s3cmci: ensure host stopped on machine shutdown

Ensure that the s3cmci host controller is turned off
when the machine is shutdown, otherwise we end up
leaving the card powered and processing insertion and
removal events after the system prints "System halted."

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

1 files changed, 16 insertions, 4 deletions

diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 8904bb39df65..be550c26da68 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -1331,21 +1331,30 @@ static int __devinit s3cmci_probe(struct platform_device *pdev, int is2440)
         return ret;
 }
 
+static void s3cmci_shutdown(struct platform_device *pdev)
+{
+        struct mmc_host *mmc = platform_get_drvdata(pdev);
+        struct s3cmci_host *host = mmc_priv(mmc);
+
+        if (host->irq_cd >= 0)
+                free_irq(host->irq_cd, host);
+
+        mmc_remove_host(mmc);
+        clk_disable(host->clk);
+}
+
 static int __devexit s3cmci_remove(struct platform_device *pdev)
 {
         struct mmc_host         *mmc  = platform_get_drvdata(pdev);
         struct s3cmci_host      *host = mmc_priv(mmc);
 
-        mmc_remove_host(mmc);
+        s3cmci_shutdown(pdev);
 
-        clk_disable(host->clk);
         clk_put(host->clk);
 
         tasklet_disable(&host->pio_tasklet);
         s3c2410_dma_free(S3CMCI_DMA, &s3cmci_dma_client);
 
-        if (host->irq_cd >= 0)
-                free_irq(host->irq_cd, host);
         free_irq(host->irq, host);
 
         iounmap(host->base);
@@ -1397,6 +1406,7 @@ static struct platform_driver s3cmci_2410_driver = {
         .driver.owner   = THIS_MODULE,
         .probe          = s3cmci_2410_probe,
         .remove         = __devexit_p(s3cmci_remove),
+        .shutdown       = s3cmci_shutdown,
         .suspend        = s3cmci_suspend,
         .resume         = s3cmci_resume,
 };
@@ -1406,6 +1416,7 @@ static struct platform_driver s3cmci_2412_driver = {
         .driver.owner   = THIS_MODULE,
         .probe          = s3cmci_2412_probe,
         .remove         = __devexit_p(s3cmci_remove),
+        .shutdown       = s3cmci_shutdown,
         .suspend        = s3cmci_suspend,
         .resume         = s3cmci_resume,
 };
@@ -1415,6 +1426,7 @@ static struct platform_driver s3cmci_2440_driver = {
         .driver.owner   = THIS_MODULE,
         .probe          = s3cmci_2440_probe,
         .remove         = __devexit_p(s3cmci_remove),
+        .shutdown       = s3cmci_shutdown,
         .suspend        = s3cmci_suspend,
         .resume         = s3cmci_resume,
 };