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drivers: gpio-uclass: support PMIC GPIO children

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UCLASS_PMIC may have GPIO children without exposed fdt node,
in this case if requesting fails, check if uclass is PMIC.

Restrict build for supported devices only to save those precious
bytes on devices with no spare memory.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
This commit is contained in:
Svyatoslav Ryhel
2023-07-26 17:10:06 +03:00
parent 52b6bbf162
commit c03cd98d1a
1 changed files with 20 additions and 0 deletions
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20
drivers/gpio/gpio-uclass.c
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@@ -1143,9 +1143,29 @@ static int gpio_request_tail(int ret, const char *nodename,
ret = uclass_get_device_by_ofnode(UCLASS_GPIO, args->node,
&desc->dev);
if (ret) {
#if CONFIG_IS_ENABLED(MAX77663_GPIO) || CONFIG_IS_ENABLED(PALMAS_GPIO)
struct udevice *pmic;
ret = uclass_get_device_by_ofnode(UCLASS_PMIC, args->node,
&pmic);
if (ret) {
log_debug("%s: PMIC device get failed, err %d\n",
__func__, ret);
goto err;
}
device_foreach_child(desc->dev, pmic) {
if (device_get_uclass_id(desc->dev) == UCLASS_GPIO)
break;
}
/* if loop exits without GPIO device return error */
if (device_get_uclass_id(desc->dev) != UCLASS_GPIO)
goto err;
#else
debug("%s: uclass_get_device_by_ofnode failed\n",
__func__);
goto err;
#endif
}
}
ret = gpio_find_and_xlate(desc, args);