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mt76x0: use mt76_poll in mt76x0_set_wlan_state

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Use mt76_poll utility routine in mt76x0_set_wlan_state to check
if the PLL/XTAL is ready

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2018-09-28 13:38:44 +02:00 committed by Felix Fietkau
parent 62e04f8a31
commit 5b39435592
1 changed files with 3 additions and 15 deletions
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18
drivers/net/wireless/mediatek/mt76/mt76x0/init.c
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@ -43,7 +43,7 @@ static void mt76x0_vht_cap_mask(struct ieee80211_supported_band *sband)
static void
mt76x0_set_wlan_state(struct mt76x0_dev *dev, u32 val, bool enable)
{
int i;
u32 mask = MT_CMB_CTRL_XTAL_RDY | MT_CMB_CTRL_PLL_LD;
/* Note: we don't turn off WLAN_CLK because that makes the device
* not respond properly on the probe path.
@ -60,24 +60,12 @@ mt76x0_set_wlan_state(struct mt76x0_dev *dev, u32 val, bool enable)
mt76_wr(dev, MT_WLAN_FUN_CTRL, val);
udelay(20);
if (!enable)
return;
for (i = 200; i; i--) {
val = mt76_rr(dev, MT_CMB_CTRL);
if (val & MT_CMB_CTRL_XTAL_RDY && val & MT_CMB_CTRL_PLL_LD)
break;
udelay(20);
}
/* Note: vendor driver tries to disable/enable wlan here and retry
* but the code which does it is so buggy it must have never
* triggered, so don't bother.
*/
if (!i)
dev_err(dev->mt76.dev, "Error: PLL and XTAL check failed!\n");
if (enable && !mt76_poll(dev, MT_CMB_CTRL, mask, mask, 2000))
dev_err(dev->mt76.dev, "PLL and XTAL check failed\n");
}
void mt76x0_chip_onoff(struct mt76x0_dev *dev, bool enable, bool reset)