[PATCH v3 1/5] clk: Respect CLK_OPS_PARENT_ENABLE during recalc

Mark Brown broonie at kernel.org
Wed Jan 28 09:08:28 PST 2026


On Wed, Jan 28, 2026 at 05:31:35PM +0100, Nicolas Frattaroli wrote:
> On Wednesday, 28 January 2026 16:21:47 Central European Standard Time Mark Brown wrote:

> > > [    1.478360] __clk_core_init: enabling parent sys_pll2_500m for arm_a53_div
> > > [    1.485259] __clk_core_init: disabling parent sys_pll2_500m for arm_a53_div

> > As expected same result on i.MX8MP-EVK.

> This one puzzles me a little. arm_a53_div is neither marked critical
> nor is its parent. If arm_a53_div is required for the system to function,
> then I'd have expected at least it to be marked as critical, allowing us
> to do the workaround in init I proposed as an alternate solution for the
> stm32mp1 in my other reply.

Given that all the cores in the system are A53s I rather fear that it is
in fact critical and should be marked as such.
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