diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0313-usb-dwc2-Fix-disable-all-EP-s-on-disconnect.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0313-usb-dwc2-Fix-disable-all-EP-s-on-disconnect.patch | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0313-usb-dwc2-Fix-disable-all-EP-s-on-disconnect.patch b/target/linux/brcm2708/patches-4.19/950-0313-usb-dwc2-Fix-disable-all-EP-s-on-disconnect.patch deleted file mode 100644 index a0b0cad315..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0313-usb-dwc2-Fix-disable-all-EP-s-on-disconnect.patch +++ /dev/null @@ -1,152 +0,0 @@ -From c28c22b965a3c129fd4ba70a5e6b1b2353282d46 Mon Sep 17 00:00:00 2001 -From: Minas Harutyunyan <minas.harutyunyan@synopsys.com> -Date: Mon, 10 Dec 2018 18:09:32 +0400 -Subject: [PATCH 313/703] usb: dwc2: Fix disable all EP's on disconnect -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -commit 4fe4f9fecc36956fd53c8edf96dd0c691ef98ff9 upstream. - -Disabling all EP's allow to reset EP's to initial state. -Introduced new function dwc2_hsotg_ep_disable_lock() which -before calling dwc2_hsotg_ep_disable() function acquire -hsotg->lock and release on exiting. -From dwc2_hsotg_ep_disable() function removed acquiring -hsotg->lock. -In dwc2_hsotg_core_init_disconnected() function when USB -reset interrupt asserted disabling all ep’s by -dwc2_hsotg_ep_disable() function. -This updates eliminating sparse imbalance warnings. - -Reverted changes in dwc2_hostg_disconnect() function. -Introduced new function dwc2_hsotg_ep_disable_lock(). -Changed dwc2_hsotg_ep_ops. Now disable point to -dwc2_hsotg_ep_disable_lock() function. -In functions dwc2_hsotg_udc_stop() and dwc2_hsotg_suspend() -dwc2_hsotg_ep_disable() function replaced by -dwc2_hsotg_ep_disable_lock() function. -In dwc2_hsotg_ep_disable() function removed acquiring -of hsotg->lock. - -Fixes: dccf1bad4be7 ("usb: dwc2: Disable all EP's on disconnect") -Signed-off-by: Minas Harutyunyan <hminas@synopsys.com> -Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> ---- - drivers/usb/dwc2/gadget.c | 41 ++++++++++++++++++++++----------------- - 1 file changed, 23 insertions(+), 18 deletions(-) - ---- a/drivers/usb/dwc2/gadget.c -+++ b/drivers/usb/dwc2/gadget.c -@@ -3107,8 +3107,6 @@ 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. -@@ -3130,9 +3128,11 @@ void dwc2_hsotg_disconnect(struct dwc2_h - /* all endpoints should be shutdown */ - for (ep = 0; ep < hsotg->num_of_eps; ep++) { - if (hsotg->eps_in[ep]) -- dwc2_hsotg_ep_disable(&hsotg->eps_in[ep]->ep); -+ kill_all_requests(hsotg, hsotg->eps_in[ep], -+ -ESHUTDOWN); - if (hsotg->eps_out[ep]) -- dwc2_hsotg_ep_disable(&hsotg->eps_out[ep]->ep); -+ kill_all_requests(hsotg, hsotg->eps_out[ep], -+ -ESHUTDOWN); - } - - call_gadget(hsotg, disconnect); -@@ -3176,6 +3176,7 @@ static void dwc2_hsotg_irq_fifoempty(str - GINTSTS_PTXFEMP | \ - GINTSTS_RXFLVL) - -+static int dwc2_hsotg_ep_disable(struct usb_ep *ep); - /** - * dwc2_hsotg_core_init - issue softreset to the core - * @hsotg: The device state -@@ -4004,10 +4005,8 @@ static int dwc2_hsotg_ep_disable(struct - struct dwc2_hsotg *hsotg = hs_ep->parent; - int dir_in = hs_ep->dir_in; - int index = hs_ep->index; -- unsigned long flags; - u32 epctrl_reg; - u32 ctrl; -- int locked; - - dev_dbg(hsotg->dev, "%s(ep %p)\n", __func__, ep); - -@@ -4023,10 +4022,6 @@ static int dwc2_hsotg_ep_disable(struct - - epctrl_reg = dir_in ? DIEPCTL(index) : DOEPCTL(index); - -- locked = spin_is_locked(&hsotg->lock); -- if (!locked) -- spin_lock_irqsave(&hsotg->lock, flags); -- - ctrl = dwc2_readl(hsotg, epctrl_reg); - - if (ctrl & DXEPCTL_EPENA) -@@ -4049,12 +4044,22 @@ static int dwc2_hsotg_ep_disable(struct - hs_ep->fifo_index = 0; - hs_ep->fifo_size = 0; - -- if (!locked) -- spin_unlock_irqrestore(&hsotg->lock, flags); -- - return 0; - } - -+static int dwc2_hsotg_ep_disable_lock(struct usb_ep *ep) -+{ -+ struct dwc2_hsotg_ep *hs_ep = our_ep(ep); -+ struct dwc2_hsotg *hsotg = hs_ep->parent; -+ unsigned long flags; -+ int ret; -+ -+ spin_lock_irqsave(&hsotg->lock, flags); -+ ret = dwc2_hsotg_ep_disable(ep); -+ spin_unlock_irqrestore(&hsotg->lock, flags); -+ return ret; -+} -+ - /** - * on_list - check request is on the given endpoint - * @ep: The endpoint to check. -@@ -4202,7 +4207,7 @@ static int dwc2_hsotg_ep_sethalt_lock(st - - static const struct usb_ep_ops dwc2_hsotg_ep_ops = { - .enable = dwc2_hsotg_ep_enable, -- .disable = dwc2_hsotg_ep_disable, -+ .disable = dwc2_hsotg_ep_disable_lock, - .alloc_request = dwc2_hsotg_ep_alloc_request, - .free_request = dwc2_hsotg_ep_free_request, - .queue = dwc2_hsotg_ep_queue_lock, -@@ -4342,9 +4347,9 @@ static int dwc2_hsotg_udc_stop(struct us - /* 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); -+ dwc2_hsotg_ep_disable_lock(&hsotg->eps_in[ep]->ep); - if (hsotg->eps_out[ep]) -- dwc2_hsotg_ep_disable(&hsotg->eps_out[ep]->ep); -+ dwc2_hsotg_ep_disable_lock(&hsotg->eps_out[ep]->ep); - } - - spin_lock_irqsave(&hsotg->lock, flags); -@@ -4792,9 +4797,9 @@ int dwc2_hsotg_suspend(struct dwc2_hsotg - - for (ep = 0; ep < hsotg->num_of_eps; ep++) { - if (hsotg->eps_in[ep]) -- dwc2_hsotg_ep_disable(&hsotg->eps_in[ep]->ep); -+ dwc2_hsotg_ep_disable_lock(&hsotg->eps_in[ep]->ep); - if (hsotg->eps_out[ep]) -- dwc2_hsotg_ep_disable(&hsotg->eps_out[ep]->ep); -+ dwc2_hsotg_ep_disable_lock(&hsotg->eps_out[ep]->ep); - } - } - |