linux-kernel - [PATCH] pch_uart: Add Kontron COMe-mTT10 uart clock quirk

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Message-ID: <20120322211903.6776ab18@mail.gmx.de>
Date:	Thu, 22 Mar 2012 21:19:03 +0100
From:	Michael Brunner <mibru@....de>
To:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Cc:	"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
	"Alan Cox" <alan@...ux.intel.com>,
	"Darren Hart" <dvhart@...ux.intel.com>,
	linux-serial@...r.kernel.org
Subject: [PATCH] pch_uart: Add Kontron COMe-mTT10 uart clock quirk

Add UART clock quirk for the Kontron COMe-mTT10 module.
The board has previously been called nanoETXexpress-TT, therefore this
is also checked. 

This patch follows the patchset submitted by Darren Hart at
commit a46f5533ecfc7bbdd646d84fdab8656031a715c6.

Signed-off-by: Michael Brunner <mibru@....de>
---
 drivers/tty/serial/pch_uart.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 332f2eb..0ab5295 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -210,6 +210,7 @@ enum {
 #define CMITC_UARTCLK   192000000 /* 192.0000 MHz */
 #define FRI2_64_UARTCLK  64000000 /*  64.0000 MHz */
 #define FRI2_48_UARTCLK  48000000 /*  48.0000 MHz */
+#define NTC1_UARTCLK     64000000 /*  64.0000 MHz */
 
 struct pch_uart_buffer {
 	unsigned char *buf;
@@ -379,6 +380,10 @@ static int pch_uart_get_uartclk(void)
 	cmp = dmi_get_system_info(DMI_BOARD_NAME);
 	if (cmp && strstr(cmp, "CM-iTC"))
 		return CMITC_UARTCLK;
+	/* Kontron COMe-mTT10 (nanoETXexpress-TT) */
+	if (cmp && (strstr(cmp, "COMe-mTT") ||
+		    strstr(cmp, "nanoETXexpress-TT")))
+		return NTC1_UARTCLK;
 
 	cmp = dmi_get_system_info(DMI_BIOS_VERSION);
 	if (cmp && strnstr(cmp, "FRI2", 4))
--
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