target/linux/mediatek/patches-4.14/0130-usb-xhci-mtk-remove-dummy-wakeup-debounce-clocks.patch

   1 From 25adaf94e0fcbf6c1b47cb610edb7f5c23c53139 Mon Sep 17 00:00:00 2001
   2 From: Chunfeng Yun <chunfeng.yun@mediatek.com>
   3 Date: Fri, 13 Oct 2017 16:26:37 +0800
   4 Subject: [PATCH 130/224] usb: xhci-mtk: remove dummy wakeup debounce clocks
   5
   6 The wakeup debounce clocks for each ports in fact are not
   7 needed, so remove them.
   8
   9 Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
  10 Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
  11 Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
  12 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  13 ---
  14  drivers/usb/host/xhci-mtk.c | 33 ---------------------------------
  15  drivers/usb/host/xhci-mtk.h |  2 --
  16  2 files changed, 35 deletions(-)
  17
  18 --- a/drivers/usb/host/xhci-mtk.c
  19 +++ b/drivers/usb/host/xhci-mtk.c
  20 @@ -237,25 +237,8 @@ static int xhci_mtk_clks_enable(struct x
  21                 goto sys_clk_err;
  22         }
  23
  24 -       if (mtk->wakeup_src) {
  25 -               ret = clk_prepare_enable(mtk->wk_deb_p0);
  26 -               if (ret) {
  27 -                       dev_err(mtk->dev, "failed to enable wk_deb_p0\n");
  28 -                       goto usb_p0_err;
  29 -               }
  30 -
  31 -               ret = clk_prepare_enable(mtk->wk_deb_p1);
  32 -               if (ret) {
  33 -                       dev_err(mtk->dev, "failed to enable wk_deb_p1\n");
  34 -                       goto usb_p1_err;
  35 -               }
  36 -       }
  37         return 0;
  38
  39 -usb_p1_err:
  40 -       clk_disable_unprepare(mtk->wk_deb_p0);
  41 -usb_p0_err:
  42 -       clk_disable_unprepare(mtk->sys_clk);
  43  sys_clk_err:
  44         clk_disable_unprepare(mtk->ref_clk);
  45  ref_clk_err:
  46 @@ -264,10 +247,6 @@ ref_clk_err:
  47
  48  static void xhci_mtk_clks_disable(struct xhci_hcd_mtk *mtk)
  49  {
  50 -       if (mtk->wakeup_src) {
  51 -               clk_disable_unprepare(mtk->wk_deb_p1);
  52 -               clk_disable_unprepare(mtk->wk_deb_p0);
  53 -       }
  54         clk_disable_unprepare(mtk->sys_clk);
  55         clk_disable_unprepare(mtk->ref_clk);
  56  }
  57 @@ -371,18 +350,6 @@ static int usb_wakeup_of_property_parse(
  58         if (!mtk->wakeup_src)
  59                 return 0;
  60
  61 -       mtk->wk_deb_p0 = devm_clk_get(dev, "wakeup_deb_p0");
  62 -       if (IS_ERR(mtk->wk_deb_p0)) {
  63 -               dev_err(dev, "fail to get wakeup_deb_p0\n");
  64 -               return PTR_ERR(mtk->wk_deb_p0);
  65 -       }
  66 -
  67 -       mtk->wk_deb_p1 = devm_clk_get(dev, "wakeup_deb_p1");
  68 -       if (IS_ERR(mtk->wk_deb_p1)) {
  69 -               dev_err(dev, "fail to get wakeup_deb_p1\n");
  70 -               return PTR_ERR(mtk->wk_deb_p1);
  71 -       }
  72 -
  73         mtk->pericfg = syscon_regmap_lookup_by_phandle(dn,
  74                                                 "mediatek,syscon-wakeup");
  75         if (IS_ERR(mtk->pericfg)) {
  76 --- a/drivers/usb/host/xhci-mtk.h
  77 +++ b/drivers/usb/host/xhci-mtk.h
  78 @@ -126,8 +126,6 @@ struct xhci_hcd_mtk {
  79         struct regulator *vbus;
  80         struct clk *sys_clk;    /* sys and mac clock */
  81         struct clk *ref_clk;
  82 -       struct clk *wk_deb_p0;  /* port0's wakeup debounce clock */
  83 -       struct clk *wk_deb_p1;
  84         struct regmap *pericfg;
  85         struct phy **phys;
  86         int num_phys;