[PATCH] ARM: OMAP2xxx: PM: fix OMAP2xxx-specific UART idle bug in v3.3
tony at atomide.com
Thu Feb 9 20:52:25 EST 2012
* Paul Walmsley <paul at pwsan.com> [120209 16:52]:
> [ This patch is targeted for v3.3-rc ]
> On OMAP2420-based systems, the PM code ignores the state of the UART
> functional clocks when determining what idle state to enter. This
> breaks the serial port now that the UART driver's clock behavior can
> be controlled via the PM autosuspend timeout.
> To fix, remove the special-case idle handling for the UARTs in the
> OMAP2420/2430 PM idle code added by commit
> 4af4016c53f52b26461b8030211f8427a58fa5ed ("OMAP3: PM: UART: disable
> clocks when idle and off-mode support").
> Tested on Nokia N800. This patch is a collaboration between Tony
> Lindgren <tony at atomide.com> and Paul Walmsley <paul at pwsan.com>.
Glad to see this piece of code finally gone with runtime PM :)
Applying into fixes.
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