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authorTony Lindgren <tony@atomide.com>2012-09-23 19:31:35 -0700
committerTony Lindgren <tony@atomide.com>2012-09-23 19:31:35 -0700
commit9cd68fa707cf6372f33eb51a5719dd7626efe5f6 (patch)
tree66cde27bd288e011a6e4cff87d342666399a1266 /arch/arm/plat-omap/omap_device.c
parent5698bd757d55b1bb87edd1a9744ab09c142abfc2 (diff)
parent76a5d9bfc42d60e9a672e0cae776157a60970f4e (diff)
Merge tag 'omap-devel-b-c-2-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-late
OMAP patches intended for the 3.7 merge window: - Runtime PM conversions for the GPMC and RNG IP blocks - Preparation patches for the OMAP common clock framework conversion - clkdev alias additions required by other drivers - Performance Monitoring Unit (PMU) support for OMAP2, 3, and non-4430 OMAP4 - OMAP hwmod code and data improvements - Preparation patches for the IOMMU runtime PM conversion - Preparation patches for OMAP4 full-chip retention support Based on a merge of v3.6-rc6, the omap-cleanup-b-for-3.7 tag (7852ec0536ca39cefffc6301dc77f8ae55592926),the cleanup-fixes-for-v3.7 tag (de6ca33a96a6bf61fcb91d3d399703e19ead9d1e), and the omap-devel-am33xx-for-v3.7 tag (11964f53eb4d9ce59a058be9999d9cfcb1ced878), due to dependencies. These patches have been tested for meaningful warnings from checkpatch, sparse, smatch, and cppcheck. Basic build, boot[1], and PM test logs are available here: http://www.pwsan.com/omap/testlogs/hwmod_prcm_clock_a_3.7/20120923173830/ ... 1. Note that the N800 boot fails due to a known issue present in the base commit: http://www.spinics.net/lists/arm-kernel/msg196034.html
Diffstat (limited to 'arch/arm/plat-omap/omap_device.c')
-rw-r--r--arch/arm/plat-omap/omap_device.c84
1 files changed, 67 insertions, 17 deletions
diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index c490240bb82..5b697426910 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -1,4 +1,3 @@
-
/*
* omap_device implementation
*
@@ -153,21 +152,19 @@ static int _omap_device_activate(struct omap_device *od, u8 ignore_lat)
act_lat = timespec_to_ns(&c);
dev_dbg(&od->pdev->dev,
- "omap_device: pm_lat %d: activate: elapsed time "
- "%llu nsec\n", od->pm_lat_level, act_lat);
+ "omap_device: pm_lat %d: activate: elapsed time %llu nsec\n",
+ od->pm_lat_level, act_lat);
if (act_lat > odpl->activate_lat) {
odpl->activate_lat_worst = act_lat;
if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) {
odpl->activate_lat = act_lat;
dev_dbg(&od->pdev->dev,
- "new worst case activate latency "
- "%d: %llu\n",
+ "new worst case activate latency %d: %llu\n",
od->pm_lat_level, act_lat);
} else
dev_warn(&od->pdev->dev,
- "activate latency %d "
- "higher than exptected. (%llu > %d)\n",
+ "activate latency %d higher than expected. (%llu > %d)\n",
od->pm_lat_level, act_lat,
odpl->activate_lat);
}
@@ -220,21 +217,19 @@ static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat)
deact_lat = timespec_to_ns(&c);
dev_dbg(&od->pdev->dev,
- "omap_device: pm_lat %d: deactivate: elapsed time "
- "%llu nsec\n", od->pm_lat_level, deact_lat);
+ "omap_device: pm_lat %d: deactivate: elapsed time %llu nsec\n",
+ od->pm_lat_level, deact_lat);
if (deact_lat > odpl->deactivate_lat) {
odpl->deactivate_lat_worst = deact_lat;
if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) {
odpl->deactivate_lat = deact_lat;
dev_dbg(&od->pdev->dev,
- "new worst case deactivate latency "
- "%d: %llu\n",
+ "new worst case deactivate latency %d: %llu\n",
od->pm_lat_level, deact_lat);
} else
dev_warn(&od->pdev->dev,
- "deactivate latency %d "
- "higher than exptected. (%llu > %d)\n",
+ "deactivate latency %d higher than expected. (%llu > %d)\n",
od->pm_lat_level, deact_lat,
odpl->deactivate_lat);
}
@@ -266,10 +261,10 @@ static void _add_clkdev(struct omap_device *od, const char *clk_alias,
return;
}
- r = omap_clk_get_by_name(clk_name);
+ r = clk_get(NULL, clk_name);
if (IS_ERR(r)) {
dev_err(&od->pdev->dev,
- "omap_clk_get_by_name for %s failed\n", clk_name);
+ "clk_get for %s failed\n", clk_name);
return;
}
@@ -449,8 +444,8 @@ static int omap_device_count_resources(struct omap_device *od)
for (i = 0; i < od->hwmods_cnt; i++)
c += omap_hwmod_count_resources(od->hwmods[i]);
- pr_debug("omap_device: %s: counted %d total resources across %d "
- "hwmods\n", od->pdev->name, c, od->hwmods_cnt);
+ pr_debug("omap_device: %s: counted %d total resources across %d hwmods\n",
+ od->pdev->name, c, od->hwmods_cnt);
return c;
}
@@ -925,6 +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 *
*