These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / scsi / ufs / ufshcd-pltfrm.c

diff --git a/kernel/drivers/scsi/ufs/ufshcd-pltfrm.c b/kernel/drivers/scsi/ufs/ufshcd-pltfrm.c
index 7db9564..9714f2a 100644 (file)
--- a/kernel/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/kernel/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -38,20 +38,7 @@
 #include <linux/of.h>
 
 #include "ufshcd.h"
-
-static const struct of_device_id ufs_of_match[];
-static struct ufs_hba_variant_ops *get_variant_ops(struct device *dev)
-{
-       if (dev->of_node) {
-               const struct of_device_id *match;
-
-               match = of_match_node(ufs_of_match, dev->of_node);
-               if (match)
-                       return (struct ufs_hba_variant_ops *)match->data;
-       }
-
-       return NULL;
-}
+#include "ufshcd-pltfrm.h"
 
 static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 {
@@ -245,10 +232,11 @@ out:
  * Returns 0 if successful
  * Returns non-zero otherwise
  */
-static int ufshcd_pltfrm_suspend(struct device *dev)
+int ufshcd_pltfrm_suspend(struct device *dev)
 {
        return ufshcd_system_suspend(dev_get_drvdata(dev));
 }
+EXPORT_SYMBOL_GPL(ufshcd_pltfrm_suspend);
 
 /**
  * ufshcd_pltfrm_resume - resume power management function
@@ -257,43 +245,47 @@ static int ufshcd_pltfrm_suspend(struct device *dev)
  * Returns 0 if successful
  * Returns non-zero otherwise
  */
-static int ufshcd_pltfrm_resume(struct device *dev)
+int ufshcd_pltfrm_resume(struct device *dev)
 {
        return ufshcd_system_resume(dev_get_drvdata(dev));
 }
+EXPORT_SYMBOL_GPL(ufshcd_pltfrm_resume);
 
-static int ufshcd_pltfrm_runtime_suspend(struct device *dev)
+int ufshcd_pltfrm_runtime_suspend(struct device *dev)
 {
        return ufshcd_runtime_suspend(dev_get_drvdata(dev));
 }
-static int ufshcd_pltfrm_runtime_resume(struct device *dev)
+EXPORT_SYMBOL_GPL(ufshcd_pltfrm_runtime_suspend);
+
+int ufshcd_pltfrm_runtime_resume(struct device *dev)
 {
        return ufshcd_runtime_resume(dev_get_drvdata(dev));
 }
-static int ufshcd_pltfrm_runtime_idle(struct device *dev)
+EXPORT_SYMBOL_GPL(ufshcd_pltfrm_runtime_resume);
+
+int ufshcd_pltfrm_runtime_idle(struct device *dev)
 {
        return ufshcd_runtime_idle(dev_get_drvdata(dev));
 }
-#else /* !CONFIG_PM */
-#define ufshcd_pltfrm_suspend  NULL
-#define ufshcd_pltfrm_resume   NULL
-#define ufshcd_pltfrm_runtime_suspend  NULL
-#define ufshcd_pltfrm_runtime_resume   NULL
-#define ufshcd_pltfrm_runtime_idle     NULL
+EXPORT_SYMBOL_GPL(ufshcd_pltfrm_runtime_idle);
+
 #endif /* CONFIG_PM */
 
-static void ufshcd_pltfrm_shutdown(struct platform_device *pdev)
+void ufshcd_pltfrm_shutdown(struct platform_device *pdev)
 {
        ufshcd_shutdown((struct ufs_hba *)platform_get_drvdata(pdev));
 }
+EXPORT_SYMBOL_GPL(ufshcd_pltfrm_shutdown);
 
 /**
- * ufshcd_pltfrm_probe - probe routine of the driver
+ * ufshcd_pltfrm_init - probe routine of the driver
  * @pdev: pointer to Platform device handle
+ * @vops: pointer to variant ops
  *
  * Returns 0 on success, non-zero value on failure
  */
-static int ufshcd_pltfrm_probe(struct platform_device *pdev)
+int ufshcd_pltfrm_init(struct platform_device *pdev,
+                      struct ufs_hba_variant_ops *vops)
 {
        struct ufs_hba *hba;
        void __iomem *mmio_base;
@@ -321,19 +313,19 @@ static int ufshcd_pltfrm_probe(struct platform_device *pdev)
                goto out;
        }
 
-       hba->vops = get_variant_ops(&pdev->dev);
+       hba->vops = vops;
 
        err = ufshcd_parse_clock_info(hba);
        if (err) {
                dev_err(&pdev->dev, "%s: clock parse failed %d\n",
                                __func__, err);
-               goto out;
+               goto dealloc_host;
        }
        err = ufshcd_parse_regulator_info(hba);
        if (err) {
                dev_err(&pdev->dev, "%s: regulator init failed %d\n",
                                __func__, err);
-               goto out;
+               goto dealloc_host;
        }
 
        pm_runtime_set_active(&pdev->dev);
@@ -352,50 +344,12 @@ static int ufshcd_pltfrm_probe(struct platform_device *pdev)
 out_disable_rpm:
        pm_runtime_disable(&pdev->dev);
        pm_runtime_set_suspended(&pdev->dev);
+dealloc_host:
+       ufshcd_dealloc_host(hba);
 out:
        return err;
 }
-
-/**
- * ufshcd_pltfrm_remove - remove platform driver routine
- * @pdev: pointer to platform device handle
- *
- * Returns 0 on success, non-zero value on failure
- */
-static int ufshcd_pltfrm_remove(struct platform_device *pdev)
-{
-       struct ufs_hba *hba =  platform_get_drvdata(pdev);
-
-       pm_runtime_get_sync(&(pdev)->dev);
-       ufshcd_remove(hba);
-       return 0;
-}
-
-static const struct of_device_id ufs_of_match[] = {
-       { .compatible = "jedec,ufs-1.1"},
-       {},
-};
-
-static const struct dev_pm_ops ufshcd_dev_pm_ops = {
-       .suspend        = ufshcd_pltfrm_suspend,
-       .resume         = ufshcd_pltfrm_resume,
-       .runtime_suspend = ufshcd_pltfrm_runtime_suspend,
-       .runtime_resume  = ufshcd_pltfrm_runtime_resume,
-       .runtime_idle    = ufshcd_pltfrm_runtime_idle,
-};
-
-static struct platform_driver ufshcd_pltfrm_driver = {
-       .probe  = ufshcd_pltfrm_probe,
-       .remove = ufshcd_pltfrm_remove,
-       .shutdown = ufshcd_pltfrm_shutdown,
-       .driver = {
-               .name   = "ufshcd",
-               .pm     = &ufshcd_dev_pm_ops,
-               .of_match_table = ufs_of_match,
-       },
-};
-
-module_platform_driver(ufshcd_pltfrm_driver);
+EXPORT_SYMBOL_GPL(ufshcd_pltfrm_init);
 
 MODULE_AUTHOR("Santosh Yaragnavi <santosh.sy@samsung.com>");
 MODULE_AUTHOR("Vinayak Holikatti <h.vinayak@samsung.com>");