Re: [PATCH] OMAP: HSMMC: Initialize hsmmc controller registers when resuming

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Friday 20 February 2009, Kim Kyuwon wrote:
> +static void omap_hsmmc_init(struct mmc_omap_host *host)
> +{
> +       u32 hctl, capa, value;
> +
> +       /* Only MMC1 supports 3.0V */
> +       if (host->id == OMAP_MMC1_DEVID) {
> +               hctl = SDVS30;

Shouldn't it be remembering what voltage it was using,
and then restore that, instead of always making MMC1
restart at a 3.0V level?  That's pretty awkward to test
unless you have a 1.8V-capable card in MMC1...

Somewhat related:  I think the PBIAS register updates
should be moved out of mach-omap2/mmc-twl4030.c into
this driver.  They're needed no matter what flavor
regulator is used to with MMC1 voltage over 1.8V,
and it's a bit odd to split the state machine for
1.8V -vs- 3.0V I/O voltages the way it's now done.

- Dave

--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux