package/kernel/mac80211/patches/653-0009-rtl8xxxu-8188e-add-REG_TXDMA_OFFSET_CHK-quirk.patch

   1 From 3ab047939db70fcae2a7c5993a8feaf3ac413e35 Mon Sep 17 00:00:00 2001
   2 From: Jes Sorensen <Jes.Sorensen@redhat.com>
   3 Date: Wed, 29 Jun 2016 11:53:31 -0400
   4 Subject: [PATCH] rtl8xxxu: 8188e add REG_TXDMA_OFFSET_CHK quirk
   5
   6 Enable quirk allowing TX DMA to drop redundant data of packet. This is
   7 the same quirk enabled on gen2 parts.
   8
   9 Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
  10 ---
  11  drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c | 5 +++++
  12  1 file changed, 5 insertions(+)
  13
  14 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
  15 +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
  16 @@ -203,6 +203,7 @@ exit:
  17  static void rtl8188e_usb_quirks(struct rtl8xxxu_priv *priv)
  18  {
  19         u16 val16;
  20 +       u32 val32;
  21
  22         /*
  23          * Technically this is not a USB quirk, but a chip quirk.
  24 @@ -212,6 +213,10 @@ static void rtl8188e_usb_quirks(struct r
  25         val16 = rtl8xxxu_read16(priv, REG_CR);
  26         val16 |= (CR_MAC_TX_ENABLE | CR_MAC_RX_ENABLE);
  27         rtl8xxxu_write16(priv, REG_CR, val16);
  28 +
  29 +       val32 = rtl8xxxu_read32(priv, REG_TXDMA_OFFSET_CHK);
  30 +       val32 |= TXDMA_OFFSET_DROP_DATA_EN;
  31 +       rtl8xxxu_write32(priv, REG_TXDMA_OFFSET_CHK, val32);
  32  }
  33
  34  struct rtl8xxxu_fileops rtl8188eu_fops = {