ssb: fast powerup delay calculation for PMU capable devices
Rafał Miłecki [Mon, 24 May 2010 19:50:24 +0000 (21:50 +0200)]
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>

drivers/ssb/driver_chipcommon.c

index 59ae76b..bda8514 100644 (file)
@@ -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;