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Commit 0628c4df authored by Eric Auger's avatar Eric Auger Committed by Alex Williamson
Browse files

vfio: platform: add compat in vfio_platform_device 



Let's retrieve the compatibility string on probe and store it
in the vfio_platform_device struct

Signed-off-by: default avatarEric Auger <eric.auger@linaro.org>
Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent 680742f6

drivers/vfio/platform/vfio_platform_common.c

+8 −7
Original line number Diff line number Diff line
@@ -41,16 +41,11 @@ static const struct vfio_platform_reset_combo reset_lookup_table[] = { 
static void vfio_platform_get_reset(struct vfio_platform_device *vdev,

				    struct device *dev)

{

	const char *compat;

	int (*reset)(struct vfio_platform_device *);

	int ret, i;



	ret = device_property_read_string(dev, "compatible", &compat);

	if (ret)

		return;

	int i;



	for (i = 0 ; i < ARRAY_SIZE(reset_lookup_table); i++) {

		if (!strcmp(reset_lookup_table[i].compat, compat)) {

		if (!strcmp(reset_lookup_table[i].compat, vdev->compat)) {

			request_module(reset_lookup_table[i].module_name);

			reset = __symbol_get(

				reset_lookup_table[i].reset_function_name);
@@ -544,6 +539,12 @@ int vfio_platform_probe_common(struct vfio_platform_device *vdev, 
	if (!vdev)

		return -EINVAL;



	ret = device_property_read_string(dev, "compatible", &vdev->compat);

	if (ret) {

		pr_err("VFIO: cannot retrieve compat for %s\n", vdev->name);

		return -EINVAL;

	}



	group = iommu_group_get(dev);

	if (!group) {

		pr_err("VFIO: No IOMMU group for device %s\n", vdev->name);

drivers/vfio/platform/vfio_platform_private.h

+1 −0
Original line number Diff line number Diff line
@@ -57,6 +57,7 @@ struct vfio_platform_device { 
	int				refcnt;

	struct mutex			igate;

	struct module			*parent_module;

	const char			*compat;



	/*

	 * These fields should be filled by the bus specific binder