On 5/19/21 6:27 AM, Ferry Toth wrote:
> extcon driver for Basin Cove PMIC shadows the switch status used for dwc3
> DRD to detect a change in the switch position. This change initializes the
> status at probe time.
>
> Signed-off-by: Ferry Toth <ftoth@xxxxxxxxxxxxxx>
> Fixes: 492929c54791 ("extcon: mrfld: Introduce extcon driver for Basin Cove PMIC")
> Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> ---
>
> v2:
> - Clarified patch title (Chanwoo)
> ---
> drivers/extcon/extcon-intel-mrfld.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/drivers/extcon/extcon-intel-mrfld.c b/drivers/extcon/extcon-intel-mrfld.c
> index f47016fb28a8..cd1a5f230077 100644
> --- a/drivers/extcon/extcon-intel-mrfld.c
> +++ b/drivers/extcon/extcon-intel-mrfld.c
> @@ -197,6 +197,7 @@ static int mrfld_extcon_probe(struct platform_device *pdev)
> struct intel_soc_pmic *pmic = dev_get_drvdata(dev->parent);
> struct regmap *regmap = pmic->regmap;
> struct mrfld_extcon_data *data;
> + unsigned int status;
> unsigned int id;
> int irq, ret;
>
> @@ -244,6 +245,14 @@ static int mrfld_extcon_probe(struct platform_device *pdev)
> /* Get initial state */
> mrfld_extcon_role_detect(data);
>
> + /*
> + * Cached status value is used for cable detection, see comments
> + * in mrfld_extcon_cable_detect(), we need to sync cached value
> + * with a real state of the hardware.
> + */
> + regmap_read(regmap, BCOVE_SCHGRIRQ1, &status);
> + data->status = status;
> +
> mrfld_extcon_clear(data, BCOVE_MIRQLVL1, BCOVE_LVL1_CHGR);
> mrfld_extcon_clear(data, BCOVE_MCHGRIRQ1, BCOVE_CHGRIRQ_ALL);
>
>
Applied it. Thanks.
--
Best Regards,
Chanwoo Choi
Samsung Electronics
