This adds support for the NAND clocks found in the Meson8b SoC.
The clocks consist of a simple gate, a divider and a mux. The mux
parents are not documented in the public S805 datasheet [0], so I
had to use a bit of math and take the vendor kernel as reference [1]
to find the actual parent clocks.
Some mux parents cannot be divided down without remainder to the
target clocks (as expected by the vendor NAND driver) these clocks
have the ROUND_CLOSEST flag set.

This is based on the "clk-meson" branch (e65ae3fb97b4 "dt-bindings:
clock: gxbb-clkc: Add GXL compatible variant")


[0] http://dn.odroid.com/S805/Datasheet/S805_Datasheet%20V0.8%2020150126.pdf
[1] https://github.com/khadas/linux/blob/9587681285cb/drivers/amlogic/amlnf/dev/amlnf_ctrl.c#L314

Martin Blumenstingl (1):
  clk: meson: meson8b: add support for the NAND clocks

 drivers/clk/meson/meson8b.c | 53 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/clk/meson/meson8b.h |  6 ++++-
 2 files changed, 58 insertions(+), 1 deletion(-)

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2.12.1