78 lines
2.3 KiB
Diff
78 lines
2.3 KiB
Diff
From c3fccf1615be6548b50274851557f579b6320b5b Mon Sep 17 00:00:00 2001
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From: Nikita Travkin <nikita@trvn.ru>
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Date: Mon, 11 Mar 2024 14:53:04 +0500
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Subject: [PATCH] HACK: clk: Delay disabling unused clocks by 10s
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There is a forever-lasting problem with qcom clocks that causes display
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subsystem crash due to "disp_cc_mdss_mdp_clk status stuck at 'off'" if
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the clocks were cleaned up before msm claimed this one.
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Delay disabling unused clocks by 10 seconds to work around this.
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Signed-off-by: Nikita Travkin <nikita@trvn.ru>
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---
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drivers/clk/clk.c | 24 ++++++++++++++++--------
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1 file changed, 16 insertions(+), 8 deletions(-)
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diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
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index 50228cb0c559..f0647ecca9ac 100644
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--- a/drivers/clk/clk.c
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+++ b/drivers/clk/clk.c
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@@ -1347,7 +1347,7 @@ static void clk_core_disable_unprepare(struct clk_core *core)
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clk_core_unprepare_lock(core);
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}
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-static void __init clk_unprepare_unused_subtree(struct clk_core *core)
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+static void clk_unprepare_unused_subtree(struct clk_core *core)
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{
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struct clk_core *child;
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@@ -1377,7 +1377,7 @@ static void __init clk_unprepare_unused_subtree(struct clk_core *core)
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clk_pm_runtime_put(core);
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}
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-static void __init clk_disable_unused_subtree(struct clk_core *core)
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+static void clk_disable_unused_subtree(struct clk_core *core)
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{
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struct clk_core *child;
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unsigned long flags;
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@@ -1431,15 +1431,10 @@ static int __init clk_ignore_unused_setup(char *__unused)
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}
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__setup("clk_ignore_unused", clk_ignore_unused_setup);
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-static int __init clk_disable_unused(void)
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+static void clk_disable_unused_work_function(struct work_struct *work)
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{
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struct clk_core *core;
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- if (clk_ignore_unused) {
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- pr_warn("clk: Not disabling unused clocks\n");
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- return 0;
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- }
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-
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pr_info("clk: Disabling unused clocks\n");
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clk_prepare_lock();
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@@ -1457,6 +1452,19 @@ static int __init clk_disable_unused(void)
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clk_unprepare_unused_subtree(core);
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clk_prepare_unlock();
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+}
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+static DECLARE_DELAYED_WORK(clk_disable_unused_work,
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+ clk_disable_unused_work_function);
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+
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+static int __init clk_disable_unused(void)
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+{
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+ if (clk_ignore_unused) {
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+ pr_warn("clk: Not disabling unused clocks\n");
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+ return 0;
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+ }
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+
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+ schedule_delayed_work(&clk_disable_unused_work,
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+ msecs_to_jiffies(10000));
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return 0;
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}
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--
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2.44.0
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