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authorRafał Miłecki <zajec5@gmail.com>2010-05-24 23:50:24 +0400
committerJohn W. Linville <linville@tuxdriver.com>2010-06-03 22:10:44 +0400
commitfd515941cfaf949b55086a36943afe085d7268e6 (patch)
treefeaabc312579a5588d0c28ae2dc949ef26bed911 /drivers/ssb/driver_chipcommon.c
parentc35deb4e70d52ed564c58569fe059dd7ca5f4eec (diff)
downloadlinux-fd515941cfaf949b55086a36943afe085d7268e6.tar.xz
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>
Diffstat (limited to 'drivers/ssb/driver_chipcommon.c')
-rw-r--r--drivers/ssb/driver_chipcommon.c24
1 files changed, 24 insertions, 0 deletions
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;