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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>
pull/1354/merge
Jose Javier Rodriguez Barbarin 2025-11-18 09:31:15 +01:00 committed by Bartosz Golaszewski
parent 10c1529690
commit 5dd9332c61
1 changed files with 23 additions and 3 deletions
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26
drivers/gpio/gpio-menz127.c
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@ -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");