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>

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;