From: Qingmin Liu <qingmin@broadcom.com>
Date: Wed, 7 Jan 2015 11:28:23 +0000 (+0530)
Subject: MIPS: Netlogic: Fix nlm_xlp2_get_pic_frequency to use ref_div
X-Git-Tag: firefly_0821_release~176^2~1944^2~135
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8db23f7df6be572d816f0d056fec16c954d3bdf6;p=firefly-linux-kernel-4.4.55.git

MIPS: Netlogic: Fix nlm_xlp2_get_pic_frequency to use ref_div

The variable ref_div is initialized to the correct divisor but not
used in the frequency calculation. This caused incorrect frequency
to be reported when the clock divisor is not 3.

Signed-off-by: Qingmin Liu <qingmin@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8884/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/netlogic/xlp/nlm_hal.c b/arch/mips/netlogic/xlp/nlm_hal.c
index bc24beb3a426..7e0d22419e9b 100644
--- a/arch/mips/netlogic/xlp/nlm_hal.c
+++ b/arch/mips/netlogic/xlp/nlm_hal.c
@@ -410,7 +410,7 @@ static unsigned int nlm_xlp2_get_pic_frequency(int node)
 
 	fdiv = fdiv/(1 << 13);
 	pll_out_freq_num = ((ref_clk >> 1) * (6 + mdiv)) + fdiv;
-	pll_out_freq_den = (1 << vco_post_div) * pll_post_div * 3;
+	pll_out_freq_den = (1 << vco_post_div) * pll_post_div * ref_div;
 
 	if (pll_out_freq_den > 0)
 		do_div(pll_out_freq_num, pll_out_freq_den);