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Commit 76bac198 authored by Ruchika Kharwar's avatar Ruchika Kharwar Committed by Greg Kroah-Hartman
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OMAP: UART: Fix the revision register read. 



The revision register is a 32 bit register. The serial_in() function reads
only the lower 16 bits of the register. This leads to an incorrect computation
of the Module revision.

Signed-off-by: default avatarRuchika Kharwar <ruchika@ti.com>
[oleksandr.savchenko@ti.com: add some whitespaces]
Signed-off-by: default avatarAlexander Savchenko <oleksandr.savchenko@ti.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c4415084

drivers/tty/serial/omap-serial.c

+1 −1
Original line number Diff line number Diff line
@@ -1344,7 +1344,7 @@ static void omap_serial_fill_features_erratas(struct uart_omap_port *up) 
	u32 mvr, scheme;

	u16 revision, major, minor;



	mvr = serial_in(up, UART_OMAP_MVER);

	mvr = readl(up->port.membase + (UART_OMAP_MVER << up->port.regshift));



	/* Check revision register scheme */

	scheme = mvr >> OMAP_UART_MVR_SCHEME_SHIFT;