Messages in this thread | | | From | Soren Brinkmann <> | Subject | [PATCH RFC] User space clock driver | Date | Fri, 10 May 2013 10:31:30 -0700 |
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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
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