MMC standby issue for WiFI

VishnuSankar — Tue, 28 May 2013 09:34:31 GMT

my wifi peripheral is not active after the target device is going to standby.

I am using Taiyo Yuden GX8 wifi module. My target board is based on mx53 QSB.

I think the mmc1 device file which is connected to wifi is not going to standby mode. but the driver wants the peripheral to go

in standby.

I have a power down pin for the wifi which is connected to processor. I am powering down that pin when the target is going to standby.

does any one experienced this.

Re: MMC standby issue for WiFI

VishnuSankar — Thu, 30 May 2013 11:56:08 GMT

This is the log that I am getting when the wifi fails.

PM: resume of devices complete after 445.421 msecs

Restarting tasks ...

done.

dvfs: enable dvfs after resume

FW download with helper poll status timeout @ 0

wlan_dnld_fw fail ret=0xffffffff

Firmware Init Failed

woal_add_card failed

wlan_sdio: probe of mmc1:0001:1 failed with error -1

PM: Syncing filesystems ...

done.

dvfs: disable dvfs before suspend

Freezing user space processes ...

(elapsed 0.02 seconds) done.

Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.

Suspending console(s) (use no_console_suspend to debug)

_irq()]: * mmc1 got interrupt: 0x00000001

mxc_ipu mxc_ipu: Channel already disabled 10

mxc_ipu mxc_ipu: Channel already uninitialized 10

mmc1: new high speed SDIO card at address 0001

mmc mmc1:0001: parent mmc1 should not be sleeping

key -1 0 released

PM: resume of devices complete after 465.436 msecs

Restarting tasks ...

done.

dvfs: enable dvfs after resume

FW download with helper poll status timeout @ 0

wlan_dnld_fw fail ret=0xffffffff

Firmware Init Failed

woal_add_card failed

wlan_sdio: probe of mmc1:0001:1 failed with error -1

I think that particular mmc is not going to sleep.