diff options
Diffstat (limited to 'recipes/linux/linux-davinci-2.6.25/8250_davinci.patch')
| -rw-r--r-- | recipes/linux/linux-davinci-2.6.25/8250_davinci.patch | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/recipes/linux/linux-davinci-2.6.25/8250_davinci.patch b/recipes/linux/linux-davinci-2.6.25/8250_davinci.patch new file mode 100644 index 0000000000..3625ded357 --- /dev/null +++ b/recipes/linux/linux-davinci-2.6.25/8250_davinci.patch @@ -0,0 +1,28 @@ +--- linux-2.6/drivers/serial/8250.c 2008-08-06 15:56:53.000000000 -0500 ++++ linux-2.6-vanilla/drivers/serial/8250.c 2008-08-07 12:24:29.000000000 -0500 +@@ -1867,7 +1867,6 @@ + } + + if (is_real_interrupt(up->port.irq)) { +- unsigned char iir1; + /* + * Test for UARTs that do not reassert THRE when the + * transmitter is idle and the interrupt has already +@@ -1881,7 +1880,7 @@ + wait_for_xmitr(up, UART_LSR_THRE); + serial_out_sync(up, UART_IER, UART_IER_THRI); + udelay(1); /* allow THRE to set */ +- iir1 = serial_in(up, UART_IIR); ++ serial_in(up, UART_IIR); + serial_out(up, UART_IER, 0); + serial_out_sync(up, UART_IER, UART_IER_THRI); + udelay(1); /* allow a working UART time to re-assert THRE */ +@@ -1894,7 +1893,7 @@ + * If the interrupt is not reasserted, setup a timer to + * kick the UART on a regular basis. + */ +- if (!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) { ++ if (iir & UART_IIR_NO_INT) { + pr_debug("ttyS%d - using backup timer\n", port->line); + up->timer.function = serial8250_backup_timeout; + up->timer.data = (unsigned long)up; |