This patch enables the I2C port to talk with the CRT. This allows adding
EDID reading and parsing capability for CRTs.
Just a small preparation, no notable changes in user experience yet.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: Joseph Chan <JosephChan@via.com.tw>
This patch moves two functions from .devexit to .text,
which are called on the probe error path.
Also a function which is called by probe is moved
from .text to .devinit.
WARNING: vmlinux.o(.devinit.text+0x2ca5): Section mismatch in reference
from the function via_pci_probe() to the function
devexit.text:via_teardown_subdevs()
The function __devinit via_pci_probe() references
a function __devexit via_teardown_subdevs().
This is often seen when error handling in the init function
uses functionality in the exit path.
The fix is often to remove the __devexit annotation of
via_teardown_subdevs() so it may be used outside an exit section.
WARNING: vmlinux.o(.devinit.text+0x2cb1): Section mismatch in reference
from the function via_pci_probe() to the function
devexit.text:via_pci_teardown_mmio()
The function __devinit via_pci_probe() references
a function __devexit via_pci_teardown_mmio().
This is often seen when error handling in the init function
uses functionality in the exit path.
The fix is often to remove the __devexit annotation of
via_pci_teardown_mmio() so it may be used outside an exit section.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
viafb: fix PCI table
This patch fixes an oddity in the device table where the P4M890 ID was
assigned with the enumeration value of CN700 which itself was missing.
This is a regression introduced by
"viafb: make viafb a first-class citizen using pci_driver"
While at it reorder the table to reflect the order of the enumeration
values.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Harald Welte <laforge@gnumonks.org>
These are the files which should be available to subdevices compiled
outside of drivers/video/via.
Cc: ScottFang@viatech.com.cn
Cc: JosephChan@via.com.tw
Cc: Harald Welte <laforge@gnumonks.org>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Properly localize error cleanup, and make sure that the iomem regions are
unmapped if framebuffer initialization fails.
Reported-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This code provides a minimal amount of access to the DMA engine as
needed by the camera driver. VX855 only; it's guaranteed not to work
on other chipsets, so it won't try.
Cc: ScottFang@viatech.com.cn
Cc: JosephChan@via.com.tw
Cc: Harald Welte <laforge@gnumonks.org>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The viafb device shares a single interrupt control register among several
distinct subunits. This adds a simple layer for management of that
register.
Cc: ScottFang@viatech.com.cn
Cc: JosephChan@via.com.tw
Cc: Harald Welte <laforge@gnumonks.org>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Another step toward making this thing a real multifunction device driver.
Cc: ScottFang@viatech.com.cn
Cc: JosephChan@via.com.tw
Cc: Harald Welte <laforge@gnumonks.org>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This is a simple gpiolib driver giving access to the GPIO lines in the
VIA framebuffer system. A simple mechanism exists for switching lines
between GPIO and I2C, but it's only compile-time for now.
Cc: ScottFang@viatech.com.cn
Cc: JosephChan@via.com.tw
Cc: Harald Welte <laforge@gnumonks.org>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This patch moves data of interest into a new viafb_dev structure which
describes the device as a whole; the idea here is to create a separation
between what all devices may need and what the framebuffer device in
particular needs.
I've also made some small steps toward thinning out the global.h mess.
Cc: ScottFang@viatech.com.cn
Cc: JosephChan@via.com.tw
Cc: Harald Welte <laforge@gnumonks.org>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The first step toward turning viafb into a multifunction driver. This
patch creates a new via-core.c file which serves as the main PCI driver;
everything else comes below that. Some work has been done to rationalize
the i2c drivers in this new scheme.
Cc: ScottFang@viatech.com.cn
Cc: JosephChan@via.com.tw
Cc: Harald Welte <laforge@gnumonks.org>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
