diff options
| author | Rajendra Nayak <rnayak@ti.com> | 2011-07-10 05:56:55 -0600 |
|---|---|---|
| committer | Paul Walmsley <paul@pwsan.com> | 2011-07-10 05:56:55 -0600 |
| commit | 555e74ea08bfc04a0136f976cbaa200addf1ba87 (patch) | |
| tree | afac050a2669fcf1e47d764785f9007c568b9e15 /arch/arm/mach-omap2/clockdomain2xxx_3xxx.c | |
| parent | b86cfb52a145d8ddad66b98c39c6764f3883cd5a (diff) | |
| download | talos-obmc-linux-555e74ea08bfc04a0136f976cbaa200addf1ba87.tar.gz talos-obmc-linux-555e74ea08bfc04a0136f976cbaa200addf1ba87.zip | |
OMAP2+: clockdomain: Add per clkdm lock to prevent concurrent state programming
Since the clkdm state programming is now done from within the hwmod
framework (which uses a per-hwmod lock) instead of the being done
from the clock framework (which used a global lock), there is now a
need to have per-clkdm locking to prevent races between different
hwmods/modules belonging to the same clock domain concurrently
programming the clkdm state.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Diffstat (limited to 'arch/arm/mach-omap2/clockdomain2xxx_3xxx.c')
| -rw-r--r-- | arch/arm/mach-omap2/clockdomain2xxx_3xxx.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c index 48d0db7e6069..f740edb111f4 100644 --- a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c +++ b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c @@ -183,7 +183,8 @@ static int omap2_clkdm_clk_enable(struct clockdomain *clkdm) _clkdm_add_autodeps(clkdm); _enable_hwsup(clkdm); } else { - clkdm_wakeup(clkdm); + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + omap2_clkdm_wakeup(clkdm); } return 0; @@ -205,7 +206,8 @@ static int omap2_clkdm_clk_disable(struct clockdomain *clkdm) _clkdm_del_autodeps(clkdm); _enable_hwsup(clkdm); } else { - clkdm_sleep(clkdm); + if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP) + omap2_clkdm_sleep(clkdm); } return 0; |
