diff options
| author | Stephen Boyd <sboyd@codeaurora.org> | 2016-01-08 23:25:53 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-01-27 17:06:19 +0300 |
| commit | ae6d54fd695d7e1bd7b0bdaf457074ae4b5ad7bb (patch) | |
| tree | d538b53289c80cfdc63d86a84064daf57ddd789a /drivers/pinctrl/qcom | |
| parent | 23c3960dfe6faea6fa8b8cb0bfedba2a03bda0c1 (diff) | |
| download | linux-ae6d54fd695d7e1bd7b0bdaf457074ae4b5ad7bb.tar.xz | |
pinctrl: qcom: spmi-mpp: Skip pullup on ULT type MPPs
The ULT type of MPPs don't have a pullup. Skip configuring the
pullup on these types of pins.
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/qcom')
| -rw-r--r-- | drivers/pinctrl/qcom/pinctrl-spmi-mpp.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c index 2f18323571a6..2a3e5490a483 100644 --- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c @@ -117,6 +117,7 @@ * @output_enabled: Set to true if MPP output logic is enabled. * @input_enabled: Set to true if MPP input buffer logic is enabled. * @paired: Pin operates in paired mode + * @has_pullup: Pin has support to configure pullup * @num_sources: Number of power-sources supported by this MPP. * @power_source: Current power-source used. * @amux_input: Set the source for analog input. @@ -134,6 +135,7 @@ struct pmic_mpp_pad { bool output_enabled; bool input_enabled; bool paired; + bool has_pullup; unsigned int num_sources; unsigned int power_source; unsigned int amux_input; @@ -477,11 +479,14 @@ static int pmic_mpp_config_set(struct pinctrl_dev *pctldev, unsigned int pin, if (ret < 0) return ret; - val = pad->pullup << PMIC_MPP_REG_PULL_SHIFT; + if (pad->has_pullup) { + val = pad->pullup << PMIC_MPP_REG_PULL_SHIFT; - ret = pmic_mpp_write(state, pad, PMIC_MPP_REG_DIG_PULL_CTL, val); - if (ret < 0) - return ret; + ret = pmic_mpp_write(state, pad, PMIC_MPP_REG_DIG_PULL_CTL, + val); + if (ret < 0) + return ret; + } val = pad->amux_input & PMIC_MPP_REG_AIN_ROUTE_MASK; @@ -534,7 +539,8 @@ static void pmic_mpp_config_dbg_show(struct pinctrl_dev *pctldev, seq_printf(s, " %-7s", pmic_mpp_functions[pad->function]); seq_printf(s, " vin-%d", pad->power_source); seq_printf(s, " %d", pad->aout_level); - seq_printf(s, " %-8s", biases[pad->pullup]); + if (pad->has_pullup) + seq_printf(s, " %-8s", biases[pad->pullup]); seq_printf(s, " %-4s", pad->out_value ? "high" : "low"); if (pad->dtest) seq_printf(s, " dtest%d", pad->dtest); @@ -748,12 +754,16 @@ static int pmic_mpp_populate(struct pmic_mpp_state *state, pad->power_source = val >> PMIC_MPP_REG_VIN_SHIFT; pad->power_source &= PMIC_MPP_REG_VIN_MASK; - val = pmic_mpp_read(state, pad, PMIC_MPP_REG_DIG_PULL_CTL); - if (val < 0) - return val; + if (subtype != PMIC_MPP_SUBTYPE_ULT_4CH_NO_ANA_OUT && + subtype != PMIC_MPP_SUBTYPE_ULT_4CH_NO_SINK) { + val = pmic_mpp_read(state, pad, PMIC_MPP_REG_DIG_PULL_CTL); + if (val < 0) + return val; - pad->pullup = val >> PMIC_MPP_REG_PULL_SHIFT; - pad->pullup &= PMIC_MPP_REG_PULL_MASK; + pad->pullup = val >> PMIC_MPP_REG_PULL_SHIFT; + pad->pullup &= PMIC_MPP_REG_PULL_MASK; + pad->has_pullup = true; + } val = pmic_mpp_read(state, pad, PMIC_MPP_REG_AIN_CTL); if (val < 0) |