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path: root/drivers/clk/clk-mux.c
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2025-03-24clk: clk-mux: Resolve parent clock by nameMarek Vasut
Use clock-names property which is accessible via parent clock OF node to look up the parent clock by name instead of depending on unreliable global clock name to perform look up. Signed-off-by: Marek Vasut <marex@denx.de>
2025-03-24clk: clk-mux: Use struct udevice instead of struct deviceMarek Vasut
Use U-Boot specific struct udevice instead of Linux compatibility struct device in clk-mux registration. Signed-off-by: Marek Vasut <marex@denx.de>
2025-03-24clk: clk-mux: Fold clk_register_mux()Marek Vasut
Neither clk_register_mux_table() nor clk_hw_register_mux_table() are called outside of clk-mux.c , fold both into clk_register_mux(). No functional change. Signed-off-by: Marek Vasut <marex@denx.de>
2024-07-06clk: clk-mux: Make public the clk_fetch_parent_indexMichael Trimarchi
Make public the clk_fetch_parent_index and rename it. This allow us to be reused in driver specialization Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
2024-05-20Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"Tom Rini
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-19Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""Tom Rini
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-07clk: Remove <common.h> and add needed includesTom Rini
Remove <common.h> from this driver directory and when needed add missing include files directly. Signed-off-by: Tom Rini <trini@konsulko.com>
2023-09-24common: Drop linux/printk.h from common headerSimon Glass
This old patch was marked as deferred. Bring it back to life, to continue towards the removal of common.h Move this out of the common header and include it only where needed. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-06-12global: Use proper project name U-BootMichal Simek
Use proper project name in comments, Kconfig, readmes. Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/0dbdf0432405c1c38ffca55703b6737a48219e79.1684307818.git.michal.simek@amd.com
2023-02-10Correct SPL uses of SANDBOX_CLK_CCFSimon Glass
This converts 12 usages of this option to the non-SPL form, since there is no SPL_SANDBOX_CLK_CCF defined in Kconfig Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-15clk: define LOG_CATEGORY for generic and ccf clocksPatrick Delaunay
Define LOG_CATEGORY to allow filtering with log command for generic clock and CCF clocks. This patch also change existing printf, debug and pr_ macro to log_ or dev_ macro. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Sean Anderson <seanga2@gmail.com>
2021-12-15clk: cosmetic: reorder include filesPatrick Delaunay
Reorder include files in the U-Boot expected order: the common.h header should always be first, followed by other headers in order, then headers with directories, then local files. It is a preliminary step for next patch. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Sean Anderson <seanga2@gmail.com>
2020-10-22clk: ccf: replace the get_rate helperDario Binacchi
The 12d152620d commit fixed the get_rate helper because the set_parent one did not re-parent the clock device to the new parent. The 4d139f3838 commit allows you to remove this workaround by calling the clk_get_parent_rate routine. Signed-off-by: Dario Binacchi <dariobin@libero.it>
2020-08-24clk: ccf: Add missing #include <dm/uclass.h> to clk-mux.cLukasz Majewski
After adding custom get_rate helper function it was necessary to include <dm/uclass.h> to avoid warnings about missing uclass_get_device_by_name. Signed-off-by: Lukasz Majewski <lukma@denx.de> Series-to: u-boot
2020-08-24clk: ccf: mux: change the get_rate helperDario Binacchi
The previous version of the get_rate helper does not work if the mux clock parent is changed after the probe. This error has not been detected because this condition has not been tested. The error occurs because the set_parent helper does not change the parent of the clock device but only the clock selection register. Since changing the parent of a probed device can be tricky, the new version of the get_rate helper provides the rate of the selected clock and not that of the parent. Signed-off-by: Dario Binacchi <dariobin@libero.it>
2020-08-24clk: ccf: mux: fix access to the sandbox registerDario Binacchi
The tests developed for the mux clock are run on the sandbox. They don't call the clk_mux_set_parent routine and therefore they do not detect this error. Signed-off-by: Dario Binacchi <dariobin@libero.it>
2020-08-24clk: ccf: mux: fix typoDario Binacchi
Close the opening bracket. Signed-off-by: Dario Binacchi <dariobin@libero.it>
2020-08-24clk: ccf: mux: change include orderDario Binacchi
Apply u-boot coding style on include files order. Signed-off-by: Dario Binacchi <dariobin@libero.it>
2020-08-24clk: set flags in the ccf registration routinesDario Binacchi
The top-level framework flags are passed as parameter to the common clock framework (ccf) registration routines without being used. Checks of the flags setting added by the patch have been added in the ccf test. Signed-off-by: Dario Binacchi <dariobin@libero.it>
2020-07-01clk: Always use the supplied struct clkSean Anderson
CCF clocks should always use the struct clock passed to their methods for extracting the driver-specific clock information struct. Previously, many functions would use the clk->dev->priv if the device was bound. This could cause problems with composite clocks. The individual clocks in a composite clock did not have the ->dev field filled in. This was fine, because the device-specific clock information would be used. However, since there was no ->dev, there was no way to get the parent clock. This caused the recalc_rate method of the CCF divider clock to fail. One option would be to use the clk->priv field to get the composite clock and from there get the appropriate parent device. However, this would tie the implementation to the composite clock. In general, different devices should not rely on the contents of ->priv from another device. The simple solution to this problem is to just always use the supplied struct clock. The composite clock now fills in the ->dev pointer of its child clocks. This allows child clocks to make calls like clk_get_parent() without issue. imx avoided the above problem by using a custom get_rate function with composite clocks. Signed-off-by: Sean Anderson <seanga2@gmail.com> Acked-by: Lukasz Majewski <lukma@denx.de>
2020-05-18common: Drop linux/bitops.h from common headerSimon Glass
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05dm: core: Require users of devres to include the headerSimon Glass
At present devres.h is included in all files that include dm.h but few make use of it. Also this pulls in linux/compat which adds several more headers. Drop the automatic inclusion and require files to include devres themselves. This provides a good indication of which files use devres. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de>
2019-07-31clk: mux: add set parent supportPeng Fan
Add set parent support for clk mux Signed-off-by: Peng Fan <peng.fan@nxp.com>
2019-07-31clk: use clk_dev_bindedPeng Fan
Preparing to support composite clk. Signed-off-by: Peng Fan <peng.fan@nxp.com>
2019-07-19clk: sandbox: Adjust clk-mux.c to emulate reading divider value from HWLukasz Majewski
The generic mux clock code for CCF requires reading the clock multiplexer value from HW registers. As sandbox by design has readl() as no-op it was necessary to provide this value in the other way. The new field in the mux structure (accessible only when sandbox is run) has been introduced for this purpose. Signed-off-by: Lukasz Majewski <lukma@denx.de>
2019-07-19clk: Port Linux common clock framework [CCF] for imx6q to U-boot (tag: v5.1.12)Lukasz Majewski
This patch brings the files from Linux kernel (linux-stable/linux-5.1.y SHA1: 5752b50477da)to provide clocks support as it is used on the Linux kernel with Common Clock Framework [CCF] setup. The directory structure has been preserved. The ported code only supports reading information from PLL, MUX, Divider, etc and enabling/disabling the clocks USDHCx/ECSPIx depending on used bus. Moreover, it is agnostic to the alias numbering as the information about the clock is read from the device tree. One needs to pay attention to the comments indicating necessary for U-Boot's driver model changes. If needed, the code can be extended to support the "set" part of the clock management. Signed-off-by: Lukasz Majewski <lukma@denx.de>