Messages in this thread | | | Date | Tue, 4 Jun 2013 09:19:57 +0200 | Subject | Re: [PATCH 09/11] mmc: omap_hsmmc: enhance pinctrl support | From | Linus Walleij <> |
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On Tue, Jun 4, 2013 at 9:11 AM, Linus Walleij <linus.walleij@linaro.org> wrote: > On Fri, May 31, 2013 at 12:13 PM, Hebbar Gururaja > <gururaja.hebbar@ti.com> wrote: > >> 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. >> >> Signed-off-by: Hebbar Gururaja <gururaja.hebbar@ti.com> >> Cc: Balaji T K <balajitk@ti.com> >> Cc: Chris Ball <cjb@laptop.org> >> Cc: linux-mmc@vger.kernel.org >> Cc: linux-omap@vger.kernel.org > > This is perfectly correct. > Acked-by: Linus Walleij <linus.walleij@linaro.org>
So please consider my other option given in patch 2 instead.
Yours, Linus Walleij
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