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Revert "clk: core: Honor CLK_OPS_PARENT_ENABLE for clk gate ops" 

This reverts commit 35b0fac808. Alexander
reports that it causes boot failures on i.MX8M Plus based boards
(specifically imx8mp-tqma8mpql-mba8mpxl.dts).

Reported-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Cc: Chen-Yu Tsai <wenst@chromium.org>
Fixes: 35b0fac808 ("clk: core: Honor CLK_OPS_PARENT_ENABLE for clk gate ops")
Link: https://lore.kernel.org/r/12115951.O9o76ZdvQC@steina-w
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20220831175326.2523912-1-sboyd@kernel.org
This commit is contained in:
Stephen Boyd 2022-08-31 10:53:25 -07:00
parent 1a6052e148
commit abb5f3f4b1
1 changed files with 0 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
drivers/clk/clk.c
View File

@ -196,9 +196,6 @@ static bool clk_core_rate_is_protected(struct clk_core *core)
return core->protect_count;
}
static int clk_core_prepare_enable(struct clk_core *core);
static void clk_core_disable_unprepare(struct clk_core *core);
static bool clk_core_is_prepared(struct clk_core *core)
{
bool ret = false;
@ -211,11 +208,7 @@ static bool clk_core_is_prepared(struct clk_core *core)
return core->prepare_count;
if (!clk_pm_runtime_get(core)) {
if (core->flags & CLK_OPS_PARENT_ENABLE)
clk_core_prepare_enable(core->parent);
ret = core->ops->is_prepared(core->hw);
if (core->flags & CLK_OPS_PARENT_ENABLE)
clk_core_disable_unprepare(core->parent);
clk_pm_runtime_put(core);
}
@ -251,13 +244,7 @@ static bool clk_core_is_enabled(struct clk_core *core)
}
}
if (core->flags & CLK_OPS_PARENT_ENABLE)
clk_core_prepare_enable(core->parent);
ret = core->ops->is_enabled(core->hw);
if (core->flags & CLK_OPS_PARENT_ENABLE)
clk_core_disable_unprepare(core->parent);
done:
if (core->rpm_enabled)
pm_runtime_put(core->dev);
@ -825,9 +812,6 @@ int clk_rate_exclusive_get(struct clk *clk)
}
EXPORT_SYMBOL_GPL(clk_rate_exclusive_get);
static int clk_core_enable_lock(struct clk_core *core);
static void clk_core_disable_lock(struct clk_core *core);
static void clk_core_unprepare(struct clk_core *core)
{
lockdep_assert_held(&prepare_lock);
@ -851,18 +835,12 @@ static void clk_core_unprepare(struct clk_core *core)
WARN(core->enable_count > 0, "Unpreparing enabled %s\n", core->name);
if (core->flags & CLK_OPS_PARENT_ENABLE)
clk_core_enable_lock(core->parent);
trace_clk_unprepare(core);
if (core->ops->unprepare)
core->ops->unprepare(core->hw);
trace_clk_unprepare_complete(core);
if (core->flags & CLK_OPS_PARENT_ENABLE)
clk_core_disable_lock(core->parent);
clk_core_unprepare(core->parent);
clk_pm_runtime_put(core);
}
@ -912,9 +890,6 @@ static int clk_core_prepare(struct clk_core *core)
if (ret)
goto runtime_put;
if (core->flags & CLK_OPS_PARENT_ENABLE)
clk_core_enable_lock(core->parent);
trace_clk_prepare(core);
if (core->ops->prepare)
@ -922,9 +897,6 @@ static int clk_core_prepare(struct clk_core *core)
trace_clk_prepare_complete(core);
if (core->flags & CLK_OPS_PARENT_ENABLE)
clk_core_disable_lock(core->parent);
if (ret)
goto unprepare;
}