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authorAndres Salomon <dilinger@queued.net>2007-12-12 14:12:56 -0500
committerAnton Vorontsov <cbouatmailru@gmail.com>2008-02-02 02:42:59 +0300
commit8efe444038a205e79b38b7ad03878824901849a8 (patch)
treeaf3fdf3d84059577ba86630103ae6adbb7d885a3 /drivers
parent4d24473c435c7c3ad7b43e43b70cdb16aba25443 (diff)
downloadop-kernel-dev-8efe444038a205e79b38b7ad03878824901849a8.zip
op-kernel-dev-8efe444038a205e79b38b7ad03878824901849a8.tar.gz
power: remove POWER_SUPPLY_PROP_CAPACITY_LEVEL
The CAPACITY_LEVEL stuff defines various levels of charge; however, what is the difference between them? What differentiates between HIGH and NORMAL, LOW and CRITICAL, etc? As it appears that these are fairly arbitrary, we end up making such policy decisions in the kernel (or in hardware). This is the sort of decision that should be made in userspace, not in the kernel. If the hardware does not support _CAPACITY and it cannot be easily calculated, then perhaps the driver should register a custom CAPACITY_LEVEL attribute; however, userspace should not become accustomed to looking for such a thing, and we should certainly not encourage drivers to provide CAPACITY_LEVEL stubs. The following removes support for POWER_SUPPLY_PROP_CAPACITY_LEVEL. The OLPC battery driver is the only driver making use of this, so it's removed from there as well. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/power/olpc_battery.c9
-rw-r--r--drivers/power/power_supply_sysfs.c6
2 files changed, 0 insertions, 15 deletions
diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c
index c998e68..af7a231 100644
--- a/drivers/power/olpc_battery.c
+++ b/drivers/power/olpc_battery.c
@@ -226,14 +226,6 @@ static int olpc_bat_get_property(struct power_supply *psy,
return ret;
val->intval = ec_byte;
break;
- case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
- if (ec_byte & BAT_STAT_FULL)
- val->intval = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
- else if (ec_byte & BAT_STAT_LOW)
- val->intval = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
- else
- val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
- break;
case POWER_SUPPLY_PROP_TEMP:
ret = olpc_ec_cmd(EC_BAT_TEMP, NULL, 0, (void *)&ec_word, 2);
if (ret)
@@ -265,7 +257,6 @@ static enum power_supply_property olpc_bat_props[] = {
POWER_SUPPLY_PROP_VOLTAGE_AVG,
POWER_SUPPLY_PROP_CURRENT_AVG,
POWER_SUPPLY_PROP_CAPACITY,
- POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TEMP_AMBIENT,
POWER_SUPPLY_PROP_MANUFACTURER,
diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
index e8ad1fd..7a2163f 100644
--- a/drivers/power/power_supply_sysfs.c
+++ b/drivers/power/power_supply_sysfs.c
@@ -50,9 +50,6 @@ static ssize_t power_supply_show_property(struct device *dev,
static char *technology_text[] = {
"Unknown", "NiMH", "Li-ion", "Li-poly", "LiFe", "NiCd"
};
- static char *capacity_level_text[] = {
- "Unknown", "Critical", "Low", "Normal", "High", "Full"
- };
ssize_t ret;
struct power_supply *psy = dev_get_drvdata(dev);
const ptrdiff_t off = attr - power_supply_attrs;
@@ -73,9 +70,6 @@ static ssize_t power_supply_show_property(struct device *dev,
return sprintf(buf, "%s\n", health_text[value.intval]);
else if (off == POWER_SUPPLY_PROP_TECHNOLOGY)
return sprintf(buf, "%s\n", technology_text[value.intval]);
- else if (off == POWER_SUPPLY_PROP_CAPACITY_LEVEL)
- return sprintf(buf, "%s\n",
- capacity_level_text[value.intval]);
else if (off >= POWER_SUPPLY_PROP_MODEL_NAME)
return sprintf(buf, "%s\n", value.strval);
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