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* video: udlfb: Use NULL instead of 0Sachin Kamat2013-09-261-1/+1
| | | | | | | | new_back is a pointer. Use NULL instead of 0. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Bernie Thompson <bernie@plugable.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* video: udlfb: Make local symbol staticSachin Kamat2013-06-261-1/+1
| | | | | | | 'dlfb_handle_damage' is used only in this file. Make it static. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* video: udlfb: Use NULL instead of 0Sachin Kamat2013-06-261-5/+5
| | | | | | | Pointer variables should be initialized with NULL instead of 0. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* fbdev: improve fb_mmap bounds checksTomi Valkeinen2013-04-261-1/+5
| | | | | | | | | Improve fb_mmap bounds checks in gbefb, smscufx, udlfb and vfb drivers to prevent possible uint overflows. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Steve Glendinning <steve.glendinning@smsc.com> Cc: Bernie Thompson <bernie@plugable.com>
* Merge tag 'fbdev-updates-for-3.7' of git://github.com/schandinat/linux-2.6Linus Torvalds2012-10-121-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull fbdev updates from Florian Tobias Schandinat: "This includes: - large updates for OMAP - basic OMAP5 DSS support for DPI and DSI outputs - large cleanups and restructuring - some update to Exynos and da8xx-fb - removal of the pnx4008 driver (arch removed) - various other small patches" Fix up some trivial conflicts (mostly just include line changes, but also some due to the renaming of the deferred work functions by Tejun). * tag 'fbdev-updates-for-3.7' of git://github.com/schandinat/linux-2.6: (193 commits) gbefb: fix compile error video: mark nuc900fb_map_video_memory as __devinit video/mx3fb: set .owner to prevent module unloading while being used video: exynos_dp: use clk_prepare_enable and clk_disable_unprepare drivers/video/exynos/exynos_mipi_dsi.c: fix error return code drivers/video/savage/savagefb_driver.c: fix error return code video: s3c-fb: use clk_prepare_enable and clk_disable_unprepare da8xx-fb: save and restore LCDC context across suspend/resume cycle da8xx-fb: add pm_runtime support video/udlfb: fix line counting in fb_write OMAPDSS: add missing include for string.h OMAPDSS: DISPC: Configure color conversion coefficients for writeback OMAPDSS: DISPC: Add manager like functions for writeback OMAPDSS: DISPC: Configure writeback FIFOs OMAPDSS: DISPC: Configure writeback specific parameters in dispc_wb_setup() OMAPDSS: DISPC: Configure overlay-like parameters in dispc_wb_setup OMAPDSS: DISPC: Add function to set channel in for writeback OMAPDSS: DISPC: Don't set chroma resampling bit for writeback OMAPDSS: DISPC: Downscale chroma if plane is writeback OMAPDSS: DISPC: Configure input and output sizes for writeback ...
| * video/udlfb: fix line counting in fb_writeAlexander Holler2012-10-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | Line 0 and 1 were both written to line 0 (on the display) and all subsequent lines had an offset of -1. The result was that the last line on the display was never overwritten by writes to /dev/fbN. Cc: stable@vger.kernel.org Signed-off-by: Alexander Holler <holler@ahsoftware.de> Acked-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
* | mm: kill vma flag VM_RESERVED and mm->reserved_vm counterKonstantin Khlebnikov2012-10-091-1/+0
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A long time ago, in v2.4, VM_RESERVED kept swapout process off VMA, currently it lost original meaning but still has some effects: | effect | alternative flags -+------------------------+--------------------------------------------- 1| account as reserved_vm | VM_IO 2| skip in core dump | VM_IO, VM_DONTDUMP 3| do not merge or expand | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP 4| do not mlock | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP This patch removes reserved_vm counter from mm_struct. Seems like nobody cares about it, it does not exported into userspace directly, it only reduces total_vm showed in proc. Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP. remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP. remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP. [akpm@linux-foundation.org: drivers/vfio/pci/vfio_pci.c fixup] Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Carsten Otte <cotte@de.ibm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Eric Paris <eparis@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Morris <james.l.morris@oracle.com> Cc: Jason Baron <jbaron@redhat.com> Cc: Kentaro Takeda <takedakn@nttdata.co.jp> Cc: Matt Helsley <matthltc@us.ibm.com> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Venkatesh Pallipadi <venki@google.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'fbdev-updates-for-3.5' of git://github.com/schandinat/linux-2.6Linus Torvalds2012-06-011-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull fbdev updates from Florian Tobias Schandinat: - driver for AUO-K1900 and AUO-K1901 epaper controller - large updates for OMAP (e.g. decouple HDMI audio and video) - some updates for Exynos and SH Mobile - various other small fixes and cleanups * tag 'fbdev-updates-for-3.5' of git://github.com/schandinat/linux-2.6: (130 commits) video: bfin_adv7393fb: Fix cleanup code video: exynos_dp: reduce delay time when configuring video setting video: exynos_dp: move sw reset prioir to enabling sw defined function video: exynos_dp: use devm_ functions fb: handle NULL pointers in framebuffer release OMAPDSS: HDMI: OMAP4: Update IRQ flags for the HPD IRQ request OMAPDSS: Apply VENC timings even if panel is disabled OMAPDSS: VENC/DISPC: Delay dividing Y resolution for managers connected to VENC OMAPDSS: DISPC: Support rotation through TILER OMAPDSS: VRFB: remove compiler warnings when CONFIG_BUG=n OMAPFB: remove compiler warnings when CONFIG_BUG=n OMAPDSS: remove compiler warnings when CONFIG_BUG=n OMAPDSS: DISPC: fix usage of dispc_ovl_set_accu_uv OMAPDSS: use DSI_FIFO_BUG workaround only for manual update displays OMAPDSS: DSI: Support command mode interleaving during video mode blanking periods OMAPDSS: DISPC: Update Accumulator configuration for chroma plane drivers/video: fsl-diu-fb: don't initialize the THRESHOLDS registers video: exynos mipi dsi: support reverse panel type video: exynos mipi dsi: Properly interpret the interrupt source flags video: exynos mipi dsi: Avoid races in probe() ...
| * fb_defio: add first_io callbackHeiko Stübner2012-04-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this optional callback the driver is notified when the first page is entered into the pagelist and a new deferred_io call is scheduled. A possible use-case for this is runtime-pm. In the first_io call pm_runtime_get() could be called, which starts an asynchronous runtime_resume of the device. In the deferred_io callback a call to pm_runtime_barrier() makes the sure, the device is resumed by then and a pm_runtime_put() may put the device back to sleep. Also, some SoCs may use the runtime-pm system to determine if they are able to enter deeper idle states. Therefore it is necessary to keep the use-count from the first written page until the conclusion of the screen update, to prevent the system from going to sleep before completing the pending update. Two users of defio were using kmalloc to allocate the structure. These allocations are changed to kzalloc, to prevent uninitialised .first_io members in those drivers. Signed-off-by: Heiko Stübner <heiko@sntech.de> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
* | USB: udlfb.c: remove err() usageGreg Kroah-Hartman2012-04-251-1/+1
|/ | | | | | | | | | err() was a very old USB-specific macro that I thought had gone away. This patch removes it from being used in the driver and uses dev_err() instead. CC: Bernie Thompson <bernie@plugable.com> CC: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'fbdev-updates-for-3.4' of git://github.com/schandinat/linux-2.6Linus Torvalds2012-03-221-76/+102
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull fbdev updates for 3.4 from Florian Tobias Schandinat: - drivers for Samsung Exynos MIPI DSI and display port - i740fb to support those old Intel chips - large updates to OMAP, viafb and sh_mobile_lcdcfb - some updates to s3c-fb and udlfb, few patches to others Fix up conflicts in drivers/video/udlfb.c due to Key Sievers' fix making it in twice. * tag 'fbdev-updates-for-3.4' of git://github.com/schandinat/linux-2.6: (156 commits) Revert "video:uvesafb: Fix oops that uvesafb try to execute NX-protected page" OMAPDSS: register dss drivers in module init video: pxafb: add clk_prepare/clk_unprepare calls fbdev: bfin_adv7393fb: Drop needless include fbdev: sh_mipi_dsi: add extra phyctrl for sh_mipi_dsi_info fbdev: remove dependency of FB_SH_MOBILE_MERAM from FB_SH_MOBILE_LCDC Revert "MAINTAINERS: add entry for exynos mipi display drivers" fbdev: da8xx: add support for SP10Q010 display fbdev: da8xx:: fix reporting of the display timing info drivers/video/pvr2fb.c: ensure arguments to request_irq and free_irq are compatible OMAPDSS: APPLY: fix clearing shadow dirty flag with manual update fbdev: sh_mobile_meram: Implement system suspend/resume fbdev: sh_mobile_meram: Remove unneeded sanity checks fbdev: sh_mobile_meram: Don't perform update in register operation arm: mach-shmobile: Constify sh_mobile_meram_cfg structures fbdev: sh_mobile_lcdc: Don't store copy of platform data fbdev: sh_mobile_meram: Remove unused sh_mobile_meram_icb_cfg fields arm: mach-shmobile: Don't set MERAM ICB numbers in platform data fbdev: sh_mobile_meram: Allocate ICBs automatically fbdev: sh_mobile_meram: Use genalloc to manage MERAM allocation ...
| * udlfb: Fix invalid return codes in edid sysfs entry store functionOlivier Sobrie2012-03-081-8/+11
| | | | | | | | | | | | | | | | | | | | Return a negative errno instead of zero in the write function of the sysfs entry in case of error. Also add a check on the return value of dlfb_setup_modes(). Signed-off-by: Olivier Sobrie <olivier@sobrie.be> Acked-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * udlfb: Add module_param to allow forcing pixel_limitBen Collins2012-03-031-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some user scenarios need to prioritize performance over maxiumum resolution. Also, some devices may have bad vendor descriptors, and this allows the user to set a pixel limit that matches their specific device to avoid blank screens on higher resolution monitors. 700000 minimum for DL-115, 2360000 maximum for DL-195 Signed-off-by: Ben Collins <bcollins@ubuntu.com> Signed-off-by: Bernie Thompson <bernie@plugable.com>
| * udlfb: Make sure to get correct endian keys from vendor descriptorBen Collins2012-03-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | The driver was not using le16_to_cpu when reading keys from the vendor descriptor, causing incorrect parsing. Mainly, sku_pixel_limit was not being parsed on big-endian systems. This would result in a blank screen on big-endian CPUs where the DL chips's max mode was smaller than the monitor's native mode. Signed-off-by: Ben Collins <bcollins@ubuntu.com> Signed-off-by: Bernie Thompson <bernie@plugable.com>
| * udlfb: fix hcd_buffer_free panic on unplug/replugBernie Thompson2012-03-011-66/+80
| | | | | | | | | | | | | | | | | | | | | | Fix race conditions with unplug/replug behavior, in particular take care not to hold up USB probe/disconnect for long-running framebuffer operations and rely on usb to handle teardown. Fix for kernel panic reported with new F17 multiseat support. Reported-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Bernie Thompson <bernie@plugable.com>
| * udlfb: Improve debugging printouts with refresh rateMartin Decky2012-03-011-1/+2
| | | | | | | | | | | | | | It is not very helpful to print a list of the same resolutions without the refresh rate. Signed-off-by: Bernie Thompson <bernie@plugable.com>
| * udlfb: remove sysfs framebuffer device with USB .disconnect()Kay Sievers2012-01-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The USB graphics card driver delays the unregistering of the framebuffer device to a workqueue, which breaks the userspace visible remove uevent sequence. Recent userspace tools started to support USB graphics card hotplug out-of-the-box and rely on proper events sent by the kernel. The framebuffer device is a direct child of the USB interface which is removed immediately after the USB .disconnect() callback. But the fb device in /sys stays around until its final cleanup, at a time where all the parent devices have been removed already. To work around that, we remove the sysfs fb device directly in the USB .disconnect() callback and leave only the cleanup of the internal fb data to the delayed work. Before: add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb) add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0 (usb) add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/graphics/fb0 (graphics) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0 (usb) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb) remove /2-1.2:1.0/graphics/fb0 (graphics) After: add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb) add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0 (usb) add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/graphics/fb1 (graphics) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/graphics/fb1 (graphics) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0 (usb) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb) Cc: stable@vger.kernel.org Tested-by: Bernie Thompson <bernie@plugable.com> Acked-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
* | udlfb: remove sysfs framebuffer device with USB .disconnect()Kay Sievers2012-03-151-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The USB graphics card driver delays the unregistering of the framebuffer device to a workqueue, which breaks the userspace visible remove uevent sequence. Recent userspace tools started to support USB graphics card hotplug out-of-the-box and rely on proper events sent by the kernel. The framebuffer device is a direct child of the USB interface which is removed immediately after the USB .disconnect() callback. But the fb device in /sys stays around until its final cleanup, at a time where all the parent devices have been removed already. To work around that, we remove the sysfs fb device directly in the USB .disconnect() callback and leave only the cleanup of the internal fb data to the delayed work. Before: add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb) add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0 (usb) add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/graphics/fb0 (graphics) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0 (usb) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb) remove /2-1.2:1.0/graphics/fb0 (graphics) After: add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb) add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0 (usb) add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/graphics/fb1 (graphics) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/graphics/fb1 (graphics) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0 (usb) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb) Cc: stable@vger.kernel.org Tested-by: Bernie Thompson <bernie@plugable.com> Acked-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
* module_param: make bool parameters really bool (drivers & misc)Rusty Russell2012-01-131-3/+3
| | | | | | | | | | | | module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* USB: convert some miscellanies drivers to use module_usb_driver()Greg Kroah-Hartman2011-11-181-18/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This converts the remaining USB drivers in the kernel to use the module_usb_driver() macro which makes the code smaller and a bit simpler. Added bonus is that it removes some unneeded kernel log messages about drivers loading and/or unloading. Cc: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Till Harbaum <till@harbaum.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Chris Ball <cjb@laptop.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org> Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Steve Glendinning <steve.glendinning@smsc.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Cc: Jamie Iles <jamie@jamieiles.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge branch 'master' of ↵Florian Tobias Schandinat2011-08-291-6/+15
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-3.x into fbdev-next Conflicts: drivers/video/atmel_lcdfb.c
| * drivers/video/udlfb match class, subclass, and protocolBernie Thompson2011-07-131-5/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Match udlfb only against vendor-specific class (e.g. only DisplayLink graphics, not composite standard audio class interfaces). This enables compatibility with composite graphics+audio devices (e.g. HDMI). Match udlfb only against compatible subclass 0 and protocol 0 chips. DisplayLink's USB 3.0 generation chips increment these values to signal that they have a incompatible protocol, preventing udlfb from erroneously matching to hardware it does not support. Tested to confirm proper behavior on both USB 2.0 and USB 3.0 generation devices. Reported-by: Andrew Kephart <akephart@akephart.org> Signed-off-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * drivers/video/udlfb bind framebuffer to interface.Kay Sievers2011-07-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | Udlfb has been binding the framebuffer device to its parent, which isn't correct and causes confusion with operations like udev remove. Coming plug and play multiseat support is dependent on this fix. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | udlfb: Enable fbcon access to framebuffer by defaultBernie Thompson2011-08-241-2/+2
| | | | | | | | | | Signed-off-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
* | udlfb: Enable fb_defio by defaultBernie Thompson2011-08-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enables page fault based detection of mmap writes to the framebuffer, which allows standard fbdev apps (like the generic fbdev xorg driver) to work on DisplayLink devices. Not all bugs are shaken out of the fb_defio path of udlfb, but it's tantalizingly close, so this seems a good time to enable by default. Alternatively, option can be disabled when running with an xorg driver that can more directly communicate damaged regions of the framebuffer via IOCTL. This is a simpler, higher perf option, when available. Signed-off-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
* | udlfb: Add module option to do without shadow framebufferStuart Hopkins2011-08-241-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By default, udlfb allocates a 2nd buffer to shadow what's across the bus on the USB device. It can operate without this shadow, but then it cannot tell which pixels have changed, and must send all. Saves host memory, but worsens the USB 2.0 bus bottleneck. This option allows users in very low memory situations (e.g. bifferboard) to optionally turn off this shadow framebuffer. Signed-off-by: Stuart Hopkins <stuart@linux-depot.com> Signed-off-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
* | udlfb: fix issues found with Sparse static analysisDr. David Alan Gilbert2011-08-241-14/+16
| | | | | | | | | | | | | | | | Add __user casting, a missing copy_from_user, and proper boolean Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
* | udlfb: Search config descriptor if not at device levelAndrew Kephart2011-08-241-5/+16
| | | | | | | | | | | | | | | | | | | | | | For at least one DisplayLink device, the vendor-specific information can be found in the config descriptor instead of as a separate, device-level descriptor. This patch searches the current interface (of the current config descriptor) for the DL vendor-specific descriptor. Signed-off-by: Andrew Kephart <akephart@akephart.org> Signed-off-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
* | udlfb: add more comprehensive support for DPMS FB_BLANK_* modesBernie Thompson2011-08-241-24/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | Fixes earlier problems where monitor would not return from blank Test with any DisplayLink-based USB 2.0 graphics adapter sudo nano /sys/class/graphics/fb?/blank and write out single digit FB_BLANK_* code from include/linux/fb.h Supports on (0), blank (1), suspend (2,3), powerdown (4) Signed-off-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
* | Merge branch 'master' into for-nextJiri Kosina2011-07-111-2/+6
|\| | | | | | | | | Sync with Linus' tree to be able to apply pending patches that are based on newer code already present upstream.
| * udlfb: Correct sub-optimal resolution selection.William Katsak2011-06-241-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The situation in which the problem occurred was with a Plugable UGA-2K-A connected to a Samsung EX2220X display. The driver indicates that 1920x1080 is a valid mode (the first mode available, in fact), but proceeds to set the framebuffer size to 1600x1200. The patch corrects what seems to be a logic error, regarding unsetting the FB_MISC_1ST_DETAIL flag, if the first (top/best) mode is invalid. The existing code unset the flag if ANY mode was invalid. Signed-off-by: William Katsak <william.katsak@alcatel-lucent.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | treewide: remove duplicate includesVitaliy Ivanov2011-06-201-1/+0
|/ | | | | | | | Many stupid corrections of duplicated includes based on the output of scripts/checkincludes.pl. Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* udlfb: include prefetch.h explicitlyStephen Rothwell2011-05-241-0/+1
| | | | | | | | | | | | | | Commit e66eed651fd1 ("list: remove prefetching from regular list iterators") removed the include of prefetch.h from list.h, so we need to include it explicitly, now. fixes this build error on powerpc: drivers/video/udlfb.c: In function 'dlfb_compress_hline': drivers/video/udlfb.c:421: error: implicit declaration of function 'prefetch_range' Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* video, udlfb: Fix two build warnings about 'ignoring return value'Liu Yuan2011-05-241-3/+16
| | | | | | | | | | | | | | build warning: ... drivers/video/udlfb.c:1590: warning: ignoring return value of ‘device_create_file’, declared with attribute warn_unused_result drivers/video/udlfb.c:1592: warning: ignoring return value of ‘device_create_bin_file’, declared with attribute warn_unused_result ... So add two checks to get rid of 'em. Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sanitize <linux/prefetch.h> usageLinus Torvalds2011-05-201-0/+1
| | | | | | | | | | | | | | | | | | | | | Commit e66eed651fd1 ("list: remove prefetching from regular list iterators") removed the include of prefetch.h from list.h, which uncovered several cases that had apparently relied on that rather obscure header file dependency. So this fixes things up a bit, using grep -L linux/prefetch.h $(git grep -l '[^a-z_]prefetchw*(' -- '*.[ch]') grep -L 'prefetchw*(' $(git grep -l 'linux/prefetch.h' -- '*.[ch]') to guide us in finding files that either need <linux/prefetch.h> inclusion, or have it despite not needing it. There are more of them around (mostly network drivers), but this gets many core ones. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Fix common misspellingsLucas De Marchi2011-03-311-1/+1
| | | | | | Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
* Merge branch 'staging-next' of ↵Linus Torvalds2011-01-101-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6 * 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (510 commits) staging: speakup: fix failure handling staging: usbip: remove double giveback of URB Staging: batman-adv: Remove batman-adv from staging Staging: hv: Use only one txf buffer per channel and kmalloc/GFP_KERNEL on initialize staging: hv: remove unneeded osd_schedule_callback staging: hv: convert channel_mgmt.c to not call osd_schedule_callback staging: hv: convert vmbus_on_msg_dpc to not call osd_schedule_callback staging: brcm80211: Fix WL_<type> logging macros Staging: IIO: DDS: AD9833 / AD9834 driver Staging: IIO: dds.h convenience macros Staging: IIO: Direct digital synthesis abi documentation staging: brcm80211: Convert ETHER_TYPE_802_1X to ETH_P_PAE staging: brcm80211: Remove unused ETHER_TYPE_<foo> #defines staging: brcm80211: Remove ETHER_HDR_LEN, use ETH_HLEN staging: brcm80211: Convert ETHER_ADDR_LEN to ETH_ALEN staging: brcm80211: Convert ETHER_IS<FOO> to is_<foo>_ether_addr staging: brcm80211: Remove unused ether_<foo> #defines and struct staging: brcm80211: Convert ETHER_IS_MULTI to is_multicast_ether_addr staging: brcm80211: Remove unused #defines ETHER_<foo>_LOCALADDR Staging: comedi: Fix checkpatch.pl issues in file s526.c ... Fix up trivial conflict in drivers/video/udlfb.c
* Merge branch 'fbdev/udlfb'Paul Mundt2011-01-061-1/+1
|
* video: udlfb: Kill off special printk wrappers, use pr_fmt().Paul Mundt2011-01-061-37/+39
| | | | | | | This kills off all of the dl_xxx() printk wrappers and simply stubs in a pr_fmt() definition to accomplish the same thing. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* video: udlfb: Kill off some magic constants for EDID sizing.Paul Mundt2011-01-061-8/+7
| | | | | | The edid length is fixed, so use the standard definition consistently. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* video: udlfb: deifdefify (yes, that's a word).Paul Mundt2011-01-061-39/+2
| | | | | | | udlfb selects all of the options it presently ifdef conditionalizes, so none of the statements have any effect outside of aggravating eye strain. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* fbdev: move udlfb out of staging.Paul Mundt2010-11-161-0/+1915
udlfb has undergone a fair bit of cleanup recently and is effectively at the point where it can be liberated from staging purgatory and promoted to a real driver. The outstanding cleanups are all minor, with some of them dependent on drivers/video headers, so these will be done incrementally from udlfb's new home. Requested-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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