* Balaji T K <balajitk@xxxxxx> [130607 06:42]: > On Tuesday 04 June 2013 08:16 PM, Tony Lindgren wrote: > >* Hebbar Gururaja <gururaja.hebbar@xxxxxx> [130531 03:19]: > >>Amend the hsmmc controller to optionally take a pin control handle and > >>set the state of the pins to: > >> > >>- "default" on boot, resume and before performing a mmc transfer > >>- "idle" after initial default, after resume default, and after each > >>mmc/sd card access > >>- "sleep" on suspend() > >> > >>By optionally putting the pins into sleep state in the suspend callback > >>we can accomplish two things. > >>- One is to minimize current leakage from pins and thus save power, > >>- second, we can prevent the IP from driving pins output in an > >>uncontrolled manner, which may happen if the power domain drops the > >>domain regulator. > >> > >>If any of the above pin states are missing in dt, a warning message > >>about the missing state is displayed. > >>If certain pin-states are not available, to remove this warning message > >>pass respective state name with null phandler. > > > >There's a similar patch in the "[RESEND PATCH v2 1/3] mmc: omap_hsmmc: > >Enable SDIO IRQ using a GPIO in idle mode" thread. It also makes the > >SDIO interrupts to work, so we need to consider that too. > > > > Hi Tony, > > I will try to combine both of these and make use of > pinctrl_pm_select_[*]_state helper functions. OK thanks, I'll separate out the pinctrl parts from Andreas' patch and repost. Regards, Tony -- 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
