D26307.id76580.diff
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D26307.id76580.diff
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	Index: sys/arm/allwinner/clkng/aw_clk_nm.c
	===================================================================
	--- sys/arm/allwinner/clkng/aw_clk_nm.c
	+++ sys/arm/allwinner/clkng/aw_clk_nm.c
	@@ -136,6 +136,12 @@
	return (0);
	}

	+static inline uint64_t
	+distance(uint64_t x, uint64_t y)
	+{
	+ return (x >= y ? x - y : y - x);
	+}
	+
	static uint64_t
	aw_clk_nm_find_best(struct aw_clk_nm_sc sc, uint64_t fparent, uint64_t fout,
	uint32_t factor_n, uint32_t factor_m)
	@@ -153,7 +159,7 @@
	for (m = min_m; m <= max_m; ) {
	for (n = min_n; n <= max_n; ) {
	cur = fparent / n / m;
	- if (abs(fout - cur) < abs(fout - best)) {
	+ if (distance(fout, cur) < distance(fout, best)) {
	best = cur;
	*factor_n = n;
	*factor_m = m;
	@@ -196,7 +202,7 @@
	clknode_get_freq(p_clk, &fparent);

	cur = aw_clk_nm_find_best(sc, fparent, fout, &n, &m);
	- if (abs((fout - cur)) < abs((fout - best))) {
	+ if (distance(fout, cur) < distance(fout, best)) {
	best = cur;
	best_parent = p_idx;
	best_n = n;