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path: root/drivers/thunderbolt/switch.c
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Diffstat (limited to 'drivers/thunderbolt/switch.c')
-rw-r--r--drivers/thunderbolt/switch.c52
1 files changed, 41 insertions, 11 deletions
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 5668a44e0653..410bf1bceeee 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -364,12 +364,14 @@ static int tb_switch_nvm_add(struct tb_switch *sw)
nvm->active = nvm_dev;
}
- nvm_dev = register_nvmem(sw, nvm->id, NVM_MAX_SIZE, false);
- if (IS_ERR(nvm_dev)) {
- ret = PTR_ERR(nvm_dev);
- goto err_nvm_active;
+ if (!sw->no_nvm_upgrade) {
+ nvm_dev = register_nvmem(sw, nvm->id, NVM_MAX_SIZE, false);
+ if (IS_ERR(nvm_dev)) {
+ ret = PTR_ERR(nvm_dev);
+ goto err_nvm_active;
+ }
+ nvm->non_active = nvm_dev;
}
- nvm->non_active = nvm_dev;
sw->nvm = nvm;
return 0;
@@ -398,7 +400,8 @@ static void tb_switch_nvm_remove(struct tb_switch *sw)
if (!nvm->authenticating)
nvm_clear_auth_status(sw);
- nvmem_unregister(nvm->non_active);
+ if (nvm->non_active)
+ nvmem_unregister(nvm->non_active);
if (nvm->active)
nvmem_unregister(nvm->active);
ida_simple_remove(&nvm_ida, nvm->id);
@@ -611,8 +614,14 @@ static int tb_init_port(struct tb_port *port)
int cap;
res = tb_port_read(port, &port->config, TB_CFG_PORT, 0, 8);
- if (res)
+ if (res) {
+ if (res == -ENODEV) {
+ tb_dbg(port->sw->tb, " Port %d: not implemented\n",
+ port->port);
+ return 0;
+ }
return res;
+ }
/* Port 0 is the switch itself and has no PHY. */
if (port->config.type == TB_TYPE_PORT && port->port != 0) {
@@ -1331,14 +1340,29 @@ static umode_t switch_attr_is_visible(struct kobject *kobj,
struct device *dev = container_of(kobj, struct device, kobj);
struct tb_switch *sw = tb_to_switch(dev);
- if (attr == &dev_attr_key.attr) {
+ if (attr == &dev_attr_device.attr) {
+ if (!sw->device)
+ return 0;
+ } else if (attr == &dev_attr_device_name.attr) {
+ if (!sw->device_name)
+ return 0;
+ } else if (attr == &dev_attr_vendor.attr) {
+ if (!sw->vendor)
+ return 0;
+ } else if (attr == &dev_attr_vendor_name.attr) {
+ if (!sw->vendor_name)
+ return 0;
+ } else if (attr == &dev_attr_key.attr) {
if (tb_route(sw) &&
sw->tb->security_level == TB_SECURITY_SECURE &&
sw->security_level == TB_SECURITY_SECURE)
return attr->mode;
return 0;
- } else if (attr == &dev_attr_nvm_authenticate.attr ||
- attr == &dev_attr_nvm_version.attr) {
+ } else if (attr == &dev_attr_nvm_authenticate.attr) {
+ if (sw->dma_port && !sw->no_nvm_upgrade)
+ return attr->mode;
+ return 0;
+ } else if (attr == &dev_attr_nvm_version.attr) {
if (sw->dma_port)
return attr->mode;
return 0;
@@ -1446,6 +1470,8 @@ static int tb_switch_get_generation(struct tb_switch *sw)
case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_BRIDGE:
case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_BRIDGE:
+ case PCI_DEVICE_ID_INTEL_ICL_NHI0:
+ case PCI_DEVICE_ID_INTEL_ICL_NHI1:
return 3;
default:
@@ -1689,13 +1715,17 @@ static int tb_switch_add_dma_port(struct tb_switch *sw)
break;
}
- if (sw->no_nvm_upgrade)
+ /* Root switch DMA port requires running firmware */
+ if (!tb_route(sw) && sw->config.enabled)
return 0;
sw->dma_port = dma_port_alloc(sw);
if (!sw->dma_port)
return 0;
+ if (sw->no_nvm_upgrade)
+ return 0;
+
/*
* Check status of the previous flash authentication. If there
* is one we need to power cycle the switch in any case to make