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

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

clk: mediatek: Fix error handling in runtime PM setup

2026-01-23T01:46:53+00:00

devm_pm_runtime_enable() can fail due to memory allocation. The current code ignores its return value, and when pm_runtime_resume_and_get() fails, it returns directly without unmapping the shared_io region. Add error handling for devm_pm_runtime_enable(). Reorder cleanup labels to properly unmap shared_io on pm_runtime_resume_and_get() failure. Fixes: 2f7b1d8b5505 ("clk: mediatek: Do a runtime PM get on controllers during probe") Signed-off-by: Haotian Zhang Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Stephen Boyd

clk: mediatek: don't select clk-mt8192 for all ARM64 builds

2026-01-23T01:46:07+00:00

This option defaults to y for ARCH64 meaning it's built even if we don't want anything related to mediatek. Make the default condition stricter and only build it if ARCH_MEDIATEK is selected. Signed-off-by: Bartosz Golaszewski Reviewed-by: Brian Masney Reviewed-by: Chen-Yu Tsai Signed-off-by: Stephen Boyd

clk: mediatek: Add mfg_eb as parent to mt8196 mfgpll clocks

2026-01-23T01:44:35+00:00

All the MFGPLL require MFG_EB to be on for any operation on them, and they only tick when MFG_EB is on as well, therefore making this a parent-child relationship. This dependency wasn't clear during the initial upstreaming of these clock controllers, as it only made itself known when I could observe the effects of the clock by bringing up a different piece of hardware. Add a new PLL_PARENT_EN flag to mediatek's clk-pll.h, and check for it when initialising the pll to then translate it into the actual CLK_OPS_PARENT_ENABLE flag. Then add the mfg_eb parent to the mfgpll clocks, and set the new PLL_PARENT_EN flag. Fixes: 03dc02f8c7dc ("clk: mediatek: Add MT8196 mfg clock support") Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Nicolas Frattaroli Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Stephen Boyd

clk: mediatek: Refactor pllfh registration to pass device

2026-01-23T01:44:34+00:00

After refactoring all of PLL to pass the device, it's now fairly easy to refactor pllfh and its users, as pllfh registration wraps PLL registration. Do this refactor and move all of the pllfh users to pass the device as well. Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Nicolas Frattaroli Signed-off-by: Stephen Boyd

clk: mediatek: Pass device to clk_hw_register for PLLs

2026-01-23T01:44:33+00:00

Passing the struct device pointer to clk_hw_register allows for runtime power management to work for the registered clock controllers. However, the mediatek PLL clocks do not do this. Change this by adding a struct device pointer argument to mtk_clk_register_pll, and fix up the only other user of it. Also add a new member to the struct mtk_clk_pll for the struct device pointer, which is set by mtk_clk_register_pll and is used by mtk_clk_register_pll_ops. If mtk_clk_register_pll is called with a NULL struct device pointer, then everything still works as expected; the clock core will simply treat them as previously, i.e. without runtime power management. Reviewed-by: Chen-Yu Tsai Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Nicolas Frattaroli Signed-off-by: Stephen Boyd

clk: mediatek: Refactor pll registration to pass device

2026-01-23T01:44:32+00:00

As it stands, mtk_clk_register_plls takes a struct device_node pointer as its first argument. This is a tragic happenstance, as it's trivial to get the device_node from a struct device, but the opposite not so much. The struct device is a much more useful thing to have passed down. Refactor mtk_clk_register_plls to take a struct device pointer instead of a struct device_node pointer, and fix up all users of this function. Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Chen-Yu Tsai Signed-off-by: Nicolas Frattaroli Signed-off-by: Stephen Boyd

clk: mediatek: Drop __initconst from gates

2026-01-23T01:42:29+00:00

Since commit 8ceff24a754a ("clk: mediatek: clk-gate: Refactor mtk_clk_register_gate to use mtk_gate struct") the mtk_gate structs are no longer just used for initialization/registration, but also at runtime. So drop __initconst annotations. Fixes: 8ceff24a754a ("clk: mediatek: clk-gate: Refactor mtk_clk_register_gate to use mtk_gate struct") Signed-off-by: Sjoerd Simons Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Laura Nao Signed-off-by: Stephen Boyd