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FAILED: patch "[PATCH] ARM: dts: Fix occasional boot hang for am3 usb" failed to apply to 6.1-stable tree

PATCH [email protected] 1 participant 1 message Dec 28, 2023

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The patch below does not apply to the 6.1-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 <[email protected]>.

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-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x 9b6a51aab5f5f9f71d2fa16e8b4d530e1643dfcb
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2023122844-impending-deceiving-5f9d@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..

Possible dependencies:

9b6a51aab5f5 ("ARM: dts: Fix occasional boot hang for am3 usb")

thanks,

greg k-h

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

From 9b6a51aab5f5f9f71d2fa16e8b4d530e1643dfcb Mon Sep 17 00:00:00 2001
From: Tony Lindgren <[email protected]>
Date: Tue, 12 Dec 2023 15:50:35 +0200
Subject: [PATCH] ARM: dts: Fix occasional boot hang for am3 usb

With subtle timings changes, we can now sometimes get an external abort on non-linefetch error booting am3 devices at sysc_reset(). This is because of a missing reset delay needed for the usb target module.

Looks like we never enabled the delay earlier for am3, although a similar issue was seen earlier with a similar usb setup for dm814x as described in commit ebf244148092 ("ARM: OMAP2+: Use srst_udelay for USB on dm814x").

Fixes 0782e8572ce4 ("ARM: dts: Probe am335x musb with ti-sysc")
arch/arm/boot/dts/ti/omap/am33xx.dtsi +1 -0
index 1a2cd5baf402..5b9e01a8aa5d 100644
@@ -359,6 +359,7 @@ usb: target-module@47400000 {
 					<SYSC_IDLE_NO>,
 					<SYSC_IDLE_SMART>,
 					<SYSC_IDLE_SMART_WKUP>;
+			ti,sysc-delay-us = <2>;
 			clocks = <&l3s_clkctrl AM3_L3S_USB_OTG_HS_CLKCTRL 0>;
 			clock-names = "fck";
 			#address-cells = <1>;