diff options
| author | Jose Javier Rodriguez Barbarin <dev-josejavier.rodriguez@duagon.com> | 2025-11-18 09:31:15 +0100 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2025-11-20 14:15:04 +0100 |
| commit | 5dd9332c618473dee7c94946e482604cf095fbbc (patch) | |
| tree | 54e882966ca12df7a13385600bbea775ae8fc7f9 /drivers/gpio | |
| parent | 10c15296906952016a84e1e45d8dc361f35afbd8 (diff) | |
gpio: menz127: add support for 16Z034 and 16Z037 GPIO controllers
The 16Z034 and 16Z037 are 8 bits GPIO controllers that share the
same registers and features of the 16Z127 GPIO controller.
Signed-off-by: Jose Javier Rodriguez Barbarin <dev-josejavier.rodriguez@duagon.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20251118083115.9545-1-dev-josejavier.rodriguez@duagon.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-menz127.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/gpio/gpio-menz127.c b/drivers/gpio/gpio-menz127.c index da2bf9381cc4..52b13c6ae496 100644 --- a/drivers/gpio/gpio-menz127.c +++ b/drivers/gpio/gpio-menz127.c @@ -24,6 +24,11 @@ #define MEN_Z127_ODER 0x1C #define GPIO_TO_DBCNT_REG(gpio) ((gpio * 4) + 0x80) +/* MEN Z127 supported model ids*/ +#define MEN_Z127_ID 0x7f +#define MEN_Z034_ID 0x22 +#define MEN_Z037_ID 0x25 + #define MEN_Z127_DB_MIN_US 50 /* 16 bit compare register. Each bit represents 50us */ #define MEN_Z127_DB_MAX_US (0xffff * MEN_Z127_DB_MIN_US) @@ -140,6 +145,7 @@ static int men_z127_probe(struct mcb_device *mdev, struct men_z127_gpio *men_z127_gpio; struct device *dev = &mdev->dev; int ret; + unsigned long sz; men_z127_gpio = devm_kzalloc(dev, sizeof(struct men_z127_gpio), GFP_KERNEL); @@ -163,9 +169,21 @@ static int men_z127_probe(struct mcb_device *mdev, mcb_set_drvdata(mdev, men_z127_gpio); + switch (mdev->id) { + case MEN_Z127_ID: + sz = 4; + break; + case MEN_Z034_ID: + case MEN_Z037_ID: + sz = 1; + break; + default: + return dev_err_probe(&mdev->dev, -EINVAL, "no size found for id %d", mdev->id); + } + config = (struct gpio_generic_chip_config) { .dev = &mdev->dev, - .sz = 4, + .sz = sz, .dat = men_z127_gpio->reg_base + MEN_Z127_PSR, .set = men_z127_gpio->reg_base + MEN_Z127_CTRL, .dirout = men_z127_gpio->reg_base + MEN_Z127_GPIODR, @@ -186,7 +204,9 @@ static int men_z127_probe(struct mcb_device *mdev, } static const struct mcb_device_id men_z127_ids[] = { - { .device = 0x7f }, + { .device = MEN_Z127_ID }, + { .device = MEN_Z034_ID }, + { .device = MEN_Z037_ID }, { } }; MODULE_DEVICE_TABLE(mcb, men_z127_ids); @@ -201,7 +221,7 @@ static struct mcb_driver men_z127_driver = { module_mcb_driver(men_z127_driver); MODULE_AUTHOR("Andreas Werner <andreas.werner@men.de>"); -MODULE_DESCRIPTION("MEN 16z127 GPIO Controller"); +MODULE_DESCRIPTION("MEN GPIO Controller"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("mcb:16z127"); MODULE_IMPORT_NS("MCB"); |