This commit eliminate all uses of legacy integer base GPIO API in
olpc_dcon_xo_1_5.c and replace them with new descriptor GPIO API like
those in olpc_dcon_xo_1.c.
Also pull some common code with olpc_dcon_xo_1.c to olpc_dcon.h for code
sharing.
Signed-off-by: Jerry Lin <wahahab11@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This fixes a coding style issue where whitespace characters were missing
around some binary OR operators.
Signed-off-by: Kenneth Hsu <kennethhsu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This issue is caught by checkpatch.pl and is related to the following
warning:
- CHECK: Please don't use multiple blank lines
Signed-off-by: Emmanuil Chatzipetru <chatzi.emanuel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dcon_was_irq(); should return a boolean value if PMIO_Rx50[6] is either
set or unset, which is evaluated in the first return statement. Therefore,
the following return statement is redundant and thus, removed.
Signed-off-by: Emmanuil Chatzipetru <chatzi.emanuel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch replaces type u_int8_t with u8 as suggested by checkpatch.pl.
Signed-off-by: sayli karnik <karniksayli1995@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 82ef33af9d. It turns
out these machines are still out there, and the original patch broke
them. So revert it, adding back the driver, so people's machines still
work properly.
Reported-by: James Cameron <quozl@laptop.org>
Cc: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This code looks in the PCI config space for pin addresses and sets up some
stuff. However, Openfirmware has already done this for us, so there's no
need to ever do it in Linux. According to Mitch Bradley, this OFW has been
doing this for us since at least B3 builds (pre-mass production).
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change ->read_status() by separating the error handling and the
status bits. This also fixes a signedness bug in dcon_interrupt()
that would break the error handling.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Acked-by: Andres Salomon <dilinger@queued.net>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the whitespace and coding style issues in olpc_dcon metioned by
checkpatch.
Signed-off-by: Stefan Brähler <Stefan.Braehler@gmail.com>
Acked-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c: In function ‘dcon_wiggle_xo_1_5’:
drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c:155: error: implicit declaration of function ‘udelay’
drivers/built-in.o: In function `dcon_read_status_xo_1':
olpc_dcon_xo_1.c:(.text+0x13472e): undefined reference to `cs5535_gpio_set'
Signed-off-by: Sascha Silbe <sascha-pgp@silbe.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This moves dcon_source and dcon_pending into the dcon_priv struct.
Because these variables are used by the IRQ handler (which is
registered in the model-specific callbacks), we end up needing
to move dcon_priv into olpc_dcon.h. This also changes the IRQ
registration to use the dcon_priv pointer as dev_id, instead of
dcon_driver.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This adds CONFIG_FB_OLPC_DCON_1 and CONFIG_FB_OLPC_DCON_1_5 options for
allowing selection of XO-1 and/or XO-1.5 DCON support. In the process,
it also forces the xo_1.c and xo_1_5.c files to build as separate units,
correctly selects between XO-1 and XO-1.5 at runtime, and adds some
hacks to allow xo_1_5.c to build.
This isn't the cleanest patch, but it'll get better as more global
variables are dropped.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Drop the old geode_gpio crud, as well as the raw outl() calls; instead,
use the Linux GPIO API where possible, and the cs5535_gpio API in other
places.
Note that we don't actually clean up the driver properly yet (once loaded,
it always remains loaded). That'll come later..
This patch is necessary for building the driver.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This adds DCON support for the OLPC XO. The DCON is found in XO-1 and
XO-1.5 hardware. The XO-1 has a CS5536 southbridge, while the XO-1.5
has a Via chipset; the GPIO magic that's necessary to communicate with
the DCON chip is unfortunately different across both platforms. This
driver supports both.
This driver is in bad state atm, so I'm requesting its inclusion into
staging so it can be cleaned up while staying in the kernel tree.
Original driver by Dave Woodhouse, and modified extensively by
Jordan Crouse, myself, Deepak Saxena, Paul Fox, Daniel Drake, and
probably others that I've missed.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jerry Lin