On Wed, Oct 19, 2022 at 04:27:27PM +0200, Quentin Schulz wrote:

From: Quentin Schulz <redacted>

From: Jakob Unterwurzacher <redacted>

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 <redacted>
Signed-off-by: Quentin Schulz <redacted>
---
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

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