serial: xilinx: Use platform_get_irq to get irq description structure

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commit 5c90c07b98 upstream.

For systems with CONFIG_SERIAL_OF_PLATFORM=y and device_type =
"serial"; property in DT of_serial.c driver maps and unmaps IRQ (because
driver probe fails). Then a driver is called but irq mapping is not
created that's why driver is failing again in again on request_irq().
Based on this use platform_get_irq() instead of platform_get_resource()
which is doing irq_desc allocation and driver itself can request IRQ.

Fix both xilinx serial drivers in the tree.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

...

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Michal Simek 2015-04-13 16:34:21 +02:00 • committed by Luis Henriques

parent fd1d957101

commit 2c3ab9be3a

2 changed files with 12 additions and 11 deletions

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11

drivers/tty/serial/uartlite.c

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12

drivers/tty/serial/xilinx_uartps.c

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