diff options
author | Alexander Shishkin <virtuoso@slind.org> | 2010-01-08 13:29:06 -0500 |
---|---|---|
committer | Tony Lindgren <tony@atomide.com> | 2010-01-08 13:29:06 -0500 |
commit | 9230372aeecc0a634f708e9eb8668769daa1ed5a (patch) | |
tree | 69acba1ad11e9b3e4e79efdd63002557864ffeaf /arch/arm/mach-omap2 | |
parent | 66215949e6512f61c2c92b65ea79f8566e9e650a (diff) |
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')
-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 19805a7de06c..8c964bec8159 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[] = { | |||
125 | } | 125 | } |
126 | }; | 126 | }; |
127 | #endif | 127 | #endif |
128 | static inline unsigned int __serial_read_reg(struct uart_port *up, | ||
129 | int offset) | ||
130 | { | ||
131 | offset <<= up->regshift; | ||
132 | return (unsigned int)__raw_readb(up->membase + offset); | ||
133 | } | ||
134 | |||
128 | static inline unsigned int serial_read_reg(struct plat_serial8250_port *up, | 135 | static inline unsigned int serial_read_reg(struct plat_serial8250_port *up, |
129 | int offset) | 136 | int offset) |
130 | { | 137 | { |
@@ -583,11 +590,12 @@ static unsigned int serial_in_override(struct uart_port *up, int offset) | |||
583 | { | 590 | { |
584 | if (UART_RX == offset) { | 591 | if (UART_RX == offset) { |
585 | unsigned int lsr; | 592 | unsigned int lsr; |
586 | lsr = serial_read_reg(omap_uart[up->line].p, UART_LSR); | 593 | lsr = __serial_read_reg(up, UART_LSR); |
587 | if (!(lsr & UART_LSR_DR)) | 594 | if (!(lsr & UART_LSR_DR)) |
588 | return -EPERM; | 595 | return -EPERM; |
589 | } | 596 | } |
590 | return serial_read_reg(omap_uart[up->line].p, offset); | 597 | |
598 | return __serial_read_reg(up, offset); | ||
591 | } | 599 | } |
592 | 600 | ||
593 | void __init omap_serial_early_init(void) | 601 | void __init omap_serial_early_init(void) |