FAILED: patch "[PATCH] arm64: dts: rockchip: Disable HS400 for eMMC on ROCK Pi 4" failed to apply to 5.4-stable tree

[<gregkh@linuxfoundation.org>]

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/ linux-5.4.y
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";
 };