gpiolib: of: add a quirk for legacy names in MOXA ART RTC

The driver is using non-standard "gpio-rtc-data", "gpio-rtc-sclk", and
"gpio-rtc-reset" names for properties describing its gpios. In
preparation to converting to the standard naming ("rtc-*-gpios") and
switching the driver to gpiod API add a quirk to gpiolib to keep
compatibility with existing DTSes.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index ffdbac2eeaa6f9688488967c07a1ffa24ed5fd8d..d22498c72a678d00de6cca0e62763c6394671472 100644 (file)
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -390,6 +390,11 @@ static struct gpio_desc *of_find_gpio_rename(struct device_node *np,
 #if IS_ENABLED(CONFIG_MFD_ARIZONA)
                { "wlf,reset",  NULL,           NULL },
 #endif
+#if IS_ENABLED(CONFIG_RTC_DRV_MOXART)
+               { "rtc-data",   "gpio-rtc-data",        "moxa,moxart-rtc" },
+               { "rtc-sclk",   "gpio-rtc-sclk",        "moxa,moxart-rtc" },
+               { "rtc-reset",  "gpio-rtc-reset",       "moxa,moxart-rtc" },
+#endif
 #if IS_ENABLED(CONFIG_NFC_MRVL_I2C)
                { "reset",      "reset-n-io",   "marvell,nfc-i2c" },
 #endif