH1520) += reset-th1520.o
diff --git a/drivers/reset/spacemit/Kconfig b/drivers/reset/spacemit/Kconfig
new file mode 100644
index 000000000000..552884e8b72a
--- /dev/null
+++ b/drivers/reset/spacemit/Kconfig
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config RESET_SPACEMIT_K1
+	tristate "SpacemiT K1 reset driver"
+	depends on ARCH_SPACEMIT || COMPILE_TEST
+	depends on SPACEMIT_K1_CCU
+	select AUXILIARY_BUS
+	default SPACEMIT_K1_CCU
+	help
+	  Support for reset controller in SpacemiT K1 SoC.
+	  This driver works with the SpacemiT K1 clock controller
+	  unit (CCU) driver to provide reset control functionality
+	  for various peripherals and subsystems in the SoC.
+
diff --git a/drivers/reset/spacemit/Makefile b/drivers/reset/spacemit/Makefile
new file mode 100644
index 000000000000..de7e358c74fd
--- /dev/null
+++ b/drivers/reset/spacemit/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_RESET_SPACEMIT_K1)		+= reset-spacemit-k1.o
+
diff --git a/drivers/reset/reset-spacemit.c b/drivers/reset/spacemit/reset-spacemit-k1.c
similarity index 100%
rename from drivers/reset/reset-spacemit.c
rename to drivers/reset/spacemit/reset-spacemit-k1.c

-- 
2.43.0