mtd: rawnand: ingenic: move the GPIO quirk to gpiolib-of.c

We have a special place for OF polarity quirks in gpiolib-of.c. Let's
move this over there so that it doesn't pollute the driver.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Andy Shevchenko <andy@kernel.org>

drivers/gpio/gpiolib-of.c

@@ -192,6 +192,15 @@ static void of_gpio_try_fixup_polarity(const struct device_node *np,
 		 */
 		{ "himax,hx8357",	"gpios-reset",	false },
 		{ "himax,hx8369",	"gpios-reset",	false },
+		/*
+		 * The rb-gpios semantics was undocumented and qi,lb60 (along with
+		 * the ingenic driver) got it wrong. The active state encodes the
+		 * NAND ready state, which is high level. Since there's no signal
+		 * inverter on this board, it should be active-high. Let's fix that
+		 * here for older DTs so we can re-use the generic nand_gpio_waitrdy()
+		 * helper, and be consistent with what other drivers do.
+		 */
+		{ "qi,lb60",		"rb-gpios",	true },
 #endif
 	};
 	unsigned int i;

drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c

@@ -380,18 +380,6 @@ static int ingenic_nand_init_chip(struct platform_device *pdev,
 		return ret;
 	}
 
-	/*
-	 * The rb-gpios semantics was undocumented and qi,lb60 (along with
-	 * the ingenic driver) got it wrong. The active state encodes the
-	 * NAND ready state, which is high level. Since there's no signal
-	 * inverter on this board, it should be active-high. Let's fix that
-	 * here for older DTs so we can re-use the generic nand_gpio_waitrdy()
-	 * helper, and be consistent with what other drivers do.
-	 */
-	if (of_machine_is_compatible("qi,lb60") &&
-	    gpiod_is_active_low(nand->busy_gpio))
-		gpiod_toggle_active_low(nand->busy_gpio);
-
 	nand->wp_gpio = devm_gpiod_get_optional(dev, "wp", GPIOD_OUT_LOW);
 
 	if (IS_ERR(nand->wp_gpio)) {