mmc: sdhi: allow powering down controller with no card inserted

Supply a link to TMIO private data for platforms to implement their
own card detection.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index d264bbeb529b..b3654293017b 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -71,6 +71,7 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
         }
 
         mmc_data = &priv->mmc_data;
+        p->pdata = mmc_data;
 
         snprintf(clk_name, sizeof(clk_name), "sdhi%d", pdev->id);
         priv->clk = clk_get(&pdev->dev, clk_name);
@@ -159,8 +160,11 @@ static int sh_mobile_sdhi_remove(struct platform_device *pdev)
         struct mmc_host *mmc = platform_get_drvdata(pdev);
         struct tmio_mmc_host *host = mmc_priv(mmc);
         struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
+        struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
         int i, irq;
 
+        p->pdata = NULL;
+
         for (i = 0; i < 3; i++) {
                 irq = platform_get_irq(pdev, i);
                 if (irq >= 0)
@@ -178,6 +182,8 @@ static int sh_mobile_sdhi_remove(struct platform_device *pdev)
 static const struct dev_pm_ops tmio_mmc_dev_pm_ops = {
         .suspend = tmio_mmc_host_suspend,
         .resume = tmio_mmc_host_resume,
+        .runtime_suspend = tmio_mmc_host_runtime_suspend,
+        .runtime_resume = tmio_mmc_host_runtime_resume,
 };
 
 static struct platform_driver sh_mobile_sdhi_driver = {