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path: root/drivers/clk/meson/Makefile
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* clk: meson: add g12a cpu dynamic divider driverNeil Armstrong2019-08-091-0/+1
| | | | | | | | | | | | | Add a clock driver for the cpu dynamic divider, this divider needs to have a flag set before setting the divider value then removed while writing the new value to the register. This drivers implements this behavior and will be used essentially on the Amlogic G12A and G12B SoCs for cpu clock trees. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
* clk: meson: remove clk input helperAlexandre Mergnat2019-07-291-1/+0
| | | | | | | | | The clk input function which allows clock controllers to register a bypass clock from a clock producer is no longer needed anymore since meson clock controllers have migrated to a new parent allocation method. Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
* treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner2019-05-211-0/+1
| | | | | | | | | | | | | | Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* clk: meson: Add G12A AO Clock + Reset ControllerNeil Armstrong2019-02-131-1/+1
| | | | | | | | | | | | | Add the Amlogic G12A AO Clock and Reset controller driver handling generation of Always-On clocks : - AO Clocks and Reset for Always-On modules - 32K Generation for USB and CEC - SAR ADC controller clock Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Acked-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lkml.kernel.org/r/20190212162859.20743-3-narmstrong@baylibre.com
* clk: meson: factorise meson64 peripheral clock controller driversJerome Brunet2019-02-041-0/+1
| | | | | | | | | | | The function used to probe the peripheral clock controller of the arm64 amlogic SoCs is mostly the same. We now have 3 of those controllers so it is time to factorize things a bit. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lkml.kernel.org/r/20190201145345.6795-5-jbrunet@baylibre.com
* clk: meson: g12a: add peripheral clock controllerJian Hu2019-02-041-0/+1
| | | | | | | | | | Add the peripheral clock controller found in the g12a SoC family Signed-off-by: Jian Hu <jian.hu@amlogic.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lkml.kernel.org/r/20190201145345.6795-4-jbrunet@baylibre.com
* clk: meson: rework and clean drivers dependenciesJerome Brunet2019-02-021-11/+16
| | | | | | | | | | | | | | | | | | | | | | | Initially, the meson clock directory only hosted 2 controllers drivers, for meson8 and gxbb. At the time, both used the same set of clock drivers so managing the dependencies was not a big concern. Since this ancient time, entropy did its job, controllers with different requirement and specific clock drivers have been added. Unfortunately, we did not do a great job at managing the dependencies between the controllers and the different clock drivers. Some drivers, such as clk-phase or vid-pll-div, are compiled even if they are useless on the target (meson8). As we are adding new controllers, we need to be able to pick a driver w/o pulling the whole thing. The patch aims to clean things up by: * providing a dedicated CONFIG_ for each clock drivers * allowing clock drivers to be compiled as a modules, if possible * stating explicitly which drivers are required by each controller. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lkml.kernel.org/r/20190201125841.26785-5-jbrunet@baylibre.com
* clk: meson: gxbb-ao: replace cec-32k with the dual dividerJerome Brunet2019-01-071-1/+1
| | | | | | | | | | | | Replace the cec-32k clock of gxbb-ao with the simpler dual divider driver. The dual divider implements only the dividing part. All the other bits are now exposed using simple elements, such as gates and muxes Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lkml.kernel.org/r/20181221160239.26265-5-jbrunet@baylibre.com
* clk: meson: add dual divider clock driverJerome Brunet2019-01-071-1/+1
| | | | | | | | | | Add the dual divider driver. This special divider make a weighted average between 2 dividers to reach fractional divider values. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lkml.kernel.org/r/20181221160239.26265-4-jbrunet@baylibre.com
* clk: meson: add clk-input helper functionJerome Brunet2018-12-051-0/+1
| | | | | | | | | | | | Add the clock input helper function. Several amlogic clock controllers will now be registering bypass clock input. Instead of copying this code in every of them, let's make an helper function for it Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> [narmstrong: fixed up to apply on Makefile and clkc.h] Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lkml.kernel.org/r/20181204165819.21541-2-jbrunet@baylibre.com
* clk: meson: Add vid_pll divider driverNeil Armstrong2018-11-231-1/+1
| | | | | | | | | | Add support the VID_PLL fully programmable divider used right after the HDMI PLL clock source. It is used to achieve complex fractional division with a programmble bitfield. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Jerome Brunet <jbrunet@baylibre.com> Link: http://lkml.kernel.org/r/1541516257-16157-2-git-send-email-narmstrong@baylibre.com
* clk: meson: remove unused clk-audio-divider driverJerome Brunet2018-07-091-2/+1
| | | | | | | clk-audio-divider is no longer used, we can remove it. Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
* clk: meson: axg: add the audio clock controller driverJerome Brunet2018-07-091-0/+1
| | | | | | | | | | | | | | The axg audio clock controller is the clock generation unit for the amlogic audio subsystem of A113 based SoCs. It may be clocked by 8 different plls provided by the primary clock controller and also by 10 slave bit clocks and 10 slave sample clocks which may be provided by external components, such as audio codecs, through the SoC pads. It contains several muxes, dividers and gates which are fed into the the different devices of the audio subsystem. Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
* clk: meson: add axg audio sclk divider driverJerome Brunet2018-07-091-1/+1
| | | | | | | | | | | | | | | Add a driver to control the clock divider found in the sample clock generator of the axg audio clock controller. The sclk divider accumulates specific features which make the generic divider unsuitable to control it: - zero based divider (div = val + 1), but zero value gates the clock, so minimum divider value is 2. - lrclk variant may adjust the duty cycle depending the divider value and the 'hi' value. Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
* clk: meson: add triple phase clock driverJerome Brunet2018-07-091-0/+1
| | | | | | | | | | | | | Add a driver to control the output of the sample clock generator found in the axg audio clock controller. The goal of this driver is to coherently control the phase provided to the different element using the sample clock generator. This simplify the usage of the sample clock generator a lot, without comprising the ability of the SoC. Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
* clk: meson: add clk-phase clock driverJerome Brunet2018-07-091-0/+1
| | | | | | | | Add a driver based meson clk-regmap to control clock phase on amlogic SoCs Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
* clk: meson-axg: Add AO Clock and Reset controller driverQiufang Dai2018-05-151-1/+1
| | | | | | | | | Adds a Clock and Reset controller driver for the Always-On part of the Amlogic Meson-AXG SoC. Signed-off-by: Qiufang Dai <qiufang.dai@amlogic.com> Signed-off-by: Yixun Lan <yixun.lan@amlogic.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
* clk: meson: aoclk: refactor common code into dedicated fileYixun Lan2018-05-151-0/+1
| | | | | | | | | | We try to refactor the common code into one dedicated file, while preparing to add new Meson-AXG aoclk driver, this would help us to better share the code by all aoclk drivers. Suggested-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Yixun Lan <yixun.lan@amlogic.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
* clk: meson: remove obsolete cpu_clkJerome Brunet2018-03-131-1/+1
| | | | | | | | | meson8b cpu_clk has been replaced by a set of divider and mux clocks. meson_cpu_clk is no longer used and can be removed Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
* clk: meson: switch gxbb ao_clk to clk_regmapJerome Brunet2018-03-131-1/+1
| | | | | | | | Drop the gxbb ao specific regmap based clock and use the meson clk_regmap based clock instead. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
* clk: meson: add regmap clocksJerome Brunet2018-03-131-0/+1
| | | | | | | | | | | | | | | | | Meson clock controllers need to move the classical iomem registers to regmap. This is triggered because the HHI controllers found on the GXBB and GXL host more than just clocks. To properly handle this, we would like to migrate HHI to syscon. Also GXBB AO clock controller already use regmap, AXG AO and Audio clock controllers will as well. The purpose of this change is to provide a common structure to these meson controllers (and possibly others) for regmap based clocks. This change provides the basic gate, mux and divider, based on the helpers provided by the related generic clocks Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
* clk: meson-axg: add clock controller driversQiufang Dai2017-12-141-0/+1
| | | | | | | | | Add clock controller drivers for Amlogic Meson-AXG SoC. Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Qiufang Dai <qiufang.dai@amlogic.com> Signed-off-by: Yixun Lan <yixun.lan@amlogic.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
* clk: meson: gxbb-aoclk: Add CEC 32k clockNeil Armstrong2017-08-041-1/+1
| | | | | | | The CEC 32K AO Clock is a dual divider with dual counter to provide a more precise 32768Hz clock for the CEC subsystem from the external xtal. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
* clk: meson: gxbb-aoclk: Switch to regmap for register accessNeil Armstrong2017-08-041-1/+1
| | | | | | | Switch the aoclk driver to use the new bindings and switch all the registers access to regmap only. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
* clk: meson: add audio clock divider supportJerome Brunet2017-04-071-1/+1
| | | | | | | | | | | | | | The audio divider needs a specific clock divider driver. With am mpll parent clock, which is able to provide a fairly precise rate, the generic divider tends to select low value of the divider. In such case the quality of the clock is very poor. For the same final rate, maximizing the audio clock divider value and selecting the corresponding mpll rate gives better results. This is what this driver aims to acheive. So far, so good. Cc: Hendrik v. Raven <hendrik@consetetur.de> Acked-by: Michael Turquette <mturquette@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
* clk: meson: Rename meson8b-clkc.c to reflect gxbb naming conventionAlexander Müller2016-09-011-1/+1
| | | | | | Signed-off-by: Alexander Müller <serveralex@gmail.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com> Link: lkml.kernel.org/r/1472319654-59048-2-git-send-email-serveralex@gmail.com
* clk: meson: Add GXBB AO Clock and Reset controller driverNeil Armstrong2016-08-191-1/+1
| | | | | | | | | | | Adds a Clock and Reset controller driver for the Always-On part of the Amlogic Meson GXBB SoC. It exports paired Clocks and Resets lines that will be used by peripherals in the Always-On subsystem. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: gxbb: add AmLogic GXBB clk controller driverMichael Turquette2016-06-221-0/+1
| | | | | | | | | | The gxbb clock controller is the primary clock generation unit for the AmLogic GXBB SoC. It is clocked by a fixed 24MHz xtal, contains several PLLs and the usual post-dividers, muxes, dividers and leaf gates that are fed into various IP blocks in the SoC. Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
* clk: meson: add mpll supportMichael Turquette2016-06-221-1/+1
| | | | | | | | | | | MPLLs are adjustable rate clocks derived from PLLs. On both Meson8b and GXBB they appear to be only derived from fixed_pll. Add support for these clock types so that they can be added to their respective drivers. Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
* clk: meson: only build selected platformsMichael Turquette2016-06-221-2/+2
| | | | | | | | | | Break the AmLogic clock code up so that only the necessary parts are compiled and linked. The core code is selected by both arm and arm64 builds with COMMON_CLK_AMLOGIC. The individual drivers have their own config options as well. Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
* clk: meson8b: clean up composite clocksMichael Turquette2016-06-221-1/+1
| | | | | | | | | | | | | Remove the composite clock registration function and helpers. Replace unnecessary configuration struct with static initialization of the desired clock type. To preserve git bisect this patch also flips the switch and starts using of_clk_add_hw_provider instead of the deprecated meson_clk_register_clks method. As a byproduct clk.c can be deleted. Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
* clk: meson8b: Add support for Meson8b clocksCarlo Caione2015-06-051-0/+1
| | | | | | | | This patch adds support for the basic clocks found on the Amlogic Meson8b SoCs. Signed-off-by: Carlo Caione <carlo@endlessm.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: meson: Add support for Meson clock controllerCarlo Caione2015-06-051-0/+5
This patchset adds the infrastructure for registering and managing the core clocks found on Amlogic MesonX SoCs. In particular: - PLLs - CPU clock - Fixed rate clocks, fixed factor clocks, ... Signed-off-by: Carlo Caione <carlo@endlessm.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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