clk: qcom: camcc-sm8450: Specify Titan GDSC power domain as a parent to IPE/BPS/SBI

When a consumer turns on/off a power domain dependent on another power
domain in hardware, the parent power domain shall be turned on/off by
the power domain provider as well, and to get it the power domain hardware
hierarchy shall be described in the CAMCC driver.

Establish the power domain hierarchy with a Titan GDSC set as a parent of
other GDSC power domains provided by the SM8450 camera clock controller,
including IPE, BPS and SBI ones.

Reviewed-by: Konrad Dybcio <[e-mail]>
Reviewed-by: Imran Shaik <[e-mail]>
Reviewed-by: Bryan O'Donoghue <[e-mail]>
Signed-off-by: Vladimir Zapolskiy <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Bjorn Andersson <[e-mail]>

drivers/clk/qcom/camcc-sm8450.c

···
 		.name = "bps_gdsc",
 	},
 	.flags = HW_CTRL | POLL_CFG_GDSCR,
+	.parent = &titan_top_gdsc.pd,
 	.pwrsts = PWRSTS_OFF_ON,
 };
 
···
 		.name = "ipe_0_gdsc",
 	},
 	.flags = HW_CTRL | POLL_CFG_GDSCR,
+	.parent = &titan_top_gdsc.pd,
 	.pwrsts = PWRSTS_OFF_ON,
 };
 
···
 		.name = "sbi_gdsc",
 	},
 	.flags = POLL_CFG_GDSCR,
+	.parent = &titan_top_gdsc.pd,
 	.pwrsts = PWRSTS_OFF_ON,
 };