[PATCH] clk: qcom: Avoid SMMU/cx gdsc corner cases

From: Jeffrey Hugo
Date: Tue Dec 17 2019 - 12:19:12 EST


Mark the msm8998 cpu CX gdsc as votable and use the hw control to avoid
corner cases with SMMU per hardware documentation.

Fixes: 3f7df5baa259 ("clk: qcom: Add MSM8998 GPU Clock Controller (GPUCC) driver")
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@xxxxxxxxx>
---
drivers/clk/qcom/gpucc-msm8998.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/clk/qcom/gpucc-msm8998.c b/drivers/clk/qcom/gpucc-msm8998.c
index e5e2492b20c5..9b3923af02a1 100644
--- a/drivers/clk/qcom/gpucc-msm8998.c
+++ b/drivers/clk/qcom/gpucc-msm8998.c
@@ -242,10 +242,12 @@ static struct clk_branch gfx3d_isense_clk = {

static struct gdsc gpu_cx_gdsc = {
.gdscr = 0x1004,
+ .gds_hw_ctrl = 0x1008,
.pd = {
.name = "gpu_cx",
},
.pwrsts = PWRSTS_OFF_ON,
+ .flags = VOTABLE,
};

static struct gdsc gpu_gx_gdsc = {
--
2.17.1