diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-single.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-single.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c index de6459628b4f..2960557bfed9 100644 --- a/drivers/pinctrl/pinctrl-single.c +++ b/drivers/pinctrl/pinctrl-single.c @@ -662,6 +662,7 @@ static int pcs_pinconf_get(struct pinctrl_dev *pctldev, break; case PIN_CONFIG_DRIVE_STRENGTH: case PIN_CONFIG_SLEW_RATE: + case PIN_CONFIG_LOW_POWER_MODE: default: *config = data; break; @@ -699,6 +700,7 @@ static int pcs_pinconf_set(struct pinctrl_dev *pctldev, case PIN_CONFIG_INPUT_SCHMITT: case PIN_CONFIG_DRIVE_STRENGTH: case PIN_CONFIG_SLEW_RATE: + case PIN_CONFIG_LOW_POWER_MODE: shift = ffs(func->conf[i].mask) - 1; data &= ~func->conf[i].mask; data |= (arg << shift) & func->conf[i].mask; @@ -808,6 +810,7 @@ static const struct pinconf_ops pcs_pinconf_ops = { static int pcs_add_pin(struct pcs_device *pcs, unsigned offset, unsigned pin_pos) { + struct pcs_soc_data *pcs_soc = &pcs->socdata; struct pinctrl_pin_desc *pin; struct pcs_name *pn; int i; @@ -819,6 +822,18 @@ static int pcs_add_pin(struct pcs_device *pcs, unsigned offset, return -ENOMEM; } + if (pcs_soc->irq_enable_mask) { + unsigned val; + + val = pcs->read(pcs->base + offset); + if (val & pcs_soc->irq_enable_mask) { + dev_dbg(pcs->dev, "irq enabled at boot for pin at %lx (%x), clearing\n", + (unsigned long)pcs->res->start + offset, val); + val &= ~pcs_soc->irq_enable_mask; + pcs->write(val, pcs->base + offset); + } + } + pin = &pcs->pins.pa[i]; pn = &pcs->names[i]; sprintf(pn->name, "%lx.%d", @@ -1101,6 +1116,7 @@ static int pcs_parse_pinconf(struct pcs_device *pcs, struct device_node *np, { "pinctrl-single,drive-strength", PIN_CONFIG_DRIVE_STRENGTH, }, { "pinctrl-single,slew-rate", PIN_CONFIG_SLEW_RATE, }, { "pinctrl-single,input-schmitt", PIN_CONFIG_INPUT_SCHMITT, }, + { "pinctrl-single,low-power-mode", PIN_CONFIG_LOW_POWER_MODE, }, }; struct pcs_conf_type prop4[] = { { "pinctrl-single,bias-pullup", PIN_CONFIG_BIAS_PULL_UP, }, |