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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: Ruchika Kharwar <ruchika@ti.com>
[oleksandr.savchenko@ti.com: add some whitespaces]
Signed-off-by: Alexander Savchenko <oleksandr.savchenko@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Ruchika Kharwar 2013-07-08 10:28:57 +03:00 committed by Greg Kroah-Hartman
parent c441508421
commit 76bac1987c
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/omap-serial.c
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@ -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;