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serial/arc-uart: split probe from probe_earlyprintk

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This is in preparation for devicetree based probing, where earlyprintk
won't have access to DT serial aliases which the normal probe would
absolutely rely on.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: linux-serial@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vineet Gupta 2013-01-11 11:50:21 +05:30 committed by Greg Kroah-Hartman
parent 026bb292c4
commit e163d1f42b
1 changed files with 11 additions and 10 deletions
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21
drivers/tty/serial/arc_uart.c
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@ -651,7 +651,7 @@ static struct __initdata console arc_early_serial_console = {
.index = -1
};
static int arc_serial_probe_earlyprintk(struct platform_device *pdev)
static int __init arc_serial_probe_earlyprintk(struct platform_device *pdev)
{
int dev_id = pdev->id < 0 ? 0 : pdev->id;
int rc;
@ -667,20 +667,12 @@ static int arc_serial_probe_earlyprintk(struct platform_device *pdev)
register_console(&arc_early_serial_console);
return 0;
}
#else
static int arc_serial_probe_earlyprintk(struct platform_device *pdev)
{
return -ENODEV;
}
#endif /* CONFIG_SERIAL_ARC_CONSOLE */
static int arc_serial_probe(struct platform_device *pdev)
{
int rc, dev_id;
if (is_early_platform_device(pdev))
return arc_serial_probe_earlyprintk(pdev);
dev_id = pdev->id < 0 ? 0 : pdev->id;
rc = arc_uart_init_one(pdev, dev_id);
if (rc)
@ -706,6 +698,15 @@ static struct platform_driver arc_platform_driver = {
};
#ifdef CONFIG_SERIAL_ARC_CONSOLE
static struct platform_driver early_arc_platform_driver = {
.probe = arc_serial_probe_earlyprintk,
.remove = arc_serial_remove,
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
},
};
/*
* Register an early platform driver of "earlyprintk" class.
* ARCH platform code installs the driver and probes the early devices
@ -713,7 +714,7 @@ static struct platform_driver arc_platform_driver = {
* or it could be done independently, for all "earlyprintk" class drivers.
* [see arch/arc/plat-arcfpga/platform.c]
*/
early_platform_init("earlyprintk", &arc_platform_driver);
early_platform_init("earlyprintk", &early_arc_platform_driver);
#endif /* CONFIG_SERIAL_ARC_CONSOLE */