[PATCH 12/32] riscv: Automatically select sysctl config options

[Damien Le Moal]

With the device tree update for the Kendryte K210 SoC, most peripherals
are now defined under one of 3 advanced power buses (apb0, apb1 and
apb2) compatible with the simple-pm-bus driver. The sysctl SoC device
is defined as a syscon/simple-mfd device. Enable the configuration
options PM, SIMPLE_PM_BUS, SYSCON and MFD_SYSCON to enable drivers for
these device tree nodes.

Signed-off-by: Damien Le Moal <damien.lemoal at wdc.com>
---
 arch/riscv/Kconfig.socs       |  1 +
 drivers/soc/Kconfig           |  2 +-
 drivers/soc/kendryte/Kconfig  | 19 +++++++------------
 drivers/soc/kendryte/Makefile |  2 +-
 4 files changed, 10 insertions(+), 14 deletions(-)

diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs
index 8a55f6156661..e724fddc44ba 100644
--- a/arch/riscv/Kconfig.socs
+++ b/arch/riscv/Kconfig.socs
@@ -29,6 +29,7 @@ config SOC_KENDRYTE
 	select SERIAL_SIFIVE if TTY
 	select SERIAL_SIFIVE_CONSOLE if TTY
 	select SIFIVE_PLIC
+	select SOC_K210
 	help
 	  This enables support for Kendryte K210 SoC platform hardware.
 
diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig
index 425ab6f7e375..f511cad87a0e 100644
--- a/drivers/soc/Kconfig
+++ b/drivers/soc/Kconfig
@@ -9,6 +9,7 @@ source "drivers/soc/bcm/Kconfig"
 source "drivers/soc/fsl/Kconfig"
 source "drivers/soc/imx/Kconfig"
 source "drivers/soc/ixp4xx/Kconfig"
+source "drivers/soc/kendryte/Kconfig"
 source "drivers/soc/mediatek/Kconfig"
 source "drivers/soc/qcom/Kconfig"
 source "drivers/soc/renesas/Kconfig"
@@ -22,6 +23,5 @@ source "drivers/soc/ux500/Kconfig"
 source "drivers/soc/versatile/Kconfig"
 source "drivers/soc/xilinx/Kconfig"
 source "drivers/soc/zte/Kconfig"
-source "drivers/soc/kendryte/Kconfig"
 
 endmenu
diff --git a/drivers/soc/kendryte/Kconfig b/drivers/soc/kendryte/Kconfig
index 49785b1b0217..11579139ede6 100644
--- a/drivers/soc/kendryte/Kconfig
+++ b/drivers/soc/kendryte/Kconfig
@@ -1,14 +1,9 @@
 # SPDX-License-Identifier: GPL-2.0
 
-if SOC_KENDRYTE
-
-config K210_SYSCTL
-	bool "Kendryte K210 system controller"
-	default y
-	depends on RISCV
-	help
-	  Enables controlling the K210 various clocks and to enable
-	  general purpose use of the extra 2MB of SRAM normally
-	  reserved for the AI engine.
-
-endif
+config SOC_K210
+	bool "Kendryte K210 SoC drivers"
+	depends on RISCV && SOC_KENDRYTE && OF
+        select PM
+        select SIMPLE_PM_BUS
+        select SYSCON
+        select MFD_SYSCON
diff --git a/drivers/soc/kendryte/Makefile b/drivers/soc/kendryte/Makefile
index 002d9ce95c0d..e67425707484 100644
--- a/drivers/soc/kendryte/Makefile
+++ b/drivers/soc/kendryte/Makefile
@@ -1,3 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0
 
-obj-$(CONFIG_K210_SYSCTL)	+= k210-sysctl.o
+obj-$(CONFIG_SOC_K210)	+= k210-sysctl.o
-- 
2.28.0