kernel/linux.git/drivers/reset, branch v7.0-rc7

reset: rzg2l-usbphy-ctrl: Check pwrrdy is valid before using it

2026-02-23T16:03:28+00:00

The pwrrdy regmap_filed is allocated in rzg2l_usbphy_ctrl_pwrrdy_init() only if the driver data is set to RZG2L_USBPHY_CTRL_PWRRDY. Check that pwrrdy is valid before using it to avoid "Unable to handle kernel NULL pointer dereference at virtual address" errors. Fixes: c5b7cd9adefc ("reset: rzg2l-usbphy-ctrl: Add suspend/resume support") Signed-off-by: Claudiu Beznea Reviewed-by: Biju Das Signed-off-by: Philipp Zabel

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

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

This is the exact same thing as the 'alloc_obj()' version, only much smaller because there are a lot fewer users of the *alloc_flex() interface. As with alloc_obj() version, this was done entirely with mindless brute force, using the same script, except using 'flex' in the pattern rather than 'objs*'. Signed-off-by: Linus Torvalds

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

reset: spacemit: Add SpacemiT K3 reset driver

2026-01-24T15:53:02+00:00

Add support for the SpacemiT K3 SoC reset controller. The K3 reset driver reuses the common reset controller code and provides K3-specific reset data for devices managed by the following units: - MPMU (Main Power Management Unit) - APBC (APB clock unit) - APMU (Application Subsystem Power Management Unit) - DCIU (DMA Control and Interface Unit) Acked-by: Alex Elder Signed-off-by: Guodong Xu Reviewed-by: Yixun Lan Link: https://lore.kernel.org/spacemit/20260114092742-GYC7933267@gentoo.org/ [1] Signed-off-by: Philipp Zabel

reset: spacemit: Extract common K1 reset code

2026-01-24T15:53:02+00:00

Extract the common reset controller code from the K1 driver into separate reset-spacemit-common.{c,h} files to prepare for additional SpacemiT SoCs that share the same reset controller architecture. The common code includes handlers for reset assert and deassert operations and probing for auxiliary bus devices. Changes during extraction: - Module ownership: Use dev->driver->owner instead of THIS_MODULE in spacemit_reset_controller_register() to correctly reference the calling driver's module. - Rename spacemit_reset_ids to spacemit_k1_reset_ids. - Define new namespace "RESET_SPACEMIT" for the exported common functions (spacemit_reset_probe) and update K1 driver to import it. This prepares for additional SpacemiT SoCs (K3) that share the same reset controller architecture. Reviewed-by: Alex Elder Signed-off-by: Guodong Xu Reviewed-by: Yixun Lan Link: https://lore.kernel.org/spacemit/20260114092742-GYC7933267@gentoo.org/ [1] Signed-off-by: Philipp Zabel

reset: Create subdirectory for SpacemiT drivers

2026-01-24T15:53:02+00:00

Create a dedicated subdirectory for SpacemiT reset drivers to allow for better organization as support for more SoCs is added. Move the existing K1 reset driver into this new directory and rename it to reset-spacemit-k1.c. Rename the Kconfig symbol to RESET_SPACEMIT_K1 and update its default from ARCH_SPACEMIT to SPACEMIT_K1_CCU. The reset driver depends on the clock driver to register reset devices as an auxiliary device, so the default should reflect this dependency. Also sort the drivers/reset/Kconfig entries alphabetically. Reviewed-by: Alex Elder Signed-off-by: Guodong Xu Reviewed-by: Yixun Lan Link: https://lore.kernel.org/spacemit/20260114092742-GYC7933267@gentoo.org/ [1] Signed-off-by: Philipp Zabel

Merge tag 'spacemit-clkrst-v6.20-3' into reset/next

2026-01-24T15:51:04+00:00

reset: canaan: k230: drop OF dependency and enable by default

2026-01-24T15:45:19+00:00

The driver doesn't use any symbols depending on CONFIG_OF, so drop the dependency. Also, enable it by default when ARCH_CANAAN is selected. Fixes: 360a7a647759 ("reset: canaan: add reset driver for Kendryte K230") Signed-off-by: Junhui Liu Signed-off-by: Philipp Zabel

reset: rzg2l-usbphy-ctrl: Add suspend/resume support

2026-01-24T15:40:25+00:00

The RZ/G2L USBPHY control driver is also used on the RZ/G3S SoC. The RZ/G3S SoC supports a power-saving mode in which power to most USB components (including the USBPHY control block) is turned off. Because of this, the USBPHY control block needs to be reconfigured when returning from power-saving mode. Add suspend/resume support to handle runtime suspend/resume of the device, assert/deassert the reset signal, and reinitialize the USBPHY control block. Reviewed-by: Biju Das Reviewed-by: Philipp Zabel Signed-off-by: Claudiu Beznea Signed-off-by: Philipp Zabel