diff options
Diffstat (limited to 'target/linux/mediatek/patches-4.14/0105-usb-mtu3-remove-dummy-wakeup-debounce-clocks.patch')
| -rw-r--r-- | target/linux/mediatek/patches-4.14/0105-usb-mtu3-remove-dummy-wakeup-debounce-clocks.patch | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-4.14/0105-usb-mtu3-remove-dummy-wakeup-debounce-clocks.patch b/target/linux/mediatek/patches-4.14/0105-usb-mtu3-remove-dummy-wakeup-debounce-clocks.patch new file mode 100644 index 0000000000..adf1cec90b --- /dev/null +++ b/target/linux/mediatek/patches-4.14/0105-usb-mtu3-remove-dummy-wakeup-debounce-clocks.patch @@ -0,0 +1,126 @@ +From 50005796f146351dc9c34bbf8898b305c562e964 Mon Sep 17 00:00:00 2001 +From: Chunfeng Yun <chunfeng.yun@mediatek.com> +Date: Fri, 13 Oct 2017 17:10:39 +0800 +Subject: [PATCH 105/224] 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> +--- + 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 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); +- } + } +-- +2.11.0 + |