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| author | Tero Kristo <t-kristo@ti.com> | 2016-02-20 13:12:57 +0200 |
|---|---|---|
| committer | Stephen Boyd <sboyd@codeaurora.org> | 2016-02-22 14:03:02 -0800 |
| commit | a0d54c3899aaeb047969d9479263c6bcf385c331 (patch) | |
| tree | af6418016466901b116c45d376ae11f935f017fd /drivers | |
| parent | 4462b4bbfc33a44f19710ead784ff361bda2c3b3 (diff) | |
| download | linux-a0d54c3899aaeb047969d9479263c6bcf385c331.tar.gz linux-a0d54c3899aaeb047969d9479263c6bcf385c331.tar.bz2 linux-a0d54c3899aaeb047969d9479263c6bcf385c331.zip | |
clk: ti: omap3+: dpll: use non-locking version of clk_get_rate
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>
Diffstat (limited to 'drivers')
| -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 1c300388782b..cc739291a3ce 100644 --- a/drivers/clk/ti/dpll3xxx.c +++ b/drivers/clk/ti/dpll3xxx.c @@ -460,7 +460,8 @@ 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 { |