This relatively simple boiler-plate code is repeated in several platform
drivers. We should implement a common version in libata.
Signed-off-by: Brian Norris <computersforpeace@xxxxxxxxx>
---
v2: fix whitespace
drivers/ata/libata-core.c | 23 +++++++++++++++++++++++
include/linux/libata.h | 4 ++++
2 files changed, 27 insertions(+)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 611050d..7bf1199 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -67,6 +67,7 @@
#include <linux/cdrom.h>
#include <linux/ratelimit.h>
#include <linux/pm_runtime.h>
+#include <linux/platform_device.h>
#include "libata.h"
#include "libata-transport.h"
@@ -6350,6 +6351,26 @@ int ata_pci_device_resume(struct pci_dev *pdev)
#endif /* CONFIG_PCI */
+/**
+ * ata_platform_remove_one- Platform layer callback for device removal
+ * @pdev: Platform device that was removed
+ *
+ * Platform layer indicates to libata via this hook that hot-unplug or
+ * module unload event has occurred. Detach all ports. Resource
+ * release is handled via devres.
+ *
+ * LOCKING:
+ * Inherited from platform layer (may sleep).
+ */
+int ata_platform_remove_one(struct platform_device *pdev)
+{
+ struct ata_host *host = platform_get_drvdata(pdev);
+
+ ata_host_detach(host);
+
+ return 0;
+}
+
static int __init ata_parse_force_one(char **cur,
struct ata_force_ent *force_ent,
const char **reason)
@@ -6844,6 +6865,8 @@ EXPORT_SYMBOL_GPL(ata_pci_device_resume);
#endif /* CONFIG_PM */
#endif /* CONFIG_PCI */
+EXPORT_SYMBOL_GPL(ata_platform_remove_one);
+
EXPORT_SYMBOL_GPL(__ata_ehi_push_desc);
EXPORT_SYMBOL_GPL(ata_ehi_push_desc);
EXPORT_SYMBOL_GPL(ata_ehi_clear_desc);
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 464e67c..cedcd0f 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1103,6 +1103,10 @@ extern int ata_pci_device_resume(struct pci_dev *pdev);
#endif /* CONFIG_PM */
#endif /* CONFIG_PCI */
+struct platform_device;
+
+extern int ata_platform_remove_one(struct platform_device *pdev);
+
/*
* ACPI - drivers/ata/libata-acpi.c
*/
--
1.7.11.3
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