ata: ahci_brcm: Add a shutdown callback

Make sure that we quiesce the controller and shut down the clocks in a
shutdown callback.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/ata/ahci_brcm.c b/drivers/ata/ahci_brcm.c
index 76612577a59ae480636927c5ecb2a72963a7a8e8..58e1a6e5478d972142b2507ee03a15f31c38ad46 100644 (file)
--- a/drivers/ata/ahci_brcm.c
+++ b/drivers/ata/ahci_brcm.c
@@ -532,11 +532,26 @@ static int brcm_ahci_remove(struct platform_device *pdev)
        return 0;
 }
 
+static void brcm_ahci_shutdown(struct platform_device *pdev)
+{
+       int ret;
+
+       /* All resources releasing happens via devres, but our device, unlike a
+        * proper remove is not disappearing, therefore using
+        * brcm_ahci_suspend() here which does explicit power management is
+        * appropriate.
+        */
+       ret = brcm_ahci_suspend(&pdev->dev);
+       if (ret)
+               dev_err(&pdev->dev, "failed to shutdown\n");
+}
+
 static SIMPLE_DEV_PM_OPS(ahci_brcm_pm_ops, brcm_ahci_suspend, brcm_ahci_resume);
 
 static struct platform_driver brcm_ahci_driver = {
        .probe = brcm_ahci_probe,
        .remove = brcm_ahci_remove,
+       .shutdown = brcm_ahci_shutdown,
        .driver = {
                .name = DRV_NAME,
                .of_match_table = ahci_of_match,