Re: [PATCH v3 2/3] mmc: omap_hsmmc: Pin remux workaround to support SDIO interrupt on AM335x.

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On Thursday 21 November 2013 05:07 PM, Andreas Fenkart wrote:
2013/11/19 Tony Lindgren <tony@xxxxxxxxxxx>:
* Balaji T K <balajitk@xxxxxx> [131119 08:00]:
On Tuesday 19 November 2013 09:19 PM, Tony Lindgren wrote:
* Balaji T K <balajitk@xxxxxx> [131118 08:23]:

few params were passed via platform data in non-DT case and never cached
in internal data structure, with non-dt support going away soon, I am
planning to cleanup pdata usage in the driver when it gets to DT only support.

The issue of pdata tinkering needs to be fixed first as it will cause nasty
issues when the module is reprobed.

Agree that pdata usage needs to be fixed, but currently module
reprobe is working fine.

OK. The sdio_irq should be just set in struct omap_hsmmc_host instead.

agree, sdio_irq should be cached in struct omap_hsmmc_host


Note that it's still possible to pass platform data in the device tree case
as auxdata. And we probably need to do that for the pbias register handling
until we have a driver for that.

Talking of the pbias driver, any news on it?

Almost there, will post the patches soon.
Do you have a branch with updated board files, for me to base pbias patches on
else I can base the patches on rc1 too.

Great. How about make the pbias driver DT only? Let's not touch the board-*.c
files any longer as those will be going away for v3.14. We can probably keep
the old callback support in place also, and then remove it for v3.15.

Is there a dependency on the patches from Balaji or can the SDIO IRQ patches
go in already?

Hi Andreas,

I could get sdio interrupt working on AM335x, will do more testing and get back
to you.

Pbias shouldn't have create any dependency. Just add sdio_irq to
struct omap_hsmmc_host as suggested by Tony.

Thanks and Regards,
Balaji T K


And after that it would certainly make sense to rip out the platform data
fomr hsmmc driver just to get rid of the legacy support for multiplexing slots
that's not needed in this driver. That would allow replacing all mmc->slots[0]
accesses with something more standard.



rgds,
Andi

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