clk: imx: Add audio PLL debugfs for K-divider control

Add debugfs support for runtime tuning of the audio PLL K divider,
which enables fine-grained frequency adjustments for audio PLL.
This is used for:
  - Audio clock calibration and testing
  - Debugging audio synchronization issues

Two debug interfaces are exported to userspace:
  - delta_k: It is used to adjust the K divider in PLL based on small
    steps
  - pll_parameter: It is used for get PLL's current M-divider,
    P-divider, S-divider & K-divider setting in PLL register

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Link: https://patch.msgid.link/20260604-imx8m_pll_debugfs-v3-1-4e331ebc85d7@nxp.com
Signed-off-by: Abel Vesa <abel.vesa@oss.qualcomm.com>

0 files changed, 0 insertions, 0 deletions