Re: [PATCH] mailbox, remoteproc: k3-m4+: fix compile testing

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On Mon, Oct 07, 2024 at 01:23:57PM +0000, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> The k3-m4 remoteproc driver was merged with incorrect dependencies.
> Despite multiple people trying to fix this, the version 6.12-rc2
> remains broken and causes a build failure with CONFIG_TI_SCI_PROTOCOL=m
> when the driver is built-in.
>

(Sigh)

I will do my own testing and will get back to you.

> arm-linux-gnueabi-ld: drivers/remoteproc/ti_k3_m4_remoteproc.o: in function `k3_m4_rproc_probe':
> ti_k3_m4_remoteproc.c:(.text.k3_m4_rproc_probe+0x76): undefined reference to `devm_ti_sci_get_by_phandle'
> 
> Fix the dependency again to make it work in all configurations.
> The 'select OMAP2PLUS_MBOX' no longer matches what the other drivers
> dependencies. The link failure can be avoided with a simple 'depends
> do, so turn that into the same 'depends' to ensure we get no circular
> on TI_SCI_PROTOCOL', but the extra COMPILE_TEST alternative is what
> we use elsehwere. On the other hand, building for OMAP2PLUS makes
> no sense since the hardware only exists on K3.
> 
> Fixes: ebcf9008a895 ("remoteproc: k3-m4: Add a remoteproc driver for M4F subsystem")
> Fixes: ba0c0cb56f22 ("remoteproc: k3-m4: use the proper dependencies")
> Fixes: 54595f2807d2 ("mailbox, remoteproc: omap2+: fix compile testing")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
>  drivers/remoteproc/Kconfig | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
> index 955e4e38477e..62f8548fb46a 100644
> --- a/drivers/remoteproc/Kconfig
> +++ b/drivers/remoteproc/Kconfig
> @@ -341,9 +341,9 @@ config TI_K3_DSP_REMOTEPROC
>  
>  config TI_K3_M4_REMOTEPROC
>  	tristate "TI K3 M4 remoteproc support"
> -	depends on ARCH_OMAP2PLUS || ARCH_K3
> -	select MAILBOX
> -	select OMAP2PLUS_MBOX
> +	depends on ARCH_K3 || COMPILE_TEST
> +	depends on TI_SCI_PROTOCOL || (COMPILE_TEST && TI_SCI_PROTOCOL=n)
> +	depends on OMAP2PLUS_MBOX
>  	help
>  	  Say m here to support TI's M4 remote processor subsystems
>  	  on various TI K3 family of SoCs through the remote processor
> -- 
> 2.39.2
> 




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