[PATCH v3 0/1] clk: Clean up optional helpers, and add API docs to HTML

This cleans up the various optional helpers for clocks, and adds a new one. While we're at it, also convert the existing API docs to our HTML documentation.

The rest of this series has been applied, but the former patch 5 had an error, so I did not apply it. I have fixed it in this revision.

Changes in v3: - Fix clk_get_by_name_optional recursing

Changes in v2: - Rebased onto u-boot/master

Sean Anderson (1): clk: Add clk_get_by_name_optional

drivers/clk/clk_zynq.c | 5 +++-- drivers/rng/meson-rng.c | 4 ++-- include/clk.h | 24 ++++++++++++++++++++++++ 3 files changed, 29 insertions(+), 4 deletions(-)