soc/intel: Replace config_of_path() with config_of_soc()

The previously provided device path made no difference, all
integrated PCI devices point back to the same chip_info
structure.

Change reduces the exposure of various SA_DEVFN_xx and
PCH_DEVFN_xx from (ugly) soc/pci_devs.h.

Change-Id: Ibf13645fdd3ef7fd3d5c8217bb24d7ede045c790
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35656
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/soc/intel/skylake/acpi.c b/src/soc/intel/skylake/acpi.c
index d67b502..de37341 100644
--- a/src/soc/intel/skylake/acpi.c
+++ b/src/soc/intel/skylake/acpi.c
@@ -172,7 +172,7 @@
 
 static void acpi_create_gnvs(global_nvs_t *gnvs)
 {
-	const struct soc_intel_skylake_config *config = config_of_path(PCH_DEVFN_LPC);
+	const struct soc_intel_skylake_config *config = config_of_soc();
 
 	/* Set unknown wake source */
 	gnvs->pm1i = -1;
@@ -232,7 +232,7 @@
 void acpi_fill_fadt(acpi_fadt_t *fadt)
 {
 	const uint16_t pmbase = ACPI_BASE_ADDRESS;
-	config_t *config = config_of_path(SA_DEVFN_ROOT);
+	config_t *config = config_of_soc();
 
 	/* Use ACPI 3.0 revision */
 	fadt->header.revision = get_acpi_table_revision(FADT);
@@ -503,7 +503,7 @@
 	int totalcores = dev_count_cpu();
 	int cores_per_package = get_cores_per_package();
 	int numcpus = totalcores/cores_per_package;
-	config_t *config = config_of_path(SA_DEVFN_ROOT);
+	config_t *config = config_of_soc();
 	int is_s0ix_enable = config->s0ix_enable;
 
 	printk(BIOS_DEBUG, "Found %d CPU(s) with %d core(s) each.\n",
@@ -674,7 +674,7 @@
 /* Save wake source information for calculating ACPI _SWS values */
 int soc_fill_acpi_wake(uint32_t *pm1, uint32_t **gpe0)
 {
-	const struct soc_intel_skylake_config *config = config_of_path(PCH_DEVFN_LPC);
+	const struct soc_intel_skylake_config *config = config_of_soc();
 	struct chipset_power_state *ps;
 	static uint32_t gpe0_sts[GPE0_REG_MAX];
 	uint32_t pm1_en;