lwn.git/drivers/reset/reset-npcm.c, branch docs-mw

reset: npcm: Use devm_register_sys_off_handler()

2026-03-06T10:03:28+00:00

Function register_restart_handler() is deprecated. Using this new API removes our need to keep and manage a struct notifier_block and to later unregister the handler. Signed-off-by: Andrew Davis Reviewed-by: Philipp Zabel Signed-off-by: Philipp Zabel

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

2024-11-23T01:02:25+00:00

Pull clk updates from Stephen Boyd: "The core framework gained a clk provider helper, a clk consumer helper, and some unit tests for the assigned clk rates feature in DeviceTree. On the vendor driver side, we gained a whole pile of SoC driver support detailed below. The majority in the diffstat is Qualcomm, but there's also quite a few Samsung and Mediatek clk driver additions in here as well. The top vendors is quite common, but the sheer amount of new drivers is uncommon, so I'm anticipating a larger number of fixes for clk drivers this cycle. Core: - devm_clk_bulk_get_all_enabled() to return number of clks acquired - devm_clk_hw_register_gate_parent_hw() helper to modernize drivers - KUnit tests for clk-assigned-rates{,-u64} New Drivers: - Marvell PXA1908 SoC clks - Mobileye EyeQ5, EyeQ6L and EyeQ6H clk driver - TWL6030 clk driver - Nuvoton Arbel BMC NPCM8XX SoC clks - MediaTek MT6735 SoC clks - MediaTek MT7620, MT7628 and MT7688 MMC clks - Add a driver for gated fixed rate clocks - Global clock controllers for Qualcomm QCS8300 and IPQ5424 SoCs - Camera, display and video clock controllers for Qualcomm SA8775P SoCs - Global, display, GPU, TCSR, and RPMh clock controllers for Qualcomm SAR2130P - Global, camera, display, GPU, and video clock controllers for Qualcomm SM8475 SoCs - RTC power domain and Battery Backup Function (VBATTB) clock support for the Renesas RZ/G3S SoC - Qualcomm IPQ9574 alpha PLLs - Support for i.MX91 CCM in the i.MX93 driver - Microchip LAN969X SoC clks - Cortex-A55 core clocks and Interrupt Control Unit (ICU) clock and reset on Renesas RZ/V2H(P) - Samsung ExynosAutov920 clk drivers for PERIC1, MISC, HSI0 and HSI1 - Samsung Exynos8895 clk drivers for FSYS0/1, PERIC0/1, PERIS and TOP Updates: - Convert more clk bindings to YAML - Various clk driver cleanups: NULL checks, add const, etc. - Remove END/NUM #defines that count number of clks in various binding headers - Continue moving reset drivers to drivers/reset via auxiliary bus" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (162 commits) clk: clk-loongson2: Fix potential buffer overflow in flexible-array member access clk: Fix invalid execution of clk_set_rate clk: clk-loongson2: Fix memory corruption bug in struct loongson2_clk_provider clk: lan966x: make it selectable for ARCH_LAN969X clk: eyeq: add EyeQ6H west fixed factor clocks clk: eyeq: add EyeQ6H central fixed factor clocks clk: eyeq: add EyeQ5 fixed factor clocks clk: eyeq: add fixed factor clocks infrastructure clk: eyeq: require clock index with phandle in all cases clk: fixed-factor: add clk_hw_register_fixed_factor_index() function dt-bindings: clock: eyeq: add more Mobileye EyeQ5/EyeQ6H clocks dt-bindings: soc: mobileye: set `#clock-cells = <1>` for all compatibles clk: clk-axi-clkgen: make sure to enable the AXI bus clock dt-bindings: clock: axi-clkgen: include AXI clk clk: mmp: Add Marvell PXA1908 MPMU driver clk: mmp: Add Marvell PXA1908 APMU driver clk: mmp: Add Marvell PXA1908 APBCP driver clk: mmp: Add Marvell PXA1908 APBC driver dt-bindings: clock: Add Marvell PXA1908 clock bindings clk: mmp: Switch to use struct u32_fract instead of custom one ...

reset: npcm: register npcm8xx clock auxiliary bus device

2024-10-17T22:17:51+00:00

Add NPCM8xx clock controller auxiliary bus device registration. The NPCM8xx clock controller is registered as an aux device because the reset and the clock controller share the same register region. Signed-off-by: Tomer Maimon Tested-by: Benjamin Fair Reviewed-by: Philipp Zabel Link: https://lore.kernel.org/r/20240912191038.981105-3-tmaimon77@gmail.com Signed-off-by: Stephen Boyd

reset: npcm: convert comma to semicolon

2024-09-30T12:17:13+00:00

Replace a comma between expression statements by a semicolon. Signed-off-by: Yan Zhen Reviewed-by: Philipp Zabel Link: https://lore.kernel.org/r/20240909061258.2246292-1-yanzhen@vivo.com Signed-off-by: Philipp Zabel

reset: Use device_get_match_data()

2023-11-28T16:23:01+00:00

Use preferred device_get_match_data() instead of of_match_device() to get the driver match data. With this, adjust the includes to explicitly include the correct headers. Signed-off-by: Rob Herring Reviewed-by: Patrice Chotard Link: https://lore.kernel.org/r/20231115205848.3732609-1-robh@kernel.org Signed-off-by: Philipp Zabel

reset: npcm: remove unneeded call to platform_set_drvdata()

2023-08-08T13:31:00+00:00

This function call was found to be unnecessary as there is no equivalent platform_get_drvdata() call to access the private data of the driver. Also, the private data is defined in this driver, so there is no risk of it being accessed outside of this driver file. Reviewed-by: Alexandru Ardelean Signed-off-by: Andrei Coardos Link: https://lore.kernel.org/r/20230807105630.11638-1-aboutphysycs@gmail.com Signed-off-by: Philipp Zabel

reset: npcm: fix iprst2 and iprst4 setting

2022-09-22T15:48:35+00:00

In NPCM8XX USB reset sequence, iprst2 register was set with iprst4 value and iprst4 register wasn´t set. This fix sets the correct IP reset values in iprst2 and iprst4 registers in NPCM8XX USB reset sequence. Fixes: fc5d2a2f4aa5 ("reset: npcm: Add NPCM8XX support") Signed-off-by: Tomer Maimon Signed-off-by: Philipp Zabel Link: https://lore.kernel.org/r/20220922153856.23326-1-tmaimon77@gmail.com

reset: npcm: Add NPCM8XX support

2022-07-19T13:41:03+00:00

Updated the NPCM reset driver to add support for Nuvoton BMC NPCM8XX SoC. As part of adding NPCM8XX support: - Add NPCM8XX specific compatible string. - Add NPCM8XX USB reset. - Add data to handle architecture-specific reset parameters. - Some of the Reset Id and number of resets are different from NPCM7XX. Signed-off-by: Tomer Maimon Acked-by: Philipp Zabel Signed-off-by: Arnd Bergmann