On Mon, Apr 17, 2017 at 3:11 PM, Adam Ford <aford173@xxxxxxxxx> wrote: > On Thu, Apr 13, 2017 at 10:03 AM, Rob Herring <robh@xxxxxxxxxx> wrote: >> Turns out that the LL protocol and the TI-ST are the same thing AFAICT. >> The TI-ST adds firmware loading, GPIO control, and shared access for >> NFC, FM radio, etc. For now, we're only implementing what is needed for >> BT. This mirrors other drivers like BCM and Intel, but uses the new >> serdev bus. >> >> The firmware loading is greatly simplified by using existing >> infrastructure to send commands. It may be a bit slower than the >> original code using synchronous functions, but the real bottleneck is >> likely doing firmware load at 115.2kbps. > > I am using pdata-quirks to drive my wl1283 Bluetooth on a DM3730. I > have the Bluetooth set to 3000000 baud in pdata quirks. Looking at > the binding, I don't see an option to set the baudrate. Is there (or > will there) be a way to set the baud rate of the Bluetooth? If you read hci_ti_probe, you will see it is already there. The default is 3Mbps and the DT can override that with "max-speed". The intent is that 3Mbps is the max the device can do and max-speed is only for board or host limitations. Though I just checked the datasheet on the 1835 and it can go up to 4364kbps. No datasheets for wl1283, so I have no idea what the max is. >> +static int hci_ti_probe(struct serdev_device *serdev) >> +{ >> + struct hci_uart *hu; >> + struct ll_device *lldev; >> + u32 max_speed = 3000000; [...] >> + of_property_read_u32(serdev->dev.of_node, "max-speed", &max_speed); >> + hci_uart_set_speeds(hu, 115200, max_speed); -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html