Re: [REGRESSION] spi: omap2-mcspi: not working with kernel v6.10
From: Thorsten Leemhuis
Date: Mon Jun 17 2024 - 05:29:18 EST
[CCing the regression list, as it should be in the loop for regressions:
https://docs.kernel.org/admin-guide/reporting-regressions.html]
On 12.06.24 19:00, João Paulo Gonçalves wrote:
>
> It appears that omap2-mcspi broke on kernel v6.10. I was testing an EEPROM like
> SPI FRAM using this DT:
>
> &main_spi1 {
> pinctrl-0 = <&pinctrl_spi1>,
> <&pinctrl_gpio_4>;
> cs-gpios = <&mcu_gpio0 4 GPIO_ACTIVE_LOW>;
> status = "okay";
>
> fram@0 {
> compatible = "fujitsu,mb85rs256", "atmel,at25";
> reg = <0>;
> address-width = <16>;
> size = <32768>;
> spi-max-frequency = <33000000>;
> pagesize = <1>;
> };
> };
>
> On kernel v6.9, spi works fine and is possible to read/write the FRAM. However,
> on kernel v6.10-rc3 it gives me an Oops after a timeout:
> [...]
Thx for the report. Hmm, no developer replied yet. I suspect that means
they have no idea what causes this. In that case the thing that really
helps would be if you could use a git bisection to find the change that
causes this.
Anyway, to ensure that does not fall though the cracks, let me add this
to the tracking:
#regzbot report ^
#regzbot introduced: v6.9..v6.10-rc3
#regzbot summary: spi: omap2-mcspi: omap2-mcspi broke, Oops after a timeout
Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
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