I'd like to confirm clock source of these clocks.
DI0_CLK_PERIOD_0 and DI0_DISP_CLK_PERIOD
This IPUx_PM field descriptions in i.MX6DQ Reference manual describes about DI0_CLK_PERIOD_x
1. Which IPUx_DI0_CLK_ROOT or IPUx_HSP_CLK_ROOT is for Fast_freq?
2. Does Target_freq mean DI0_CLK_PERIOD or DI0_DISP_CLK_PERIOD?
3. Does IPUx_HSP_CLK_ROOT derive to both DI0_CLK_PERIOD and DI0_DISP_CLK_PERIOD?