Thank you for quick response,
In the file you mentioned i found
dp_aux_ch1_hpd_pp1: rsvd1, tristate-enable, input-enable, io_high_voltage-disable
so i Changed
dp_aux_ch0_hpd_pp0: dp, tristate-enable, input-enable, io_high_voltage-disable
to
dp_aux_ch0_hpd_pp0: rsvd0, tristate-enable, input-enable, io_high_voltage-disable
But there is an other reference for dp_aux_ch1_hpd_pp1
which is pinmux.0x02440028 = 0x00000000; # GPIO dp_aux_ch1_hpd_pp1
so what should i put for DP0?