4.14-stable review patch. If anyone has any objections, please let me know.
------------------ From: Stephen Boyd <[email protected]> [ Upstream commit 89c68b102f13f123aaef22b292526d6b92501334 ] 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: Doug Anderson <[email protected]> Signed-off-by: Stephen Boyd <[email protected]> Reviewed-by: Bjorn Andersson <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/pinctrl/qcom/pinctrl-spmi-mpp.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c @@ -457,7 +457,7 @@ static int pmic_mpp_config_set(struct pi 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) @@ -504,6 +504,10 @@ static int pmic_mpp_config_set(struct pi 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);
