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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:35:05 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:39:31 +0000
commit85c675d0d09a45a135bddd15d7b385f8758c32fb (patch)
tree76267dbc9b9a130337be3640948fe397b04ac629 /drivers/cdx/controller/cdx_controller.c
parentAdding upstream version 6.6.15. (diff)
downloadlinux-85c675d0d09a45a135bddd15d7b385f8758c32fb.tar.xz
linux-85c675d0d09a45a135bddd15d7b385f8758c32fb.zip
Adding upstream version 6.7.7.upstream/6.7.7
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/cdx/controller/cdx_controller.c')
-rw-r--r--drivers/cdx/controller/cdx_controller.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/cdx/controller/cdx_controller.c b/drivers/cdx/controller/cdx_controller.c
index bb4ae7970e..85fe4b1c4e 100644
--- a/drivers/cdx/controller/cdx_controller.c
+++ b/drivers/cdx/controller/cdx_controller.c
@@ -33,6 +33,16 @@ static const struct cdx_mcdi_ops mcdi_ops = {
.mcdi_request = cdx_mcdi_request,
};
+static int cdx_bus_enable(struct cdx_controller *cdx, u8 bus_num)
+{
+ return cdx_mcdi_bus_enable(cdx->priv, bus_num);
+}
+
+static int cdx_bus_disable(struct cdx_controller *cdx, u8 bus_num)
+{
+ return cdx_mcdi_bus_disable(cdx->priv, bus_num);
+}
+
void cdx_rpmsg_post_probe(struct cdx_controller *cdx)
{
/* Register CDX controller with CDX bus driver */
@@ -56,6 +66,10 @@ static int cdx_configure_device(struct cdx_controller *cdx,
case CDX_DEV_RESET_CONF:
ret = cdx_mcdi_reset_device(cdx->priv, bus_num, dev_num);
break;
+ case CDX_DEV_BUS_MASTER_CONF:
+ ret = cdx_mcdi_bus_master_enable(cdx->priv, bus_num, dev_num,
+ dev_config->bus_master_enable);
+ break;
default:
ret = -EINVAL;
}
@@ -79,8 +93,14 @@ static int cdx_scan_devices(struct cdx_controller *cdx)
num_cdx_bus = (u8)ret;
for (bus_num = 0; bus_num < num_cdx_bus; bus_num++) {
+ struct device *bus_dev;
u8 num_cdx_dev;
+ /* Add the bus on cdx subsystem */
+ bus_dev = cdx_bus_add(cdx, bus_num);
+ if (!bus_dev)
+ continue;
+
/* MCDI FW Read: Fetch the number of devices present */
ret = cdx_mcdi_get_num_devs(cdx_mcdi, bus_num);
if (ret < 0) {
@@ -103,6 +123,7 @@ static int cdx_scan_devices(struct cdx_controller *cdx)
continue;
}
dev_params.cdx = cdx;
+ dev_params.parent = bus_dev;
/* Add the device to the cdx bus */
ret = cdx_device_add(&dev_params);
@@ -121,6 +142,8 @@ static int cdx_scan_devices(struct cdx_controller *cdx)
}
static struct cdx_ops cdx_ops = {
+ .bus_enable = cdx_bus_enable,
+ .bus_disable = cdx_bus_disable,
.scan = cdx_scan_devices,
.dev_configure = cdx_configure_device,
};
@@ -229,3 +252,4 @@ module_exit(cdx_controller_exit);
MODULE_AUTHOR("AMD Inc.");
MODULE_DESCRIPTION("CDX controller for AMD devices");
MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(CDX_BUS_CONTROLLER);