RE: [PATCHv2] OMAP3: CPUIdle: prevent CORE from going off if doing so would reset an active clockdomain

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

 



> -----Original Message-----
> From: Tero Kristo [mailto:tero.kristo@xxxxxxxxx]
> Sent: Friday, January 21, 2011 4:07 PM
> To: linux-omap@xxxxxxxxxxxxxxx
> Cc: Paul Walmsley; Kevin Hilman; Santosh Shilimkar; Vishwanath
> Sripathy
> Subject: [PATCHv2] OMAP3: CPUIdle: prevent CORE from going off if
> doing so would reset an active clockdomain
>
> On OMAP3 SoCs, if the CORE powerdomain enters off-mode, many other
> parts of the chip will be reset.  If those parts of the chip are
> busy,
> the reset will disrupt them, causing unpredictable and generally
> undesirable results. This reset is caused by the core domain wakeup
> (COREDOMAINWKUP_RST), and it can occur for example in a case where
> some peripheral domain is in retention or inactive state and core
> enters off. This will result in the peripheral domain being reset.
>
> Signed-off-by: Tero Kristo <tero.kristo@xxxxxxxxx>
> Cc: Paul Walmsley <paul@xxxxxxxxx>
> Cc: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
> Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
> Cc: Vishwanath Sripathy <vishwanath.bs@xxxxxx>
> ---
Thanks for update Tero.
If you like,
Acked-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
--
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