2 files changed, 59 insertions, 0 deletions

diff --git a/arch/arm/plat-omap/include/plat/omap_device.h b/arch/arm/plat-omap/include/plat/omap_device.h
index 4327b2c90c3d..27bcc2441195 100644
--- a/arch/arm/plat-omap/include/plat/omap_device.h
+++ b/arch/arm/plat-omap/include/plat/omap_device.h
@@ -118,6 +118,10 @@ int omap_device_get_context_loss_count(struct platform_device *pdev);
 
 /* Other */
 
+int omap_device_assert_hardreset(struct platform_device *pdev,
+                                 const char *name);
+int omap_device_deassert_hardreset(struct platform_device *pdev,
+                                 const char *name);
 int omap_device_idle_hwmods(struct omap_device *od);
 int omap_device_enable_hwmods(struct omap_device *od);
 
diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index 6056a622a5f9..5b6974269107 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -920,6 +920,61 @@ int omap_device_shutdown(struct platform_device *pdev)
 }
 
 /**
+ * omap_device_assert_hardreset - set a device's hardreset line
+ * @pdev: struct platform_device * to reset
+ * @name: const char * name of the reset line
+ *
+ * Set the hardreset line identified by @name on the IP blocks
+ * associated with the hwmods backing the platform_device @pdev.  All
+ * of the hwmods associated with @pdev must have the same hardreset
+ * line linked to them for this to work.  Passes along the return value
+ * of omap_hwmod_assert_hardreset() in the event of any failure, or
+ * returns 0 upon success.
+ */
+int omap_device_assert_hardreset(struct platform_device *pdev, const char *name)
+{
+        struct omap_device *od = to_omap_device(pdev);
+        int ret = 0;
+        int i;
+
+        for (i = 0; i < od->hwmods_cnt; i++) {
+                ret = omap_hwmod_assert_hardreset(od->hwmods[i], name);
+                if (ret)
+                        break;
+        }
+
+        return ret;
+}
+
+/**
+ * omap_device_deassert_hardreset - release a device's hardreset line
+ * @pdev: struct platform_device * to reset
+ * @name: const char * name of the reset line
+ *
+ * Release the hardreset line identified by @name on the IP blocks
+ * associated with the hwmods backing the platform_device @pdev.  All
+ * of the hwmods associated with @pdev must have the same hardreset
+ * line linked to them for this to work.  Passes along the return
+ * value of omap_hwmod_deassert_hardreset() in the event of any
+ * failure, or returns 0 upon success.
+ */
+int omap_device_deassert_hardreset(struct platform_device *pdev,
+                                   const char *name)
+{
+        struct omap_device *od = to_omap_device(pdev);
+        int ret = 0;
+        int i;
+
+        for (i = 0; i < od->hwmods_cnt; i++) {
+                ret = omap_hwmod_deassert_hardreset(od->hwmods[i], name);
+                if (ret)
+                        break;
+        }
+
+        return ret;
+}
+
+/**
  * omap_device_align_pm_lat - activate/deactivate device to match wakeup lat lim
  * @od: struct omap_device *
  *