kernel/linux.git/include/linux/clk.h, branch linux-4.20.y

Merge branches 'clk-tegra' and 'clk-bulk-get-all' into clk-next

2018-10-18T22:43:38+00:00

- Nvidia Tegra clk driver MBIST workaround fix - clk_bulk_get_all() API and friends to get all the clks for a device * clk-tegra: clk: tegra210: Include size.h for compilation ease clk: tegra: Fixes for MBIST work around clk: tegra: probe deferral error reporting * clk-bulk-get-all: clk: add managed version of clk_bulk_get_all clk: add new APIs to operate on all available clocks clk: bulk: add of_clk_bulk_get()

clk: add managed version of clk_bulk_get_all

2018-10-16T22:42:49+00:00

This patch introduces the managed version of clk_bulk_get_all. Cc: Michael Turquette Cc: Stephen Boyd Tested-by: Thor Thayer Signed-off-by: Dong Aisheng Signed-off-by: Stephen Boyd

clk: add new APIs to operate on all available clocks

2018-10-16T22:42:48+00:00

This patch introduces of_clk_bulk_get_all and clk_bulk_x_all APIs to users who just want to handle all available clocks from device tree without need to know the detailed clock information likes clock numbers and names. This is useful in writing some generic drivers to handle clock part. Cc: Stephen Boyd Cc: Masahiro Yamada Tested-by: Thor Thayer Signed-off-by: Dong Aisheng Signed-off-by: Stephen Boyd

clk: Add functions to save/restore clock context en-masse

2018-10-03T12:29:04+00:00

Deep enough power saving mode can result into losing context of the clock registers also, and they need to be restored once coming back from the power saving mode. Hence add functions to save/restore clock context. Signed-off-by: Keerthy Signed-off-by: Russ Dill Acked-by: Tony Lindgren Signed-off-by: Tero Kristo

clk: add duty cycle support

2018-06-19T17:06:29+00:00

Add the possibility to apply and query the clock signal duty cycle ratio. This is useful when the duty cycle of the clock signal depends on some other parameters controlled by the clock framework. For example, the duty cycle of a divider may depends on the raw divider setting (ratio = N / div) , which is controlled by the CCF. In such case, going through the pwm framework to control the duty cycle ratio of this clock would be a burden. A clock provider is not required to implement the operation to set and get the duty cycle. If it does not implement .get_duty_cycle(), the ratio is assumed to be 50%. This change also adds a new flag, CLK_DUTY_CYCLE_PARENT. This flag should be used to indicate that a clock, such as gates and muxes, may inherit the duty cycle ratio of its parent clock. If a clock does not provide a get_duty_cycle() callback and has CLK_DUTY_CYCLE_PARENT, then the call will be directly forwarded to its parent clock, if any. For set_duty_cycle(), the clock should also have CLK_SET_RATE_PARENT for the call to be forwarded Signed-off-by: Jerome Brunet Signed-off-by: Michael Turquette Link: lkml.kernel.org/r/20180619144141.8506-1-jbrunet@baylibre.com

clk: add more __must_check for bulk APIs

2018-03-16T22:45:51+00:00

we need it even when !CONFIG_HAVE_CLK because it allows us to catch missing checking return values in the non-clk compile configurations too. More test coverage. Cc: Stephen Boyd Suggested-by: Stephen Boyd Signed-off-by: Dong Aisheng Signed-off-by: Stephen Boyd

clk: add clk_rate_exclusive api

2017-12-20T00:35:34+00:00

Using clock rate protection, we can now provide a way for clock consumer to claim exclusive control over the rate of a producer So far, rate change operations have been a "last write wins" affair. This changes allows drivers to explicitly protect against this behavior, if required. Of course, if exclusivity over a producer is claimed more than once, the rate is effectively locked as exclusivity cannot be preempted Tested-by: Maxime Ripard Acked-by: Michael Turquette Signed-off-by: Jerome Brunet Signed-off-by: Michael Turquette Link: lkml.kernel.org/r/20171201215200.23523-10-jbrunet@baylibre.com

Merge tag 'clk-bulk-get-prep-enable' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

2017-07-14T19:37:41+00:00

Pull clk api update from Stephen Boyd: "Small patch to add the clk_bulk_prepare_enable() and clk_bulk_disable_unprepare() API to the newly introduced clk bulk APIs. It would be good to get this into the -rc1 so that other driver trees can use it for code targeted for the next merge window" * tag 'clk-bulk-get-prep-enable' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: Provide bulk prepare_enable disable_unprepare variants

clk: Provide bulk prepare_enable disable_unprepare variants

2017-07-13T06:50:53+00:00

This extends the existing set of bulk helpers with prepare_enable and disable_unprepare variants. Cc: Russell King , Cc: Dong Aisheng Signed-off-by: Bjorn Andersson Signed-off-by: Stephen Boyd

Merge branch 'clk-bulk-get' into clk-next

2017-06-02T22:39:32+00:00

* clk-bulk-get: clk: add managed version of clk_bulk_get clk: add clk_bulk_get accessories