Signed-off-by: David E. Box <[email protected]>
---
arch/x86/Kconfig | 6 ++++++
arch/x86/kernel/iosf_mbi.c | 8 ++++++--
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2db4b1d..3afcac3 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -494,6 +494,12 @@ config IOSF_MBI
You should say Y if you are running a kernel on one of these
platforms.
+config IOSF_MBI_DEBUG
+ bool "Enable debugfs access to IOSF"
+ depends on IOSF_MBI && DEBUG_FS
+ ---help---
+ Select this option to enable iosf sideband debugging through debugfs.
+
config X86_RDC321X
bool "RDC R-321x SoC"
depends on X86_32
diff --git a/arch/x86/kernel/iosf_mbi.c b/arch/x86/kernel/iosf_mbi.c
index e01f741..f884ddc 100644
--- a/arch/x86/kernel/iosf_mbi.c
+++ b/arch/x86/kernel/iosf_mbi.c
@@ -190,7 +190,7 @@ bool iosf_mbi_available(void)
}
EXPORT_SYMBOL(iosf_mbi_available);
-/********************** debugfs begin ****************************/
+#if (IS_ENABLED(CONFIG_IOSF_MBI_DEBUG))
static u32 dbg_mdr;
static u32 dbg_mcr;
static u32 dbg_mcrx;
@@ -257,7 +257,7 @@ static void iosf_sideband_debug_init(void)
cleanup:
debugfs_remove_recursive(d);
}
-/********************** debugfs end ****************************/
+#endif /* CONFIG_IOSF_MBI_DEBUG */
static int iosf_mbi_probe(struct pci_dev *pdev,
const struct pci_device_id *unused)
@@ -290,13 +290,17 @@ static struct pci_driver iosf_mbi_pci_driver = {
static int __init iosf_mbi_init(void)
{
+#if IS_ENABLED(CONFIG_IOSF_MBI_DEBUG)
iosf_sideband_debug_init();
+#endif
return pci_register_driver(&iosf_mbi_pci_driver);
}
static void __exit iosf_mbi_exit(void)
{
+#if IS_ENABLED(CONFIG_IOSF_MBI_DEBUG)
debugfs_remove_recursive(iosf_dbg);
+#endif
pci_unregister_driver(&iosf_mbi_pci_driver);
if (mbi_pdev) {
--
1.9.1
--
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