Quite a few drivers get an optional clock, e.g. a bus clock required to access peripheral's registers that is always enabled on some devices.
v9: - Add a separate patch to add a comment about __of_clk_get_by_name() error values. - Add brackets after devm_clk_get so people know it's a function. - Add kernel doc for clk_get_optional(). Phil Edworthy (2): clk: Add comment about __of_clk_get_by_name() error values clk: Add (devm_)clk_get_optional() functions drivers/clk/clk-devres.c | 11 +++++++++++ drivers/clk/clkdev.c | 6 ++++++ include/linux/clk.h | 36 ++++++++++++++++++++++++++++++++++++ 3 files changed, 53 insertions(+) -- 2.17.1
