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path: root/drivers/video/mx3fb.c
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2009-08-07i.MX31: fix framebuffer locking regressionsGuennadi Liakhovetski
Recent framebuffer locking patches first made affected systems unbootable, then the dead-lock has been fixed but as of 2.6.31-rc4 the framebuffer on mx3 machines doesn't work. Fix this. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-09mx3fb: fix regression with uninitalized fb_info->mm_lock mutexKrzysztof Helt
Remove call to the mx3fb_set_par() and the mx3fb_blank() before the register_framebuffer(). This fixes a problem with uninitialized the fb_info->mm_lock mutex introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap locking" Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-30fbdev: add mutex for fb_mmap lockingKrzysztof Helt
Add a mutex to avoid a circular locking problem between the mm layer semaphore and fbdev ioctl mutex through the fb_mmap() call. Also, add mutex to all places where smem_start and smem_len fields change so the mutex inside the fb_mmap() is actually used. Changing of these fields before calling the framebuffer_register() are not mutexed. This is 2.6.31 material. It removes one lockdep (fb_mmap() and register_framebuffer()) but there is still another one (fb_release() and register_framebuffer()). It also cleans up handling of the smem_start and smem_len fields used by mutexed section of the fb_mmap(). Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-05-17mx3fb: Issue prettier log messageSascha Hauer
Without this patch we end up with a log message like "mx3_sdc_fb mx3_sdc_fb: mx3fb: fb registered". That's two fb too much for my taste. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-05-13FB: fix unsafe use of disable_irq() in mx3fb.cGuennadi Liakhovetski
mx3fb.c calls disable_irq() from a DMA callback, i.e., in an IRQ-handler context, which has always been unsafe, and became deadly after the merge of threaded interrupt handler support. Use disable_irq_nosync() instead. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-05-05mx3fb: Fix compilation with CONFIG_PMSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-04-07fbdev: i.MX31: fix panning, error handling, clean upGuennadi Liakhovetski
1. check for errors returned from clk_get() 2. fix "Unbalanced enable for IRQ 160" 3. fix transmit descriptor handling in panning 4. clean frame buffer on blank - useful for OLED displays 5. formatting clean up Signed-off-by: Guennadi Liakhovetski <lg@denx.de> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-16Merge branch 'imx-fb-fix' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx into devel Conflicts: drivers/video/mx3fb.c
2009-03-13MX31 clkdev supportSascha Hauer
This patch adds clkdev support for i.MX31. This is done in a similar way done previously for i.MX27 Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-02-26i.MX31: framebuffer driverGuennadi Liakhovetski
This is a framebuffer driver for i.MX31 SoCs. It only supports synchronous displays, vertical panning supported, no overlay support. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-02-26Revert "i.MX31: framebuffer driver"Dan Williams
This reverts commit 86528da229a448577a8401a17c295883640d336c. This version of the patch was tab-to-space corrupted before application. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-01-21i.MX31: framebuffer driverGuennadi Liakhovetski
This is a framebuffer driver for i.MX31 SoCs. It only supports synchronous displays, vertical panning supported, no overlay support. Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Guennadi Liakhovetski <lg@denx.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>