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arm64: zynqmp: Revert usb node drive strength and slew rate for zcu106

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[ Upstream commit 767ecf9da7 ]

On a few zcu106 boards USB devices (Dell MS116 USB Optical Mouse, Dell USB
Entry Keyboard) are not enumerated on linux boot due to commit
'b8745e7eb488 ("arm64: zynqmp: Fix usb node drive strength and slew
rate")'.

To fix it as a workaround revert to working version and then investigate
at board level why drive strength from 12mA to 4mA and slew from fast to
slow is not working.

Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/85a70cb014ec1f07972fccb60b875596eeaa6b5c.1756799774.git.michal.simek@amd.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Radhey Shyam Pandey
2025-09-02 09:56:19 +02:00
committed by Greg Kroah-Hartman
parent ea6534d41f
commit 10bda7ac2a
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts
+2 -2
View File
@@ -808,8 +808,8 @@
pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
"MIO60", "MIO61", "MIO62", "MIO63";
bias-disable;
drive-strength = <4>;
slew-rate = <SLEW_RATE_SLOW>;
drive-strength = <12>;
slew-rate = <SLEW_RATE_FAST>;
};
};