ASoC: nau8810: fix the issue of 64 bits division

Do division with div_u64 for the PLL calculation.
These errors are fixed and list as follows:
1."__udivdi3" [sound/soc/codecs/snd-soc-nau8810.ko] undefined!
2."__aeabi_uldivmod" [sound/soc/codecs/snd-soc-nau8810.ko] undefined!
3. nau8810.c:(.text.nau8810_calc_pll+0xd8): undefined reference to
`__udivdi3'

Signed-off-by: John Hsu <KCHSU0@nuvoton.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/nau8810.c b/sound/soc/codecs/nau8810.c
index 125e205..dd82c65 100644 (file)
--- a/sound/soc/codecs/nau8810.c
+++ b/sound/soc/codecs/nau8810.c
@@ -505,7 +505,8 @@ static int nau8810_calc_pll(unsigned int pll_in,
        f2_max = 0;
        scal_sel = ARRAY_SIZE(nau8810_mclk_scaler);
        for (i = 0; i < ARRAY_SIZE(nau8810_mclk_scaler); i++) {
-               f2 = 256ULL * fs * 4 * nau8810_mclk_scaler[i] / 10;
+               f2 = 256ULL * fs * 4 * nau8810_mclk_scaler[i];
+               f2 = div_u64(f2, 10);
                if (f2 > NAU_PLL_FREQ_MIN && f2 < NAU_PLL_FREQ_MAX &&
                        f2_max < f2) {
                        f2_max = f2;