From 781d8cea68ac41d11a80df2a5f5babd584f86447 Mon Sep 17 00:00:00 2001
From: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Date: Tue, 17 Dec 2019 09:19:05 -0800
Subject: [PATCH] clk: qcom: Avoid SMMU/cx gdsc corner cases
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@gmail.com>
Link: https://lkml.kernel.org/r/20191217171905.5619-1-jeffrey.l.hugo@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
---
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 e5e2492b20c5e8..9b3923af02a142 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 = {
--
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