[PATCH 4/4] ASoC: tlv320aic32x4: Use div64_ul for division by unsigned long

[wangdich9700]

From: wangdicheng <wangdicheng@xxxxxxxxxx>

Fix a compiler warning about do_div() truncating an unsigned long divisor:

sound/soc/codecs/tlv320aic32x4-clk.c:169:1-7: WARNING: do_div() does a 64-by-32 division, please consider using div64_ul instead.

do_div() truncates the divisor to 32 bits, but parent_rate is unsigned
long which is 64-bit on 64-bit platforms. Use div64_ul() to correctly
handle the unsigned long divisor across all architectures.

Fixes: 514b044cba66 ("ASoC: tlv320aic32x4: Model PLL in CCF")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: wangdicheng <wangdicheng@xxxxxxxxxx>
---
 sound/soc/codecs/tlv320aic32x4-clk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/tlv320aic32x4-clk.c b/sound/soc/codecs/tlv320aic32x4-clk.c
index 5c0a76a4a106..9359492051ad 100644
--- a/sound/soc/codecs/tlv320aic32x4-clk.c
+++ b/sound/soc/codecs/tlv320aic32x4-clk.c
@@ -166,7 +166,7 @@ static int clk_aic32x4_pll_calc_muldiv(struct clk_aic32x4_pll_muldiv *settings,
 	 * math in the kernel.
 	 */
 	multiplier = (u64) rate * settings->p * 10000;
-	do_div(multiplier, parent_rate);
+	multiplier = div64_ul(multiplier, parent_rate);
 
 	/*
 	 * J can't be over 64, so R can scale this.
-- 
2.25.1