linux-kernel - [PATCH v3 2/3] ACPI / OSL: Allow PCI to be disabled

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Date:   Mon, 10 Dec 2018 18:13:14 +0000
From:   Sinan Kaya <okaya@...nel.org>
To:     linux-acpi@...r.kernel.org
Cc:     Sinan Kaya <okaya@...nel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v3 2/3] ACPI / OSL: Allow PCI to be disabled

Getting ready to allow PCI to be disabled with ACPI enabled. Stub
out calls that depend on PCI.

Signed-off-by: Sinan Kaya <okaya@...nel.org>
---
 drivers/acpi/osl.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index b48874b8e1ea..0d3ed659cfe8 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -773,6 +773,7 @@ acpi_status
 acpi_os_read_pci_configuration(struct acpi_pci_id * pci_id, u32 reg,
 			       u64 *value, u32 width)
 {
+#ifdef CONFIG_PCI
 	int result, size;
 	u32 value32;
 
@@ -799,12 +800,16 @@ acpi_os_read_pci_configuration(struct acpi_pci_id * pci_id, u32 reg,
 	*value = value32;
 
 	return (result ? AE_ERROR : AE_OK);
+#else
+	return AE_SUPPORT;
+#endif
 }
 
 acpi_status
 acpi_os_write_pci_configuration(struct acpi_pci_id * pci_id, u32 reg,
 				u64 value, u32 width)
 {
+#ifdef CONFIG_PCI
 	int result, size;
 
 	switch (width) {
@@ -826,6 +831,9 @@ acpi_os_write_pci_configuration(struct acpi_pci_id * pci_id, u32 reg,
 				reg, size, value);
 
 	return (result ? AE_ERROR : AE_OK);
+#else
+	return AE_SUPPORT;
+#endif
 }
 
 static void acpi_os_execute_deferred(struct work_struct *work)
-- 
2.19.0