diff options
| author | Deepak Nibade <dnibade@nvidia.com> | 2013-09-11 15:08:17 +0530 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-26 19:45:38 -0700 |
| commit | 07ef3ad4aa88886e98c9a931558ae96a4495ae81 (patch) | |
| tree | 8d02d5371b1433bd7867055a9609aaa0e8a7c094 /arch/arm/mach-tegra/pm-t3.c | |
| parent | 1bd0c7fc716f9e5e91e484f1a1cc6facfdfe2076 (diff) | |
ARM: tegra: fix warning during LP0
- with CONFIG_DEBUG_ATOMIC_SLEEP enabled, below warning was seen
BUG: sleeping function called from invalid context at
/kernel/kernel/mutex.c:85
- function 'tegra_get_clock_by_name()' was being called from
atomic context in 'tegra_lp0_cpu_mode()'
- move function tegra_get_clock_by_name("cclk_lp")
to separate init function and call it through subsys_initcall()
to avoid this warning during LP0
Bug 1355279
Bug 1318641
Change-Id: I42df042051938d75366884946e7f660522f3c26c
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/273034
(cherry picked from commit 9c126a72c41aa66fb9bf394426e331d379aa5c40)
Reviewed-on: http://git-master/r/275055
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/pm-t3.c')
| -rw-r--r-- | arch/arm/mach-tegra/pm-t3.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/arm/mach-tegra/pm-t3.c b/arch/arm/mach-tegra/pm-t3.c index a6918766f97c..a405bdb82d99 100644 --- a/arch/arm/mach-tegra/pm-t3.c +++ b/arch/arm/mach-tegra/pm-t3.c @@ -115,6 +115,8 @@ #define CLK_RST_CONTROLLER_PLLX_MISC_0 \ (IO_ADDRESS(TEGRA_CLK_RESET_BASE) + 0xE4) +static struct clk *cclk_lp; + static int cluster_switch_prolog_clock(unsigned int flags) { u32 reg; @@ -651,15 +653,20 @@ void tegra_lp0_resume_mc(void) tegra_mc_timing_restore(); } +static int __init get_clock_cclk_lp(void) +{ + if (!cclk_lp) + cclk_lp = tegra_get_clock_by_name("cclk_lp"); + return 0; +} + +subsys_initcall(get_clock_cclk_lp); + void tegra_lp0_cpu_mode(bool enter) { - static struct clk *cclk_lp; static bool entered_on_g = false; unsigned int flags; - if (!cclk_lp) - cclk_lp = tegra_get_clock_by_name("cclk_lp"); - if (enter) entered_on_g = !is_lp_cluster(); |