[PATCH 5/8] OMAP4: PM: TEMP: Prevent l3init from idling/force sleep

[Russell King - ARM Linux]

On Thu, Jun 23, 2011 at 09:04:20AM -0600, Paul Walmsley wrote:
> Since this is basically a hack to work around limitations of the current 
> MMC driver, if we accept something like this, I think it should come with 
> a big warning message and comment.  Something like this in 
> omap44xx_clockdomains_init():
> 
> 	/*
> 	 * XXX The OMAP L3 interconnect hardware is able to enter
> 	 * hardware-supervised idle.  But because the OMAP HSMMC
> 	 * driver still hasn't been converted to use runtime PM, if
> 	 * the L3 is allowed to enter hwsup idle, the kernel will
> 	 * crash.  Once the MMC driver is fixed (which patches have
> 	 * been posted to do, with subject line "OMAP: HSMMC: cleanup
> 	 * and runtime pm") the change to the l3_init_44xx_clkdm
> 	 * flags should be dropped.  It limits the low-power state that
> 	 * the chip can enter.
> 	 */
> 	pr_warn("WARNING: OMAP4 low power states artificially limited, due 
> to unconverted HSMMC driver\n");

Do you really want to continue pissing Linus off with churn like this
rather than pressing to get problems fixed _properly_ (eg, getting the
HSMMC driver fixed) ?