ata: ahci_platform: Add shutdown handler
The newly introduced ahci_platform_shutdown() method is called during
system shutdown to disable host controller DMA and interrupts in order
to avoid potentially corrupting or otherwise interfering with a new
kernel being started with kexec.
Signed-off-by: Nate Watterson <nwatters@codeaurora.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/include/linux/ahci_platform.h b/include/linux/ahci_platform.h
index a270f25e..1b0a17b 100644
--- a/include/linux/ahci_platform.h
+++ b/include/linux/ahci_platform.h
@@ -36,6 +36,8 @@ int ahci_platform_init_host(struct platform_device *pdev,
const struct ata_port_info *pi_template,
struct scsi_host_template *sht);
+void ahci_platform_shutdown(struct platform_device *pdev);
+
int ahci_platform_suspend_host(struct device *dev);
int ahci_platform_resume_host(struct device *dev);
int ahci_platform_suspend(struct device *dev);