For reference, I don't think it's worth carrying this patch to 5.4-stable. @Heiko, please correct me if you think I am wrong.

On Mon, 2023-08-21 at 19:09 +0200, gregkh@linuxfoundation.org wrote:

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/%C2%A0linux... git checkout FETCH_HEAD git cherry-pick -x cee572756aa2cb46e959e9797ad4b730b78a050b # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2023082156-capped-subtext-c4e2@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..

Possible dependencies:

cee572756aa2 ("arm64: dts: rockchip: Disable HS400 for eMMC on ROCK Pi 4") 06c5b5690a57 ("arm64: dts: rockchip: sort nodes/properties on rk3399-rock-4") 69448624b770 ("arm64: dts: rockchip: fix regulator name on rk3399-rock-4") 8240e87f16d1 ("arm64: dts: rockchip: fix audio-supply for Rock Pi 4") 697dd494cb1c ("arm64: dts: rockchip: add SPDIF node for ROCK Pi 4") 65bd2b8bdb3b ("arm64: dts: rockchip: add ES8316 codec for ROCK Pi 4") 328c6112787b ("arm64: dts: rockchip: fix supplies on rk3399-rock-pi-4") b5edb0467370 ("arm64: dts: rockchip: Mark rock-pi-4 as rock-pi-4a dts") 2bc65fef4fe4 ("arm64: dts: rockchip: rename label and nodename pinctrl subnodes that end with gpio") 7a87adbc4afe ("arm64: dts: rockchip: enable DC charger detection pullup on Pinebook Pro") 40df91a894e9 ("arm64: dts: rockchip: fix inverted headphone detection on Pinebook Pro") 5a65505a6988 ("arm64: dts: rockchip: Add initial support for Pinebook Pro") c2753d15d2b3 ("arm64: dts: rockchip: split rk3399-rockpro64 for v2 and v2.1 boards") cfd66c682e8b ("arm64: dts: rockchip: Add regulators for PCIe for Radxa Rock Pi 4 board") 023115cdea26 ("arm64: dts: rockchip: add thermal infrastructure to px30") 526ba2e2cf61 ("arm64: dts: rockchip: Enable PCIe for Radxa Rock Pi 4 board") eb275167d186 ("Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From cee572756aa2cb46e959e9797ad4b730b78a050b Mon Sep 17 00:00:00 2001 From: Christopher Obbard chris.obbard@collabora.com Date: Wed, 5 Jul 2023 15:42:54 +0100 Subject: [PATCH] arm64: dts: rockchip: Disable HS400 for eMMC on ROCK Pi 4

There is some instablity with some eMMC modules on ROCK Pi 4 SBCs running in HS400 mode. This ends up resulting in some block errors after a while or after a "heavy" operation utilising the eMMC (e.g. resizing a filesystem). An example of these errors is as follows:

[  289.171014] mmc1: running CQE recovery     [  290.048972] mmc1: running CQE recovery     [  290.054834] mmc1: running CQE recovery     [  290.060817] mmc1: running CQE recovery     [  290.061337] blk_update_request: I/O error, dev mmcblk1, sector 1411072 op 0x1:(WRITE) flags 0x800 phys_seg 36 prio class 0     [  290.061370] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:348: I/O error 10 writing to inode 29547 starting block 176466)     [  290.061484] Buffer I/O error on device mmcblk1p1, logical block 172288     [  290.061531] Buffer I/O error on device mmcblk1p1, logical block 172289     [  290.061551] Buffer I/O error on device mmcblk1p1, logical block 172290     [  290.061574] Buffer I/O error on device mmcblk1p1, logical block 172291     [  290.061592] Buffer I/O error on device mmcblk1p1, logical block 172292     [  290.061615] Buffer I/O error on device mmcblk1p1, logical block 172293     [  290.061632] Buffer I/O error on device mmcblk1p1, logical block 172294     [  290.061654] Buffer I/O error on device mmcblk1p1, logical block 172295     [  290.061673] Buffer I/O error on device mmcblk1p1, logical block 172296     [  290.061695] Buffer I/O error on device mmcblk1p1, logical block 172297

Disabling the Command Queue seems to stop the CQE recovery from running, but doesn't seem to improve the I/O errors. Until this can be investigated further, disable HS400 mode on the ROCK Pi 4 SBCs to at least stop I/O errors from occurring.

While we are here, set the eMMC maximum clock frequency to 1.5MHz to follow the ROCK 4C+.

Fixes: 1b5715c602fd ("arm64: dts: rockchip: add ROCK Pi 4 DTS support") Signed-off-by: Christopher Obbard chris.obbard@collabora.com Tested-By: Folker Schwesinger dev@folker-schwesinger.de Link: https://lore.kernel.org/r/20230705144255.115299-2-chris.obbard@collabora.com Signed-off-by: Heiko Stuebner heiko@sntech.de

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi index 907071d4fe80..95efee311ece 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi @@ -645,9 +645,9 @@ &saradc {  };    &sdhci {

• max-frequency = <150000000>;

bus-width = <8>;

• mmc-hs400-1_8v;
• mmc-hs400-enhanced-strobe;

• mmc-hs200-1_8v;

non-removable;   status = "okay";  };