[PATCH 1/5] clk: qcom: dispcc-glymur: Fix DSI byte clock rate setting

From: Konrad Dybcio

Date: Wed Mar 04 2026 - 08:54:36 EST


From: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>

The clock tree for byte_clk_src is as follows:

┌──────byte0_clk_src─────┐
│ │
byte0_clk byte0_div_clk_src

byte0_intf_clk

If both of its direct children have CLK_SET_RATE_PARENT with different
requests, byte0_clk_src (and its parent) will be reconfigured. In this
case, byte0_intf should strictly follow the rate of byte0_clk (with
some adjustments based on PHY mode).

Remove CLK_SET_RATE_PARENT from byte0_div_clk_src to avoid this issue.

Fixes: b4d15211c408 ("clk: qcom: dispcc-glymur: Add support for Display Clock Controller")
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
---
drivers/clk/qcom/dispcc-glymur.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/drivers/clk/qcom/dispcc-glymur.c b/drivers/clk/qcom/dispcc-glymur.c
index 94053452e871..a8c3cbf591d1 100644
--- a/drivers/clk/qcom/dispcc-glymur.c
+++ b/drivers/clk/qcom/dispcc-glymur.c
@@ -747,7 +747,6 @@ static struct clk_regmap_div disp_cc_mdss_byte0_div_clk_src = {
&disp_cc_mdss_byte0_clk_src.clkr.hw,
},
.num_parents = 1,
- .flags = CLK_SET_RATE_PARENT,
.ops = &clk_regmap_div_ops,
},
};
@@ -762,7 +761,6 @@ static struct clk_regmap_div disp_cc_mdss_byte1_div_clk_src = {
&disp_cc_mdss_byte1_clk_src.clkr.hw,
},
.num_parents = 1,
- .flags = CLK_SET_RATE_PARENT,
.ops = &clk_regmap_div_ops,
},
};

--
2.53.0