From: Chris Morgan <macromorgan@xxxxxxxxxxx> This patch series is to add support for the RTL8821CS Bluetooth controller found on the RTL8821CS WiFi/Bluetooth combo chip. This has been tested with firmware version 0x75b8f098 which has been submitted by Realtek for inclusion in linux-firmware. https://lore.kernel.org/linux-firmware/20230223062453.181239-1-max.chou@xxxxxxxxxxx/ Changes from V4: - After extensive testing it was found that there are problems with using the bluetooth that were not caught with the initial testing. This can be mitigated by setting the "H5_INFO_WAKEUP_DISABLE" flag. The easiest way to accomplish that is to change the fallback compatible string to "realtek,rtl8723bs-bt". Updated the binding documentation and binding to reflect this. No change to the driver from V4 was necessary. Removed "reviewed-by" from documentation due to this change. Changes from V3: - Corrected bindings so that all but the 8821 use enum, and 8821 uses items. Changes from V2: - Corrected devicetree documentation to change compatible from const back to enum. - Removed "reviewed-by" from Alistair Francis as binding documentation updated with changes. Changes from V1: - Switched to use a fallback string for the rtl8822cs so as to not add an extra entry to the of_device_id table. The driver is capable of selecting the correct firmware blob to load. - Updated the messages to note a new version of the firmware was tested and that Realtek has submitted this firmware upstream. - Updated the devicetree node on the Anbernic RGxx3 series to use the fallback string of realtek,rtl8822cs-bt. Chris Morgan (3): dt-bindings: net: realtek-bluetooth: Add RTL8821CS Bluetooth: hci_h5: btrtl: Add support for RTL8821CS arm64: dts: rockchip: Update compatible for bluetooth .../bindings/net/realtek-bluetooth.yaml | 24 ++++++++++++------- .../dts/rockchip/rk3566-anbernic-rgxx3.dtsi | 2 +- drivers/bluetooth/btrtl.c | 8 +++++++ 3 files changed, 24 insertions(+), 10 deletions(-) -- 2.34.1