package/kernel/mac80211/patches/652-0061-rtl8xxxu-Correct-power-down-sequence-for-8188eu.patch

   1 From 503e2c16e21b49e912bcbe6af5cda34b65e30502 Mon Sep 17 00:00:00 2001
   2 From: Jes Sorensen <Jes.Sorensen@redhat.com>
   3 Date: Tue, 30 Aug 2016 17:23:35 -0400
   4 Subject: [PATCH] rtl8xxxu: Correct power down sequence for 8188eu
   5
   6 This matches the vendor driver more correctly
   7
   8 Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
   9 ---
  10  .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c | 26 ++++++++++++++++------
  11  1 file changed, 19 insertions(+), 7 deletions(-)
  12
  13 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
  14 +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
  15 @@ -1083,7 +1083,8 @@ static void rtl8188e_disabled_to_emu(str
  16         u16 val16;
  17
  18         val16 = rtl8xxxu_read16(priv, REG_APS_FSMCO);
  19 -       val16 &= ~(APS_FSMCO_PFM_WOWL | APS_FSMCO_ENABLE_POWERDOWN);
  20 +       val16 &= ~(APS_FSMCO_PFM_WOWL | APS_FSMCO_ENABLE_POWERDOWN |
  21 +               APS_FSMCO_HW_POWERDOWN);
  22         rtl8xxxu_write16(priv, REG_APS_FSMCO, val16);
  23  }
  24
  25 @@ -1196,15 +1197,26 @@ static int rtl8188eu_emu_to_disabled(str
  26  {
  27         u8 val8;
  28
  29 -       /* 0x04[12:11] = 01 enable WL suspend */
  30 -       val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 2);
  31 -       val8 &= ~BIT(0);
  32 -       rtl8xxxu_write8(priv, REG_APS_FSMCO + 2, val8);
  33 +       val8 = rtl8xxxu_read8(priv, REG_AFE_XTAL_CTRL + 2);
  34 +       val8 |= BIT(7);
  35 +       rtl8xxxu_write8(priv, REG_AFE_XTAL_CTRL + 2, val8);
  36
  37         val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1);
  38 -       val8 |= BIT(7);
  39 +       val8 &= ~(BIT(3) | BIT(4));
  40 +       val8 |= BIT(3);
  41         rtl8xxxu_write8(priv, REG_APS_FSMCO + 1, val8);
  42
  43 +       rtl8xxxu_write8(priv, REG_APS_FSMCO + 3, 0x00);
  44 +
  45 +       val8 = rtl8xxxu_read8(priv, REG_GPIO_MUXCFG + 1);
  46 +       val8 &= ~BIT(4);
  47 +       rtl8xxxu_write8(priv, REG_GPIO_MUXCFG + 1, val8);
  48 +
  49 +       /* Set USB suspend enable local register 0xfe10[4]=1 */
  50 +       val8 = rtl8xxxu_read8(priv, 0xfe10);
  51 +       val8 |= BIT(4);
  52 +       rtl8xxxu_write8(priv, 0xfe10, val8);
  53 +
  54         return 0;
  55  }
  56
  57 @@ -1339,7 +1351,7 @@ void rtl8188eu_power_off(struct rtl8xxxu
  58         rtl8xxxu_write8(priv, REG_GPIO_PIN_CTRL + 2, 0xff);
  59
  60         val8 = rtl8xxxu_read8(priv, REG_GPIO_IO_SEL);
  61 -       rtl8xxxu_write8(priv, REG_GPIO_IO_SEL + 1, val8 << 4);
  62 +       rtl8xxxu_write8(priv, REG_GPIO_IO_SEL, val8 << 4);
  63         val8 = rtl8xxxu_read8(priv, REG_GPIO_IO_SEL + 1);
  64         rtl8xxxu_write8(priv, REG_GPIO_IO_SEL + 1, val8 | 0x0f);
  65