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clk: at91: pmc: #undef field_{get,prep}() before definition

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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: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
This commit is contained in:
Geert Uytterhoeven
2025-11-06 14:33:49 +01:00
committed by Yury Norov (NVIDIA)
parent d1cadd4bfc
commit dbfe51513a
1 changed files with 2 additions and 0 deletions
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drivers/clk/at91/pmc.h
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@@ -117,7 +117,9 @@ struct at91_clk_pms {
unsigned int parent;
};
#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))
#define ndck(a, s) (a[s - 1].id + 1)