linux.git/drivers/clk/samsung, branch master Linux kernel source tree Merge branches 'clk-pile' and 'clk-microchip' into clk-next 2026-08-20T23:51:47+00:00 Stephen Boyd sboyd@kernel.org 2026-08-20T23:51:47+00:00 dd8eb789f18c4c600f28e61176a02bcf3b790117 * clk-pile: (111 commits) clk: microchip: mpfs: fix regmap_update_bits() mask/val order clk: visconti: Make sure clk_init_data is fully initialized clk: ti: Make sure clk_init_data is fully initialized MAINTAINERS: Add Brian Masney and Jerome Brunet as co-maintainers for clk subsystem Drop Michael Turquette's clk maintainer entry clk: ti: composite: resolve parent clocks by DT index, not by name clk: ti: mux: resolve parent clocks by DT index, not by name clk: devres: fix cleanup in devm_clk_get_optional_enabled_with_rate() dt-bindings: clock: ti,keystone-gate: Convert to DT schema dt-bindings: clock: ti: Convert APLL clock to DT schema clk: zynq: pll: Fix kernel-doc after determine_rate() conversion dt-bindings: clock: ti,clockdomain: Convert to DT schema dt-bindings: clock: Correct white-space style clk: tegra: set up proper EMC clock implementation for Tegra114 clk: clocking-wizard: remove 20kHz restriction clk: clocking-wizard: optimize clock search clk: clocking-wizard: fix clock difference detection clk: mediatek: mt8135: Fix inverted gate control for devapc_ck clk: clocking-wizard: Program PLL CP/RES and lock parameters on reconfig clk: tegra: support 48MHz clock for pll_p_out1 ... * clk-microchip: clk: at91: Read "reg" with helper 
* clk-pile: (111 commits)
  clk: microchip: mpfs: fix regmap_update_bits() mask/val order
  clk: visconti: Make sure clk_init_data is fully initialized
  clk: ti: Make sure clk_init_data is fully initialized
  MAINTAINERS: Add Brian Masney and Jerome Brunet as co-maintainers for clk subsystem
  Drop Michael Turquette's clk maintainer entry
  clk: ti: composite: resolve parent clocks by DT index, not by name
  clk: ti: mux: resolve parent clocks by DT index, not by name
  clk: devres: fix cleanup in devm_clk_get_optional_enabled_with_rate()
  dt-bindings: clock: ti,keystone-gate: Convert to DT schema
  dt-bindings: clock: ti: Convert APLL clock to DT schema
  clk: zynq: pll: Fix kernel-doc after determine_rate() conversion
  dt-bindings: clock: ti,clockdomain: Convert to DT schema
  dt-bindings: clock: Correct white-space style
  clk: tegra: set up proper EMC clock implementation for Tegra114
  clk: clocking-wizard: remove 20kHz restriction
  clk: clocking-wizard: optimize clock search
  clk: clocking-wizard: fix clock difference detection
  clk: mediatek: mt8135: Fix inverted gate control for devapc_ck
  clk: clocking-wizard: Program PLL CP/RES and lock parameters on reconfig
  clk: tegra: support 48MHz clock for pll_p_out1
  ...

* clk-microchip:
  clk: at91: Read "reg" with helper
Merge tag 'clk-misc-for-v7.3' of ssh://github.com/masneyb/linux into clk-pile 2026-08-17T16:27:10+00:00 Stephen Boyd sboyd@kernel.org 2026-08-14T00:17:13+00:00 804b10deb0e8872716416b38af0e4e60a038f0fd Pull clk patches picked up by Brian Masney: Here's various improvements and fixes for the clk subsystem that was posted prior to the opening of the last merge window. - Add spread spectrum clock (SSC) support to the clk framework, including a new assigned-clock-sscs devicetree property and clk_hw_set_spread_spectrum() API with KUnit tests (Peng Fan) - Add SCMI clock OEM extensions for the i.MX95 clock driver and introduce a common SCMI clock header (Peng Fan) - Add clock, reset, and devicetree bindings for the ESWIN EIC7700 HSP clock and reset generator (Xuyang Dong) - Add clk_determine_rate_noop() helper for clock drivers that can do any rate, and convert existing open-coded implementations across hisilicon, imx, qcom, renesas, rp1, samsung, scpi, sprd, mediatek phy, and mediatek pmdomain drivers (Brian Masney) - Add kernel-doc documentation for struct clk_core and the core clock flags, and wire up clk identifiers into the documentation build (Brian Masney) - Fix clk_divider_bestdiv() returning the minimum rate instead of the maximum rate for large rate requests, with KUnit tests (Lad Prabhakar) - Fix Nuvoton MA35D1 PLL frequency calculation including ignored div_u64 return values, incorrect PLL_CTL1_FRAC bit field width, and broken determine_rate logic (Joey Lu) - Support unique clock names for multi-socket Tegra platforms (Jon Hunter) - Allow COMPILE_TEST builds for HiSilicon clock drivers (Rosen Penev) - Various fixes and cleanups from Akari Tsuyukusa, Alexander A. Klimov, Brian Masney, David Carlier, David Laight, Min zhang, Myeonghun Pak, Pavel Löbl, Randy Dunlap, Rob Herring, Rosen Penev, Uwe Kleine-König, William Theesfeld, Xuyang Dong, and Yu-Chun Lin Signed-off-by: Brian Masney <bmasney@redhat.com> [sboyd@kernel.org: Fix allmodconfig modpost failure in scmi] * tag 'clk-misc-for-v7.3' of ssh://github.com/masneyb/linux: (53 commits) pmdomain: mediatek: mtk-mfg: use clk_determine_rate_noop() pmdomain: mediatek: airoha: use clk_determine_rate_noop() phy: mediatek: phy-mtk-hdmi-mt2701: use clk_determine_rate_noop() clk: sprd: use clk_determine_rate_noop() clk: scpi: use clk_determine_rate_noop() clk: samsung: acpm: use clk_determine_rate_noop() clk: rp1: use clk_determine_rate_noop() clk: renesas: rzg2l-cpg: use clk_determine_rate_noop() clk: qcom: smd-rpm: use clk_determine_rate_noop() clk: qcom: rpmh: use clk_determine_rate_noop() clk: qcom: rpm: use clk_determine_rate_noop() clk: imx: scu: use clk_determine_rate_noop() clk: hisilicon: hi3660-stub: use clk_determine_rate_noop() clk: add clk_determine_rate_noop() clk: imx: scu: drop redundant init.ops variable assignment clk: test: convert constants to use HZ_PER_MHZ docs: clk: include some identifiers to keep documentation up to date clk: add kernel docs for struct clk_core clk: add kernel docs for the core flags clk: hisilicon: allow COMPILE_TEST builds ... 
Pull clk patches picked up by Brian Masney:

Here's various improvements and fixes for the clk subsystem that was posted prior
to the opening of the last merge window.

- Add spread spectrum clock (SSC) support to the clk framework, including a new
  assigned-clock-sscs devicetree property and clk_hw_set_spread_spectrum()
  API with KUnit tests (Peng Fan)
- Add SCMI clock OEM extensions for the i.MX95 clock driver and introduce a
  common SCMI clock header (Peng Fan)
- Add clock, reset, and devicetree bindings for the ESWIN EIC7700 HSP clock and
  reset generator (Xuyang Dong)
- Add clk_determine_rate_noop() helper for clock drivers that can do any rate,
  and convert existing open-coded implementations across hisilicon, imx, qcom,
  renesas, rp1, samsung, scpi, sprd, mediatek phy, and mediatek pmdomain
  drivers (Brian Masney)
- Add kernel-doc documentation for struct clk_core and the core clock flags,
  and wire up clk identifiers into the documentation build (Brian Masney)
- Fix clk_divider_bestdiv() returning the minimum rate instead of the maximum
  rate for large rate requests, with KUnit tests (Lad Prabhakar)
- Fix Nuvoton MA35D1 PLL frequency calculation including ignored div_u64
  return values, incorrect PLL_CTL1_FRAC bit field width, and broken
  determine_rate logic (Joey Lu)
- Support unique clock names for multi-socket Tegra platforms (Jon Hunter)
- Allow COMPILE_TEST builds for HiSilicon clock drivers (Rosen Penev)
- Various fixes and cleanups from Akari Tsuyukusa, Alexander A. Klimov,
  Brian Masney, David Carlier, David Laight, Min zhang, Myeonghun Pak,
  Pavel Löbl, Randy Dunlap, Rob Herring, Rosen Penev, Uwe Kleine-König,
  William Theesfeld, Xuyang Dong, and Yu-Chun Lin

Signed-off-by: Brian Masney <bmasney@redhat.com>
[sboyd@kernel.org: Fix allmodconfig modpost failure in scmi]

* tag 'clk-misc-for-v7.3' of ssh://github.com/masneyb/linux: (53 commits)
  pmdomain: mediatek: mtk-mfg: use clk_determine_rate_noop()
  pmdomain: mediatek: airoha: use clk_determine_rate_noop()
  phy: mediatek: phy-mtk-hdmi-mt2701: use clk_determine_rate_noop()
  clk: sprd: use clk_determine_rate_noop()
  clk: scpi: use clk_determine_rate_noop()
  clk: samsung: acpm: use clk_determine_rate_noop()
  clk: rp1: use clk_determine_rate_noop()
  clk: renesas: rzg2l-cpg: use clk_determine_rate_noop()
  clk: qcom: smd-rpm: use clk_determine_rate_noop()
  clk: qcom: rpmh: use clk_determine_rate_noop()
  clk: qcom: rpm: use clk_determine_rate_noop()
  clk: imx: scu: use clk_determine_rate_noop()
  clk: hisilicon: hi3660-stub: use clk_determine_rate_noop()
  clk: add clk_determine_rate_noop()
  clk: imx: scu: drop redundant init.ops variable assignment
  clk: test: convert constants to use HZ_PER_MHZ
  docs: clk: include some identifiers to keep documentation up to date
  clk: add kernel docs for struct clk_core
  clk: add kernel docs for the core flags
  clk: hisilicon: allow COMPILE_TEST builds
  ...
clk: samsung: Don't include <linux/mod_devicetable.h> 2026-08-14T02:54:17+00:00 Uwe Kleine-König (The Capable Hub) u.kleine-koenig@baylibre.com 2026-08-06T13:00:50+00:00 53cb675d72064f9f97667fbc0a8775f24263362d All users of drivers/clk/samsung/clk.h live in drivers/clk/samsung (see git grep samsung/clk.h ). All these are only using of_device_id from the set of structures defined by this include (see { git grep -l clk\\.h drivers/clk/samsung/; echo drivers/clk/samsung/clk.h; } | xargs grep -oh -E "\<(acpi_device_id|amba_id|ap_device_id|apr_device_id|auxiliary_device_id|bcma_device_id|ccw_device_id|cdx_device_id|coreboot_device_id|css_device_id|dfl_device_id|dmi_(device|system)_id|eisa_device_id|fsl_mc_device_id|hda_device_id|hid_device_id|hv_vmbus_device_id|i2c_device_id|i3c_device_id|ieee1394_device_id|input_device_id|ipack_device_id|isapnp_device_id|ishtp_device_id|mcb_device_id|mdio_device_id|mei_cl_device_id|mhi_device_id|mips_cdmm_device_id|of_device_id|parisc_device_id|pci_device_id|pci_epf_device_id|pcmcia_device_id|platform_device_id|pnp_(card_)?device_id|rio_device_id|rpmsg_device_id|sdio_device_id|sdw_device_id|serio_device_id|slim_device_id|spi_device_id|spmi_device_id|ssam_device_id|ssb_device_id|tb_service_id|tee_client_device_id|typec_device_id|ulpi_device_id|usb_device_id|vchiq_device_id|vio_device_id|virtio_device_id|wmi_device_id|x86_(cpu|device)_id|zorro_device_id|cpu_feature)\>" | sort | uniq -c ). So <linux/mod_devicetable.h> can be replaced by <linux/device-id/of.h> to get rid of another user of the former header. Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com> Reviewed-by: Brian Masney <bmasney@redhat.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> 
All users of drivers/clk/samsung/clk.h live in drivers/clk/samsung (see

	git grep samsung/clk.h

). All these are only using of_device_id from
the set of structures defined by this include (see

	{ git grep -l clk\\.h drivers/clk/samsung/; echo drivers/clk/samsung/clk.h; } | xargs grep -oh -E "\<(acpi_device_id|amba_id|ap_device_id|apr_device_id|auxiliary_device_id|bcma_device_id|ccw_device_id|cdx_device_id|coreboot_device_id|css_device_id|dfl_device_id|dmi_(device|system)_id|eisa_device_id|fsl_mc_device_id|hda_device_id|hid_device_id|hv_vmbus_device_id|i2c_device_id|i3c_device_id|ieee1394_device_id|input_device_id|ipack_device_id|isapnp_device_id|ishtp_device_id|mcb_device_id|mdio_device_id|mei_cl_device_id|mhi_device_id|mips_cdmm_device_id|of_device_id|parisc_device_id|pci_device_id|pci_epf_device_id|pcmcia_device_id|platform_device_id|pnp_(card_)?device_id|rio_device_id|rpmsg_device_id|sdio_device_id|sdw_device_id|serio_device_id|slim_device_id|spi_device_id|spmi_device_id|ssam_device_id|ssb_device_id|tb_service_id|tee_client_device_id|typec_device_id|ulpi_device_id|usb_device_id|vchiq_device_id|vio_device_id|virtio_device_id|wmi_device_id|x86_(cpu|device)_id|zorro_device_id|cpu_feature)\>" | sort | uniq -c

).

So <linux/mod_devicetable.h> can be replaced by <linux/device-id/of.h>
to get rid of another user of the former header.

Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Merge tag 'samsung-clk-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into clk-samsung 2026-08-12T06:05:36+00:00 Stephen Boyd sboyd@kernel.org 2026-08-12T06:05:36+00:00 e38dc764049c7ab2d4eaab2412c04c460d5b87f5 Pull Samsung SoC clk driver updates from Krzysztof Kozlowski: - Exynos990: Add few missing clocks and correct the gate clock parents in the PERIS clock controller. - Cleanup - Use kzalloc_flex for __counted_by checks in Samsung clk driver. * tag 'samsung-clk-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: clk: samsung: pll: use kzalloc_flex clk: samsung: cpu: use kzalloc_flex clk: samsung: use kzalloc_flex clk: samsung: exynos990: Fix PERIS gate clock parents clk: samsung: exynos990: Add PERIS TMU_SUB_PCLK gate dt-bindings: clock: exynos990: Add CLK_GOUT_PERIS_TMU_SUB_PCLK 
Pull Samsung SoC clk driver updates from Krzysztof Kozlowski:

 - Exynos990: Add few missing clocks and correct the gate clock
   parents in the PERIS clock controller.
 - Cleanup - Use kzalloc_flex for __counted_by checks in Samsung
   clk driver.

* tag 'samsung-clk-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  clk: samsung: pll: use kzalloc_flex
  clk: samsung: cpu: use kzalloc_flex
  clk: samsung: use kzalloc_flex
  clk: samsung: exynos990: Fix PERIS gate clock parents
  clk: samsung: exynos990: Add PERIS TMU_SUB_PCLK gate
  dt-bindings: clock: exynos990: Add CLK_GOUT_PERIS_TMU_SUB_PCLK
clk: samsung: pll: use kzalloc_flex 2026-07-18T16:21:13+00:00 Rosen Penev rosenp@gmail.com 2026-06-29T03:25:40+00:00 6d32ae6403694035896cbf0436088fca4c6a35f1 Simplify allocation by using a flexible array member to combine allocations and remove a kfree. Use __counted_by for extra runtime analysis. Since rate_table is now a flexible array member, NULL checks don't work. So use the counting variable to check allocation. Signed-off-by: Rosen Penev <rosenp@gmail.com> Link: https://patch.msgid.link/20260629032540.2331559-4-rosenp@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> 
Simplify allocation by using a flexible array member to combine
allocations and remove a kfree.

Use __counted_by for extra runtime analysis.

Since rate_table is now a flexible array member, NULL checks don't work.
So use the counting variable to check allocation.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20260629032540.2331559-4-rosenp@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
clk: samsung: cpu: use kzalloc_flex 2026-07-18T16:21:13+00:00 Rosen Penev rosenp@gmail.com 2026-06-29T03:25:39+00:00 421ccea8f872c0e7cf6fd754a4a3bef4f45cf2dc Use a flexible array member to combine allocations. As kmemdup_array is really kcalloc + memcpy and kzalloc_flex kzalloc + kcalloc, kzalloc and kcalloc combine leaving the memcpy. Add __counted_by for extra runtime analysis. Remove fake const num_cfgs. It needs to be assigned for __counted_by to work. Signed-off-by: Rosen Penev <rosenp@gmail.com> Link: https://patch.msgid.link/20260629032540.2331559-3-rosenp@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> 
Use a flexible array member to combine allocations.

As kmemdup_array is really kcalloc + memcpy and kzalloc_flex kzalloc +
kcalloc, kzalloc and kcalloc combine leaving the memcpy.

Add __counted_by for extra runtime analysis. Remove fake const num_cfgs.
It needs to be assigned for __counted_by to work.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20260629032540.2331559-3-rosenp@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
clk: samsung: use kzalloc_flex 2026-07-18T16:21:13+00:00 Rosen Penev rosenp@gmail.com 2026-06-29T03:25:38+00:00 7b2a8eb5c7b5545793e18036c8b66106f2d9fbb8 Simplify allocation by using kzalloc_flex with a flexible array member to combine allocations. samsung_clk_alloc_reg_dump is no longer needed for this struct but is needed elsewhere. Add __counted_by for extra runtime analysis. Move counting variable assignment after kzalloc_flex which does the same with GCC 15 and above. Signed-off-by: Rosen Penev <rosenp@gmail.com> Link: https://patch.msgid.link/20260629032540.2331559-2-rosenp@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> 
Simplify allocation by using kzalloc_flex with a flexible array member
to combine allocations. samsung_clk_alloc_reg_dump is no longer needed
for this struct but is needed elsewhere.

Add __counted_by for extra runtime analysis. Move counting variable
assignment after kzalloc_flex which does the same with GCC 15 and above.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20260629032540.2331559-2-rosenp@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
clk: samsung: exynos990: Fix PERIS gate clock parents 2026-07-13T07:09:41+00:00 Denzeel Oliva wachiturroxd150@gmail.com 2026-06-13T12:36:18+00:00 a016e89781478e4b756fbf104945d037d0cdc809 Correct eight PERIS gate clock parents to match the hardware clock tree and reorder the GIC mux parents so mout_peris_bus_user is the default source. Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com> Reviewed-by: Peter Griffin <peter.griffin@linaro.org> Link: https://patch.msgid.link/20260613-exynos990-peris-fix-v3-v3-3-2b230db78ae4@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> 
Correct eight PERIS gate clock parents to match the hardware clock
tree and reorder the GIC mux parents so mout_peris_bus_user is the
default source.

Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://patch.msgid.link/20260613-exynos990-peris-fix-v3-v3-3-2b230db78ae4@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
clk: samsung: exynos990: Add PERIS TMU_SUB_PCLK gate 2026-07-13T07:09:41+00:00 Denzeel Oliva wachiturroxd150@gmail.com 2026-06-13T12:36:17+00:00 b7d6221aa44fc523c3418ecd94c582eea6e6d53a Add the missing CLK_GOUT_PERIS_TMU_SUB_PCLK gate clock for the Thermal Management Unit sub-block and update CLKS_NR_PERIS accordingly. Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com> Reviewed-by: Peter Griffin <peter.griffin@linaro.org> Link: https://patch.msgid.link/20260613-exynos990-peris-fix-v3-v3-2-2b230db78ae4@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> 
Add the missing CLK_GOUT_PERIS_TMU_SUB_PCLK gate clock for the Thermal
Management Unit sub-block and update CLKS_NR_PERIS accordingly.

Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://patch.msgid.link/20260613-exynos990-peris-fix-v3-v3-2-2b230db78ae4@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03T05:38:17+00:00 Uwe Kleine-König (The Capable Hub) u.kleine-koenig@baylibre.com 2026-06-30T09:24:36+00:00 995832b2cebe6969d1b42635db698803ee31294d Replace the #include of <linux/mod_devicetable.h> by the more specific <linux/device-id/*.h> where applicable. For most cases the include can be dropped completely, only a few drivers need one or two headers added. Acked-by: Danilo Krummrich <dakr@kernel.org> Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com> 
Replace the #include of <linux/mod_devicetable.h> by the more specific
<linux/device-id/*.h> where applicable. For most cases the include
can be dropped completely, only a few drivers need one or two headers
added.

Acked-by: Danilo Krummrich <dakr@kernel.org>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>