diff options
| author | Abhijit Pagare <abhijitpagare@ti.com> | 2010-01-09 01:23:04 +0300 |
|---|---|---|
| committer | Paul Walmsley <paul@pwsan.com> | 2010-01-09 01:23:04 +0300 |
| commit | 98bb155130aca96f26b12b50a38db806a0021e59 (patch) | |
| tree | 4b990df4d11e3c6a20c74747e37e6e4232dcaf32 /arch/arm/mach-omap2/clockdomain.c | |
| parent | 48bca0e9c7f428dc75ea2a9c37601e6cb47dae6f (diff) | |
| download | linux-98bb155130aca96f26b12b50a38db806a0021e59.tar.xz | |
ARM: OMAP3: PM: Fix the Invalid CM_CLKSTCTRL reg access.
In OMAP2/3 some of the clock-domains which did not have control
facility were being falsely written to and read using the CM_CLKSTCTRL
register though it did not exist for them. One check is added to remove
this flaw.
Signed-off-by: Abhijit Pagare <abhijitpagare@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2/clockdomain.c')
| -rw-r--r-- | arch/arm/mach-omap2/clockdomain.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c index 1a45ed1e8ba1..dd285f001467 100644 --- a/arch/arm/mach-omap2/clockdomain.c +++ b/arch/arm/mach-omap2/clockdomain.c @@ -559,7 +559,7 @@ int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk) * downstream clocks for debugging purposes? */ - if (!clkdm || !clk) + if (!clkdm || !clk || !clkdm->clktrctrl_mask) return -EINVAL; if (atomic_inc_return(&clkdm->usecount) > 1) @@ -610,7 +610,7 @@ int omap2_clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk) * downstream clocks for debugging purposes? */ - if (!clkdm || !clk) + if (!clkdm || !clk || !clkdm->clktrctrl_mask) return -EINVAL; #ifdef DEBUG |