soc/intel: Move pmc_soc_set_afterg3_en() to pmutil.c

Commit 2c26108208e4aa48de21be576ab6cad9286d7934 moved this function to
pmutil.c for Tiger Lake. Do this to all other platforms for consistency.
For Skylake, __SIMPLE_DEVICE__ preprocessor guards are no longer needed.

With this change, pmc.c is only needed in ramstage. Adjust Makefile.inc
accordingly, and drop ENV_RAMSTAGE guards from Skylake.

Change-Id: I424eb359c898f155659d085b888410b6bb58b9ed
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52464
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
diff --git a/src/soc/intel/skylake/Makefile.inc b/src/soc/intel/skylake/Makefile.inc
index 1a4f740..8dbadcc 100644
--- a/src/soc/intel/skylake/Makefile.inc
+++ b/src/soc/intel/skylake/Makefile.inc
@@ -32,7 +32,6 @@
 romstage-y += gspi.c
 romstage-y += i2c.c
 romstage-y += me.c
-romstage-y += pmc.c
 romstage-y += pmutil.c
 romstage-y += reset.c
 romstage-y += spi.c
@@ -66,7 +65,6 @@
 smm-y += elog.c
 smm-y += gpio.c
 smm-y += p2sb.c
-smm-y += pmc.c
 smm-y += pmutil.c
 smm-y += smihandler.c
 smm-y += uart.c
diff --git a/src/soc/intel/skylake/pmc.c b/src/soc/intel/skylake/pmc.c
index c70710f..e797b8f 100644
--- a/src/soc/intel/skylake/pmc.c
+++ b/src/soc/intel/skylake/pmc.c
@@ -14,28 +14,6 @@
 
 #include "chip.h"
 
-/*
- * Set which power state system will be after reapplying
- * the power (from G3 State)
- */
-void pmc_soc_set_afterg3_en(const bool on)
-{
-	uint8_t reg8;
-#if defined(__SIMPLE_DEVICE__)
-	const pci_devfn_t dev = PCH_DEV_PMC;
-#else
-	const struct device *const dev = PCH_DEV_PMC;
-#endif
-
-	reg8 = pci_read_config8(dev, GEN_PMCON_B);
-	if (on)
-		reg8 &= ~SLEEP_AFTER_POWER_FAIL;
-	else
-		reg8 |= SLEEP_AFTER_POWER_FAIL;
-	pci_write_config8(dev, GEN_PMCON_B, reg8);
-}
-
-#if ENV_RAMSTAGE
 /* Fill up PMC resource structure */
 int pmc_soc_get_resources(struct pmc_resource_config *cfg)
 {
@@ -166,5 +144,3 @@
 
 BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT, pm1_handle_wake_pin, NULL);
 BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_EXIT, pm1_handle_wake_pin, NULL);
-
-#endif
diff --git a/src/soc/intel/skylake/pmutil.c b/src/soc/intel/skylake/pmutil.c
index 35862c2..fe26ebf 100644
--- a/src/soc/intel/skylake/pmutil.c
+++ b/src/soc/intel/skylake/pmutil.c
@@ -248,3 +248,20 @@
 {
 	return ACPI_BASE_ADDRESS;
 }
+
+/*
+ * Set which power state system will be after reapplying
+ * the power (from G3 State)
+ */
+void pmc_soc_set_afterg3_en(const bool on)
+{
+	uint8_t reg8;
+	const pci_devfn_t dev = PCH_DEV_PMC;
+
+	reg8 = pci_read_config8(dev, GEN_PMCON_B);
+	if (on)
+		reg8 &= ~SLEEP_AFTER_POWER_FAIL;
+	else
+		reg8 |= SLEEP_AFTER_POWER_FAIL;
+	pci_write_config8(dev, GEN_PMCON_B, reg8);
+}