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spapr: Implement get_dt_compatible() callback

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For devices that cannot be statically initialized, implement a
get_dt_compatible() callback that allows us to ask the device for
the 'compatible' value.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200121152935.649898-3-stefanb@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Stefan Berger 2020-01-21 10:29:31 -05:00 committed by David Gibson
parent 3688d73b6e
commit 864674fa29
2 changed files with 10 additions and 2 deletions
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11
hw/ppc/spapr_vio.c
View File

@ -87,6 +87,7 @@ static int vio_make_devnode(SpaprVioDevice *dev,
SpaprVioDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); SpaprVioDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev);
int vdevice_off, node_off, ret; int vdevice_off, node_off, ret;
char *dt_name; char *dt_name;
const char *dt_compatible;
vdevice_off = fdt_path_offset(fdt, "/vdevice"); vdevice_off = fdt_path_offset(fdt, "/vdevice");
if (vdevice_off < 0) { if (vdevice_off < 0) {
@ -113,9 +114,15 @@ static int vio_make_devnode(SpaprVioDevice *dev,
} }
} }
if (pc->dt_compatible) { if (pc->get_dt_compatible) {
dt_compatible = pc->get_dt_compatible(dev);
} else {
dt_compatible = pc->dt_compatible;
}
if (dt_compatible) {
ret = fdt_setprop_string(fdt, node_off, "compatible", ret = fdt_setprop_string(fdt, node_off, "compatible",
pc->dt_compatible); dt_compatible);
if (ret < 0) { if (ret < 0) {
return ret; return ret;
} }

1
include/hw/ppc/spapr_vio.h
View File

@ -58,6 +58,7 @@ typedef struct SpaprVioDeviceClass {
void (*realize)(SpaprVioDevice *dev, Error **errp); void (*realize)(SpaprVioDevice *dev, Error **errp);
void (*reset)(SpaprVioDevice *dev); void (*reset)(SpaprVioDevice *dev);
int (*devnode)(SpaprVioDevice *dev, void *fdt, int node_off); int (*devnode)(SpaprVioDevice *dev, void *fdt, int node_off);
const char *(*get_dt_compatible)(SpaprVioDevice *dev);
} SpaprVioDeviceClass; } SpaprVioDeviceClass;
struct SpaprVioDevice { struct SpaprVioDevice {