Commit 85e8ee59 authored by Satya Priya Kakitapalli's avatar Satya Priya Kakitapalli Committed by Bjorn Andersson
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clk: qcom: clk-alpha-pll: Fix zonda set_rate failure when PLL is disabled 



Currently, clk_zonda_pll_set_rate polls for the PLL to lock even if the
PLL is disabled. However, if the PLL is disabled then LOCK_DET will
never assert and we'll return an error. There is no reason to poll
LOCK_DET if the PLL is already disabled, so skip polling in this case.

Fixes: f21b6bfe ("clk: qcom: clk-alpha-pll: add support for zonda pll")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarSatya Priya Kakitapalli <quic_skakitap@quicinc.com>
Reviewed-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240731062916.2680823-4-quic_skakitap@quicinc.com


Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
parent 4ad1ed6e

drivers/clk/qcom/clk-alpha-pll.c

+3 −0
Original line number Diff line number Diff line
@@ -2136,6 +2136,9 @@ static int clk_zonda_pll_set_rate(struct clk_hw *hw, unsigned long rate, 
	regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), a);

	regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l);



	if (!clk_hw_is_enabled(hw))

		return 0;



	/* Wait before polling for the frequency latch */

	udelay(5);