gpiolib: of: do not ignore requested index when applying quirks
authorDmitry Torokhov <dmitry.torokhov@gmail.com>
Thu, 8 Sep 2022 05:39:46 +0000 (22:39 -0700)
committerBartosz Golaszewski <brgl@bgdev.pl>
Thu, 15 Sep 2022 08:36:02 +0000 (10:36 +0200)
We should not ignore index passed into of_find_gpio() when handling
quirks. While in practice this change will not have any effect, it
will allow consolidate quirk handling.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
drivers/gpio/gpiolib-of.c

index a037b50bef330d9ef774435316615b36f8bd8b15..c08564948bf9162a50a48f2c56a131eb91709c2f 100644 (file)
@@ -372,7 +372,9 @@ EXPORT_SYMBOL_GPL(gpiod_get_from_of_node);
  * properties should be named "foo-gpios" so we have this special kludge for
  * them.
  */
-static struct gpio_desc *of_find_spi_gpio(struct device *dev, const char *con_id,
+static struct gpio_desc *of_find_spi_gpio(struct device *dev,
+                                         const char *con_id,
+                                         unsigned int idx,
                                          enum of_gpio_flags *of_flags)
 {
        char prop_name[32]; /* 32 is max size of property name */
@@ -393,7 +395,7 @@ static struct gpio_desc *of_find_spi_gpio(struct device *dev, const char *con_id
        /* Will be "gpio-sck", "gpio-mosi" or "gpio-miso" */
        snprintf(prop_name, sizeof(prop_name), "%s-%s", "gpio", con_id);
 
-       desc = of_get_named_gpiod_flags(np, prop_name, 0, of_flags);
+       desc = of_get_named_gpiod_flags(np, prop_name, idx, of_flags);
        return desc;
 }
 
@@ -434,7 +436,9 @@ static struct gpio_desc *of_find_spi_cs_gpio(struct device *dev,
  * properties should be named "foo-gpios" so we have this special kludge for
  * them.
  */
-static struct gpio_desc *of_find_regulator_gpio(struct device *dev, const char *con_id,
+static struct gpio_desc *of_find_regulator_gpio(struct device *dev,
+                                               const char *con_id,
+                                               unsigned int idx,
                                                enum of_gpio_flags *of_flags)
 {
        /* These are the connection IDs we accept as legacy GPIO phandles */
@@ -457,12 +461,13 @@ static struct gpio_desc *of_find_regulator_gpio(struct device *dev, const char *
        if (i < 0)
                return ERR_PTR(-ENOENT);
 
-       desc = of_get_named_gpiod_flags(np, con_id, 0, of_flags);
+       desc = of_get_named_gpiod_flags(np, con_id, idx, of_flags);
        return desc;
 }
 
 static struct gpio_desc *of_find_arizona_gpio(struct device *dev,
                                              const char *con_id,
+                                             unsigned int idx,
                                              enum of_gpio_flags *of_flags)
 {
        if (!IS_ENABLED(CONFIG_MFD_ARIZONA))
@@ -471,17 +476,18 @@ static struct gpio_desc *of_find_arizona_gpio(struct device *dev,
        if (!con_id || strcmp(con_id, "wlf,reset"))
                return ERR_PTR(-ENOENT);
 
-       return of_get_named_gpiod_flags(dev->of_node, con_id, 0, of_flags);
+       return of_get_named_gpiod_flags(dev->of_node, con_id, idx, of_flags);
 }
 
 static struct gpio_desc *of_find_usb_gpio(struct device *dev,
                                          const char *con_id,
+                                         unsigned int idx,
                                          enum of_gpio_flags *of_flags)
 {
        /*
-        * Currently this USB quirk is only for the Fairchild FUSB302 host which is using
-        * an undocumented DT GPIO line named "fcs,int_n" without the compulsory "-gpios"
-        * suffix.
+        * Currently this USB quirk is only for the Fairchild FUSB302 host
+        * which is using an undocumented DT GPIO line named "fcs,int_n"
+        * without the compulsory "-gpios" suffix.
         */
        if (!IS_ENABLED(CONFIG_TYPEC_FUSB302))
                return ERR_PTR(-ENOENT);
@@ -489,7 +495,7 @@ static struct gpio_desc *of_find_usb_gpio(struct device *dev,
        if (!con_id || strcmp(con_id, "fcs,int_n"))
                return ERR_PTR(-ENOENT);
 
-       return of_get_named_gpiod_flags(dev->of_node, con_id, 0, of_flags);
+       return of_get_named_gpiod_flags(dev->of_node, con_id, idx, of_flags);
 }
 
 struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
@@ -518,7 +524,7 @@ struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
 
        if (gpiod_not_found(desc)) {
                /* Special handling for SPI GPIOs if used */
-               desc = of_find_spi_gpio(dev, con_id, &of_flags);
+               desc = of_find_spi_gpio(dev, con_id, idx, &of_flags);
        }
 
        if (gpiod_not_found(desc)) {
@@ -530,14 +536,14 @@ struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
 
        if (gpiod_not_found(desc)) {
                /* Special handling for regulator GPIOs if used */
-               desc = of_find_regulator_gpio(dev, con_id, &of_flags);
+               desc = of_find_regulator_gpio(dev, con_id, idx, &of_flags);
        }
 
        if (gpiod_not_found(desc))
-               desc = of_find_arizona_gpio(dev, con_id, &of_flags);
+               desc = of_find_arizona_gpio(dev, con_id, idx, &of_flags);
 
        if (gpiod_not_found(desc))
-               desc = of_find_usb_gpio(dev, con_id, &of_flags);
+               desc = of_find_usb_gpio(dev, con_id, idx, &of_flags);
 
        if (IS_ERR(desc))
                return desc;