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OMAP: DSS2: Taal: Add sysfs file for ESD interval

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Implement sysfs support to configure the ESD interval.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2011-03-24 14:06:51 +02:00
parent 1663d2f70a
commit 1f8fa452af
1 changed files with 42 additions and 0 deletions
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42
drivers/video/omap2/displays/panel-taal.c
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@ -635,18 +635,60 @@ static ssize_t show_cabc_available_modes(struct device *dev,
return len < PAGE_SIZE ? len : PAGE_SIZE - 1; 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(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(hw_revision, S_IRUGO, taal_hw_revision_show, NULL);
static DEVICE_ATTR(cabc_mode, S_IRUGO | S_IWUSR, static DEVICE_ATTR(cabc_mode, S_IRUGO | S_IWUSR,
show_cabc_mode, store_cabc_mode); show_cabc_mode, store_cabc_mode);
static DEVICE_ATTR(cabc_available_modes, S_IRUGO, static DEVICE_ATTR(cabc_available_modes, S_IRUGO,
show_cabc_available_modes, NULL); 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[] = { static struct attribute *taal_attrs[] = {
&dev_attr_num_dsi_errors.attr, &dev_attr_num_dsi_errors.attr,
&dev_attr_hw_revision.attr, &dev_attr_hw_revision.attr,
&dev_attr_cabc_mode.attr, &dev_attr_cabc_mode.attr,
&dev_attr_cabc_available_modes.attr, &dev_attr_cabc_available_modes.attr,
&dev_attr_esd_interval.attr,
NULL, NULL,
}; };