kernel/linux.git/drivers/clk/bcm, branch v6.19.11

Merge branch 'clk-determine-rate' into clk-next

2025-10-06T18:02:50+00:00

* clk-determine-rate: (120 commits) clk: microchip: core: remove duplicate roclk_determine_rate() clk: nxp: Fix pll0 rate check condition in LPC18xx CGU driver clk: scmi: migrate round_rate() to determine_rate() clk: ti: fapll: convert from round_rate() to determine_rate() clk: ti: dra7-atl: convert from round_rate() to determine_rate() clk: ti: divider: convert from round_rate() to determine_rate() clk: ti: composite: convert from round_rate() to determine_rate() clk: ti: dpll: convert from round_rate() to determine_rate() clk: ti: dpll: change error return from ~0 to -EINVAL clk: ti: dpll: remove round_rate() in favor of determine_rate() clk: tegra: tegra210-emc: convert from round_rate() to determine_rate() clk: tegra: super: convert from round_rate() to determine_rate() clk: tegra: pll: convert from round_rate() to determine_rate() clk: tegra: periph: divider: convert from round_rate() to determine_rate() clk: tegra: divider: convert from round_rate() to determine_rate() clk: tegra: audio-sync: convert from round_rate() to determine_rate() clk: fixed-factor: drop round_rate() clk ops clk: divider: remove round_rate() in favor of determine_rate() clk: visconti: pll: convert from round_rate() to determine_rate() clk: versatile: vexpress-osc: convert from round_rate() to determine_rate() ...

clk: bcm: rpi: Maximize V3D clock

2025-09-21T16:09:51+00:00

Although minimizing the clock rate is the best for most scenarios, as stated in commit 4d85abb0fb8e ("clk: bcm: rpi: Enable minimize for all firmware clocks"), when it comes to the GPU, it's ideal to have the maximum rate allowed. Add an option to maximize a firmware clock's rate when the clock is enabled and set this option for V3D. Signed-off-by: Maíra Canal Signed-off-by: Stephen Boyd

clk: bcm: rpi: Turn firmware clock on/off when preparing/unpreparing

2025-09-21T16:09:34+00:00

Currently, when we prepare or unprepare RPi's clocks, we don't actually enable/disable the firmware clock. This means that `clk_disable_unprepare()` doesn't actually change the clock state at all, nor does it lowers the clock rate. From the Mailbox Property Interface documentation [1], we can see that we should use `RPI_FIRMWARE_SET_CLOCK_STATE` to set the clock state off/on. Therefore, use `RPI_FIRMWARE_SET_CLOCK_STATE` to create a prepare and an unprepare hook for RPi's firmware clock. As now the clocks are actually turned off, some of them are now marked CLK_IS_CRITICAL, as those are required to be on during the whole system operation. Link: https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface [1] Signed-off-by: Maíra Canal Reviewed-by: Stefan Wahren Signed-off-by: Stephen Boyd

clk: bcm: rpi: Add missing logs if firmware fails

2025-09-21T16:09:21+00:00

In contrary to raspberrypi_fw_set_rate(), the ops for is_prepared() and recalc_rate() silently ignore firmware errors by just returning 0. Since these operations should never fail, add at least error logs to inform the user. Signed-off-by: Stefan Wahren Signed-off-by: Maíra Canal Signed-off-by: Stephen Boyd

clk: bcm: iproc-asiu: convert from round_rate() to determine_rate()

2025-09-08T13:41:30+00:00

clk: Fix typos

2025-07-27T06:49:18+00:00

Fix typos, mostly in comments except CLKGATE_SEPERATED_* (definition and uses updated). Signed-off-by: Bjorn Helgaas Link: https://lore.kernel.org/r/20250723203819.2910289-1-helgaas@kernel.org Signed-off-by: Stephen Boyd

clk: bcm: bcm2835: convert from round_rate() to determine_rate()

2025-07-24T21:32:14+00:00

The round_rate() clk ops is deprecated, so migrate this driver from round_rate() to determine_rate() using the Coccinelle semantic patch on the cover letter of this series. Signed-off-by: Brian Masney Link: https://lore.kernel.org/r/20250703-clk-cocci-drop-round-rate-v1-1-3a8da898367e@redhat.com Reviewed-by: Florian Fainelli Signed-off-by: Stephen Boyd

clk: bcm: rpi: Add NULL check in raspberrypi_clk_register()

2025-05-06T21:41:55+00:00

devm_kasprintf() returns NULL when memory allocation fails. Currently, raspberrypi_clk_register() does not check for this case, which results in a NULL pointer dereference. Add NULL check after devm_kasprintf() to prevent this issue. Fixes: 93d2725affd6 ("clk: bcm: rpi: Discover the firmware clocks") Signed-off-by: Henry Martin Reviewed-by: Dave Stevenson Link: https://lore.kernel.org/r/20250402020513.42628-1-bsdhenrymartin@gmail.com Reviewed-by: Stefan Wahren Signed-off-by: Stephen Boyd

clk: bcm: rpi: Drop module alias

2025-05-06T21:40:56+00:00

Since commit fbac2e7787ac ("clk: bcm: rpi: Allow the driver to be probed by DT") the module alias isn't necessary anymore. So we can drop it. Signed-off-by: Stefan Wahren Link: https://lore.kernel.org/r/20250415185614.16292-1-wahrenst@gmx.net Reviewed-by: Florian Fainelli Signed-off-by: Stephen Boyd

clk: bcm: kona: Remove unused scaled_div_build

2025-05-06T21:35:50+00:00

scaled_div_build() was added in 2014 by commit 1f27f15258bf ("clk: bcm281xx: add initial clock framework support") but hasn't been used. Remove it. Signed-off-by: Dr. David Alan Gilbert Link: https://lore.kernel.org/r/20250505013545.359745-1-linux@treblig.org Signed-off-by: Stephen Boyd