cam_mckl0, cam_mclk1, cam_mclk2, cam_mclk3, mdp_vsync, hdmi_cec, hdmi_ddc,
hdmi_hpd, edp_hpd, gp_pdm0, gp_pdm1, gp_pdm2, gp_pdm3, gp0_clk, gp1_clk,
gp_mn, tsif1, tsif2, hsic, grfc, audio_ref_clk, qua_mi2s, pri_mi2s, spkr_mi2s,
- ter_mi2s, sec_mi2s, bt, fm, wlan, slimbus
+ ter_mi2s, sec_mi2s, bt, fm, wlan, slimbus, gpio
(Note that this is not yet the complete list of functions)