kernel 5.10.18

2 files changed, 51 insertions, 58 deletions

diff --git a/SOURCES/bluetooth-btusb-qca-fix.patch b/SOURCES/bluetooth-btusb-qca-fix.patch
new file mode 100644
index 0000000..d770639
--- /dev/null
+++ b/SOURCES/bluetooth-btusb-qca-fix.patch
@@ -0,0 +1,51 @@
+From 28ddef379ecc0ab1ae646f6442cfa839ab9a15b2 Mon Sep 17 00:00:00 2001
+From: Hui Wang <hui.wang@canonical.com>
+Date: Mon, 8 Feb 2021 13:02:37 +0800
+Subject: [PATCH 5.12 regression fix] Bluetooth: btusb: Some Qualcomm Bluetooth
+ adapters stop working
+
+This issue starts from linux-5.10-rc1, I reproduced this issue on my
+Dell Inspiron 7447 with BT adapter 0cf3:e005, the kernel will print
+out: "Bluetooth: hci0: don't support firmware rome 0x31010000", and
+someone else also reported the similar issue to bugzilla #211571.
+
+I found this is a regression introduced by 'commit b40f58b97386
+("Bluetooth: btusb: Add Qualcomm Bluetooth SoC WCN6855 support"), the
+patch assumed that if high ROM version is not zero, it is an adapter
+on WCN6855, but many old adapters don't need to load rampatch or nvm,
+and they have non-zero high ROM version.
+
+To fix it, let the driver match the rom_version in the
+qca_devices_table first, if there is no entry matched, check the
+high ROM version, if it is not zero, we assume this adapter is ready
+to work and no need to load rampatch and nvm like previously.
+
+BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=211571
+Fixes: b40f58b97386 ("Bluetooth: btusb: Add Qualcomm Bluetooth SoC WCN6855 support")
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
+---
+ drivers/bluetooth/btusb.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
+index 80468745d5c5..1c128de99abd 100644
+--- a/drivers/bluetooth/btusb.c
++++ b/drivers/bluetooth/btusb.c
+@@ -3693,6 +3693,13 @@ static int btusb_setup_qca(struct hci_dev *hdev)
+ 			info = &qca_devices_table[i];
+ 	}
+ 	if (!info) {
++		/* If the rom_version is not matched in the qca_devices_table
++		 * and the high ROM version is not zero, we assume this chip no
++		 * need to load the rampatch and nvm.
++		 */
++		if (ver_rom & ~0xffffU)
++			return 0;
++
+ 		bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
+ 		return -ENODEV;
+ 	}
+-- 
+2.30.1
+
diff --git a/SOURCES/media-pwc-fix-the-urb-buffer-allocation.patch b/SOURCES/media-pwc-fix-the-urb-buffer-allocation.patch
deleted file mode 100644
index 413868b..0000000
--- a/SOURCES/media-pwc-fix-the-urb-buffer-allocation.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-From MAILER-DAEMON Wed Jan 27 14:16:57 2021
-From: Takashi Iwai <tiwai@suse.de>
-To: Hans Verkuil <hverkuil@xs4all.nl>
-Cc: Mauro Carvalho Chehab <mchehab@kernel.org>, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org
-Subject: [PATCH] media: pwc: Fix the URB buffer allocation
-Date: Thu, 21 Jan 2021 21:28:55 +0100
-Message-Id: <20210121202855.17400-1-tiwai@suse.de>
-List-ID: <linux-media.vger.kernel.org>
-X-Mailing-List: linux-media@vger.kernel.org
-MIME-Version: 1.0
-Content-Type: text/plain; charset="utf-8"
-Content-Transfer-Encoding: 7bit
-
-The URB buffer allocation of pwc driver involves with the
-dma_map_single(), and it needs to pass the right device.  Currently it
-passes usb_device.dev, but it's no real device that manages the DMA.
-Since the passed device has no DMA mask set up, now the pwc driver
-hits the WARN_ON_ONCE() check in dma_map_page_attrs() (that was
-introduced in 5.10), resulting in an error at URB allocations.
-Eventually this ended up with the black output.
-
-This patch fixes the bug by passing the proper device, the bus
-controller, to make the URB allocation and map working again.
-
-Signed-off-by: Takashi Iwai <tiwai@suse.de>
-Reviewed-by: Robert Foss <robert.foss@linaro.org>
-Cc: <stable@vger.kernel.org>
-BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1181133
----
- drivers/media/usb/pwc/pwc-if.c | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/drivers/media/usb/pwc/pwc-if.c b/drivers/media/usb/pwc/pwc-if.c
-index 61869636ec61..d771160bb168 100644
---- a/drivers/media/usb/pwc/pwc-if.c
-+++ b/drivers/media/usb/pwc/pwc-if.c
-@@ -461,7 +461,7 @@ static int pwc_isoc_init(struct pwc_device *pdev)
- 		urb->pipe = usb_rcvisocpipe(udev, pdev->vendpoint);
- 		urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
- 		urb->transfer_buffer_length = ISO_BUFFER_SIZE;
--		urb->transfer_buffer = pwc_alloc_urb_buffer(&udev->dev,
-+		urb->transfer_buffer = pwc_alloc_urb_buffer(udev->bus->controller,
- 							    urb->transfer_buffer_length,
- 							    &urb->transfer_dma);
- 		if (urb->transfer_buffer == NULL) {
-@@ -524,7 +524,7 @@ static void pwc_iso_free(struct pwc_device *pdev)
- 		if (urb) {
- 			PWC_DEBUG_MEMORY("Freeing URB\n");
- 			if (urb->transfer_buffer)
--				pwc_free_urb_buffer(&urb->dev->dev,
-+				pwc_free_urb_buffer(urb->dev->bus->controller,
- 						    urb->transfer_buffer_length,
- 						    urb->transfer_buffer,
- 						    urb->transfer_dma);
--- 
-2.26.2
-
-