kernel/linux.git/drivers/clk/keystone, branch v4.17.1

clk: keystone: sci-clk: add support for dynamically probing clocks

2018-03-08T09:43:15+00:00

Currently, the driver contains a large hints table for clocks that exist on a device, however, it is possible to probe the clocks from the firmware also. Add support for this, and drop the clock hints table support from the driver completely. This causes the driver to send a few extra sci-clk messages during boot, basically one extra for each device that exists on the SoC; on K2G this is approx 80. Signed-off-by: Tero Kristo Acked-by: Santosh Shilimkar

clk: keystone: sci-clk: Fix sci_clk_get

2017-08-03T01:37:26+00:00

Currently a bug in the sci_clk_get implementation causes it to always return a clock belonging to the last device in the static list of clock data. This is due to a bug in the init code that causes the array used by sci_clk_get to only be populated with the clocks for the last device, as each device overwrites the entire array with its own clocks. Fix this by calculating the actual number of clocks for the SoC, and allocating the whole array in one go. Also, we don't need the handle to the init data array anymore after doing this, instead we can just compare the dev_id / clk_id against the registered clocks and use binary search for speed. Signed-off-by: Tero Kristo Reported-by: Dave Gerlach Fixes: b745c0794e2f ("clk: keystone: Add sci-clk driver support") Cc: Nishanth Menon Tested-by: Franklin Cooper Signed-off-by: Stephen Boyd

clk: keystone: TI_SCI_PROTOCOL is needed for clk driver

2017-06-23T00:39:25+00:00

CONFIG_COMPILE_TEST allows building a configuration without TI_SCI_PROTOCOL, which then fails to link: drivers/clk/keystone/sci-clk.o: In function `ti_sci_clk_probe': sci-clk.c:(.text.ti_sci_clk_probe+0x4c): undefined reference to `devm_ti_sci_get_handle' This makes it a hard dependency. Right now, that means we can't actually compile-test the driver unless ARCH_KEYSTONE is set as well, but we can fix that by allowing TI_MESSAGE_MANAGER to be selected for COMPILE_TEST as well. Fixes: b745c0794e2f ("clk: keystone: Add sci-clk driver support") Signed-off-by: Arnd Bergmann Acked-by: Tero Kristo Signed-off-by: Stephen Boyd

clk: keystone: Add sci-clk driver support

2017-06-14T16:05:07+00:00

In K2G, the clock handling is done through firmware executing on a separate core. Linux kernel needs to communicate to the firmware through TI system control interface to access any power management related resources, including clocks. The keystone sci-clk driver does this, by communicating to the firmware through the TI SCI driver. The driver adds support for registering clocks through DT, and basic required clock operations like prepare/get_rate, etc. Signed-off-by: Tero Kristo [sboyd@codeaurora.org: Make ti_sci_init_clocks() static] Signed-off-by: Stephen Boyd

clk: keystone: pll: Unmap region obtained by of_iomap

2016-12-09T00:34:15+00:00

Free memory mapping, if of_pll_div_clk_init is not successful. Signed-off-by: Arvind Yadav Signed-off-by: Stephen Boyd

clk: keystone: improve function-level documentation

2016-11-02T00:38:04+00:00

Adjust the documentation to use the actual function names. Issue detected using Coccinelle (http://coccinelle.lip6.fr/) Signed-off-by: Julia Lawall Signed-off-by: Stephen Boyd

clk: keystone: fix a trivial typo

2015-10-19T22:29:09+00:00

s/regsiter/register/ Signed-off-by: Geliang Tang Signed-off-by: Stephen Boyd

Merge branch 'cleanup-clk-h-includes' into clk-next

2015-07-28T18:59:09+00:00

* cleanup-clk-h-includes: (62 commits) clk: Remove clk.h from clk-provider.h clk: h8300: Remove clk.h and clkdev.h includes clk: at91: Include clk.h and slab.h clk: ti: Switch clk-provider.h include to clk.h clk: pistachio: Include clk.h clk: ingenic: Include clk.h clk: si570: Include clk.h clk: moxart: Include clk.h clk: cdce925: Include clk.h clk: Include clk.h in clk.c clk: zynq: Include clk.h clk: ti: Include clk.h clk: sunxi: Include clk.h and remove unused clkdev.h includes clk: st: Include clk.h clk: qcom: Include clk.h clk: highbank: Include clk.h clk: bcm: Include clk.h clk: versatile: Remove clk.h and clkdev.h includes clk: ux500: Remove clk.h and clkdev.h includes clk: tegra: Properly include clk.h ...

clk: keystone: make use of of_clk_parent_fill helper function

2015-07-28T18:59:01+00:00

Use of_clk_parent_fill to fill in the parent clock names' array. Signed-off-by: Dinh Nguyen Acked-by: Santosh Shilimkar Signed-off-by: Stephen Boyd

clk: keystone: Remove clk.h include

2015-07-20T17:53:08+00:00

Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Cc: Ivan Khoronzhuk Cc: Murali Karicheri Signed-off-by: Stephen Boyd