Add omap_device_reset() function which can be used to reset the hwmods
associated with the given platform device.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
arch/arm/plat-omap/include/plat/omap_device.h | 1 +
arch/arm/plat-omap/omap_device.c | 23 +++++++++++++++++++++++
2 files changed, 24 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 70d31d0..bcf1b35 100644
--- a/arch/arm/plat-omap/include/plat/omap_device.h
+++ b/arch/arm/plat-omap/include/plat/omap_device.h
@@ -108,6 +108,7 @@ int omap_device_align_pm_lat(struct platform_device *pdev,
u32 new_wakeup_lat_limit);
struct powerdomain *omap_device_get_pwrdm(struct omap_device *od);
int omap_device_get_context_loss_count(struct platform_device *pdev);
+int omap_device_reset(struct platform_device *pdev);
/* Other */
diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index 9753f71..4e6fc1b 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -324,6 +324,29 @@ int omap_device_get_context_loss_count(struct platform_device *pdev)
}
/**
+ * omap_device_reset - reset hwmods of given device
+ * @pdev: struct platform_device *
+ *
+ * Reset all hwmods associated with the given device. If a reset of a hwmod
+ * fails the rest of the hwmods are skipped and the error is returned.
+ */
+int omap_device_reset(struct platform_device *pdev)
+{
+ struct omap_device *od;
+ int i, r;
+
+ od = _find_by_pdev(pdev);
+
+ for (i = 0; i < od->hwmods_cnt; i++) {
+ r = omap_hwmod_reset(od->hwmods[i]);
+ if (r)
+ return r;
+ }
+
+ return 0;
+}
+
+/**
* omap_device_count_resources - count number of struct resource entries needed
* @od: struct omap_device *
*
--
1.7.4.1
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