Commit 500a4609 authored by Adam Skladowski's avatar Adam Skladowski Committed by Bjorn Andersson
Browse files

clk: qcom: clk-hfpll: Configure l_val in init when required 



Add support for pre-configuring default frequency multiplier,
this appears to be required on some platforms like MSM8976.
Without configuring L_VAL device reboots when trying to bring PLL up.

Signed-off-by: default avatarAdam Skladowski <a39.skl@gmail.com>
Reviewed-by: default avatarKonrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230812112534.8610-3-a39.skl@gmail.com


Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
parent 0bb80ecc

drivers/clk/qcom/clk-hfpll.c

+4 −0
Original line number Diff line number Diff line
@@ -44,6 +44,10 @@ static void __clk_hfpll_init_once(struct clk_hw *hw) 
		regmap_write(regmap, hd->user_reg, regval);

	}



	/* Write L_VAL from conf if it exist */

	if (hd->l_val)

		regmap_write(regmap, hd->l_reg, hd->l_val);



	if (hd->droop_reg)

		regmap_write(regmap, hd->droop_reg, hd->droop_val);

drivers/clk/qcom/clk-hfpll.h

+1 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ struct hfpll_data { 
	u32 status_reg;

	u8  lock_bit;



	u32 l_val;

	u32 droop_val;

	u32 config_val;

	u32 user_val;