Hi, On Wed, Jun 13 2012, Guennadi Liakhovetski wrote: > On Tue, 12 Jun 2012, Laurent Pinchart wrote: > >> The tmio_mmc_set_ios() function configures the MMC power, clock and bus >> width. When the mmc core requests the driver to power off the card, we >> inform runtime PM, that the controller can be suspended. This can lead >> to the MSTP clock being turned off. >> >> Writing to any 16-bit hardware registers with the MSTP clock off leads >> to timeouts and errors being printed to the kernel log. This can occur >> both when stopping the MMC clock and when configuring the bus width. >> >> To fix this, stop the MMC clock before calling put_runtime_pm(), and >> skip bus width configuration when power is off. >> >> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > > Acked-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx> Thanks, pushed to mmc-next for 3.6. - Chris. -- Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/> One Laptop Per Child -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
