diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-at91-pio4.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-at91-pio4.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c index 157fea808629..36c6078b93b3 100644 --- a/drivers/pinctrl/pinctrl-at91-pio4.c +++ b/drivers/pinctrl/pinctrl-at91-pio4.c @@ -71,8 +71,15 @@ /* Custom pinconf parameters */ #define ATMEL_PIN_CONFIG_DRIVE_STRENGTH (PIN_CONFIG_END + 1) +/** + * struct atmel_pioctrl_data - Atmel PIO controller (pinmux + gpio) data struct + * @nbanks: number of PIO banks + * @last_bank_count: number of lines in the last bank (can be less than + * the rest of the banks). + */ struct atmel_pioctrl_data { unsigned nbanks; + unsigned last_bank_count; }; struct atmel_group { @@ -980,11 +987,13 @@ static const struct dev_pm_ops atmel_pctrl_pm_ops = { * We can have up to 16 banks. */ static const struct atmel_pioctrl_data atmel_sama5d2_pioctrl_data = { - .nbanks = 4, + .nbanks = 4, + .last_bank_count = ATMEL_PIO_NPINS_PER_BANK, }; static const struct atmel_pioctrl_data microchip_sama7g5_pioctrl_data = { - .nbanks = 5, + .nbanks = 5, + .last_bank_count = 8, /* sama7g5 has only PE0 to PE7 */ }; static const struct of_device_id atmel_pctrl_of_match[] = { @@ -1025,6 +1034,11 @@ static int atmel_pinctrl_probe(struct platform_device *pdev) atmel_pioctrl_data = match->data; atmel_pioctrl->nbanks = atmel_pioctrl_data->nbanks; atmel_pioctrl->npins = atmel_pioctrl->nbanks * ATMEL_PIO_NPINS_PER_BANK; + /* if last bank has limited number of pins, adjust accordingly */ + if (atmel_pioctrl_data->last_bank_count != ATMEL_PIO_NPINS_PER_BANK) { + atmel_pioctrl->npins -= ATMEL_PIO_NPINS_PER_BANK; + atmel_pioctrl->npins += atmel_pioctrl_data->last_bank_count; + } atmel_pioctrl->reg_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(atmel_pioctrl->reg_base)) |