linux-kernel - [PATCH 3.18 05/28] ARM: omap2plus_defconfig: Fix probe errors on UARTs 5 and 6

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Date:   Mon, 13 Nov 2017 13:54:59 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Tony Lindgren <tony@...mide.com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 3.18 05/28] ARM: omap2plus_defconfig: Fix probe errors on UARTs 5 and 6

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tony Lindgren <tony@...mide.com>


[ Upstream commit 4cd6a59f5c1a9b0cca0da09fbba42b9450ffc899 ]

We have more than four uarts on some SoCs and that can cause
noise with errors while booting.

Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/arm/configs/omap2plus_defconfig |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -169,6 +169,7 @@ CONFIG_INPUT_TWL4030_PWRBUTTON=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=32
+CONFIG_SERIAL_8250_RUNTIME_UARTS=6
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y