This patch set adds a DT binding documentation for new 'clock-parents' and 'clock-rates' DT properties and a helper function to parse them. The helper is now being called from within the driver core, similarly as it is done for the pins configuration binding to a device. Patch 1/2 adds a variant of of_clk_get() function which accepts name of a DT property containing list of phandle + clock specifier pairs, as opposed to hard coded "clocks" property name in of_clk_get(). As Mike suggested I've renamed this function to of_clk_get_by_property(). Patch 2/2 actually adds the code searching for related DT properties at device node and performing re-parenting and/or clock frequency setting as specified. Changes since v1: - updated DT binding documentation, - dropped the platform bus notifier, the clock setup routine is now being called directly from the driver core before a driver probe() call; this has an advantage such as all bus types are handled and any errors are propagated, so that, for instance a driver probe() can be deferred also when resources specified by clock-parents/clock-rates properties are not yet available; an alternative would be to let drivers call of_clk_device_setup() directly, - dropped the patch adding a macro definition for maximum DT property name length for now. Open issues: - handling of errors from of_clk_get_by_property() could be improved, currently ENOENT is returned by this function not only for a null entry. This series has been tested on ARM, on Exynos4412 Trats2 board. RFC v1 can be found at: http://www.spinics.net/lists/arm-kernel/msg309241.html Sylwester Nawrocki (2): clk: Add function parsing arbitrary clock list DT property clk: Add handling of clk parent and rate assigned from DT .../devicetree/bindings/clock/clock-bindings.txt | 23 ++++++ drivers/base/dd.c | 5 ++ drivers/clk/clk.c | 77 ++++++++++++++++++++ drivers/clk/clk.h | 3 + drivers/clk/clkdev.c | 25 ++++++- include/linux/clk-provider.h | 6 ++ 6 files changed, 135 insertions(+), 4 deletions(-) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
