clk: add stub clock driver
Add a stub clock driver which can be used to bind clock controllers
which aren't required for the platform to boot, but which are needed for
U-Boot drivers to work.
In addition, add a NOP parent driver to allow for binding the parent
nodes of the clock.
Initially this driver supports a Qualcomm platform where the MMC driver
tries to fetch the RPM clock controller, which is not actually required
for the device to work.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 7f84f22..fe0e49f 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -11,6 +11,7 @@
obj-$(CONFIG_$(PHASE_)CLK_CCF) += clk-fixed-factor.o
obj-$(CONFIG_$(PHASE_)CLK_COMPOSITE_CCF) += clk-composite.o
obj-$(CONFIG_$(PHASE_)CLK_GPIO) += clk-gpio.o
+obj-$(CONFIG_$(PHASE_)CLK_STUB) += clk-stub.o
obj-y += adi/
obj-y += analogbits/