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Diffstat (limited to 'drivers/cdx/cdx.c')
-rw-r--r--drivers/cdx/cdx.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/cdx/cdx.c b/drivers/cdx/cdx.c
index b74d76afcc..236d381dc5 100644
--- a/drivers/cdx/cdx.c
+++ b/drivers/cdx/cdx.c
@@ -56,6 +56,7 @@
*/
#include <linux/init.h>
+#include <linux/irqdomain.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/of_device.h>
@@ -302,8 +303,19 @@ static int cdx_probe(struct device *dev)
{
struct cdx_driver *cdx_drv = to_cdx_driver(dev->driver);
struct cdx_device *cdx_dev = to_cdx_device(dev);
+ struct cdx_controller *cdx = cdx_dev->cdx;
int error;
+ /*
+ * Setup MSI device data so that generic MSI alloc/free can
+ * be used by the device driver.
+ */
+ if (cdx->msi_domain) {
+ error = msi_setup_device_data(&cdx_dev->dev);
+ if (error)
+ return error;
+ }
+
error = cdx_drv->probe(cdx_dev);
if (error) {
dev_err_probe(dev, error, "%s failed\n", __func__);
@@ -787,6 +799,7 @@ int cdx_device_add(struct cdx_dev_params *dev_params)
/* Populate CDX dev params */
cdx_dev->req_id = dev_params->req_id;
+ cdx_dev->msi_dev_id = dev_params->msi_dev_id;
cdx_dev->vendor = dev_params->vendor;
cdx_dev->device = dev_params->device;
cdx_dev->subsystem_vendor = dev_params->subsys_vendor;
@@ -804,12 +817,19 @@ int cdx_device_add(struct cdx_dev_params *dev_params)
cdx_dev->dev.bus = &cdx_bus_type;
cdx_dev->dev.dma_mask = &cdx_dev->dma_mask;
cdx_dev->dev.release = cdx_device_release;
+ cdx_dev->msi_write_pending = false;
+ mutex_init(&cdx_dev->irqchip_lock);
/* Set Name */
dev_set_name(&cdx_dev->dev, "cdx-%02x:%02x",
((cdx->id << CDX_CONTROLLER_ID_SHIFT) | (cdx_dev->bus_num & CDX_BUS_NUM_MASK)),
cdx_dev->dev_num);
+ if (cdx->msi_domain) {
+ cdx_dev->num_msi = dev_params->num_msi;
+ dev_set_msi_domain(&cdx_dev->dev, cdx->msi_domain);
+ }
+
ret = device_add(&cdx_dev->dev);
if (ret) {
dev_err(&cdx_dev->dev,