[PATCH RFC v3 07/11] clk: qcom: gcc-msm8939: mark Venus core GDSCs as hardware controlled

Erikas Bitovtas
2026-04-27T17:59:14Z

Since in downstream kernel VENUS_CORE0_GDSC and VENUS_CORE1_GDSC have a
device tree property "qcom,supports-hw-trigger", add a HW_CTRL flag
to these GDSCs to indicate that they are hardware controlled.

Venus core clock cannot be enabled if Venus core GDSCs are switched off.
But since they are hardware controlled, they can be switched off at
any moment. Vote for the Venus core clock to enable it later when GDSCs
get turned on.

Signed-off-by: Erikas Bitovtas <xerikasxx@gmail.com>
---
drivers/clk/qcom/gcc-msm8939.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/clk/qcom/gcc-msm8939.c b/drivers/clk/qcom/gcc-msm8939.c
index 45193b3d714b..420997b00ae0 100644
--- a/drivers/clk/qcom/gcc-msm8939.c
+++ b/drivers/clk/qcom/gcc-msm8939.c
@@ -3664,6 +3664,7 @@ static struct clk_branch gcc_venus0_vcodec0_clk = {

static struct clk_branch gcc_venus0_core0_vcodec0_clk = {
.halt_reg = 0x4c02c,
+ .halt_check = BRANCH_HALT_SKIP,
.clkr = {
.enable_reg = 0x4c02c,
.enable_mask = BIT(0),
@@ -3681,6 +3682,7 @@ static struct clk_branch gcc_venus0_core0_vcodec0_clk = {

static struct clk_branch gcc_venus0_core1_vcodec0_clk = {
.halt_reg = 0x4c034,
+ .halt_check = BRANCH_HALT_SKIP,
.clkr = {
.enable_reg = 0x4c034,
.enable_mask = BIT(0),
@@ -3753,6 +3755,7 @@ static struct gdsc venus_core0_gdsc = {
.pd = {
.name = "venus_core0",
},
+ .flags = HW_CTRL,
.pwrsts = PWRSTS_OFF_ON,
};

@@ -3761,6 +3764,7 @@ static struct gdsc venus_core1_gdsc = {
.pd = {
.name = "venus_core1",
},
+ .flags = HW_CTRL,
.pwrsts = PWRSTS_OFF_ON,
};

--
2.54.0