From: tomi.valkeinen@ti.com (Tomi Valkeinen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/3] OMAP: add omap_device_reset()
Date: Thu, 26 May 2011 19:45:06 +0300 [thread overview]
Message-ID: <1306428307-1360-3-git-send-email-tomi.valkeinen@ti.com> (raw)
In-Reply-To: <1306428307-1360-1-git-send-email-tomi.valkeinen@ti.com>
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@ti.com>
---
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
next prev parent reply other threads:[~2011-05-26 16:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-26 16:45 [PATCH 0/3] Some omap_device/hwmod/pwrdomain patches Tomi Valkeinen
2011-05-26 16:45 ` [PATCH 1/3] OMAP: change get_context_loss_count ret value to int Tomi Valkeinen
2011-05-26 17:23 ` Kevin Hilman
2011-05-26 18:37 ` Paul Walmsley
2011-05-27 5:24 ` Tomi Valkeinen
2011-05-26 16:45 ` Tomi Valkeinen [this message]
2011-05-26 16:45 ` [PATCH 3/3] OMAP: Add (omap_device|omap_hwmod)_can_ever_lose_context functions Tomi Valkeinen
2011-05-26 17:30 ` [PATCH 0/3] Some omap_device/hwmod/pwrdomain patches Kevin Hilman
2011-05-27 5:31 ` Tomi Valkeinen
2011-05-27 14:57 ` Kevin Hilman
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