[PATCH v5 6/6] fsi: Use of_match_table for bus matching if specified
From: Eddie James <eajames@linux.ibm.com>
Date: 2023-02-21 21:27:12
Also in:
linux-devicetree, lkml
Subsystem:
fsi subsystem, the rest · Maintainers:
Eddie James, Linus Torvalds
Since we have two scom drivers, use the standard of matching if the driver specifies a table so that the right devices go to the right driver. Signed-off-by: Eddie James <eajames@linux.ibm.com> --- drivers/fsi/fsi-core.c | 11 +++++++++-- drivers/fsi/fsi-scom.c | 8 ++++++++ 2 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
index b77013b9d8a7..ca4a9634fbc3 100644
--- a/drivers/fsi/fsi-core.c
+++ b/drivers/fsi/fsi-core.c@@ -16,6 +16,7 @@ #include <linux/idr.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/of_device.h> #include <linux/slab.h> #include <linux/bitops.h> #include <linux/cdev.h>
@@ -1375,8 +1376,14 @@ static int fsi_bus_match(struct device *dev, struct device_driver *drv) if (id->engine_type != fsi_dev->engine_type) continue; if (id->version == FSI_VERSION_ANY || - id->version == fsi_dev->version) - return 1; + id->version == fsi_dev->version) { + if (drv->of_match_table) { + if (of_driver_match_device(dev, drv)) + return 1; + } else { + return 1; + } + } } return 0;
diff --git a/drivers/fsi/fsi-scom.c b/drivers/fsi/fsi-scom.c
index bcb756dc9866..61dbda9dbe2b 100644
--- a/drivers/fsi/fsi-scom.c
+++ b/drivers/fsi/fsi-scom.c@@ -10,6 +10,7 @@ #include <linux/cdev.h> #include <linux/delay.h> #include <linux/fs.h> +#include <linux/mod_devicetable.h> #include <linux/uaccess.h> #include <linux/slab.h> #include <linux/list.h>
@@ -587,6 +588,12 @@ static int scom_remove(struct device *dev) return 0; } +static const struct of_device_id scom_of_ids[] = { + { .compatible = "ibm,fsi2pib" }, + { } +}; +MODULE_DEVICE_TABLE(of, scom_of_ids); + static const struct fsi_device_id scom_ids[] = { { .engine_type = FSI_ENGID_SCOM,
@@ -600,6 +607,7 @@ static struct fsi_driver scom_drv = { .drv = { .name = "scom", .bus = &fsi_bus_type, + .of_match_table = scom_of_ids, .probe = scom_probe, .remove = scom_remove, }
--
2.31.1