[PATCH 001/001] UIO: allow binding uio_dmem_genirq to devices using command line options

From: Alfasys
Date: Sat Jan 15 2022 - 11:42:08 EST


Add an option to bind the uio_dmem_genirq driver to a given device
using command line options.
Make uio_dmem_genirq match uio_pdrv_genirq functionality added in
commit 05c3e0bb5629 ("UIO: allow binding uio_pdrv_genirq.c to devices

using command line option")

CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
CC: Damian Hobson-Garcia <dhobsong@xxxxxxxxxx>
Signed-off-by: Alfred Patriksson <alfred@xxxxxxxxxx>

---

git diff c9e6606c7fe92 #(tag: v5.16-rc8)
diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c
index 6b5cfa5b0673..7f6c9b594dd4 100644
--- a/drivers/uio/uio_dmem_genirq.c
+++ b/drivers/uio/uio_dmem_genirq.c
@@ -317,10 +317,13 @@ static const struct dev_pm_ops uio_dmem_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");
#endif

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