clk: qcom: clk-alpha-pll: Fix CAL_L_VAL override for LUCID EVO PLL

commit fff61797 upstream.

In LUCID EVO PLL CAL_L_VAL and L_VAL bitfields are part of single
PLL_L_VAL register. Update for L_VAL bitfield values in PLL_L_VAL
register using regmap_write() API in __alpha_pll_trion_set_rate
callback will override LUCID EVO PLL initial configuration related
to PLL_CAL_L_VAL bit fields in PLL_L_VAL register.

Observed random PLL lock failures during PLL enable due to such
override in PLL calibration value. Use regmap_update_bits() with
L_VAL bitfield mask instead of regmap_write() API to update only
PLL_L_VAL bitfields in __alpha_pll_trion_set_rate callback.

Fixes: 260e3660 ("clk: qcom: clk-alpha-pll: add Lucid EVO PLL configuration interfaces")
Cc: stable@vger.kernel.org
Signed-off-by: Ajit Pandey <quic_ajipan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Link: https://lore.kernel.org/r/20240611133752.2192401-2-quic_ajipan@quicinc.com


Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>