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qualcommax: ipq60xx: mark gcc_xo_clk_src as CLK_IS_CRITICAL

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The XO clock source is always-on in hardware and cannot be gated.
Without CLK_IS_CRITICAL, the CMN PLL runtime PM suspend cascades a
disable up to gcc_xo_clk_src, causing a branch status timeout warning.
The IPQ8074 GCC driver already marks this clock as critical.

Signed-off-by: John Crispin <john@phrozen.org>
This commit is contained in:
John Crispin 2026-03-05 14:24:30 +01:00 committed by Robert Marko
parent eb6dd61a8d
commit 5045085bd4
1 changed files with 28 additions and 0 deletions
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target/linux/qualcommax/patches-6.12/0917-clk-qcom-gcc-ipq6018-mark-gcc_xo_clk_src-as-critical.patch Normal file
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@ -0,0 +1,28 @@
From: John Crispin <john@phrozen.org>
Date: Wed, 05 Mar 2026 12:00:00 +0100
Subject: clk: qcom: gcc-ipq6018: mark gcc_xo_clk_src as critical
The XO clock source is always-on in hardware and cannot be gated.
Without CLK_IS_CRITICAL, runtime PM of downstream consumers (such as
the CMN PLL driver) cascades a disable up to gcc_xo_clk_src, causing
a branch status timeout warning.
The IPQ8074 GCC driver already marks this clock as CLK_IS_CRITICAL.
Apply the same fix to IPQ6018.
Signed-off-by: John Crispin <john@phrozen.org>
---
drivers/clk/qcom/gcc-ipq6018.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/clk/qcom/gcc-ipq6018.c
+++ b/drivers/clk/qcom/gcc-ipq6018.c
@@ -400,7 +400,7 @@ static struct clk_branch gcc_xo_clk_src
.fw_name = "xo",
},
.num_parents = 1,
- .flags = CLK_SET_RATE_PARENT,
+ .flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
.ops = &clk_branch2_ops,
},
},