Merge tag 'acpi-5.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These add ACPI support to the PCI VMD driver, improve suspend-to-idle
  support for AMD platforms and update documentation.

  Specifics:

   - Add ACPI support to the PCI VMD driver (Rafael Wysocki)

   - Rearrange suspend-to-idle support code to reflect the platform
     firmware expectations on some AMD platforms (Mario Limonciello)

   - Make SSDT overlays documentation follow the code documented by it
     more closely (Andy Shevchenko)"

* tag 'acpi-5.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: PM: s2idle: Run both AMD and Microsoft methods if both are supported
  Documentation: ACPI: Align the SSDT overlays file with the code
  PCI: VMD: ACPI: Make ACPI companion lookup work for VMD bus

1 files changed, 39 insertions, 28 deletions

diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c
index 3a308461246a..bd92b549fd5a 100644
--- a/drivers/acpi/x86/s2idle.c
+++ b/drivers/acpi/x86/s2idle.c
@@ -449,25 +449,30 @@ int acpi_s2idle_prepare_late(void)
 	if (pm_debug_messages_on)
 		lpi_check_constraints();
 
-	if (lps0_dsm_func_mask_microsoft > 0) {
+	/* Screen off */
+	if (lps0_dsm_func_mask > 0)
+		acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
+					ACPI_LPS0_SCREEN_OFF_AMD :
+					ACPI_LPS0_SCREEN_OFF,
+					lps0_dsm_func_mask, lps0_dsm_guid);
+
+	if (lps0_dsm_func_mask_microsoft > 0)
 		acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF,
 				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_ENTRY,
-				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+
+	/* LPS0 entry */
+	if (lps0_dsm_func_mask > 0)
+		acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
+					ACPI_LPS0_ENTRY_AMD :
+					ACPI_LPS0_ENTRY,
+					lps0_dsm_func_mask, lps0_dsm_guid);
+	if (lps0_dsm_func_mask_microsoft > 0) {
 		acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY,
 				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
-	} else if (acpi_s2idle_vendor_amd()) {
-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF_AMD,
-				lps0_dsm_func_mask, lps0_dsm_guid);
-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY_AMD,
-				lps0_dsm_func_mask, lps0_dsm_guid);
-	} else {
-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF,
-				lps0_dsm_func_mask, lps0_dsm_guid);
-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY,
-				lps0_dsm_func_mask, lps0_dsm_guid);
+		/* modern standby entry */
+		acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_ENTRY,
+				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
 	}
-
 	return 0;
 }
 
@@ -476,24 +481,30 @@ void acpi_s2idle_restore_early(void)
 	if (!lps0_device_handle || sleep_no_lps0)
 		return;
 
-	if (lps0_dsm_func_mask_microsoft > 0) {
-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT,
-				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+	/* Modern standby exit */
+	if (lps0_dsm_func_mask_microsoft > 0)
 		acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_EXIT,
 				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON,
-				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
-	} else if (acpi_s2idle_vendor_amd()) {
-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT_AMD,
-				lps0_dsm_func_mask, lps0_dsm_guid);
-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON_AMD,
-				lps0_dsm_func_mask, lps0_dsm_guid);
-	} else {
+
+	/* LPS0 exit */
+	if (lps0_dsm_func_mask > 0)
+		acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
+					ACPI_LPS0_EXIT_AMD :
+					ACPI_LPS0_EXIT,
+					lps0_dsm_func_mask, lps0_dsm_guid);
+	if (lps0_dsm_func_mask_microsoft > 0)
 		acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT,
-				lps0_dsm_func_mask, lps0_dsm_guid);
+				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+
+	/* Screen on */
+	if (lps0_dsm_func_mask_microsoft > 0)
 		acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON,
-				lps0_dsm_func_mask, lps0_dsm_guid);
-	}
+				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+	if (lps0_dsm_func_mask > 0)
+		acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
+					ACPI_LPS0_SCREEN_ON_AMD :
+					ACPI_LPS0_SCREEN_ON,
+					lps0_dsm_func_mask, lps0_dsm_guid);
 }
 
 static const struct platform_s2idle_ops acpi_s2idle_ops_lps0 = {