From: Lothar Waßmann <LW@KARO-electronics.de>
Date: Wed, 9 Apr 2014 08:18:35 +0000 (+0200)
Subject: arm: mx5: clock: improve accuracy of decode_pll()
X-Git-Tag: KARO-TX-2014-04-09~1^2~2
X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=commitdiff_plain;h=07a8b87822dc902b5241b589daa2fc73623e92ba

arm: mx5: clock: improve accuracy of decode_pll()
---

diff --git a/arch/arm/cpu/armv7/mx5/clock.c b/arch/arm/cpu/armv7/mx5/clock.c
index 7dec2d1a2e..5091f999db 100644
--- a/arch/arm/cpu/armv7/mx5/clock.c
+++ b/arch/arm/cpu/armv7/mx5/clock.c
@@ -378,7 +378,6 @@ static uint32_t decode_pll(struct mxc_pll_reg *pll, uint32_t infreq)
 	if (ctrl & MXC_DPLLC_CTL_DPDCK0_2_EN)
 		refclk *= 2;
 
-	do_div(refclk, pdf + 1);
 	temp = refclk * mfn_abs;
 	do_div(temp, mfd + 1);
 	ret = refclk * mfi;
@@ -388,6 +387,7 @@ static uint32_t decode_pll(struct mxc_pll_reg *pll, uint32_t infreq)
 	else
 		ret += temp;
 
+	ret /= pdf + 1;
 	return ret;
 }