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| author | Alexander Shishkin <virtuoso@slind.org> | 2010-01-08 18:29:06 (GMT) |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-01-08 18:29:06 (GMT) |
| commit | 9230372aeecc0a634f708e9eb8668769daa1ed5a (patch) | |
| tree | 69acba1ad11e9b3e4e79efdd63002557864ffeaf /arch/arm/mach-omap2/serial.c | |
| parent | 66215949e6512f61c2c92b65ea79f8566e9e650a (diff) | |
| download | linux-9230372aeecc0a634f708e9eb8668769daa1ed5a.tar.xz | |
omap2/3: make serial_in_override() address the right uart port
Commit f62349ee9788b1d94c55eb6c291d74a1f69bdd9e makes it possible to
have some other than first uart port as ttyS0, which breaks the workaround
serial_in_override() function which will try to address the first uart
port (for ttyS0) and not the one that was initialized.
Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
CC: Mika Westerberg <ext-mika.1.westerberg@nokia.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/serial.c')
| -rw-r--r-- | arch/arm/mach-omap2/serial.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 19805a7..8c964be 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -125,6 +125,13 @@ static struct plat_serial8250_port serial_platform_data3[] = { } }; #endif +static inline unsigned int __serial_read_reg(struct uart_port *up, + int offset) +{ + offset <<= up->regshift; + return (unsigned int)__raw_readb(up->membase + offset); +} + static inline unsigned int serial_read_reg(struct plat_serial8250_port *up, int offset) { @@ -583,11 +590,12 @@ static unsigned int serial_in_override(struct uart_port *up, int offset) { if (UART_RX == offset) { unsigned int lsr; - lsr = serial_read_reg(omap_uart[up->line].p, UART_LSR); + lsr = __serial_read_reg(up, UART_LSR); if (!(lsr & UART_LSR_DR)) return -EPERM; } - return serial_read_reg(omap_uart[up->line].p, offset); + + return __serial_read_reg(up, offset); } void __init omap_serial_early_init(void) |