gpio: of: Handle fixed regulator flags properly

This fixes up the handling of fixed regulator polarity
inversion flags: while I remembered to fix it for the
undocumented "reg-fixed-voltage" I forgot about the
official "regulator-fixed" binding, there are two ways
to do a fixed regulator.

The error was noticed and fixed.

Fixes: a603a2b8d86e ("gpio: of: Add special quirk to parse regulator flags")
Cc: Mark Brown <broonie@kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Reported-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 28d968088131..53a14ee8ad6d 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -64,7 +64,8 @@ static void of_gpio_flags_quirks(struct device_node *np,
          * Note that active low is the default.
          */
         if (IS_ENABLED(CONFIG_REGULATOR) &&
-            (of_device_is_compatible(np, "reg-fixed-voltage") ||
+            (of_device_is_compatible(np, "regulator-fixed") ||
+             of_device_is_compatible(np, "reg-fixed-voltage") ||
              of_device_is_compatible(np, "regulator-gpio"))) {
                 /*
                  * The regulator GPIO handles are specified such that the