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Commit fd515941 authored by Rafał Miłecki's avatar Rafał Miłecki Committed by John W. Linville
Browse files

ssb: fast powerup delay calculation for PMU capable devices 



Signed-off-by: default avatarRafał Miłecki <zajec5@gmail.com>
Acked-by: default avatarGábor Stefanik <netrolller.3d@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent c35deb4e

drivers/ssb/driver_chipcommon.c

+24 −0
Original line number Diff line number Diff line
@@ -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;