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>

diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index d264bbe..b365429 100644 (file)
--- 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 = {

diff --git a/include/linux/mmc/sh_mobile_sdhi.h b/include/linux/mmc/sh_mobile_sdhi.h
index c981b95..faf32b6 100644 (file)
--- a/include/linux/mmc/sh_mobile_sdhi.h
+++ b/include/linux/mmc/sh_mobile_sdhi.h
@@ -3,12 +3,16 @@
 
 #include <linux/types.h>
 
+struct platform_device;
+struct tmio_mmc_data;
+
 struct sh_mobile_sdhi_info {
        int dma_slave_tx;
        int dma_slave_rx;
        unsigned long tmio_flags;
        unsigned long tmio_caps;
        u32 tmio_ocr_mask;      /* available MMC voltages */
+       struct tmio_mmc_data *pdata;
        void (*set_pwr)(struct platform_device *pdev, int state);
        int (*get_cd)(struct platform_device *pdev);
 };