aboutsummaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
authorTomi Valkeinen <tomi.valkeinen@ti.com>2011-03-24 14:06:51 +0200
committerTomi Valkeinen <tomi.valkeinen@ti.com>2011-05-11 14:20:47 +0300
commit1f8fa452afe88b33cbfac6a82b0edd77a0644804 (patch)
treeb5a50fa60e40842c70b24117d3637f7c2efb2dbd /drivers
parent1663d2f70a9404b822fb0e8fbc40d42fdfeed0bd (diff)
OMAP: DSS2: Taal: Add sysfs file for ESD interval
Implement sysfs support to configure the ESD interval. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/omap2/displays/panel-taal.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index bbfd5feed33f..3f766035f885 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -635,18 +635,60 @@ static ssize_t show_cabc_available_modes(struct device *dev,
return len < PAGE_SIZE ? len : PAGE_SIZE - 1;
}
+static ssize_t taal_store_esd_interval(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+
+ unsigned long t;
+ int r;
+
+ r = strict_strtoul(buf, 10, &t);
+ if (r)
+ return r;
+
+ mutex_lock(&td->lock);
+ taal_cancel_esd_work(dssdev);
+ td->esd_interval = t;
+ if (td->enabled)
+ taal_queue_esd_work(dssdev);
+ mutex_unlock(&td->lock);
+
+ return count;
+}
+
+static ssize_t taal_show_esd_interval(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ unsigned t;
+
+ mutex_lock(&td->lock);
+ t = td->esd_interval;
+ mutex_unlock(&td->lock);
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", t);
+}
+
static DEVICE_ATTR(num_dsi_errors, S_IRUGO, taal_num_errors_show, NULL);
static DEVICE_ATTR(hw_revision, S_IRUGO, taal_hw_revision_show, NULL);
static DEVICE_ATTR(cabc_mode, S_IRUGO | S_IWUSR,
show_cabc_mode, store_cabc_mode);
static DEVICE_ATTR(cabc_available_modes, S_IRUGO,
show_cabc_available_modes, NULL);
+static DEVICE_ATTR(esd_interval, S_IRUGO | S_IWUSR,
+ taal_show_esd_interval, taal_store_esd_interval);
static struct attribute *taal_attrs[] = {
&dev_attr_num_dsi_errors.attr,
&dev_attr_hw_revision.attr,
&dev_attr_cabc_mode.attr,
&dev_attr_cabc_available_modes.attr,
+ &dev_attr_esd_interval.attr,
NULL,
};

Privacy Policy