diff options
| author | Tero Kristo <t-kristo@ti.com> | 2016-02-20 13:12:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-10 10:26:18 +0200 |
| commit | 4879a1ddabda9cbf60aa86534c8c2ff93a092b1e (patch) | |
| tree | 89be2f6a9bc5b72cbaf34eb43ed725673d2b0244 /drivers/clk | |
| parent | 2e75386d097315a61d23d941d5da082b56fcdc92 (diff) | |
clk: ti: omap3+: dpll: use non-locking version of clk_get_rate
commit a0d54c3899aaeb047969d9479263c6bcf385c331 upstream.
As the code in this file is being executed within irq context in some
cases, we must avoid the clk_get_rate which uses mutex internally.
Switch the code to use clk_hw_get_rate instead which is non-locking.
This fixes an issue where PM runtime will hang the system if enabled
with a serial console before a suspend-resume cycle.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Fixes: a53ad8ef3dcc ("clk: ti: Convert to clk_hw based provider APIs")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/ti/dpll3xxx.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/clk/ti/dpll3xxx.c b/drivers/clk/ti/dpll3xxx.c index 0e9119fae760..fa53bf6bd041 100644 --- a/drivers/clk/ti/dpll3xxx.c +++ b/drivers/clk/ti/dpll3xxx.c @@ -437,7 +437,8 @@ int omap3_noncore_dpll_enable(struct clk_hw *hw) parent = clk_hw_get_parent(hw); - if (clk_hw_get_rate(hw) == clk_get_rate(dd->clk_bypass)) { + if (clk_hw_get_rate(hw) == + clk_hw_get_rate(__clk_get_hw(dd->clk_bypass))) { WARN_ON(parent != __clk_get_hw(dd->clk_bypass)); r = _omap3_noncore_dpll_bypass(clk); } else { |