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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2006-01-10 19:19:37 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2006-01-12 18:48:16 +0100 |
| commit | db1019ca0548b263989bc98900eaf15107e533ad (patch) | |
| tree | 19c399ec6345d8e91103b3b3625238f914246364 /drivers/pcmcia/ds.c | |
| parent | f542ff6dd1a444c85cc245ac40aef5f703e48674 (diff) | |
| download | linux-db1019ca0548b263989bc98900eaf15107e533ad.tar.gz linux-db1019ca0548b263989bc98900eaf15107e533ad.tar.bz2 linux-db1019ca0548b263989bc98900eaf15107e533ad.zip | |
[PATCH] pcmcia: runtime powermanagement interface
With the "power/state" sysfs interface being deprecated, make another
one available which is compatible to what was discussed on the linux
PM mailinglist.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers/pcmcia/ds.c')
| -rw-r--r-- | drivers/pcmcia/ds.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 0252582b91cd..621ec459d27a 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -920,6 +920,37 @@ pcmcia_device_stringattr(prod_id2, prod_id[1]); pcmcia_device_stringattr(prod_id3, prod_id[2]); pcmcia_device_stringattr(prod_id4, prod_id[3]); + +static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct pcmcia_device *p_dev = to_pcmcia_dev(dev); + + if (p_dev->dev.power.power_state.event != PM_EVENT_ON) + return sprintf(buf, "off\n"); + else + return sprintf(buf, "on\n"); +} + +static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct pcmcia_device *p_dev = to_pcmcia_dev(dev); + int ret = 0; + + if (!count) + return -EINVAL; + + if ((p_dev->dev.power.power_state.event == PM_EVENT_ON) && + (!strncmp(buf, "off", 3))) + ret = dpm_runtime_suspend(dev, PMSG_SUSPEND); + else if ((p_dev->dev.power.power_state.event != PM_EVENT_ON) && + (!strncmp(buf, "on", 2))) + dpm_runtime_resume(dev); + + return ret ? ret : count; +} + + static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) { struct pcmcia_device *p_dev = to_pcmcia_dev(dev); @@ -945,8 +976,9 @@ static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct pcmcia_device *p_dev = to_pcmcia_dev(dev); - if (!count) - return -EINVAL; + + if (!count) + return -EINVAL; down(&p_dev->socket->skt_sem); p_dev->allow_func_id_match = 1; @@ -959,6 +991,7 @@ static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, static struct device_attribute pcmcia_dev_attrs[] = { __ATTR(function, 0444, func_show, NULL), + __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), __ATTR_RO(func_id), __ATTR_RO(manf_id), __ATTR_RO(card_id), |