package/kernel/mac80211/patches/311-v4.16-0004-brcmfmac-Clean-up-brcmf_sdiod_set_sbaddr_window.patch

   1 From b9b0d290bc0c90a5a262bc89c9d995988ea98669 Mon Sep 17 00:00:00 2001
   2 From: Ian Molton <ian@mnementh.co.uk>
   3 Date: Mon, 13 Nov 2017 21:35:41 +0100
   4 Subject: [PATCH] brcmfmac: Clean up brcmf_sdiod_set_sbaddr_window()
   5
   6 This function sets the address of the IO window used for
   7 SDIO accesses onto the backplane of the chip.
   8
   9 It currently uses 3 separate masks despite the full mask being
  10 defined in the code already. Remove the separate masks and clean up.
  11
  12 Signed-off-by: Ian Molton <ian@mnementh.co.uk>
  13 Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
  14 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  15 ---
  16  .../net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c   | 17 +++++------------
  17  drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h |  3 ---
  18  2 files changed, 5 insertions(+), 15 deletions(-)
  19
  20 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
  21 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
  22 @@ -410,23 +410,16 @@ static int
  23  brcmf_sdiod_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev, u32 address)
  24  {
  25         int err = 0, i;
  26 -       u8 addr[3];
  27 +       u32 addr;
  28
  29         if (sdiodev->state == BRCMF_SDIOD_NOMEDIUM)
  30                 return -ENOMEDIUM;
  31
  32 -       addr[0] = (address >> 8) & SBSDIO_SBADDRLOW_MASK;
  33 -       addr[1] = (address >> 16) & SBSDIO_SBADDRMID_MASK;
  34 -       addr[2] = (address >> 24) & SBSDIO_SBADDRHIGH_MASK;
  35 +       addr = (address & SBSDIO_SBWINDOW_MASK) >> 8;
  36
  37 -       for (i = 0; i < 3; i++) {
  38 -               brcmf_sdiod_regwb(sdiodev, SBSDIO_FUNC1_SBADDRLOW + i, addr[i],
  39 -                                 &err);
  40 -               if (err) {
  41 -                       brcmf_err("failed at addr: 0x%0x\n",
  42 -                                 SBSDIO_FUNC1_SBADDRLOW + i);
  43 -               }
  44 -       }
  45 +       for (i = 0 ; i < 3 && !err ; i++, addr >>= 8)
  46 +               brcmf_sdiod_regwb(sdiodev, SBSDIO_FUNC1_SBADDRLOW + i,
  47 +                                 addr & 0xff, &err);
  48
  49         return err;
  50  }
  51 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h
  52 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h
  53 @@ -133,9 +133,6 @@
  54
  55  /* valid bits in SBSDIO_FUNC1_SBADDRxxx regs */
  56
  57 -#define SBSDIO_SBADDRLOW_MASK          0x80    /* Valid bits in SBADDRLOW */
  58 -#define SBSDIO_SBADDRMID_MASK          0xff    /* Valid bits in SBADDRMID */
  59 -#define SBSDIO_SBADDRHIGH_MASK         0xffU   /* Valid bits in SBADDRHIGH */
  60  /* Address bits from SBADDR regs */
  61  #define SBSDIO_SBWINDOW_MASK           0xffff8000
  62