user/sven/linux.git/drivers/video/fbdev, branch leds/master

stifb: Implement hardware accelerated copyarea

2015-07-10T19:44:19Z

This patch adds hardware assisted scrolling. The code is based upon the following investigation: https://parisc.wiki.kernel.org/index.php/NGLE#Blitter A simple 'time ls -la /usr/bin' test shows 1.6x speed increase over soft copy and 2.3x increase over FBINFO_READS_FAST (prefer soft copy over screen redraw) on Artist framebuffer. Signed-off-by: Alex Ivanov Signed-off-by: Helge Deller

Merge tag 'fbdev-fixes-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

2015-07-03T19:11:17Z

Pull fbdev fix from Tomi Valkeinen: "Fix display regression on TI AM4xxx boards" * tag 'fbdev-fixes-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: OMAPDSS: fix probing if rfbi device is enabled

OMAPDSS: fix probing if rfbi device is enabled

2015-07-02T12:20:10Z

After the commit 736e60ddc215b85e73bbf7da26e1cde84cc9500f ("OMAPDSS: componentize omapdss") the dss core device will wait until all the subdevices have been successfully probed. However, we don't have a working driver for RFBI, so if RFBI device exists, omapdss will never get probed. All the .dtsi files set RFBI as disabled, except am4372.dtsi. This causes omapdss probe to not finish on AM4 devices. This patch makes omapdss driver skip adding rfbi device as a subcomponent, solving the issue. This should be reverted when we have a working RFBI driver. Signed-off-by: Tomi Valkeinen Reported-by: Felipe Balbi

Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2015-07-01T17:49:25Z

Pull module updates from Rusty Russell: "Main excitement here is Peter Zijlstra's lockless rbtree optimization to speed module address lookup. He found some abusers of the module lock doing that too. A little bit of parameter work here too; including Dan Streetman's breaking up the big param mutex so writing a parameter can load another module (yeah, really). Unfortunately that broke the usual suspects, !CONFIG_MODULES and !CONFIG_SYSFS, so those fixes were appended too" * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (26 commits) modules: only use mod->param_lock if CONFIG_MODULES param: fix module param locks when !CONFIG_SYSFS. rcu: merge fix for Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE() module: add per-module param_lock module: make perm const params: suppress unused variable error, warn once just in case code changes. modules: clarify CONFIG_MODULE_COMPRESS help, suggest 'N'. kernel/module.c: avoid ifdefs for sig_enforce declaration kernel/workqueue.c: remove ifdefs over wq_power_efficient kernel/params.c: export param_ops_bool_enable_only kernel/params.c: generalize bool_enable_only kernel/module.c: use generic module param operaters for sig_enforce kernel/params: constify struct kernel_param_ops uses sysfs: tightened sysfs permission checks module: Rework module_addr_{min,max} module: Use __module_address() for module_address_lookup() module: Make the mod_tree stuff conditional on PERF_EVENTS || TRACING module: Optimize __module_address() using a latched RB-tree rbtree: Implement generic latch_tree seqlock: Introduce raw_read_seqcount_latch() ...

Merge tag 'fbdev-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

2015-06-23T23:23:30Z

Pull fbdev updates from Tomi Valkeinen: - ssd1307fb: various fixes and improvements, SSD1305 support - use architecture agnostic functions instead of MTRR functions in various fbdev drivers - TI DRA7xx SoC display support (arch/arm/ side) - OMAPDSS componentization to fix probing order issues - OMAPDSS scaling fixes - msm_fb: remove obsoleted driver * tag 'fbdev-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (77 commits) msm: msm_fb: Remove dead code OMAPDSS: HDMI: wait for framedone when stopping video OMAPDSS: HDMI4: fix error handling OMAPDSS: DISPC: scaler debug print OMAPDSS: DISPC: do only y decimation on OMAP3 OMAPDSS: DISPC: check if scaling setup failed OMAPDSS: DISPC: fix 64 bit issue in 5-tap OMAPDSS: DISPC: fix row_inc for OMAP3 OMAPDSS: DISPC: add check for scaling limits OMAPDSS: DISPC: fix check_horiz_timing_omap3 args OMAPDSS: DISPC: fix predecimation for YUV modes OMAPDSS: DISPC: work-around for errata i631 OMAPDSS: simplify submodule reg/unreg code OMAPDSS: componentize omapdss OMAPDSS: reorder uninit calls OMAPDSS: remove uses of __init/__exit OMAPDSS: fix dss_init_ports error handling OMAPDSS: refactor dss probe function OMAPDSS: move 'dss_initialized' to dss driver fbdev: propagate result of fb_videomode_from_videomode() ...

module: add per-module param_lock

2015-06-23T05:57:38Z

Add a "param_lock" mutex to each module, and update params.c to use the correct built-in or module mutex while locking kernel params. Remove the kparam_block_sysfs_r/w() macros, replace them with direct calls to kernel_param_[un]lock(module). The kernel param code currently uses a single mutex to protect modification of any and all kernel params. While this generally works, there is one specific problem with it; a module callback function cannot safely load another module, i.e. with request_module() or even with indirect calls such as crypto_has_alg(). If the module to be loaded has any of its params configured (e.g. with a /etc/modprobe.d/* config file), then the attempt will result in a deadlock between the first module param callback waiting for modprobe, and modprobe trying to lock the single kernel param mutex to set the new module's param. This fixes that by using per-module mutexes, so that each individual module is protected against concurrent changes in its own kernel params, but is not blocked by changes to other module params. All built-in modules continue to use the built-in mutex, since they will always be loaded at runtime and references (e.g. request_module(), crypto_has_alg()) to them will never cause load-time param changing. This also simplifies the interface used by modules to block sysfs access to their params; while there are currently functions to block and unblock sysfs param access which are split up by read and write and expect a single kernel param to be passed, their actual operation is identical and applies to all params, not just the one passed to them; they simply lock and unlock the global param mutex. They are replaced with direct calls to kernel_param_[un]lock(THIS_MODULE), which locks THIS_MODULE's param_lock, or if the module is built-in, it locks the built-in mutex. Suggested-by: Rusty Russell Signed-off-by: Dan Streetman Signed-off-by: Rusty Russell

Merge omapdss scaling fixes

2015-06-22T11:56:01Z

msm: msm_fb: Remove dead code

2015-06-18T06:57:43Z

This code is no longer used now that mach-msm has been removed. Delete it. Cc: Jean-Christophe Plagniol-Villard Cc: Tomi Valkeinen Cc: David Brown Cc: Bryan Huntsman Cc: Daniel Walker Signed-off-by: Stephen Boyd Acked-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Tomi Valkeinen

OMAPDSS: HDMI: wait for framedone when stopping video

2015-06-17T12:53:40Z

At the moment when HDMI video output is stopped, we just clear the enable bit and return. While it's unclear if this can cause any issues, I think it's still better to wait for FRAMEDONE interrupt after clearing the enable bit so that we're sure the HDMI IP has finished. As we don't have any ready-made irq handling for HDMI, and this only needs to be done when disabling the HDMI output, this patch implements a simple loop with sleep, polling the FRAMEDONE bit. Signed-off-by: Tomi Valkeinen

OMAPDSS: HDMI4: fix error handling

2015-06-17T12:44:29Z

Error handling in hdmi_power_on_full() is not correct, and could leave resources unfreed. Fix this by arranging the error labels correctly. Signed-off-by: Tomi Valkeinen