On Wed, Oct 19, 2022 at 04:27:27PM +0200, Quentin Schulz wrote:
From: Quentin Schulz quentin.schulz@theobroma-systems.com
From: Jakob Unterwurzacher jakob.unterwurzacher@theobroma-systems.com
You can not have 2 authors :(
CRC errors (code -84 EILSEQ) have been observed for some SanDisk Ultra A1 cards when running at 50MHz.
Waveform analysis suggest that the level shifters that are used on the RK3399-Q7 module for voltage translation between 3.0 and 3.3V don't handle clock rates at or above 48MHz properly. Back off to 40MHz for some safety margin.
Cc: stable@vger.kernel.org Fixes: 60fd9f72ce8a ("arm64: dts: rockchip: add Haikou baseboard with RK3399-Q7 SoM") Signed-off-by: Jakob Unterwurzacher jakob.unterwurzacher@theobroma-systems.com Signed-off-by: Quentin Schulz quentin.schulz@theobroma-systems.com
We've been carrying this patch downstream for years and completely forgot to upstream it. This is now done.
It has to be accepted before you are done :)
thanks,
greg k-h