diff options
Diffstat (limited to 'drivers/video/omap2/dss/display.c')
| -rw-r--r-- | drivers/video/omap2/dss/display.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c index a0bbdf6684b..c2dfc8c5005 100644 --- a/drivers/video/omap2/dss/display.c +++ b/drivers/video/omap2/dss/display.c @@ -65,6 +65,48 @@ static ssize_t display_enabled_store(struct device *dev, return size; } +static ssize_t display_upd_mode_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + enum omap_dss_update_mode mode = OMAP_DSS_UPDATE_AUTO; + if (dssdev->driver->get_update_mode) + mode = dssdev->driver->get_update_mode(dssdev); + return snprintf(buf, PAGE_SIZE, "%d\n", mode); +} + +static ssize_t display_upd_mode_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + int val, r; + enum omap_dss_update_mode mode; + + if (!dssdev->driver->set_update_mode) + return -EINVAL; + + r = kstrtoint(buf, 0, &val); + if (r) + return r; + + switch (val) { + case OMAP_DSS_UPDATE_DISABLED: + case OMAP_DSS_UPDATE_AUTO: + case OMAP_DSS_UPDATE_MANUAL: + mode = (enum omap_dss_update_mode)val; + break; + default: + return -EINVAL; + } + + r = dssdev->driver->set_update_mode(dssdev, mode); + if (r) + return r; + + return size; +} + static ssize_t display_tear_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -252,6 +294,8 @@ static ssize_t display_wss_store(struct device *dev, static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR, display_enabled_show, display_enabled_store); +static DEVICE_ATTR(update_mode, S_IRUGO|S_IWUSR, + display_upd_mode_show, display_upd_mode_store); static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR, display_tear_show, display_tear_store); static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR, @@ -265,6 +309,7 @@ static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR, static struct device_attribute *display_sysfs_attrs[] = { &dev_attr_enabled, + &dev_attr_update_mode, &dev_attr_tear_elim, &dev_attr_timings, &dev_attr_rotate, |