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rtl8xxxu: Fix LDPC RX hang issue on 8192eu

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Implement workaround for LDPC RX hands on 8192eu. This was inspired by
workaround found in the 8192eu vendor driver.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Jes Sorensen 2016-04-07 14:19:29 -04:00 committed by Kalle Valo
parent 3021e51f2b
commit e1394fe5f9
1 changed files with 10 additions and 0 deletions
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10
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
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@ -7234,6 +7234,16 @@ static int rtl8xxxu_init_device(struct ieee80211_hw *hw)
/* ack for xmit mgmt frames. */
rtl8xxxu_write32(priv, REG_FWHW_TXQ_CTRL, val32);
if (priv->rtl_chip == RTL8192E) {
/*
* Fix LDPC rx hang issue.
*/
val32 = rtl8xxxu_read32(priv, REG_AFE_MISC);
rtl8xxxu_write8(priv, REG_8192E_LDOV12_CTRL, 0x75);
val32 &= 0xfff00fff;
val32 |= 0x0007e000;
rtl8xxxu_write32(priv, REG_8192E_LDOV12_CTRL, val32);
}
exit:
return ret;
}