The gpio-gate-clock / gpio-mux-clock driver isn't used much,
just by a few ARM SoCs, so there's no need to always include
it unconditionally.

Thus make it optional, but keep it enabled by default.

changes v3: default to y when gpiolib enabled
            fix depends on gpiolib to uppercase

changes v2: added missing dependency on gpiolib

Signed-off-by: Enrico Weigelt, metux IT consult <i...@metux.net>
---
 drivers/clk/Kconfig  | 8 ++++++++
 drivers/clk/Makefile | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index c715d4681a0b..e4fe406c4e7d 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -38,6 +38,14 @@ menuconfig COMMON_CLK
 
 if COMMON_CLK
 
+config COMMON_CLK_GPIO
+       tristate "GPIO gated clock support"
+       default y if GPIOLIB
+       depends on GPIOLIB
+       help
+         Supports gpio gated clocks, which can be enabled/disabled via
+         gpio output.
+
 config COMMON_CLK_WM831X
        tristate "Clock driver for WM831x/2x PMICs"
        depends on MFD_WM831X
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index da8fcf147eb1..0692ab5abc6d 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -11,7 +11,7 @@ obj-$(CONFIG_COMMON_CLK)      += clk-multiplier.o
 obj-$(CONFIG_COMMON_CLK)       += clk-mux.o
 obj-$(CONFIG_COMMON_CLK)       += clk-composite.o
 obj-$(CONFIG_COMMON_CLK)       += clk-fractional-divider.o
-obj-$(CONFIG_COMMON_CLK)       += clk-gpio.o
+obj-$(CONFIG_COMMON_CLK_GPIO)  += clk-gpio.o
 ifeq ($(CONFIG_OF), y)
 obj-$(CONFIG_COMMON_CLK)       += clk-conf.o
 endif
-- 
2.11.0

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