Hi,
is there any interest in exposing clock controls to userspace?
On Zynq we need/want this for a couple of clocks which are forwarded to
the FPGA part of the chip, in case no real device driver is taking care
of the clocks.
Additionally I can see this help debugging here and there. E.g. it can
be used to trigger rate change notifications. Hence I started this as a
generic driver instead of limiting it to my primary Zynq use-case.
The current state allows me to control the FPGA clocks on Zynq (other
clocks should work as well), so the functionality is basically there,
but I appreciate all feedback on the implementation. I suspect there
are better/other ways to do this.
Thanks,
Sören
Soren Brinkmann (1):
clk: Introduce userspace clock driver
.../devicetree/bindings/clock/clk-userspace.txt | 7 +
drivers/clk/Kconfig | 9 ++
drivers/clk/Makefile | 1 +
drivers/clk/clk-userspace.c | 169 +++++++++++++++++++++
4 files changed, 186 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/clk-userspace.txt
create mode 100644 drivers/clk/clk-userspace.c
--
1.8.2.3
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
