Commit 60d74e01 authored by Rajan Vaja's avatar Rajan Vaja Committed by Stephen Boyd
Browse files

drivers: clk: zynqmp: Allow zero divisor value 



Zero divider is valid and default for some of ZynqMP
clocks. Allow zero divisor when CLK_DIVIDER_ALLOW_ZERO
for the clock is set.

Signed-off-by: default avatarRajan Vaja <rajanv@xilinx.com>
Signed-off-by: default avatarJolly Shah <jollys@xilinx.com>
Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent 9e98c678

drivers/clk/zynqmp/divider.c

+7 −0
Original line number Diff line number Diff line
@@ -76,6 +76,13 @@ static unsigned long zynqmp_clk_divider_recalc_rate(struct clk_hw *hw, 
	else

		value = div >> 16;



	if (!value) {

		WARN(!(divider->flags & CLK_DIVIDER_ALLOW_ZERO),

		     "%s: Zero divisor and CLK_DIVIDER_ALLOW_ZERO not set\n",

		     clk_name);

		return parent_rate;

	}



	return DIV_ROUND_UP_ULL(parent_rate, value);

}