Commit 8db23f7d authored Jan 07, 2015 by Qingmin Liu Committed by Ralf Baechle Apr 01, 2015

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>

parent 46ab6f24

arch/mips/netlogic/xlp/nlm_hal.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);