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.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20240527-b4-clk-stub-v2-1-29013855e343@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
3 files changed