diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0312-usb-dwc2-Disable-all-EP-s-on-disconnect.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0312-usb-dwc2-Disable-all-EP-s-on-disconnect.patch | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0312-usb-dwc2-Disable-all-EP-s-on-disconnect.patch b/target/linux/brcm2708/patches-4.19/950-0312-usb-dwc2-Disable-all-EP-s-on-disconnect.patch deleted file mode 100644 index 90004c8b0f..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0312-usb-dwc2-Disable-all-EP-s-on-disconnect.patch +++ /dev/null @@ -1,107 +0,0 @@ -From e87be7d6627b4dc1ebd9173b1bf29c16b4ebd93f Mon Sep 17 00:00:00 2001 -From: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> -Date: Wed, 19 Sep 2018 18:13:52 +0400 -Subject: [PATCH 312/703] usb: dwc2: Disable all EP's on disconnect - -commit dccf1bad4be7eaa096c1f3697bd37883f9a08ecb upstream. - -Disabling all EP's allow to reset EP's to initial state. -On disconnect disable all EP's instead of just killing -all requests. Because of some platform didn't catch -disconnect event, same stuff added to -dwc2_hsotg_core_init_disconnected() function when USB -reset detected on the bus. - -Changed from version 1: -Changed lock acquire flow in dwc2_hsotg_ep_disable() -function. - -Signed-off-by: Minas Harutyunyan <hminas@synopsys.com> -Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> ---- - drivers/usb/dwc2/gadget.c | 30 +++++++++++++++++++++++------- - 1 file changed, 23 insertions(+), 7 deletions(-) - ---- a/drivers/usb/dwc2/gadget.c -+++ b/drivers/usb/dwc2/gadget.c -@@ -3107,6 +3107,8 @@ static void kill_all_requests(struct dwc - dwc2_hsotg_txfifo_flush(hsotg, ep->fifo_index); - } - -+static int dwc2_hsotg_ep_disable(struct usb_ep *ep); -+ - /** - * dwc2_hsotg_disconnect - disconnect service - * @hsotg: The device state. -@@ -3125,13 +3127,12 @@ void dwc2_hsotg_disconnect(struct dwc2_h - hsotg->connected = 0; - hsotg->test_mode = 0; - -+ /* all endpoints should be shutdown */ - for (ep = 0; ep < hsotg->num_of_eps; ep++) { - if (hsotg->eps_in[ep]) -- kill_all_requests(hsotg, hsotg->eps_in[ep], -- -ESHUTDOWN); -+ dwc2_hsotg_ep_disable(&hsotg->eps_in[ep]->ep); - if (hsotg->eps_out[ep]) -- kill_all_requests(hsotg, hsotg->eps_out[ep], -- -ESHUTDOWN); -+ dwc2_hsotg_ep_disable(&hsotg->eps_out[ep]->ep); - } - - call_gadget(hsotg, disconnect); -@@ -3189,13 +3190,23 @@ void dwc2_hsotg_core_init_disconnected(s - u32 val; - u32 usbcfg; - u32 dcfg = 0; -+ int ep; - - /* Kill any ep0 requests as controller will be reinitialized */ - kill_all_requests(hsotg, hsotg->eps_out[0], -ECONNRESET); - -- if (!is_usb_reset) -+ if (!is_usb_reset) { - if (dwc2_core_reset(hsotg, true)) - return; -+ } else { -+ /* all endpoints should be shutdown */ -+ for (ep = 1; ep < hsotg->num_of_eps; ep++) { -+ if (hsotg->eps_in[ep]) -+ dwc2_hsotg_ep_disable(&hsotg->eps_in[ep]->ep); -+ if (hsotg->eps_out[ep]) -+ dwc2_hsotg_ep_disable(&hsotg->eps_out[ep]->ep); -+ } -+ } - - /* - * we must now enable ep0 ready for host detection and then -@@ -3996,6 +4007,7 @@ static int dwc2_hsotg_ep_disable(struct - unsigned long flags; - u32 epctrl_reg; - u32 ctrl; -+ int locked; - - dev_dbg(hsotg->dev, "%s(ep %p)\n", __func__, ep); - -@@ -4011,7 +4023,9 @@ static int dwc2_hsotg_ep_disable(struct - - epctrl_reg = dir_in ? DIEPCTL(index) : DOEPCTL(index); - -- spin_lock_irqsave(&hsotg->lock, flags); -+ locked = spin_is_locked(&hsotg->lock); -+ if (!locked) -+ spin_lock_irqsave(&hsotg->lock, flags); - - ctrl = dwc2_readl(hsotg, epctrl_reg); - -@@ -4035,7 +4049,9 @@ static int dwc2_hsotg_ep_disable(struct - hs_ep->fifo_index = 0; - hs_ep->fifo_size = 0; - -- spin_unlock_irqrestore(&hsotg->lock, flags); -+ if (!locked) -+ spin_unlock_irqrestore(&hsotg->lock, flags); -+ - return 0; - } - |