[PATCH 5.18 0710/1095] clk: qcom: camcc-sdm845: Fix topology around titan_top power domain

From: Greg Kroah-Hartman
Date: Mon Aug 15 2022 - 17:54:08 EST


From: Vladimir Zapolskiy <vladimir.zapolskiy@xxxxxxxxxx>

[ Upstream commit 103dd2338bbff567bce7acd00fc5a09c806b38ec ]

On SDM845 two found VFE GDSC power domains shall not be operated, if
titan top is turned off, thus the former power domains will be set as
subdomains by a GDSC registration routine.

Fixes: 78412c262004 ("clk: qcom: Add camera clock controller driver for SDM845")
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@xxxxxxxxxx>
Reviewed-by: Robert Foss <robert.foss@xxxxxxxxxx>
Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220519214133.1728979-2-vladimir.zapolskiy@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/clk/qcom/camcc-sdm845.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/clk/qcom/camcc-sdm845.c b/drivers/clk/qcom/camcc-sdm845.c
index be3f95326965..27d44188a7ab 100644
--- a/drivers/clk/qcom/camcc-sdm845.c
+++ b/drivers/clk/qcom/camcc-sdm845.c
@@ -1534,6 +1534,8 @@ static struct clk_branch cam_cc_sys_tmr_clk = {
},
};

+static struct gdsc titan_top_gdsc;
+
static struct gdsc bps_gdsc = {
.gdscr = 0x6004,
.pd = {
@@ -1567,6 +1569,7 @@ static struct gdsc ife_0_gdsc = {
.name = "ife_0_gdsc",
},
.flags = POLL_CFG_GDSCR,
+ .parent = &titan_top_gdsc.pd,
.pwrsts = PWRSTS_OFF_ON,
};

@@ -1576,6 +1579,7 @@ static struct gdsc ife_1_gdsc = {
.name = "ife_1_gdsc",
},
.flags = POLL_CFG_GDSCR,
+ .parent = &titan_top_gdsc.pd,
.pwrsts = PWRSTS_OFF_ON,
};

--
2.35.1