[PATCH 03/12] usb: mtu3: remove dummy wakeup debounce clocks

[Chunfeng Yun]

The wakeup debounce clocks for each ports in fact are not
needed, so remove them.

Signed-off-by: Chunfeng Yun <chunfeng....@mediatek.com>
---
 drivers/usb/mtu3/mtu3.h      |    4 ---
 drivers/usb/mtu3/mtu3_host.c |   57 +++---------------------------------------
 2 files changed, 4 insertions(+), 57 deletions(-)

diff --git a/drivers/usb/mtu3/mtu3.h b/drivers/usb/mtu3/mtu3.h
index 112723d..6d3278e 100644
--- a/drivers/usb/mtu3/mtu3.h
+++ b/drivers/usb/mtu3/mtu3.h
@@ -214,8 +214,6 @@ struct otg_switch_mtk {
  *             disable u3port0, bit1==1 to disable u3port1,... etc
  * @dbgfs_root: only used when supports manual dual-role switch via debugfs
  * @wakeup_en: it's true when supports remote wakeup in host mode
- * @wk_deb_p0: port0's wakeup debounce clock
- * @wk_deb_p1: it's optional, and depends on port1 is supported or not
  */
 struct ssusb_mtk {
        struct device *dev;
@@ -238,8 +236,6 @@ struct ssusb_mtk {
        struct dentry *dbgfs_root;
        /* usb wakeup for host mode */
        bool wakeup_en;
-       struct clk *wk_deb_p0;
-       struct clk *wk_deb_p1;
        struct regmap *pericfg;
 };
 
diff --git a/drivers/usb/mtu3/mtu3_host.c b/drivers/usb/mtu3/mtu3_host.c
index 4dd9508..edcc591 100644
--- a/drivers/usb/mtu3/mtu3_host.c
+++ b/drivers/usb/mtu3/mtu3_host.c
@@ -79,20 +79,6 @@ int ssusb_wakeup_of_property_parse(struct ssusb_mtk *ssusb,
        if (!ssusb->wakeup_en)
                return 0;
 
-       ssusb->wk_deb_p0 = devm_clk_get(dev, "wakeup_deb_p0");
-       if (IS_ERR(ssusb->wk_deb_p0)) {
-               dev_err(dev, "fail to get wakeup_deb_p0\n");
-               return PTR_ERR(ssusb->wk_deb_p0);
-       }
-
-       if (of_property_read_bool(dn, "wakeup_deb_p1")) {
-               ssusb->wk_deb_p1 = devm_clk_get(dev, "wakeup_deb_p1");
-               if (IS_ERR(ssusb->wk_deb_p1)) {
-                       dev_err(dev, "fail to get wakeup_deb_p1\n");
-                       return PTR_ERR(ssusb->wk_deb_p1);
-               }
-       }
-
        ssusb->pericfg = syscon_regmap_lookup_by_phandle(dn,
                                                "mediatek,syscon-wakeup");
        if (IS_ERR(ssusb->pericfg)) {
@@ -103,36 +89,6 @@ int ssusb_wakeup_of_property_parse(struct ssusb_mtk *ssusb,
        return 0;
 }
 
-static int ssusb_wakeup_clks_enable(struct ssusb_mtk *ssusb)
-{
-       int ret;
-
-       ret = clk_prepare_enable(ssusb->wk_deb_p0);
-       if (ret) {
-               dev_err(ssusb->dev, "failed to enable wk_deb_p0\n");
-               goto usb_p0_err;
-       }
-
-       ret = clk_prepare_enable(ssusb->wk_deb_p1);
-       if (ret) {
-               dev_err(ssusb->dev, "failed to enable wk_deb_p1\n");
-               goto usb_p1_err;
-       }
-
-       return 0;
-
-usb_p1_err:
-       clk_disable_unprepare(ssusb->wk_deb_p0);
-usb_p0_err:
-       return -EINVAL;
-}
-
-static void ssusb_wakeup_clks_disable(struct ssusb_mtk *ssusb)
-{
-       clk_disable_unprepare(ssusb->wk_deb_p1);
-       clk_disable_unprepare(ssusb->wk_deb_p0);
-}
-
 static void host_ports_num_get(struct ssusb_mtk *ssusb)
 {
        u32 xhci_cap;
@@ -286,19 +242,14 @@ void ssusb_host_exit(struct ssusb_mtk *ssusb)
 
 int ssusb_wakeup_enable(struct ssusb_mtk *ssusb)
 {
-       int ret = 0;
-
-       if (ssusb->wakeup_en) {
-               ret = ssusb_wakeup_clks_enable(ssusb);
+       if (ssusb->wakeup_en)
                ssusb_wakeup_ip_sleep_en(ssusb);
-       }
-       return ret;
+
+       return 0;
 }
 
 void ssusb_wakeup_disable(struct ssusb_mtk *ssusb)
 {
-       if (ssusb->wakeup_en) {
+       if (ssusb->wakeup_en)
                ssusb_wakeup_ip_sleep_dis(ssusb);
-               ssusb_wakeup_clks_disable(ssusb);
-       }
 }
-- 
1.7.9.5

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