If i915 opregion is present, the acpi_video driver doesn't register
itself immediately; it defers that until the i915 opregion code is done.
But if that *fails*, the acpi_video driver was never getting registered.
And thus I have no backlight support on my Lenovo IdeaPad S10-3.
Call acpi_video_register() on the failure path, and it works again.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Matthew Garrett <mjg@redhat.com>
When we find no ROM we understand and a device-tree is present, see
if we can retreive clock info from there.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This never really got fixed in mesa, and the kernel deals with the problem
just fine, so don't got reporting things that confuse people.
Signed-off-by: Dave Airlie <airlied@redhat.com>
0 is a valid DMA address from pci_map_page(), use pci_dma_mapping_error()
instead to check for errors
[airlied: fix warning + two other places with errors.]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This is a CS checker fix. I need this for FP16 alpha-test.
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
add default case for buffer formats
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: Andre Maasikas <amaasikas@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Currently most, if not all, memory allocation in drm_bufs.c is followed by initializing the memory with 0.
Replace the use of kmalloc+memset with kzalloc.
Signed-off-by: Davidlohr Bueso <dave@gnu.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Jesse's initial patch commit said:
"At panic time (i.e. when oops_in_progress is set) we should try a bit
harder to update the screen and make sure output gets to the VT, since
some drivers are capable of flipping back to it.
So make sure we try to unblank and update the display if called from a
panic context."
I've enhanced this to add a flag to the vc that console layer can set to
indicate they want this behaviour to occur. This also adds support to
fbcon for that flag and adds an fb flag for drivers to indicate they want
to use the support. It enables this for KMS drivers.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: James Simmons <jsimmons@infradead.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Expand the crtc_gamma_set function to accept a starting offset. The
reason for this is to eventually use this function for setcolreg from
drm_fb_helper.c. The fbdev colormap function can start at any offset in
the color map.
Signed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This brings us in line with the EDID spec recommendation for mode
priority sorting. We still don't extract all the modes we could from
VTB, but VTB is so rare in the wild that I'm not really concerned.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This is consistent with trying to access a filename that not exist
within a directory which is a good analogy here. The main reason for the
change is that it is easy to confuse the error code of EBADF as an
performing an ioctl on an invalid file descriptor (rather than an
unknown object).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Fixes lack of power saving with multiple heads on
some desktop cards.
Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=16474
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Change the interface to expect a PTR_ERR specifing the real error code
as opposed to assuming a NULL return => -EINVAL. Just once the user may
not be at fault!
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Smatch complained that the ERR_PTR from hwmon_device_register() wasn't
handled. I added some error handling in radeon_hwmon_init() to silence
the warning.
Unfortunately errors from radeon_pm_init() aren't handled so this
doesn't really make a difference beyond silencing the warning.
Also I changed DRM_ERROR() to dev_err() which is the new preferred
method.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
router objects are found on systems that use a mux to control
ddc line to connector routing or to control the actual clock and data
routing from the chip to the connectors. This patch implements ddc line
routing.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Handle asic specific table to hw mappings in
combios_setup_i2c_bus() directly. This allows us
to remove most of the combios quirks and clean up
the i2c bus setup.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Previously we added i2c buses as needed when enumerating connectors
power management, etc. This only exposed the actual buses used and
could have lead to the same buse getting created more than once if
one buses was used for more than one purpose. This patch sets up
all i2c buses on the card in one place and users of the buses just
point back to the one instance.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
- buffer offsets in the base regs are 256b aligned so
shift properly when comparing, fixed by Andre Maasikas
- mipmap size was calculated wrong when nlevel=0
- texture bo offsets were used after the bo base address was added
- vertex resource size register is size - 1, not size
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: Andre Maasikas <amaasikas@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(For some reason I thought that went in ages ago ...)
This fixes support for PCI domains in what should hopefully be a backward
compatible way along with a change to libdrm.
When the interface version is set to 1.4, we assume userspace understands
domains and the world is at peace. We thus pass proper domain numbers
instead of 0 to userspace.
The newer libdrm will then try 1.4 first, and fallback to 1.1, along with
ignoring domains in the later case (well, except on alpha of course)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This hasn't mattered up until the ioctl started using the value, and it fell
apart.
fixes fd.o 29340, Ubuntu LP 606081
[airlied: cleaned up whitespace and don't need an error before pushing]
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Commit 991ea75c (drm: use workqueue instead of slow-work), which made
drm to use wq instead of slow-work, didn't account for the return
value difference between delayed_slow_work_enqueue() and
queue_delayed_work(). The former returns 0 on success and -errno on
failures while the latter never fails and only uses the return value
to indicate whether the work was already pending or not.
This misconversion triggered spurious error messages. Remove the now
unnecessary return value check and error message.
Markus: caught another incorrect conversion in drm_kms_helper_poll_enable()
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Fixes a regression introduced by 58bbb63720c8997e0136fe1884101e7ca40d68fd
(fdo bug 29324).
Reported-by: Johannes Obermayr <johannesobermayr@gmx.de>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
We need a valid OR value because there're a few nv17 cards with DCB v1.4.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
There's some known configurations where the lack of these tables/scripts
is perfectly normal, reduce visibilty of complaint messages to debug.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
sil164 and friends are the most common, usually they just need to be
poked once because a fixed configuration is enough for any modes and
clocks, so they worked without this patch if the BIOS had done a good
job on POST. Display couldn't survive a suspend/resume cycle though.
Unfortunately, BIOS scripts are useless here.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Not very nice, but I don't think there's a simpler workaround.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Leaving the IRQ unack'ed while switching contexts makes the switch
fail randomly on some nv1x.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
David Woodhouse