Re: [PATCH] arm64: defconfig: Enable Texas Instruments UDMA driver

From: Olof Johansson
Date: Fri Jan 24 2020 - 15:09:42 EST


On Fri, Jan 24, 2020 at 11:23:59AM +0200, Peter Ujfalusi wrote:
> The UDMA driver is used on K3 platforms (am654 and j721e).
>
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
> ---
> Hi,
>
> The drivers for UDMA are already in linu-next and the DT patches are going to be
> also heading for 5.6.
> The only missing piece is to enable the drivers in defconfig so clients can use
> the DMA.

Hi Peter,

We normally like to see new options turned on after the driver/option has been
merged, so send this during or right after the merge window when that happens,
please.

I also see that this is statically enabling this driver -- we try to keep as
many drivers as possible as modules to avoid the static kernel from growing too
large. Would that be a suitable approach here, or is the driver needed to reach
rootfs for further module loading?


Thanks,

-Olof