On Thu 30 Aug 17:58 PDT 2018, Stephen Boyd wrote:
> It looks like we parse the drive strength setting here, but never
> actually write it into the hardware to update it. Parse the setting and
> then write it at the end of the pinconf setting function so that it
> actually sticks in the hardware.
>
> Fixes: 0e948042c420 ("pinctrl: qcom: spmi-mpp: Implement support for sink mode")
> Cc: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> Cc: Doug Anderson <dianders@xxxxxxxxxxxx>
> Signed-off-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Regards,
Bjorn
> ---
> drivers/pinctrl/qcom/pinctrl-spmi-mpp.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
> index 6556dbeae65e..1793a4d05e15 100644
> --- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
> +++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
> @@ -455,7 +455,7 @@ static int pmic_mpp_config_set(struct pinctrl_dev *pctldev, unsigned int pin,
> pad->dtest = arg;
> break;
> case PIN_CONFIG_DRIVE_STRENGTH:
> - arg = pad->drive_strength;
> + pad->drive_strength = arg;
> break;
> case PMIC_MPP_CONF_AMUX_ROUTE:
> if (arg >= PMIC_MPP_AMUX_ROUTE_ABUS4)
> @@ -502,6 +502,10 @@ static int pmic_mpp_config_set(struct pinctrl_dev *pctldev, unsigned int pin,
> if (ret < 0)
> return ret;
>
> + ret = pmic_mpp_write(state, pad, PMIC_MPP_REG_SINK_CTL, pad->drive_strength);
> + if (ret < 0)
> + return ret;
> +
> val = pad->is_enabled << PMIC_MPP_REG_MASTER_EN_SHIFT;
>
> return pmic_mpp_write(state, pad, PMIC_MPP_REG_EN_CTL, val);
> --
> Sent by a computer through tubes
>
