On Tue, May 31, 2011 at 6:56 PM, Tony Lindgren <tony@xxxxxxxxxxx> wrote:
> * Balaji T K <balajitk@xxxxxx> [110530 07:23]:
>> eMMC does not handle power off when not in sleep state,
>> Skip regulator disable during probe when eMMC is
>> not in known state - state left by bootloader.
>>
>> Resolves eMMC failure on OMAP4
>> mmc0: error -110 whilst initialising MMC card
>>
>> --- a/arch/arm/mach-omap2/hsmmc.h
>> +++ b/arch/arm/mach-omap2/hsmmc.h
>> @@ -18,6 +18,7 @@ struct omap2_hsmmc_info {
>> bool nonremovable; /* Nonremovable e.g. eMMC */
>> bool power_saving; /* Try to sleep or power off when possible */
>> bool no_off; /* power_saving and power is not to go off */
>> + bool no_off_init; /* no power off when not in MMC sleep state */
>> bool vcc_aux_disable_is_sleep; /* Regulator off remapped to sleep */
>> int gpio_cd; /* or -EINVAL */
>> int gpio_wp; /* or -EINVAL */
>
> Can't you use no_off for this too?
no_off is used for devices which do not want to disable regulator at any time.
newly introduced no_off_init is to skip disable regulator only during probe
After eMMC is put in sleep state (while suspend), regulator for eMMC
(VAUX1) can be disabled.
--
Thanks and Regards,
Balaji T K
>
> 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
