Commit graph

8 commits

Author SHA1 Message Date
Ido Yariv
341b7cde6c wl12xx: Handle platforms without level trigger interrupts
Some platforms are incapable of triggering on level interrupts. Add a
platform quirks member in the platform data structure, as well as an
edge interrupt quirk which can be set on such platforms.

When the interrupt is requested with IRQF_TRIGGER_RISING, IRQF_ONESHOT
cannot be used, as we might miss interrupts that occur after the FW
status is cleared and before the threaded interrupt handler exits.

Moreover, when IRQF_ONESHOT is not set, iterating more than once in the
threaded interrupt handler introduces a few race conditions between this
handler and the hardirq handler. Currently this is worked around by
limiting the loop to one iteration only. This workaround has an impact
on performance. To remove to this restriction, the race conditions will
need to be addressed.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-04-19 16:49:20 +03:00
Ido Yariv
d29633b40e wl12xx: Clean up and fix the 128x boot sequence
Clean up the boot sequence code & fix the following issues:
1. Always read the registers' values and set the relevant bits instead of
   zeroing all other bits
2. Handle cases where wl1271_top_reg_read returns an error
3. Verify that the HW can detect the selected clock source
4. Remove 128x PG10 initialization code
5. Configure the MCS PLL to work in HP mode

Signed-off-by: Ido Yariv <ido@wizery.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-04-19 16:49:17 +03:00
Luciano Coelho
62c7d085e1 wl12xx: add new board_tcxo_clock element to the platform data
This new value is a new type of clock setting that is used by wl128x
chipsets.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-04-19 16:19:44 +03:00
Gery Kahn
c8aea565e8 wl1271: ref_clock cosmetic changes
Cosmetic cleanup for ref_clock code while configured by board.

Signed-off-by: Gery Kahn <geryk@ti.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-11-15 13:25:02 -05:00
Ohad Ben-Cohen
65836112fc wl12xx: fix non-wl12xx build scenarios
Support building wl1271-equipped boards without building the
wl1271 driver itself, e.g.:

CONFIG_MACH_OMAP_ZOOM3=y
CONFIG_WL12XX is not set

Reported-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-30 06:01:56 +03:00
Ohad Ben-Cohen
15cea99306 wl1271: make ref_clock configurable by board
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>
2010-09-21 11:05:00 -04:00
Ohad Ben-Cohen
61ee7007a5 wl12xx: add platform data passing support
Add a simple mechanism to pass platform data to the
SDIO instances of wl12xx.

This way there is no confusion over who owns the 'embedded data',
typechecking is preserved, and no possibility for the wrong driver to
pick up the data.

Originally proposed by Russell King.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21 11:04:57 -04:00
Ohad Ben-Cohen
c1f9a09560 wl12xx: make wl12xx.h common to both spi and sdio
Move wl12xx.h outside of the spi-specific location,
so it can be shared with both spi and sdio solutions.

Update all users of spi/wl12xx.h accordingly

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21 11:04:38 -04:00
Renamed from include/linux/spi/wl12xx.h (Browse further)