On 05/09/2025 10:40, Zhangchao Zhang wrote:
> Makes the platform Bluetooth to be reset by hardware pin,
> it provides two methods to do it for mediatek controller,
> and it has been tested locally many times and can reset normally.
>
> When an exception occurs, resetting Bluetooth by hardware pin
> is more stable than resetting Bluetooth by software.
> If the corresponding pin is not found in dts,
> bluetooth can also be reset successfully.
>
> Co-developed: Hao Qin <hao.qin@xxxxxxxxxxxx>
> Co-developed: Chris Lu <chris.lu@xxxxxxxxxxxx>
> Co-developed: Jiande Lu <jiande.lu@xxxxxxxxxxxx>
> Signed-off-by: Zhangchao Zhang <ot_zhangchao.zhang@xxxxxxxxxxxx>
> ---
> drivers/bluetooth/btmtk.c | 32 ++++++++++++++++++++++++++++++++
> 1 file changed, 32 insertions(+)
>
> diff --git a/drivers/bluetooth/btmtk.c b/drivers/bluetooth/btmtk.c
> index 4390fd571dbd..29d6a93f255d 100644
> --- a/drivers/bluetooth/btmtk.c
> +++ b/drivers/bluetooth/btmtk.c
> @@ -6,6 +6,8 @@
> #include <linux/firmware.h>
> #include <linux/usb.h>
> #include <linux/iopoll.h>
> +#include <linux/gpio/consumer.h>
> +#include <linux/of.h>
> #include <linux/unaligned.h>
>
> #include <net/bluetooth/bluetooth.h>
> @@ -359,11 +361,41 @@ int btmtk_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
> }
> EXPORT_SYMBOL_GPL(btmtk_set_bdaddr);
>
> +static int btmtk_hw_gpio_reset(struct hci_dev *hdev, struct btmtk_data *reset_work)
> +{
> + struct gpio_desc *reset_gpio;
> +
> + /* Find device node*/
> + hdev->dev.of_node = of_find_compatible_node(NULL, NULL, "mediatek,mt7925-bluetooth");
Nothing improved.
You just keep ignoring comments.
NAK
Best regards,
Krzysztof
