From: Abhijit Pagare <abhijitpag...@ti.com>
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 <abhijitpag...@ti.com>
Signed-off-by: Paul Walmsley <p...@pwsan.com>
Cc: Benoit Cousson <b-cous...@ti.com>
Cc: Rajendra Nayak <rna...@ti.com>
---
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 1a45ed1..dd285f0 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
--
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