Merging upstream version 6.7.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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);