pinctrl: ma35: #undef field_{get,prep}() before local definition

Prepare for the advent of globally available common field_get() and
field_prep() macros by undefining the symbols before defining local
variants.  This prevents redefinition warnings from the C preprocessor
when introducing the common macros later.

Suggested-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>

diff --git a/drivers/pinctrl/nuvoton/pinctrl-ma35.c b/drivers/pinctrl/nuvoton/pinctrl-ma35.c
index cdad01d68a37e365aa21eda7870e0637fa00dbd2..925dd717c9deead524a2730a71ad9d7d3171f164 100644 (file)
--- a/drivers/pinctrl/nuvoton/pinctrl-ma35.c
+++ b/drivers/pinctrl/nuvoton/pinctrl-ma35.c
@@ -82,7 +82,9 @@
 #define MVOLT_3300                     1
 
 /* Non-constant mask variant of FIELD_GET() and FIELD_PREP() */
+#undef field_get
 #define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1))
+#undef field_prep
 #define field_prep(_mask, _val)        (((_val) << (ffs(_mask) - 1)) & (_mask))
 
 static const char * const gpio_group_name[] = {