linux-kernel - Re: [PATCHv3] mmc: atmel-mci: add vmmc-supply support

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Date:	Wed, 18 Dec 2013 09:16:45 +0100
From:	Ludovic Desroches <ludovic.desroches@...el.com>
To:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
CC:	Ulf Hansson <ulf.hansson@...aro.org>, Chris Ball <cjb@...top.org>,
	linux-mmc <linux-mmc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ludovic Desroches <ludovic.desroches@...el.com>
Subject: Re: [PATCHv3] mmc: atmel-mci: add vmmc-supply support

Hi Alexandre,

On Tue, Dec 17, 2013 at 08:03:12PM +0100, Alexandre Belloni wrote:
> Hi,
> 
> It seems that patch never made it to the mainline. Is it still missing
> something ?

No reason on my side, maybe because my ack is missing but I thought I
gave it on a previous version, maybe I am wrong.

So Acked-by: Ludovic Desroches <ludovic.desroches@...el.com>


Regards

Ludovic

> 
> Regards,
> 
> On 17/10/2013 15:56, Ulf Hansson wrote:
> > On 17 October 2013 12:46, Alexandre Belloni
> > <alexandre.belloni@...e-electrons.com> wrote:
> >> Other MMC hosts handle a regulator named vmmc-supply that allows to power the
> >> MMC card or SDIO device before communicating on the bus.
> >>
> >> Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
> > Acked-by: Ulf Hansson <ulf.hansson@...aro.org>
> >
> >> ---
> >>
> >> Changes in v2:
> >>  - use mmc_regulator_get_supply instead of devm_regulator_get
> >>
> >> Changes in v3:
> >>  - en/disable the regulator in .set_ios using mmc_regulator_set_ocr
> >>
> >>  drivers/mmc/host/atmel-mci.c | 7 +++++++
> >>  1 file changed, 7 insertions(+)
> >>
> >> diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
> >> index 69e438e..a9e1ba6 100644
> >> --- a/drivers/mmc/host/atmel-mci.c
> >> +++ b/drivers/mmc/host/atmel-mci.c
> >> @@ -1385,8 +1385,14 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
> >>                 clk_unprepare(host->mck);
> >>
> >>         switch (ios->power_mode) {
> >> +       case MMC_POWER_OFF:
> >> +               if (!IS_ERR(mmc->supply.vmmc))
> >> +                       mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
> >> +               break;
> >>         case MMC_POWER_UP:
> >>                 set_bit(ATMCI_CARD_NEED_INIT, &slot->flags);
> >> +               if (!IS_ERR(mmc->supply.vmmc))
> >> +                       mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);
> >>                 break;
> >>         default:
> >>                 /*
> >> @@ -2196,6 +2202,7 @@ static int __init atmci_init_slot(struct atmel_mci *host,
> >>         }
> >>
> >>         host->slot[id] = slot;
> >> +       mmc_regulator_get_supply(mmc);
> >>         mmc_add_host(mmc);
> >>
> >>         if (gpio_is_valid(slot->detect_pin)) {
> >> --
> >> 1.8.1.2
> >>
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
> > the body of a message to majordomo@...r.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 
> -- 
> Alexandre Belloni, Free Electrons
> Embedded Linux, Kernel and Android engineering
> http://free-electrons.com
> 
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