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Commit 20411dad authored by Nishanth Menon's avatar Nishanth Menon Committed by Tero Kristo
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clk: ti: dra7-atl: Provide error check for incoming parameters in set_rate 



Check for valid parameters in check rate. Else, we end up getting
errors.

This occurs as part of the inital clock tree update of child clock
nodes where new_rate could be 0 for non functional clocks.

Fixes: 9ac33b0c (" CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)")
Signed-off-by: default avatarNishanth Menon <nm@ti.com>
Signed-off-by: default avatarTero Kristo <t-kristo@ti.com>
parent 2f103251

drivers/clk/ti/clk-dra7-atl.c

+5 −1
Original line number Diff line number Diff line
@@ -139,9 +139,13 @@ static long atl_clk_round_rate(struct clk_hw *hw, unsigned long rate, 
static int atl_clk_set_rate(struct clk_hw *hw, unsigned long rate,

			    unsigned long parent_rate)

{

	struct dra7_atl_desc *cdesc = to_atl_desc(hw);

	struct dra7_atl_desc *cdesc;

	u32 divider;



	if (!hw || !rate)

		return -EINVAL;



	cdesc = to_atl_desc(hw);

	divider = ((parent_rate + rate / 2) / rate) - 1;

	if (divider > DRA7_ATL_DIVIDER_MASK)

		divider = DRA7_ATL_DIVIDER_MASK;