From: Jan Beulich <JBeulich@novell.com>
Date: Fri, 4 Sep 2009 08:13:49 +0000 (+0100)
Subject: x86: Increase timeout for EHCI debug port reset completion in early printk
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=414128bd33fef3242747154dfa444970bc5caf4c;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

x86: Increase timeout for EHCI debug port reset completion in early printk

On one of my systems, several thousand iterations are needed before
CMD_RESET can be observed clear after setting it. Using a much
higher value here obviously cannot hurt.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
LKML-Reference: <4AA0E85D02000078000136F9@vpn.id2.novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index 335f049d110f..b11cab3c323a 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -624,7 +624,7 @@ try_next_port:
 		return -1;
 	}
 
-	loop = 10;
+	loop = 100000;
 	/* Reset the EHCI controller */
 	cmd = readl(&ehci_regs->command);
 	cmd |= CMD_RESET;