Re: [PATCH v1 05/14] arm64: defconfig: build imx-sdma as a module

[Stefan Wahren]

Hi Marcel,

Am 07.01.22 um 19:03 schrieb Marcel Ziswiler:
> From: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>
>
> This avoids firmware load error and sysfs fallback reported as follows:
>
> [    0.199448] imx-sdma 302c0000.dma-controller: Direct firmware load
>  for imx/sdma/sdma-imx7d.bin failed with error -2
> [    0.199487] imx-sdma 302c0000.dma-controller: Falling back to sysfs
>  fallback for: imx/sdma/sdma-imx7d.bin

unfortunately this isn't an explanation why this solve the issue. It
looks like that the SDMA firmware is not available for the kernel. Build
the driver as a module hide the issue and just load it if the rootfs is
available.

What makes you sure that the driver is not critical for other boards
during boot?

Best regards

>
> Signed-off-by: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>
> ---
>
>  arch/arm64/configs/defconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> index 3c8106c5776a..a18785a827dc 100644
> --- a/arch/arm64/configs/defconfig
> +++ b/arch/arm64/configs/defconfig
> @@ -915,7 +915,7 @@ CONFIG_DMADEVICES=y
>  CONFIG_DMA_BCM2835=y
>  CONFIG_DMA_SUN6I=m
>  CONFIG_FSL_EDMA=y
> -CONFIG_IMX_SDMA=y
> +CONFIG_IMX_SDMA=m
>  CONFIG_K3_DMA=y
>  CONFIG_MV_XOR=y
>  CONFIG_MV_XOR_V2=y