From: Greg Hackmann Date: Thu, 15 Aug 2013 19:51:22 +0000 (-0700) Subject: video: adf: make dpms_state sysfs attribute writable X-Git-Tag: firefly_0821_release~2958^2~230 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e3580d589dea3c1d4df33669af88632ee84aaa98;p=firefly-linux-kernel-4.4.55.git video: adf: make dpms_state sysfs attribute writable Change-Id: I04e7785cbddac160003e6c9edaf62d20b367fdc9 Signed-off-by: Greg Hackmann --- diff --git a/drivers/video/adf/adf_sysfs.c b/drivers/video/adf/adf_sysfs.c index 567c5599793b..076ccbd0cd88 100644 --- a/drivers/video/adf/adf_sysfs.c +++ b/drivers/video/adf/adf_sysfs.c @@ -33,6 +33,24 @@ static ssize_t dpms_state_show(struct device *dev, adf_interface_dpms_state(intf)); } +static ssize_t dpms_state_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct adf_interface *intf = dev_to_adf_interface(dev); + u8 dpms_state; + int err; + + err = kstrtou8(buf, 0, &dpms_state); + if (err < 0) + return err; + + err = adf_interface_blank(intf, dpms_state); + if (err < 0) + return err; + + return count; +} + static ssize_t current_mode_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -80,7 +98,7 @@ static ssize_t hotplug_detect_show(struct device *dev, } static struct device_attribute adf_interface_attrs[] = { - __ATTR_RO(dpms_state), + __ATTR(dpms_state, S_IRUGO|S_IWUSR, dpms_state_show, dpms_state_store), __ATTR_RO(current_mode), __ATTR_RO(hotplug_detect), __ATTR_RO(type),