clk: qcom: camcc-x1e80100: Set titan_top_gdsc as the parent GDSC of subordinate GDSCs

BugLink: https://bugs.launchpad.net/bugs/2103829

[ Upstream commit d937794 ]

The Titan TOP GDSC is the parent GDSC for all other GDSCs in the CAMCC
block. None of the subordinate blocks will switch on without the parent
GDSC switched on.

Fixes: 76126a5 ("clk: qcom: Add camcc clock driver for x1e80100")
Acked-by: Rajendra Nayak <quic_rjendra@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Link: https://lore.kernel.org/r/20241227-b4-linux-next-24-12-16-titan-top-gdsc-v1-1-c96ef62fc307@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Noah Wager <noah.wager@canonical.com>
Signed-off-by: Mehmet Basaran <mehmet.basaran@canonical.com>

Author: 0xB0D

drivers/clk/qcom/camcc-x1e80100.c

@@ -2212,6 +2212,8 @@ static struct clk_branch cam_cc_sfe_0_fast_ahb_clk = {
 	},
 };
 
+static struct gdsc cam_cc_titan_top_gdsc;
+
 static struct gdsc cam_cc_bps_gdsc = {
 	.gdscr = 0x10004,
 	.en_rest_wait_val = 0x2,
@@ -2221,6 +2223,7 @@ static struct gdsc cam_cc_bps_gdsc = {
 		.name = "cam_cc_bps_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.parent = &cam_cc_titan_top_gdsc.pd,
 	.flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE,
 };
 
@@ -2233,6 +2236,7 @@ static struct gdsc cam_cc_ife_0_gdsc = {
 		.name = "cam_cc_ife_0_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.parent = &cam_cc_titan_top_gdsc.pd,
 	.flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE,
 };
 
@@ -2245,6 +2249,7 @@ static struct gdsc cam_cc_ife_1_gdsc = {
 		.name = "cam_cc_ife_1_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.parent = &cam_cc_titan_top_gdsc.pd,
 	.flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE,
 };
 
@@ -2257,6 +2262,7 @@ static struct gdsc cam_cc_ipe_0_gdsc = {
 		.name = "cam_cc_ipe_0_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.parent = &cam_cc_titan_top_gdsc.pd,
 	.flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE,
 };
 
@@ -2269,6 +2275,7 @@ static struct gdsc cam_cc_sfe_0_gdsc = {
 		.name = "cam_cc_sfe_0_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.parent = &cam_cc_titan_top_gdsc.pd,
 	.flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE,
 };