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ssb: fast powerup delay calculation for PMU capable devices 

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Gábor Stefanik <netrolller.3d@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
hifive-unleashed-5.1
Rafał Miłecki 2010-05-24 21:50:24 +02:00 committed by John W. Linville
parent c35deb4e70
commit fd515941cf
1 changed files with 24 additions and 0 deletions
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24
drivers/ssb/driver_chipcommon.c
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@ -209,6 +209,24 @@ static void chipco_powercontrol_init(struct ssb_chipcommon *cc)
}
}
/* http://bcm-v4.sipsolutions.net/802.11/PmuFastPwrupDelay */
static u16 pmu_fast_powerup_delay(struct ssb_chipcommon *cc)
{
struct ssb_bus *bus = cc->dev->bus;
switch (bus->chip_id) {
case 0x4312:
case 0x4322:
case 0x4328:
return 7000;
case 0x4325:
/* TODO: */
default:
return 15000;
}
}
/* http://bcm-v4.sipsolutions.net/802.11/ClkctlFastPwrupDelay */
static void calc_fast_powerup_delay(struct ssb_chipcommon *cc)
{
struct ssb_bus *bus = cc->dev->bus;
@ -218,6 +236,12 @@ static void calc_fast_powerup_delay(struct ssb_chipcommon *cc)
if (bus->bustype != SSB_BUSTYPE_PCI)
return;
if (cc->capabilities & SSB_CHIPCO_CAP_PMU) {
cc->fast_pwrup_delay = pmu_fast_powerup_delay(cc);
return;
}
if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL))
return;