clk: meson: only build selected platforms

Break the AmLogic clock code up so that only the necessary parts are
compiled and linked. The core code is selected by both arm and arm64
builds with COMMON_CLK_AMLOGIC. The individual drivers have their own
config options as well.

Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>

diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 53ddba2..30feb6b 100644 (file)
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -208,6 +208,7 @@ config COMMON_CLK_OXNAS
 
 source "drivers/clk/bcm/Kconfig"
 source "drivers/clk/hisilicon/Kconfig"
+source "drivers/clk/meson/Kconfig"
 source "drivers/clk/mvebu/Kconfig"
 source "drivers/clk/qcom/Kconfig"
 source "drivers/clk/renesas/Kconfig"

diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index dcc5e69..af03eb2 100644 (file)
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -65,7 +65,7 @@ ifeq ($(CONFIG_COMMON_CLK), y)
 obj-$(CONFIG_ARCH_MMP)                 += mmp/
 endif
 obj-y                                  += mvebu/
-obj-$(CONFIG_ARCH_MESON)               += meson/
+obj-$(CONFIG_COMMON_CLK_AMLOGIC)       += meson/
 obj-$(CONFIG_ARCH_MXS)                 += mxs/
 obj-$(CONFIG_MACH_PISTACHIO)           += pistachio/
 obj-$(CONFIG_COMMON_CLK_NXP)           += nxp/

diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig
new file mode 100644 (file)
index 0000000..7bb19ad
--- /dev/null
+++ b/drivers/clk/meson/Kconfig
@@ -0,0 +1,12 @@
+config COMMON_CLK_AMLOGIC
+       bool
+       depends on OF
+       depends on ARCH_MESON || COMPILE_TEST
+
+config COMMON_CLK_MESON8B
+       bool
+       depends on COMMON_CLK_AMLOGIC
+       help
+         Support for the clock controller on AmLogic S805 devices, aka
+         meson8b. Say Y if you want peripherals and CPU frequency scaling to
+         work.

diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile
index 901b5d4..b3d60fe 100644 (file)
--- a/drivers/clk/meson/Makefile
+++ b/drivers/clk/meson/Makefile
@@ -2,5 +2,5 @@
 # Makefile for Meson specific clk
 #
 
-obj-y += clk-pll.o clk-cpu.o
-obj-y += meson8b-clkc.o
+obj-$(CONFIG_COMMON_CLK_AMLOGIC) += clk-pll.o clk-cpu.o
+obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b-clkc.o