From fd515941cfaf949b55086a36943afe085d7268e6 Mon Sep 17 00:00:00 2001 From: Rafał Miłecki Date: Mon, 24 May 2010 21:50:24 +0200 Subject: ssb: fast powerup delay calculation for PMU capable devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Acked-by: Gábor Stefanik Signed-off-by: John W. Linville --- drivers/ssb/driver_chipcommon.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'drivers/ssb/driver_chipcommon.c') diff --git a/drivers/ssb/driver_chipcommon.c b/drivers/ssb/driver_chipcommon.c index 59ae76bace14..bda851427780 100644 --- a/drivers/ssb/driver_chipcommon.c +++ b/drivers/ssb/driver_chipcommon.c @@ -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; -- cgit v1.2.3