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f86c6b3138
* Moving Rockchip 32bit to 5.8.y xt-q8l-v10 seems to be broken. I did a quick scan but couldn't resolve it. @paolosabatino * Add wifi patches for 5.8.y * [rockchip] Fixed xt-q8l-v10 DTS, reworked ath9k driver patch for 5.8.y (#2184) * Fixed xt-q8l-v10 device tree to work on kernel 5.8.y on rockchip-current and -dev * Reworked ath9k driver patch to compile on kernel 5.8.y for rockchip-current and -dev * Add also wifi patches to DEV kernel Co-authored-by: Paolo <paolo.sabatino@gmail.com>
102 lines
3.6 KiB
Diff
102 lines
3.6 KiB
Diff
FROM: Solidhal <hal@halemmerich.com>
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This patch reverses commit 2b721118b7821107757eb1d37af4b60e877b27e7, as can bee seen here:
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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2b721118b7821107757eb1d37af4b60e877b27e7
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This commit caused issues on veyron speedy with ath9k and dwc2 drivers. Any ath9k device (ar9271)
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would intermittently work, most of the time ending in errors as can bee seen here:
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https://github.com/SolidHal/PrawnOS/issues/38
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This commit fixes that issue.
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This is only a temporary work around while a permenant fix is found, as this commit seems to only cause issues
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with dwc2
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diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
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index 3f563e02d..903851481 100644
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--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
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+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
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@@ -118,10 +118,10 @@ static int hif_usb_send_regout(struct hif_device_usb *hif_dev,
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cmd->skb = skb;
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cmd->hif_dev = hif_dev;
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- usb_fill_int_urb(urb, hif_dev->udev,
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- usb_sndintpipe(hif_dev->udev, USB_REG_OUT_PIPE),
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+ usb_fill_bulk_urb(urb, hif_dev->udev,
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+ usb_sndbulkpipe(hif_dev->udev, USB_REG_OUT_PIPE),
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skb->data, skb->len,
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- hif_usb_regout_cb, cmd, 1);
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+ hif_usb_regout_cb, cmd);
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usb_anchor_urb(urb, &hif_dev->regout_submitted);
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ret = usb_submit_urb(urb, GFP_KERNEL);
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@@ -735,11 +735,11 @@ static void ath9k_hif_usb_reg_in_cb(struct urb *urb)
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rx_buf->skb = nskb;
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- usb_fill_int_urb(urb, hif_dev->udev,
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- usb_rcvintpipe(hif_dev->udev,
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+ usb_fill_bulk_urb(urb, hif_dev->udev,
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+ usb_rcvbulkpipe(hif_dev->udev,
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USB_REG_IN_PIPE),
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nskb->data, MAX_REG_IN_BUF_SIZE,
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- ath9k_hif_usb_reg_in_cb, rx_buf, 1);
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+ ath9k_hif_usb_reg_in_cb, rx_buf);
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}
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resubmit:
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@@ -944,11 +944,11 @@ static int ath9k_hif_usb_alloc_reg_in_urbs(struct hif_device_usb *hif_dev)
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rx_buf->hif_dev = hif_dev;
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rx_buf->skb = skb;
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- usb_fill_int_urb(urb, hif_dev->udev,
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- usb_rcvintpipe(hif_dev->udev,
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+ usb_fill_bulk_urb(urb, hif_dev->udev,
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+ usb_rcvbulkpipe(hif_dev->udev,
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USB_REG_IN_PIPE),
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skb->data, MAX_REG_IN_BUF_SIZE,
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- ath9k_hif_usb_reg_in_cb, rx_buf, 1);
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+ ath9k_hif_usb_reg_in_cb, skb);
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/* Anchor URB */
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usb_anchor_urb(urb, &hif_dev->reg_in_submitted);
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@@ -1069,7 +1069,9 @@ static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev)
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static int ath9k_hif_usb_dev_init(struct hif_device_usb *hif_dev)
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{
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- int ret;
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+ struct usb_host_interface *alt = &hif_dev->interface->altsetting[0];
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+ struct usb_endpoint_descriptor *endp;
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+ int ret, idx;
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ret = ath9k_hif_usb_download_fw(hif_dev);
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if (ret) {
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@@ -1079,6 +1081,20 @@ static int ath9k_hif_usb_dev_init(struct hif_device_usb *hif_dev)
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return ret;
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}
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+ /* On downloading the firmware to the target, the USB descriptor of EP4
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+ * is 'patched' to change the type of the endpoint to Bulk. This will
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+ * bring down CPU usage during the scan period.
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+ */
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+ for (idx = 0; idx < alt->desc.bNumEndpoints; idx++) {
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+ endp = &alt->endpoint[idx].desc;
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+ if ((endp->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
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+ == USB_ENDPOINT_XFER_INT) {
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+ endp->bmAttributes &= ~USB_ENDPOINT_XFERTYPE_MASK;
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+ endp->bmAttributes |= USB_ENDPOINT_XFER_BULK;
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+ endp->bInterval = 0;
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+ }
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+ }
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+
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/* Alloc URBs */
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ret = ath9k_hif_usb_alloc_urbs(hif_dev);
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if (ret) {
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@@ -1353,7 +1369,7 @@ static void ath9k_hif_usb_reboot(struct usb_device *udev)
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if (!buf)
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return;
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- ret = usb_interrupt_msg(udev, usb_sndintpipe(udev, USB_REG_OUT_PIPE),
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+ ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, USB_REG_OUT_PIPE),
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buf, 4, NULL, USB_MSG_TIMEOUT);
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if (ret)
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dev_err(&udev->dev, "ath9k_htc: USB reboot failed\n");
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