On Thu, Jul 23, 2009 at 09:50:03AM +0300, Ohad Ben-Cohen wrote:
> Hi Andrew,
>
> On Thu, Jul 23, 2009 at 9:22 AM, Andrew Morton<akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> > I actually already have a little pile of MMC things queued:
>
> Please also consider queuing up the attached patch as well.
>
> The patch is removing the current SDIO cards 1.8V limit, which is
> needed for embedded
> SDIO devices like TI 127x WLAN devices (with 1.8V MMC controllers like we
> have on the ZOOM2 boards for example).
>
> Thank you,
> Ohad.
> From f9ba45b537dd12fc09443ee29c48860665f8ac82 Mon Sep 17 00:00:00 2001
> From: Ohad Ben-Cohen <ohad@xxxxxxxxxxxx>
> Date: Wed, 15 Jul 2009 09:21:41 +0300
> Subject: [PATCH] sdio: do not ignore MMC_VDD_165_195
>
> This is needed for 1.8V embedded SDIO devices and supporting host controllers
> (e.g. TI 127x and ZOOM2 boards)
>
> Signed-off-by: Ohad Ben-Cohen <ohad@xxxxxxxxxxxx>
> ---
> drivers/mmc/core/sdio.c | 7 -------
> 1 files changed, 0 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
> index fb99ccf..6f221dc 100644
> --- a/drivers/mmc/core/sdio.c
> +++ b/drivers/mmc/core/sdio.c
> @@ -275,13 +275,6 @@ int mmc_attach_sdio(struct mmc_host *host, u32 ocr)
> ocr &= ~0x7F;
> }
>
> - if (ocr & MMC_VDD_165_195) {
> - printk(KERN_WARNING "%s: SDIO card claims to support the "
> - "incompletely defined 'low voltage range'. This "
> - "will be ignored.\n", mmc_hostname(host));
> - ocr &= ~MMC_VDD_165_195;
> - }
> -
> host->ocr = mmc_select_voltage(host, ocr);
>
> /*
> --
> 1.5.4.3
>
Looks OK to me, I'm unaware of a reason to not allow a card to use
MMC_VDD_165_195 if that's what it wants.
Acked-by: Matt Fleming <matt@xxxxxxxxxxxxxxxxx>
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