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authorMaxime Ripard <maxime.ripard@bootlin.com>2019-03-19 15:37:59 +0100
committerMaxime Ripard <maxime.ripard@bootlin.com>2019-03-21 10:01:54 +0100
commit49c726d55c1ba3812eb293a71db09888669be2f5 (patch)
tree15d121bf6271bc55721213b55d831f6fe70bbe02 /drivers/clk/sunxi
parent6630aad719bc0a46dcc4a6732ab783c4c9b80f88 (diff)
clk: sunxi: Add Kconfig options
We used to have a clock framework that isn't really used these days, except for a few clocks and/or SoCs. Most of the time, the new framework and drivers (sunxi-ng) will provide everything needed for the customer devices to operate properly. Since we're not needing it that much, it might make sense to disable those drivers, for example when we want to reduce the kernel size. Let's add options in Kconfig that can be disabled if needed, but are still on by default to keep the same features in the standard case. Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Diffstat (limited to 'drivers/clk/sunxi')
-rw-r--r--drivers/clk/sunxi/Kconfig43
-rw-r--r--drivers/clk/sunxi/Makefile49
2 files changed, 70 insertions, 22 deletions
diff --git a/drivers/clk/sunxi/Kconfig b/drivers/clk/sunxi/Kconfig
new file mode 100644
index 000000000000..2b6207cc4eda
--- /dev/null
+++ b/drivers/clk/sunxi/Kconfig
@@ -0,0 +1,43 @@
+menuconfig CLK_SUNXI
+ bool "Legacy clock support for Allwinner SoCs"
+ depends on ARCH_SUNXI || COMPILE_TEST
+ default y
+
+if CLK_SUNXI
+
+config CLK_SUNXI_CLOCKS
+ bool "Legacy clock drivers"
+ default y
+ help
+ Legacy clock drivers being used on older (A10, A13, A20,
+ A23, A31, A80) SoCs. These drivers are kept around for
+ Device Tree backward compatibility issues, in case one would
+ still use a Device Tree with one clock provider by
+ node. Newer Device Trees and newer SoCs use the drivers
+ controlled by CONFIG_SUNXI_CCU.
+
+config CLK_SUNXI_PRCM_SUN6I
+ bool "Legacy A31 PRCM driver"
+ select MFD_SUN6I_PRCM
+ default y
+ help
+ Legacy clock driver for the A31 PRCM clocks. Those are
+ usually needed for the PMIC communication, mostly.
+
+config CLK_SUNXI_PRCM_SUN8I
+ bool "Legacy sun8i PRCM driver"
+ select MFD_SUN6I_PRCM
+ default y
+ help
+ Legacy clock driver for the sun8i family PRCM clocks.
+ Those are usually needed for the PMIC communication,
+ mostly.
+
+config CLK_SUNXI_PRCM_SUN9I
+ bool "Legacy A80 PRCM driver"
+ default y
+ help
+ Legacy clock driver for the A80 PRCM clocks. Those are
+ usually needed for the PMIC communication, mostly.
+
+endif
diff --git a/drivers/clk/sunxi/Makefile b/drivers/clk/sunxi/Makefile
index be88368b48a1..e10824c76ae9 100644
--- a/drivers/clk/sunxi/Makefile
+++ b/drivers/clk/sunxi/Makefile
@@ -3,27 +3,32 @@
# Makefile for sunxi specific clk
#
-obj-y += clk-sunxi.o clk-factors.o
-obj-y += clk-a10-codec.o
-obj-y += clk-a10-hosc.o
-obj-y += clk-a10-mod1.o
-obj-y += clk-a10-pll2.o
-obj-y += clk-a10-ve.o
-obj-y += clk-a20-gmac.o
-obj-y += clk-mod0.o
-obj-y += clk-simple-gates.o
-obj-y += clk-sun4i-display.o
-obj-y += clk-sun4i-pll3.o
-obj-y += clk-sun4i-tcon-ch1.o
-obj-y += clk-sun8i-bus-gates.o
-obj-y += clk-sun8i-mbus.o
-obj-y += clk-sun9i-core.o
-obj-y += clk-sun9i-mmc.o
-obj-y += clk-usb.o
+obj-$(CONFIG_CLK_SUNXI) += clk-factors.o
-obj-$(CONFIG_MACH_SUN9I) += clk-sun8i-apb0.o
-obj-$(CONFIG_MACH_SUN9I) += clk-sun9i-cpus.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-sunxi.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-a10-codec.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-a10-hosc.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-a10-mod1.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-a10-pll2.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-a10-ve.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-a20-gmac.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-mod0.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-simple-gates.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-sun4i-display.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-sun4i-pll3.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-sun4i-tcon-ch1.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-sun8i-bus-gates.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-sun8i-mbus.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-sun9i-core.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-sun9i-mmc.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-usb.o
-obj-$(CONFIG_MFD_SUN6I_PRCM) += \
- clk-sun6i-ar100.o clk-sun6i-apb0.o clk-sun6i-apb0-gates.o \
- clk-sun8i-apb0.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-sun8i-apb0.o
+obj-$(CONFIG_CLK_SUNXI_CLOCKS) += clk-sun9i-cpus.o
+
+obj-$(CONFIG_CLK_SUNXI_PRCM_SUN6I) += clk-sun6i-apb0.o
+obj-$(CONFIG_CLK_SUNXI_PRCM_SUN6I) += clk-sun6i-apb0-gates.o
+obj-$(CONFIG_CLK_SUNXI_PRCM_SUN6I) += clk-sun6i-ar100.o
+
+obj-$(CONFIG_CLK_SUNXI_PRCM_SUN8I) += clk-sun8i-apb0.o
+obj-$(CONFIG_CLK_SUNXI_PRCM_SUN8I) += clk-sun6i-apb0-gates.o