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>
diff --git a/src/cpu/intel/haswell/haswell_init.c b/src/cpu/intel/haswell/haswell_init.c
index 83d847cb..86dcbea 100644
--- a/src/cpu/intel/haswell/haswell_init.c
+++ b/src/cpu/intel/haswell/haswell_init.c
@@ -449,7 +449,7 @@
 static void configure_thermal_target(struct device *dev)
 {
 	/* Make sure your devicetree has the cpu_cluster below chip cpu/intel/haswell! */
-	struct cpu_intel_haswell_config *conf = dev->bus->dev->chip_info;
+	struct cpu_intel_haswell_config *conf = dev->upstream->dev->chip_info;
 	msr_t msr;
 
 	/* Set TCC activation offset if supported */
diff --git a/src/cpu/intel/model_2065x/model_2065x_init.c b/src/cpu/intel/model_2065x/model_2065x_init.c
index 3497ae0..cb74854 100644
--- a/src/cpu/intel/model_2065x/model_2065x_init.c
+++ b/src/cpu/intel/model_2065x/model_2065x_init.c
@@ -22,7 +22,7 @@
 
 static void configure_thermal_target(struct device *dev)
 {
-	struct cpu_intel_model_2065x_config *conf = dev->bus->dev->chip_info;
+	struct cpu_intel_model_2065x_config *conf = dev->upstream->dev->chip_info;
 	msr_t msr;
 
 	/* Set TCC activation offset if supported */
diff --git a/src/cpu/intel/model_206ax/model_206ax_init.c b/src/cpu/intel/model_206ax/model_206ax_init.c
index 372989c..d9340ff 100644
--- a/src/cpu/intel/model_206ax/model_206ax_init.c
+++ b/src/cpu/intel/model_206ax/model_206ax_init.c
@@ -223,7 +223,7 @@
 
 static void configure_thermal_target(struct device *dev)
 {
-	struct cpu_intel_model_206ax_config *conf = dev->bus->dev->chip_info;
+	struct cpu_intel_model_206ax_config *conf = dev->upstream->dev->chip_info;
 	msr_t msr;
 
 	if (boot_cpu()) {