On 2018년 11월 14일 00:38, Marek Szyprowski wrote:
> MAX8997 driver disables automatic path selection from MicroUSB connector
> and manually sets path to either UART or USB lines. However the code for
> setting USB path worked only for USB host mode (when ID pin is set
> to ground). When standard USB cable (USB device mode) is connected, path
> registers are not touched. This means that once the non-USB accessory is
> connected to MAX8997-operated micro USB port, the path is no longer set
> to USB and USB device mode doesn't work. This patch fixes it by setting
> USB path both for USB and USB host modes.
>
> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> ---
> drivers/extcon/extcon-max8997.c | 10 ++++------
> 1 file changed, 4 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
> index 632192d027bf..172e116ac1ce 100644
> --- a/drivers/extcon/extcon-max8997.c
> +++ b/drivers/extcon/extcon-max8997.c
> @@ -311,12 +311,10 @@ static int max8997_muic_handle_usb(struct max8997_muic_info *info,
> {
> int ret = 0;
>
> - if (usb_type == MAX8997_USB_HOST) {
> - ret = max8997_muic_set_path(info, info->path_usb, attached);
> - if (ret < 0) {
> - dev_err(info->dev, "failed to update muic register\n");
> - return ret;
> - }
> + ret = max8997_muic_set_path(info, info->path_usb, attached);
> + if (ret < 0) {
> + dev_err(info->dev, "failed to update muic register\n");
> + return ret;
> }
>
> switch (usb_type) {
>
Applied it. Thanks.
--
Best Regards,
Chanwoo Choi
Samsung Electronics
