[PATCH 00/45] clk: Make sure clk_init_data is fully initialized (part two)

[Brian Masney]

Hi Geert / all,

On Fri, Aug 21, 2026 at 10:53:10AM +0200, Geert Uytterhoeven wrote:
> 	Hi all,
> 
> The clk_init_data structure contains several mutually-exclusive members
> for different methods to specify the possible parents of a clock,
> prompting drivers to initialize only the members they need.  However,
> not initializing all members may cause subtle issues, which are only
> exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is
> enabled.
> 
> Hence this series aims to make sure all members are fully initialized,
> to avoid such bugs, and to prevent future breakage when converting
> drivers to a different method for specifying the parents.
> 
> Part One[1] fixed all cases that I identified to be real bugs, in
> response to a crash I saw on BeagleBone Black.
> 
> This series is the clock subpart of Part Two, which fixes remaining
> cases that are currently harmless.  These are still fragile, and may
> cause future breakage when converting drivers to a different method for
> specifying the parents.
> 
> Thanks for your comments!
> 
> [1] "[PATCH treewide 0/5] clk: Make sure clk_init_data is fully
>      initialized (part 1)"
>     https://lore.kernel.org/cover.1787165329.git.geert+renesas@glider.be
> 
> Geert Uytterhoeven (45):
>   clk: aspeed: Make sure clk_init_data is fully initialized
>   clk: at91: Make sure clk_init_data is fully initialized
>   clk: bcm: iproc: Make sure clk_init_data is fully initialized
>   clk: berlin: Make sure clk_init_data is fully initialized
>   clk: cdce925: Make sure clk_init_data is fully initialized
>   clk: clk-axi-clkgen: Make sure clk_init_data is fully initialized
>   clk: cs2000-cp: Make sure clk_init_data is fully initialized
>   clk: davinci: Make sure clk_init_data is fully initialized
>   clk: fractional-divider: Make sure clk_init_data is fully initialized
>   clk: gemini: Make sure clk_init_data is fully initialized
>   clk: highbank: Make sure clk_init_data is fully initialized
>   clk: hisilicon: Make sure clk_init_data is fully initialized
>   clk: imx: Make sure clk_init_data is fully initialized
>   clk: ingenic: Make sure clk_init_data is fully initialized
>   clk: keystone: Make sure clk_init_data is fully initialized
>   clk: lmk04832: Make sure clk_init_data is fully initialized
>   clk: mediatek: Make sure clk_init_data is fully initialized
>   clk: milbeaut: Make sure clk_init_data is fully initialized
>   clk: mmp: Make sure clk_init_data is fully initialized
>   clk: mvebu: Make sure clk_init_data is fully initialized
>   clk: mxs: Make sure clk_init_data is fully initialized
>   clk: nomadik: Make sure clk_init_data is fully initialized
>   clk: npcm7xx: Make sure clk_init_data is fully initialized
>   clk: nxp: Make sure clk_init_data is fully initialized
>   clk: pistachio: Make sure clk_init_data is fully initialized
>   clk: pwm: Make sure clk_init_data is fully initialized
>   clk: renesas: Make sure clk_init_data is fully initialized
>   clk: rockchip: Make sure clk_init_data is fully initialized
>   clk: samsung: Make sure clk_init_data is fully initialized
>   clk: scpi: Make sure clk_init_data is fully initialized
>   clk: silabs: Make sure clk_init_data is fully initialized
>   clk: socfpga: Make sure clk_init_data is fully initialized
>   clk: spear: Make sure clk_init_data is fully initialized
>   clk: stm32: Make sure clk_init_data is fully initialized
>   clk: st: Make sure clk_init_data is fully initialized
>   clk: sunxi: Make sure clk_init_data is fully initialized
>   clk: tegra: Make sure clk_init_data is fully initialized
>   clk: uniphier: Make sure clk_init_data is fully initialized
>   clk: ux500: Make sure clk_init_data is fully initialized
>   clk: versatile: Make sure clk_init_data is fully initialized
>   clk: vt8500: Make sure clk_init_data is fully initialized
>   clk: x86: Make sure clk_init_data is fully initialized
>   clk: xgene: Make sure clk_init_data is fully initialized
>   clk: xilinx: Make sure clk_init_data is fully initialized
>   clk: zynqmp: Make sure clk_init_data is fully initialized

44 / 45 patches have been added to clk-next. I took it all for simplicity
rather than everyone trying to cherry pick just their parts.

Geert: The only patch that didn't apply was:

  [PATCH 27/45] clk: renesas: Make sure clk_init_data is fully initialized

I didn't look into it too much.

Brian