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From: Kevin Hilman <khilman@deeprootsystems.com>
To: linux-omap@vger.kernel.org
Subject: [PATCH 4/4] OMAP: omap_device: add flag to disable automatic bus-level suspend/resume
Date: Thu, 27 May 2010 14:13:19 -0700	[thread overview]
Message-ID: <1274994799-30297-5-git-send-email-khilman@deeprootsystems.com> (raw)
In-Reply-To: <1274994799-30297-1-git-send-email-khilman@deeprootsystems.com>

As part of the runtime PM support, bus-level code can automatically
handle the enable/idle for each omap_device.  There are, however, some
special cases where we don't want the bus-level layer to handle this,
and instead handle it manually.

Specific use cases are for omap_devices that are controlled
inside the idle path (like UART.)

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
---
 arch/arm/plat-omap/include/plat/omap_device.h |    5 +++++
 1 files changed, 5 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 3694b62..2cdbcdd 100644
--- a/arch/arm/plat-omap/include/plat/omap_device.h
+++ b/arch/arm/plat-omap/include/plat/omap_device.h
@@ -68,12 +68,16 @@ struct omap_device {
 	struct omap_device_pm_latency	*pm_lats;
 	u32				dev_wakeup_lat;
 	u32				_dev_wakeup_lat_limit;
+	u32                             flags;
 	u8				pm_lats_cnt;
 	s8				pm_lat_level;
 	u8				hwmods_cnt;
 	u8				_state;
 };
 
+/* flags for struct omap_device */
+#define OMAP_DEVICE_NO_BUS_SUSPEND     BIT(0)
+
 /* Device driver interface (call via platform_data fn ptrs) */
 
 int omap_device_enable(struct platform_device *pdev);
@@ -142,6 +146,7 @@ struct omap_device_pm_latency {
 	u32 flags;
 };
 
+/* flags for struct omap_device_pm_latency */
 #define OMAP_DEVICE_LATENCY_AUTO_ADJUST BIT(1)
 
 /* Get omap_device pointer from platform_device pointer */
-- 
1.7.0.2


  parent reply	other threads:[~2010-05-27 21:13 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-27 21:13 [PATCH 0/4] runtime PM support at the bus level Kevin Hilman
2010-05-27 21:13 ` [PATCH 1/4] platform_bus: allow custom extensions to system PM methods Kevin Hilman
2010-05-27 21:13 ` [PATCH 2/4] OMAP: PM: initial runtime PM core support Kevin Hilman
2010-05-27 21:13 ` [PATCH 3/4] OMAP: PM: use omap_device API for suspend/resume Kevin Hilman
2010-06-01  6:11   ` Nayak, Rajendra
2010-06-01 17:13     ` Kevin Hilman
2010-06-21 15:18       ` Paul Walmsley
2010-06-21 16:04         ` Kevin Hilman
2010-06-21 21:39           ` Paul Walmsley
2010-06-21 23:59             ` Kevin Hilman
2010-06-24  3:27               ` Paul Walmsley
2010-06-24  7:06                 ` Paul Walmsley
2010-06-24 17:24                   ` Paul Walmsley
2010-06-24 17:23                 ` Kevin Hilman
2010-05-27 21:13 ` Kevin Hilman [this message]
2010-06-17 23:08 ` [PATCH] OMAP1: PM: add simple runtime PM layer to manage clocks Kevin Hilman
2010-06-26 16:08   ` DebBarma, Tarun Kanti

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