On 12 August 2015 at 16:49, Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
> Hi,
>
> On 08/12/2015 03:29 PM, Michal Suchanek wrote:
>>
>> The 250ms timeout is too short.
>>
>> On my system enabling the oclk takes under 50ms and disabling slightly
>> over 100ms when idle. Under load disabling the clock can take over
>> 350ms.
>>
>> This does not make mmc clock gating look like good option to have on
>> sunxi but the system should not crash with mmc clock gating enabled
>> nonetheless.
>>
>> This patch sets the timeout to 750ms.
>>
>> Signed-off-by: Michal Suchanek <hramrach@xxxxxxxxx>
>>
>> ---
>> v3
>> - remove debug message
>
>
> Thanks, this one looks good to me:
>
> Acked-by: Hans de Goede <hdegoede@xxxxxxxxxx>
>
> Ulf, can you apply this one please?
>
> Thanks & Regards,
>
> Hans
>
Thanks, applied for next!
Kind regards
Uffe
>
>
>> v2
>> - fix formatting
>> ---
>> drivers/mmc/host/sunxi-mmc.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
>> index 4d3e1ff..a7b7a67 100644
>> --- a/drivers/mmc/host/sunxi-mmc.c
>> +++ b/drivers/mmc/host/sunxi-mmc.c
>> @@ -595,7 +595,7 @@ static irqreturn_t sunxi_mmc_handle_manual_stop(int
>> irq, void *dev_id)
>>
>> static int sunxi_mmc_oclk_onoff(struct sunxi_mmc_host *host, u32
>> oclk_en)
>> {
>> - unsigned long expire = jiffies + msecs_to_jiffies(250);
>> + unsigned long expire = jiffies + msecs_to_jiffies(750);
>> u32 rval;
>>
>> rval = mmc_readl(host, REG_CLKCR);
>>
>
--
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
