device/device.h: Rename busses for clarity

This renames bus to upstream and link_list to downstream.

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I80a81b6b8606e450ff180add9439481ec28c2420
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78330
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

5 files changed, 9 insertions, 9 deletions

diff --git a/src/soc/intel/common/block/acpi/pep.c b/src/soc/intel/common/block/acpi/pep.c
index 39f95425db..a6ae454d06 100644
--- a/src/soc/intel/common/block/acpi/pep.c
+++ b/src/soc/intel/common/block/acpi/pep.c
@@ -144,7 +144,7 @@ static enum acpi_device_sleep_states get_min_sleep_state(
 
 	case DEVICE_PATH_PCI:
 		/* skip external buses*/
-		if ((dev->bus->secondary != 0) || (!states_arr))
+		if ((dev->upstream->secondary != 0) || (!states_arr))
 			return ACPI_DEVICE_SLEEP_NONE;
 		for (size_t i = 0; i < size; i++)
 			if (states_arr[i].pci_dev == dev->path.pci.devfn)
diff --git a/src/soc/intel/common/block/lpc/lpc.c b/src/soc/intel/common/block/lpc/lpc.c
index 994ef9bcb8..dbd982b593 100644
--- a/src/soc/intel/common/block/lpc/lpc.c
+++ b/src/soc/intel/common/block/lpc/lpc.c
@@ -102,10 +102,10 @@ static void pch_lpc_set_child_resources(struct device *dev)
 {
 	struct device *child;
 
-	if (!dev->link_list)
+	if (!dev->downstream)
 		return;
 
-	for (child = dev->link_list->children; child; child = child->sibling)
+	for (child = dev->downstream->children; child; child = child->sibling)
 		pch_lpc_loop_resources(child);
 }
 
diff --git a/src/soc/intel/common/block/pcie/rtd3/rtd3.c b/src/soc/intel/common/block/pcie/rtd3/rtd3.c
index 39c82b11f2..3a7c8b4afc 100644
--- a/src/soc/intel/common/block/pcie/rtd3/rtd3.c
+++ b/src/soc/intel/common/block/pcie/rtd3/rtd3.c
@@ -140,7 +140,7 @@ pcie_rtd3_acpi_method_on(unsigned int pcie_rp,
 			 enum pcie_rp_type rp_type,
 			 const struct device *dev)
 {
-	const struct device *parent = dev->bus->dev;
+	const struct device *parent = dev->upstream->dev;
 
 	acpigen_write_method_serialized("_ON", 0);
 
@@ -224,7 +224,7 @@ pcie_rtd3_acpi_method_off(int pcie_rp,
 			  const struct device *dev)
 
 {
-	const struct device *parent = dev->bus->dev;
+	const struct device *parent = dev->upstream->dev;
 
 	acpigen_write_method_serialized("_OFF", 0);
 
@@ -385,7 +385,7 @@ static void pcie_rtd3_acpi_fill_ssdt(const struct device *dev)
 
 	const struct soc_intel_common_block_pcie_rtd3_config *config = config_of(dev);
 	static const char *const power_res_states[] = {"_PR0"};
-	const struct device *parent = dev->bus->dev;
+	const struct device *parent = dev->upstream->dev;
 	const char *scope = acpi_device_path(parent);
 	const struct opregion opregion = OPREGION("PXCS", PCI_CONFIG, 0, 0xff);
 	const struct fieldlist fieldlist[] = {
diff --git a/src/soc/intel/common/block/usb4/pcie.c b/src/soc/intel/common/block/usb4/pcie.c
index f2414ccb12..c066647d1a 100644
--- a/src/soc/intel/common/block/usb4/pcie.c
+++ b/src/soc/intel/common/block/usb4/pcie.c
@@ -19,7 +19,7 @@ static void usb4_pcie_acpi_fill_ssdt(const struct device *dev)
 	int port_id;
 
 	/* Get parent PCI device */
-	parent = dev->bus->dev;
+	parent = dev->upstream->dev;
 	if (!parent) {
 		printk(BIOS_ERR, "%s: Unable to find parent device\n", __func__);
 		return;
diff --git a/src/soc/intel/common/block/xhci/xhci.c b/src/soc/intel/common/block/xhci/xhci.c
index ff6fbf0957..03ed578e27 100644
--- a/src/soc/intel/common/block/xhci/xhci.c
+++ b/src/soc/intel/common/block/xhci/xhci.c
@@ -92,8 +92,8 @@ void usb_xhci_disable_unused(bool (*ext_usb_xhci_en_cb)(unsigned int port_type,
 		return;
 	}
 
-	while ((hub = dev_bus_each_child(xhci->link_list, hub)) != NULL) {
-		while ((port = dev_bus_each_child(hub->link_list, port)) != NULL) {
+	while ((hub = dev_bus_each_child(xhci->downstream, hub)) != NULL) {
+		while ((port = dev_bus_each_child(hub->downstream, port)) != NULL) {
 			enable = true;
 			config = config_of(port);
 			if (config->type == UPC_TYPE_INTERNAL) {