Add required suspend/resume support to prevent the SDIO
core from removing our card completely during system suspend.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Tested-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Enable runtime PM for the wl1271 SDIO device.
We request power whenever the WLAN interface is brought up,
and release it after the WLAN interface is taken down.
As a result, power is released immediately after probe returns,
since at that point power has not been explicitly requested yet
(i.e. the WLAN interface is still down).
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Tested-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
The current order causes driver releasing to fail in various ways, and causes
possible instability.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
The wl1271 device is using a reference clock that may change
between board to board.
Make the ref_clock parameter configurable by board settings
instead of having a hard coded value in the sources.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Remove the hard coded irq information, and instead take
the irq information from the board's platform data.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Make it possible for the set power method to indicate a
success/failure return value. This is needed to support
more complex power on/off operations such as SDIO
power manipulations.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
These were introduced in "wl1271: sdio: claim host only when doing IO"
drivers/net/wireless/wl12xx/wl1271_sdio.c: In function ‘wl1271_sdio_set_power’:
drivers/net/wireless/wl12xx/wl1271_sdio.c:193: warning: ‘return’ with a value, in function returning void
drivers/net/wireless/wl12xx/wl1271_sdio.c:195: warning: ‘return’ with a value, in function returning void
drivers/net/wireless/wl12xx/wl1271_sdio.c:186: warning: unused variable ‘func’
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Do not maintain a persistent sdio_claim_host state. Instead,
claim host before doing IO and release host soon after.
This fixes several mmc deadlock scenarios, e.g. during
suspend/resume.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Make it possible to use wl1271's SDIO interface on non-ARM platforms.
Fully tested on a x86 platform, compile-tested on ARM.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Our SPI driver is called "wl1271_spi" in the driver information structure.
Let's use the same for SDIO so that things are aligned.
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
There were wrong format specifiers in wl1271_sdio.c in some debug
outputs. This has been causing warnings on some platforms.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Changed platform_device to be allocated dynamically from the
wl1271_alloc_hw function. Also cleaned up error handling in the
wl1271_alloc_hw function and module probe functions.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Removed duplicate code from wl1271_sdio module remove function. For
freeing stuff in the remove function wl1271_free_hw function is now
used.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Added separate flag for SDIO debugging. Previously it has used
DEBUG_SPI flag. This patch also includes couple indentation fixes.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Changed driver to keep MMC host claimed while wlan interface is up.
This keeps MMC stack from powering the SDIO device down.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Added method for wlan power control to io_ops struct and moved
wl1271_power_on and wl1271_power_off functions to wl1271_io.h.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch implements looped IRQ handling. In essence, if a new interrupt is
asserted by the FW while the host is processing the previous one, the host
will directly proceed processing the new IRQ without leaving the handling
function.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Fixed two bugs causing problems when unloding wl1271 module. First was
missing sdio_set_drvdata call from the probe function, second was order
of function calls in the remove function.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Added initial implementation of SDIO interfacte to the wl1271 driver.
When selected, this adds new module called "wl1271_sdio".
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
