brcm2708: organize kernel patches

[openwrt/staging/chunkeey.git] / target / linux / brcm2708 / patches-4.19 / 950-0548-usb-xhci-hack-xhci_urb_enqueue-to-support-hid.mousep.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0548-usb-xhci-hack-xhci_urb_enqueue-to-support-hid.mousep.patch b/target/linux/brcm2708/patches-4.19/950-0548-usb-xhci-hack-xhci_urb_enqueue-to-support-hid.mousep.patch
deleted file mode 100644 (file)
index bd33271..0000000
--- a/target/linux/brcm2708/patches-4.19/950-0548-usb-xhci-hack-xhci_urb_enqueue-to-support-hid.mousep.patch
+++ /dev/null
@@ -1,122 +0,0 @@
-From fa776ef749c924cd3ff3ffa257d7a63a27224399 Mon Sep 17 00:00:00 2001
-From: Jonathan Bell <jonathan@raspberrypi.org>
-Date: Thu, 30 May 2019 10:38:40 +0100
-Subject: [PATCH 548/806] usb: xhci: hack xhci_urb_enqueue to support
- hid.mousepoll behaviour
-
-xHCI creates endpoint contexts directly from the device's endpoint
-data, so submitting URBs with urb->interval different from the hardware
-interval has no effect.
-
-Add an explicit reconfiguration of the endpoint context when requested,
-which will happen only when the interval is different from the cached
-value. In practice, the reconfiguration only happens on the first URB
-submitted for the endpoint.
-
-Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
----
- drivers/usb/host/xhci.c | 86 +++++++++++++++++++++++++++++++++++++++++
- 1 file changed, 86 insertions(+)
-
---- a/drivers/usb/host/xhci.c
-+++ b/drivers/usb/host/xhci.c
-@@ -1425,6 +1425,87 @@ command_cleanup:
- }
- 
- /*
-+ * RPI: Fixup endpoint intervals when requested
-+ * - Check interval versus the (cached) endpoint context
-+ * - set the endpoint interval to the new value
-+ * - force an endpoint configure command
-+ */
-+static void xhci_fixup_interval(struct xhci_hcd *xhci, struct urb *urb,
-+                              unsigned int slot_id, unsigned int ep_index)
-+{
-+      struct xhci_ep_ctx *ep_ctx_out, *ep_ctx_in;
-+      struct xhci_command *command;
-+      struct xhci_input_control_ctx *ctrl_ctx;
-+      struct xhci_virt_device *vdev;
-+      int xhci_interval, ep_interval;
-+      int ret;
-+      unsigned long flags;
-+      u32 ep_info_tmp;
-+
-+      spin_lock_irqsave(&xhci->lock, flags);
-+
-+      vdev = xhci->devs[slot_id];
-+      /* Get context-derived endpoint interval */
-+      ep_ctx_out = xhci_get_ep_ctx(xhci, vdev->out_ctx, ep_index);
-+      ep_ctx_in = xhci_get_ep_ctx(xhci, vdev->in_ctx, ep_index);
-+      xhci_interval = EP_INTERVAL_TO_UFRAMES(le32_to_cpu(ep_ctx_out->ep_info));
-+      ep_interval = urb->interval * 8;
-+
-+      if (ep_interval == xhci_interval) {
-+              spin_unlock_irqrestore(&xhci->lock, flags);
-+              return;
-+      }
-+
-+      xhci_dbg(xhci, "Fixup interval ep_interval=%d xhci_interval=%d\n",
-+               ep_interval, xhci_interval);
-+      command = xhci_alloc_command_with_ctx(xhci, true, GFP_ATOMIC);
-+      if (!command) {
-+              /* Failure here is benign, poll at the original rate */
-+              spin_unlock_irqrestore(&xhci->lock, flags);
-+              return;
-+      }
-+
-+      /* xHCI uses exponents for intervals... */
-+      xhci_interval = fls(ep_interval) - 1;
-+      xhci_interval = clamp_val(xhci_interval, 3, 10);
-+      ep_info_tmp = le32_to_cpu(ep_ctx_out->ep_info);
-+      ep_info_tmp &= ~EP_INTERVAL(255);
-+      ep_info_tmp |= EP_INTERVAL(xhci_interval);
-+
-+      /* Keep the endpoint context up-to-date while issuing the command. */
-+      xhci_endpoint_copy(xhci, vdev->in_ctx,
-+                         vdev->out_ctx, ep_index);
-+      ep_ctx_in->ep_info = cpu_to_le32(ep_info_tmp);
-+
-+      /*
-+       * We need to drop the lock, so take an explicit copy
-+       * of the ep context.
-+       */
-+      xhci_endpoint_copy(xhci, command->in_ctx, vdev->in_ctx, ep_index);
-+
-+      ctrl_ctx = xhci_get_input_control_ctx(command->in_ctx);
-+      if (!ctrl_ctx) {
-+              xhci_warn(xhci,
-+                        "%s: Could not get input context, bad type.\n",
-+                        __func__);
-+              spin_unlock_irqrestore(&xhci->lock, flags);
-+              xhci_free_command(xhci, command);
-+              return;
-+      }
-+      ctrl_ctx->add_flags = xhci_get_endpoint_flag_from_index(ep_index);
-+      ctrl_ctx->drop_flags = 0;
-+
-+      spin_unlock_irqrestore(&xhci->lock, flags);
-+
-+      ret = xhci_configure_endpoint(xhci, urb->dev, command,
-+                                    false, false);
-+      if (ret)
-+              xhci_warn(xhci, "%s: Configure endpoint failed: %d\n",
-+                        __func__, ret);
-+      xhci_free_command(xhci, command);
-+}
-+
-+/*
-  * non-error returns are a promise to giveback() the urb later
-  * we drop ownership so next owner (or urb unlink) can get it
-  */
-@@ -1492,6 +1573,11 @@ static int xhci_urb_enqueue(struct usb_h
-               }
-       }
- 
-+      if (usb_endpoint_xfer_int(&urb->ep->desc) &&
-+          (urb->dev->speed == USB_SPEED_FULL ||
-+           urb->dev->speed == USB_SPEED_LOW))
-+              xhci_fixup_interval(xhci, urb, slot_id, ep_index);
-+
-       spin_lock_irqsave(&xhci->lock, flags);
- 
-       if (xhci->xhc_state & XHCI_STATE_DYING) {