pinctrl: at91-pio4: Add persist state case in config

Adding persist state case to atmel_conf_pin_config_group_set() function.
After adding configuration support for userspace gpiod api, there was an
extra flag PIN_CONFIG_PERSIST_STATE that was not passed in before.

Based on other drivers like TI drivers, added a switch case and return
ENOTSUPP in that case.

Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Tested-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221007151647.98222-3-Ryan.Wanner@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
index a7383b9a309e79dc2263f123cba0fedd331521f6..2287e3fa64bfa50b22492969c6869e40802a025e 100644 (file)
--- a/drivers/pinctrl/pinctrl-at91-pio4.c
+++ b/drivers/pinctrl/pinctrl-at91-pio4.c
@@ -775,6 +775,8 @@ static int atmel_conf_pin_config_group_get(struct pinctrl_dev *pctldev,
                        return -EINVAL;
                arg = (res & ATMEL_PIO_DRVSTR_MASK) >> ATMEL_PIO_DRVSTR_OFFSET;
                break;
+       case PIN_CONFIG_PERSIST_STATE:
+               return -ENOTSUPP;
        default:
                return -ENOTSUPP;
        }
@@ -883,6 +885,8 @@ static int atmel_conf_pin_config_group_set(struct pinctrl_dev *pctldev,
                                dev_warn(pctldev->dev, "drive strength not updated (incorrect value)\n");
                        }
                        break;
+               case PIN_CONFIG_PERSIST_STATE:
+                       return -ENOTSUPP;
                default:
                        dev_warn(pctldev->dev,
                                 "unsupported configuration parameter: %u\n",