kernel/drivers/clk/ti/clock.h, branch linux-6.9.y

clk: ti: Improve clksel clock bit parsing for reg property

2024-02-26T11:08:45Z

Because of legacy reasons, the TI clksel composite clocks can have overlapping reg properties, and use a custom ti,bit-shift property. For the clksel clocks we can start using of the standard reg property instead of the custom ti,bit-shift property. To do this, let's add a ti_clk_get_legacy_bit_shift() helper, and make ti_clk_get_reg_addr() populate the clock bit offset. This makes it possible to update the devicetree files to use the reg property one clock at a time. Acked-by: Stephen Boyd Signed-off-by: Tony Lindgren

clk: ti: change ti_clk_register[_omap_hw]() API

2022-11-23T01:01:47Z

The ti_clk_register() and ti_clk_register_omap_hw() functions are always called with the parameter of type "struct device" set to NULL, since the functions from which they are called always have a parameter of type "struct device_node". Replacing "struct device" type parameter with "struct device_node" will allow you to register a TI clock to the common clock framework by taking advantage of the facilities provided by the "struct device_node" type. Further, adding the "of_" prefix to the name of these functions explicitly binds them to the "struct device_node" type. The patch has been tested on a Beaglebone board. Signed-off-by: Dario Binacchi Tested-by: Tony Lindgren Reviewed-by: Tony Lindgren Link: https://lore.kernel.org/r/20221113181147.1626585-1-dario.binacchi@amarulasolutions.com Signed-off-by: Stephen Boyd

treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_30.RULE (part 1)

2022-06-10T12:51:35Z

Based on the normalized pattern: this program is free software you can redistribute it and/or modify it under the terms of the gnu general public license as published by the free software foundation version 2 this program is distributed as is without any warranty of any kind whether express or implied without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference. Reviewed-by: Allison Randal Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

clk: ti: Drop legacy compatibility clocks for am4

2022-03-15T21:07:27Z

We no longer have users for the compatibility clocks and we can drop them. These are old duplicate clocks for what we using. Cc: devicetree@vger.kernel.org Cc: Rob Herring Signed-off-by: Tony Lindgren Link: https://lore.kernel.org/r/20220203085618.16043-3-tony@atomide.com Acked-by: Rob Herring Signed-off-by: Stephen Boyd

clk: ti: Add ti_dt_clk_name() helper to use clock-output-names

2022-03-11T02:55:59Z

Let's create the clock alias based on the clock-output-names property if available. Also the component clock drivers can use ti_dt_clk_name() in the following patches. Signed-off-by: Tony Lindgren Link: https://lore.kernel.org/r/20220204071449.16762-7-tony@atomide.com Signed-off-by: Stephen Boyd

clk: let init callback return an error code

2019-12-24T02:53:13Z

If the init callback is allowed to request resources, it needs a return value to report the outcome of such a request. Signed-off-by: Jerome Brunet Link: https://lkml.kernel.org/r/20190924123954.31561-3-jbrunet@baylibre.com Reviewed-by: Andrew Lunn Acked-by: Heiko Stuebner Signed-off-by: Stephen Boyd

clk: ti: divider: convert to use min,max,mask instead of width

2019-10-31T13:32:36Z

The existing width field used to check divider validity does not provide enough protection against bad values. For example, if max divider value is 4, the smallest all-1 bitmask that can hold this value is 7, which allows values higher than 4 to be used. This typically causes unpredictable results with hardware. So far this issue hasn't been noticed as most of the dividers actually have maximum values which fit the whole bitfield, but there are certain clocks for which this is a problem, like dpll4_m4 divider on omap3 devices. Thus, convert the whole validity logic to use min,max and mask values for determining if a specific divider is valid or not. This prevents the odd cases where bad value would otherwise be written to a divider config register. Signed-off-by: Tero Kristo Tested-by: Adam Ford

clk: ti: divider: cleanup ti_clk_parse_divider_data API

2019-10-31T13:32:34Z

Cleanup the ti_clk_parse_divider_data to pass the divider data struct directly instead of individual values of it. This makes it easier to modify the implementation later on. Signed-off-by: Tero Kristo Tested-by: Adam Ford

clk: ti: dra7: disable the RNG and TIMER12 clkctrl clocks on HS devices

2019-04-25T17:51:36Z

RNG and TIMER12 are reserved for secure side usage only on HS devices, so disable their clkctrl clocks on HS SoCs also. Signed-off-by: Tero Kristo Tested-by: Andrew F. Davis Signed-off-by: Stephen Boyd

clk: ti: dra7x: prevent non-existing clkctrl clocks from registering

2019-04-25T17:51:33Z

Certain clkctrl clocks (like the USB_OTG_SS4) do not exist on some variants of the dra7x SoC. Append a flag for these clocks and skip the registration in cases where the clocks do not exist. Reported-by: Peter Ujfalusi Signed-off-by: Tero Kristo Signed-off-by: Stephen Boyd