Commit 3ddcf991 authored by Peter Colberg's avatar Peter Colberg Committed by Xu Yilun
Browse files

fpga: dfl: store platform device name in feature device data 



Add a new member, pdev_name, to the structure dfl_feature_dev_data that
holds the platform device name for convenience. A subsequent commit will
completely destroy the platform device during port release, after which
fdata->dev is unavailable, while fdata itself remains available.

Signed-off-by: default avatarPeter Colberg <peter.colberg@intel.com>
Reviewed-by: default avatarMatthew Gerlach <matthew.gerlach@linux.intel.com>
Reviewed-by: default avatarBasheer Ahmed Muddebihal <basheer.ahmed.muddebihal@linux.intel.com>
Acked-by: default avatarXu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20241120011035.230574-14-peter.colberg@intel.com


Signed-off-by: default avatarXu Yilun <yilun.xu@linux.intel.com>
parent 7b15c411

drivers/fpga/dfl.c

+2 −1
Original line number Diff line number Diff line
@@ -160,7 +160,7 @@ struct dfl_fpga_port_ops *dfl_fpga_port_ops_get(struct dfl_feature_dev_data *fda 


	list_for_each_entry(ops, &dfl_port_ops_list, node) {

		/* match port_ops using the name of platform device */

		if (!strcmp(fdata->dev->name, ops->name)) {

		if (!strcmp(fdata->pdev_name, ops->name)) {

			if (!try_module_get(ops->owner))

				ops = NULL;

			goto done;
@@ -768,6 +768,7 @@ binfo_create_feature_dev_data(struct build_feature_devs_info *binfo) 


	fdata->dev = fdev;

	fdata->type = type;

	fdata->pdev_name = dfl_devs[type].name;

	fdata->num = binfo->feature_num;

	fdata->dfl_cdev = binfo->cdev;

	fdata->id = FEATURE_DEV_ID_UNUSED;

drivers/fpga/dfl.h

+2 −0
Original line number Diff line number Diff line
@@ -309,6 +309,7 @@ struct dfl_feature { 
 * @lock: mutex to protect feature dev data.

 * @dev: ptr to the feature's platform device linked with this structure.

 * @type: type of DFL FIU for the feature dev. See enum dfl_id_type.

 * @pdev_name: platform device name for the feature dev.

 * @dfl_cdev: ptr to container device.

 * @id: id used for the feature device.

 * @disable_count: count for port disable.
@@ -325,6 +326,7 @@ struct dfl_feature_dev_data { 
	struct mutex lock;

	struct platform_device *dev;

	enum dfl_id_type type;

	const char *pdev_name;

	struct dfl_fpga_cdev *dfl_cdev;

	int id;

	unsigned int disable_count;