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authorPavel Machek <pavel@ucw.cz>2013-06-18 22:35:58 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-06-18 15:44:59 -0700
commit05c3e0bb5629b897b0459e4bfb1b93d729033b99 (patch)
treef2d8af6ef8163661b624ca20141e0836e7098650 /drivers/uio
parent4debfe409b6e550032bfef9733e9f6f7c5613617 (diff)
downloadop-kernel-dev-05c3e0bb5629b897b0459e4bfb1b93d729033b99.zip
op-kernel-dev-05c3e0bb5629b897b0459e4bfb1b93d729033b99.tar.gz
UIO: allow binding uio_pdrv_genirq.c to devices using command line option
This adds ability to bind uio driver to given open firmware device using command line option. Thus, userspace driver can be developed and used without modifying the kernel. Signed-off-by: Pavel Machek <pavel@denx.de> Tested-by: Detlev Zundel <dzu@denx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uio')
-rw-r--r--drivers/uio/uio_pdrv_genirq.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c
index c122bca..960809f 100644
--- a/drivers/uio/uio_pdrv_genirq.c
+++ b/drivers/uio/uio_pdrv_genirq.c
@@ -263,10 +263,14 @@ static const struct dev_pm_ops uio_pdrv_genirq_dev_pm_ops = {
};
#ifdef CONFIG_OF
-static const struct of_device_id uio_of_genirq_match[] = {
- { /* empty for now */ },
+static struct of_device_id uio_of_genirq_match[] = {
+ { /* This is filled with module_parm */ },
+ { /* Sentinel */ },
};
MODULE_DEVICE_TABLE(of, uio_of_genirq_match);
+
+module_param_string(of_id, uio_of_genirq_match[0].compatible, 128, 0);
+MODULE_PARM_DESC(of_id, "Openfirmware id of the device to be handled by uio");
#else
# define uio_of_genirq_match NULL
#endif
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