summaryrefslogtreecommitdiffstats
path: root/drivers/clk/meson/clk-pll.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/clk/meson/clk-pll.c')
-rw-r--r--drivers/clk/meson/clk-pll.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c
index ddb1e5634739..3a5853ca98c6 100644
--- a/drivers/clk/meson/clk-pll.c
+++ b/drivers/clk/meson/clk-pll.c
@@ -77,6 +77,15 @@ static unsigned long meson_clk_pll_recalc_rate(struct clk_hw *hw,
unsigned int m, n, frac;
n = meson_parm_read(clk->map, &pll->n);
+
+ /*
+ * On some HW, N is set to zero on init. This value is invalid as
+ * it would result in a division by zero. The rate can't be
+ * calculated in this case
+ */
+ if (n == 0)
+ return 0;
+
m = meson_parm_read(clk->map, &pll->m);
frac = MESON_PARM_APPLICABLE(&pll->frac) ?