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46 lines
1.6 KiB
46 lines
1.6 KiB
From 93064d0ae3e9d97c03a3aabd71e6048e1ac82f46 Mon Sep 17 00:00:00 2001
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From: Jes Sorensen <Jes.Sorensen@redhat.com>
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Date: Fri, 30 Sep 2016 19:18:34 -0400
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Subject: [PATCH] rtl8xxxu: Fix rtl8192eu driver reload issue
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The 8192eu suffered from two issues when reloading the driver.
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The same problems as with the 8723bu where REG_RX_WAIT_CCA bits 22 and
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23 didn't get set in rtl8192e_enable_rf().
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In addition it also seems prone to issues when setting REG_RF_CTRL to
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0 intead of just disabling the RF_ENABLE bit. Similar to what was
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causing issues with the 8188eu.
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With this patch I can successfully reload the driver and reassociate
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to an APi with an 8192eu dongle.
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Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
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---
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drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c | 8 +++++++-
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1 file changed, 7 insertions(+), 1 deletion(-)
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--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
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+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
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@@ -1461,7 +1461,9 @@ static int rtl8192eu_active_to_emu(struc
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int count, ret = 0;
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/* Turn off RF */
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- rtl8xxxu_write8(priv, REG_RF_CTRL, 0);
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+ val8 = rtl8xxxu_read8(priv, REG_RF_CTRL);
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+ val8 &= ~RF_ENABLE;
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+ rtl8xxxu_write8(priv, REG_RF_CTRL, val8);
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/* Switch DPDT_SEL_P output from register 0x65[2] */
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val8 = rtl8xxxu_read8(priv, REG_LEDCFG2);
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@@ -1593,6 +1595,10 @@ static void rtl8192e_enable_rf(struct rt
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u32 val32;
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u8 val8;
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+ val32 = rtl8xxxu_read32(priv, REG_RX_WAIT_CCA);
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+ val32 |= (BIT(22) | BIT(23));
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+ rtl8xxxu_write32(priv, REG_RX_WAIT_CCA, val32);
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+
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val8 = rtl8xxxu_read8(priv, REG_GPIO_MUXCFG);
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val8 |= BIT(5);
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rtl8xxxu_write8(priv, REG_GPIO_MUXCFG, val8);
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