diff options
author | Stephen Boyd <sboyd@kernel.org> | 2022-08-31 20:53:25 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-08 12:11:38 +0300 |
commit | 4ff599df312fd84c3240b38a7cab026c99fe8d4b (patch) | |
tree | 74e7131daa2947a046aed45895851d4d5ea2acc0 /drivers/clk | |
parent | c0f0ed9ef9b625ca0584d54c55b3f8117cfabf47 (diff) | |
download | linux-4ff599df312fd84c3240b38a7cab026c99fe8d4b.tar.xz |
Revert "clk: core: Honor CLK_OPS_PARENT_ENABLE for clk gate ops"
[ Upstream commit abb5f3f4b1f5f0ad50eb067a00051d3587dec9fb ]
This reverts commit 35b0fac808b95eea1212f8860baf6ad25b88b087. 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: 35b0fac808b9 ("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
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/clk')
-rw-r--r-- | drivers/clk/clk.c | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 4f20d5318183..2e56cc0a3bce 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -203,9 +203,6 @@ 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; @@ -218,11 +215,7 @@ 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); } @@ -258,13 +251,7 @@ 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); @@ -831,9 +818,6 @@ 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); @@ -857,9 +841,6 @@ 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) @@ -868,9 +849,6 @@ static void clk_core_unprepare(struct clk_core *core) clk_pm_runtime_put(core); trace_clk_unprepare_complete(core); - - if (core->flags & CLK_OPS_PARENT_ENABLE) - clk_core_disable_lock(core->parent); clk_core_unprepare(core->parent); } @@ -919,9 +897,6 @@ 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) @@ -929,9 +904,6 @@ 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; } |