Hello Sergio,
On Thu, 4 Sep 2008, Aguirre Rodriguez, Sergio Alberto wrote:
> I'm working on camera implementation, and I want to debug why the cam_mclk
> clock is returning me a "count exceeded" message, although seems to be
> properly taken. (i.e. MT9P012 + ISP sensor works fine)
>
> I'm having this message when trying to acquire it:
>
> Clock cam_mclk didn't enable in 100000 tries
>
> Any clue why is that?
Yes, I think so. Does this patch fix the problem for you?
- Paul
[PATCH] OMAP3 clock: camera module has no target IDLEST bit
From: Paul Walmsley <[EMAIL PROTECTED]>
We must not attempt to wait for the CAM module to become ready after
clock enable, since it has no target IDLEST bit.
Thanks to Sergio Alberto Aguirre Rodriguez <[EMAIL PROTECTED]> for
reporting this.
Signed-off-by: Paul Walmsley <[EMAIL PROTECTED]>
Cc: "Aguirre Rodriguez, Sergio Alberto" <[EMAIL PROTECTED]>
---
arch/arm/mach-omap2/clock.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index be5c616..189b8a6 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -256,6 +256,10 @@ static void omap2_clk_wait_ready(struct clk *clk)
/* REVISIT: What are the appropriate exclusions for 34XX? */
if (cpu_is_omap34xx()) {
+ /* CAM */
+ if (prcm_mod == OMAP34XX_CM_REGADDR(OMAP3430_CAM_MOD, 0))
+ return;
+
/* SSI */
if (prcm_mod == OMAP34XX_CM_REGADDR(CORE_MOD, 0) &&
(reg & 0x0f) == 0 &&
--
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