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authorChunfeng Yun <chunfeng.yun@mediatek.com>2017-10-13 17:10:39 +0800
committerFelipe Balbi <felipe.balbi@linux.intel.com>2017-10-19 10:38:11 +0300
commitd90223ac2aa7a71dcbdcbf075ac2c3bd59245f0a (patch)
treec3514527897c8696c6f0972d6fcf6d7929311a31 /drivers/usb/mtu3
parent076f1a8903d5dadf224f17be63a25bd75d860659 (diff)
usb: mtu3: remove dummy wakeup debounce clocks
The wakeup debounce clocks for each ports in fact are not needed, so remove them. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/mtu3')
-rw-r--r--drivers/usb/mtu3/mtu3.h4
-rw-r--r--drivers/usb/mtu3/mtu3_host.c57
2 files changed, 4 insertions, 57 deletions
diff --git a/drivers/usb/mtu3/mtu3.h b/drivers/usb/mtu3/mtu3.h
index 112723d6e7bc..6d3278e46431 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 4dd9508a60b5..edcc59148171 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);
- }
}