Re: Linux 3.0 DSS support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 10/25/2011 03:37 AM, Tomi Valkeinen wrote:
> Hi,
>
> On Mon, 2011-10-24 at 13:55 -0400, Peter Barada wrote:
>> In the above case (and my case where I'm looking for a 9Mhz pixel 
>> clock), fck_div is calculated at higher than 16 - and the video
>> output 
>> is wrong (i.e. no pixel clock and hsync runs at 32x the requested
>> rate). 
> DM37x TRM says:
>
> "DSS1_ALWON_FCLK: Issued from DPLL4. Its frequency can be a division by
> 1 to 16 of the frequency of the DPLL4 synthesized clock."
>
> I take it that DM37x is detected as cpu_is_3630()?
>
> The DSS driver currently handles only OMAPs, so for other SoCs the
> driver may contain lots of bugs like this.
Yes, cpu_is_omap3630() returns true on a DM3730.  I'll rework the patch
(I think all that is needed is to drop the "cpu_is_omap3630() ||" from
the test - then fck_div_max will remain at 16 for the DM3730.

-- 
Peter Barada
peter.barada@xxxxxxxxx

--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux