linux-kernel - [PATCH AUTOSEL 6.1 07/26] gpiolib: of: add a quirk for legacy names in MOXA ART RTC

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Date:   Fri, 23 Dec 2022 20:29:11 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        Sasha Levin <sashal@...nel.org>, linus.walleij@...aro.org,
        brgl@...ev.pl, linux-gpio@...r.kernel.org
Subject: [PATCH AUTOSEL 6.1 07/26] gpiolib: of: add a quirk for legacy names in MOXA ART RTC

From: Dmitry Torokhov <dmitry.torokhov@...il.com>

[ Upstream commit eaf1a29665cda1c767cac0d523828892bd77a842 ]

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@...il.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpio/gpiolib-of.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index ffdbac2eeaa6..d22498c72a67 100644
--- 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
-- 
2.35.1