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Unverified Commit cd7fdc45 authored by Young_X's avatar Young_X Committed by Mark Brown
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ASoC: au8540: use 64-bit arithmetic instead of 32-bit 



Add suffix ULL to constant 256 in order to give the compiler complete
information about the proper arithmetic to use.

Notice that such constant is used in a context that expects an
expression of type u64 (64 bits, unsigned) and the following
expression is currently being evaluated using 32-bit arithmetic:

    256 * fs * 2 * mclk_src_scaling[i].param

Signed-off-by: default avatarYoung_X <YangX92@hotmail.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent f6f30a60

sound/soc/codecs/nau8540.c

+1 −1
Original line number Diff line number Diff line
@@ -585,7 +585,7 @@ static int nau8540_calc_fll_param(unsigned int fll_in, 
	fvco_max = 0;

	fvco_sel = ARRAY_SIZE(mclk_src_scaling);

	for (i = 0; i < ARRAY_SIZE(mclk_src_scaling); i++) {

		fvco = 256 * fs * 2 * mclk_src_scaling[i].param;

		fvco = 256ULL * fs * 2 * mclk_src_scaling[i].param;

		if (fvco > NAU_FVCO_MIN && fvco < NAU_FVCO_MAX &&

			fvco_max < fvco) {

			fvco_max = fvco;