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.

Reviewed-by: Alex Elder <elder@riscstar.com>
Signed-off-by: Guodong Xu <guodong@riscstar.com>
Reviewed-by: Yixun Lan <dlan@kernel.org>
Link: https://lore.kernel.org/spacemit/20260114092742-GYC7933267@gentoo.org/ [1]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

Author: docularxu

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

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

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.
+

drivers/reset/spacemit/Makefile

@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_RESET_SPACEMIT_K1)		+= reset-spacemit-k1.o