Hi,
On 07/06/2010 02:48 PM, ext Ohad Ben-Cohen wrote:
On Tue, Jul 6, 2010 at 1:22 PM, Ohad Ben-Cohen<ohad@xxxxxxxxxx> wrote:
Note: the wl1271 device does support standard card detection, but
AFAIK there's a limitation to use that with the specific omap
controller the device is hardwired to. I will try to get more info
about that, but probably Madhu can comment on that better.
Some correction and additional info:
The wl1271 device has an issue which makes the standard card detect
mechanism irrelevant: it is always up, even if the power enable gpio
input of the device is down (the power enable input does not supply
the power to the chip, it's just logical digital high/low input upon
which the device reacts). That's why we must use software control for
emulating card detect with that device.
Just to clarify, is the wl1271 device always powered on the board?
And this GPIO power enable (OMAP_ZOOM_WLAN_PMENA_GPIO) is used to gate this
supply internally?
and what do these do ?
set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
regards,
-roger
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