Re: [PATCH] i2c: designware: Revert recent changes to i2c_dw_probe_lock_support()

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Hi

On 1/11/24 19:56, Kim Phillips wrote:
[    6.245173] i2c_designware AMDI0010:00: Unknown Synopsys component type: 0xffffffff

This has puzzled me all the time since I'm unable to see which one of Andy's patches could cause it. However controller is clearly powered down since DW_IC_COMP_TYPE register reads 0xffffffff.

That I'd call as a regression one. Second regression is the Oops and I was speculating if commit bd466a892612 ("i2c: designware: Fix PM calls order in dw_i2c_plat_probe()") can cause it.


Hold on, I'm testing this on top of next-20240111 and still seeing the splat...

Btw, does this reproduce always? Can we be mislead if it happens somewhat randomly? Happens to boot once we revert some commits and then at another Andy's nearby commit does not and we make the wrong conclusion?

Does bisecting between v6.7-rc1 and next-20240111 lead anywhere?





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