On Wed, Jan 30, 2013 at 3:53 AM, Chanho Min wrote:
>> Anyway I just want to know we still need auto scale of poll rate.
> I correct the mistake in this sentence.
> Anyway I just want to know whether we still need auto scale of poll rate or
> not.
For the console/TTY and modem usecase I think it
> Anyway I just want to know we still need auto scale of poll rate.
I correct the mistake in this sentence.
Anyway I just want to know whether we still need auto scale of poll rate or not.
Thanks
Chanho
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> Then it can use DMA polling post-wakeup?
Yes, It will be switched back to DMA polling on UART IRQ.
> What do you mean by "user" here? Userspace? Or
> "platform data parameter"?
platform data parameter
> Not platform I think. Per usecase.
> Are you not actually thinking about things like the abo
On Tue, Jan 29, 2013 at 3:41 AM, Chanho Min wrote:
> On Mon, Jan 28, 2013 at 5:28 PM, Linus Walleij
> wrote:
>> On Mon, Jan 28, 2013 at 9:15 AM, Chanho Min wrote:
>>> [Russell]
Well, I thought I had explained that I'd prefer to see the poll rate
adjusted with the baud rate, but maybe I
On Mon, Jan 28, 2013 at 5:28 PM, Linus Walleij wrote:
> On Mon, Jan 28, 2013 at 9:15 AM, Chanho Min wrote:
>> [Russell]
>>>Well, I thought I had explained that I'd prefer to see the poll rate
>>>adjusted with the baud rate, but maybe I wasn't explicit enough.
>>>Instead, what we seem to have ende
On Mon, Jan 28, 2013 at 9:15 AM, Chanho Min wrote:
> [Russell]
>>Well, I thought I had explained that I'd prefer to see the poll rate
>>adjusted with the baud rate, but maybe I wasn't explicit enough.
>>Instead, what we seem to have ended up with are two new entries in
>>platform data (which we're
>Well, I thought I had explained that I'd prefer to see the poll rate
>adjusted with the baud rate, but maybe I wasn't explicit enough.
>Instead, what we seem to have ended up with are two new entries in
>platform data (which we're trying to get away from with DT):
>
>+ unsigned int dma_rx_po
On Fri, Jan 25, 2013 at 12:25:07PM -0800, Greg Kroah-Hartman wrote:
> On Wed, Jan 23, 2013 at 02:07:57PM +0900, Chanho Min wrote:
> > On Tue, Jan 22, 2013 at 10:18 PM, Linus Walleij
> > wrote:
> > >> - If poll timer is activated, We use consistent DMA mappings to avoid
> > >> from
> > >> the fr
On Wed, Jan 23, 2013 at 02:07:57PM +0900, Chanho Min wrote:
> On Tue, Jan 22, 2013 at 10:18 PM, Linus Walleij
> wrote:
> >> - If poll timer is activated, We use consistent DMA mappings to avoid from
> >> the frequent cache operation of the timer function. sg->coherency is used
> >> to check if
On Tue, Jan 22, 2013 at 10:18 PM, Linus Walleij
wrote:
>> - If poll timer is activated, We use consistent DMA mappings to avoid from
>> the frequent cache operation of the timer function. sg->coherency is used
>> to check if buffer is coherent.
>
> Hm. We can begin like this but maybe we shoul
On Tue, Jan 22, 2013 at 1:45 PM, Chanho Min wrote:
> In DMA support, The received data is not pushed to tty until the DMA buffer
> is filled. But some megabyte rate chips such as BT expect fast response and
> data should be pushed immediately. In order to fix this issue, We suggest
> the use of t
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