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* video: da8xx-fb: fix section mismatch warningaxel lin2011-05-241-2/+2
| | | | | Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.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>
* console: rename acquire/release_console_sem() to console_lock/unlock()Torben Hohn2011-01-261-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | The -rt patches change the console_semaphore to console_mutex. As a result, a quite large chunk of the patches changes all acquire/release_console_sem() to acquire/release_console_mutex() This commit makes things use more neutral function names which dont make implications about the underlying lock. The only real change is the return value of console_trylock which is inverted from try_acquire_console_sem() This patch also paves the way to switching console_sem from a semaphore to a mutex. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: make console_trylock return 1 on success, per Geert] Signed-off-by: Torben Hohn <torbenh@gmx.de> Cc: Thomas Gleixner <tglx@tglx.de> Cc: Greg KH <gregkh@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* video: da8xx-fb: fix fb_probe error pathaxel lin2011-01-251-1/+2
| | | | | | | | Current implementation puts CONFIG_CPU_FREQ at wrong place, CONFIG_CPU_FREQ is for lcd_da8xx_cpufreq_deregister not for unregister_framebuffer. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* video: da8xx: Register IRQ as last thing in driver probing.Caglar Akyuz2010-12-011-8/+6
| | | | | | | | | | | | | | | | | | Following commit exposed a bug in driver: "fbdev: da8xx/omap-l1xx: implement double buffering" Bug is, if interrupt handler is called before initialization is finished, raster controller is enabled and following register modifications causes hardware to stay in a broken state. By looking at this one may say that proper locking is missing in this driver, and a more proper fix should be prepared. However, aformentioned commit causes a regression in the driver and some fix to current one should be applied first. Signed-off-by: Caglar Akyuz <caglar@bilkon-kontrol.com.tr> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* fbdev: da8xx/omap-l1xx: implement double bufferingMartin Ambrose2010-05-251-67/+234
| | | | | | | | | | | | | | | | | | | | | | | | This work includes the following: - Implement handler for FBIO_WAITFORVSYNC ioctl. - Allocate the data and palette buffers separately. A consequence of this is that the palette and data loading is now done in different phases. And that the LCD must be disabled temporarily after the palette is loaded but this will only happen once after init and each time the palette is changed. I think this is OK. - Allocate two (ping and pong) framebuffers from memory. - Add pan_display handler which toggles the LCDC DMA registers between the ping and pong buffers. Signed-off-by: Martin Ambrose <martin@ti.com> Cc: Chaithrika U S <chaithrika@ti.com> Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com> 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>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* davinci: fb: add framebuffer blank operationChaithrika U S2009-12-161-0/+30
| | | | | | | | | | Implement frame buffer blank operation feature for DA8xx/OMAP-L1xx driver. Signed-off-by: Chaithrika U S <chaithrika@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> 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>
* davinci: fb : add suspend/resume suuport for DA8xx/OMAP-L1xx fb driverChaithrika U S2009-12-161-2/+27
| | | | | | | | | | | | | | | Suspend/resume support DA8xx/OMAP-L1xx frame buffer driver. This feature has been tested on DA850/OMAP-L138 EVM. For the purpose of testing, the patch series[1] which adds suspend support for DA850/OMAP-L138 SoC was applied. [1] http://patchwork.kernel.org/patch/60260/ Signed-off-by: Chaithrika U S <chaithrika@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> 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>
* davinci: fb: update the driver in preparation for addition of power ↵Chaithrika U S2009-12-161-16/+27
| | | | | | | | | | | | | | | | management features Add a helper function to enable raster. Also add one member in the private data structure to track the current blank status, another function pointer which takes in the platform specific callback function to control panel power. These updates will help in adding suspend/resume and frame buffer blank operation features. Signed-off-by: Chaithrika U S <chaithrika@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* davinci: fb: add cpufreq supportChaithrika U S2009-12-161-0/+55
| | | | | | | | | | | Add cpufreq support for DA8xx/OMAP-L1xx frame buffer driver Signed-off-by: Chaithrika U S <chaithrika@ti.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* davinci: fb: calculate the clock divider from pixel clock infoChaithrika U S2009-12-161-8/+20
| | | | | | | | | | | | | The clock divider value can be calculated from the pixel clock value for the panel. This gives more flexiblity to the driver to change the divider value on the fly as in the case of cpufreq feature- support for which will be added shortly. Signed-off-by: Chaithrika U S <chaithrika@ti.com> Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Cc: Steve Chen <schen@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* davinci: fb: fix frame buffer driver issuesSudhakar Rajashekhara2009-12-021-4/+7
| | | | | | | | | | | | | | | | | | | | | | | Following issues have been addressed on DA8XX/OMAP-L1XX: a. Screen misalignment during booting when frame buffer console is enabled. b. Driver was configured always in PSEUDOCOLOR mode. This patch dynamically configures the driver either in PSEUDOCOLOUR or TRUECOLOR mode depending on bpp. c. The RED and BLUE offsets were interchanged resulting in wrong bootup logo colour. This patch has been tested on DA830/OMAP-L137 and DA850/OMAP-L138 EVMs. Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Cc: Steve Chen <schen@mvista.com> Cc: Pavel Kiryukhin <pkiryukhin@ru.mvista.com> Cc: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/video/da8xx-fb.c: fix error returnRoel Kluin2009-11-181-1/+1
| | | | | | | | | The return should be negative on errors Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* video: includecheck fix: da8xx-fb.cJaswinder Singh Rajput2009-10-081-1/+0
| | | | | | | | | | fix the following 'make includecheck' warning: drivers/video/da8xx-fb.c: linux/device.h is included more than once. Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* davinci-fb-frame-buffer-driver-for-ti-da8xx-omap-l1xx-v4Sudhakar Rajashekhara2009-09-231-40/+21
| | | | | | | | | | | | | Since the previous version, return values in ioctl() function have been modified. [akpm@linux-foundation.org: simplify lcd_disable_raster()] Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Signed-off-by: Pavel Kiryukhin <pkiryukhin@ru.mvista.com> Signed-off-by: Steve Chen <schen@mvista.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* davinci: fb: Frame Buffer driver for TI DA8xx/OMAP-L1xxSudhakar Rajashekhara2009-09-231-0/+909
Add LCD controller (LCDC) driver for TI's DA8xx/OMAP-L1xx architecture. LCDC specifications can be found at http://www.ti.com/litv/pdf/sprufm0a. LCDC on DA8xx consists of two independent controllers, the Raster Controller and the LCD Interface Display Driver (LIDD) controller. LIDD further supports character and graphic displays. This patch adds support for the graphic display (Sharp LQ035Q3DG01) found on the DA830 based EVM. The EVM details can be found at: http://support.spectrumdigital.com/boards/dskda830/revc/. Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Signed-off-by: Pavel Kiryukhin <pkiryukhin@ru.mvista.com> Signed-off-by: Steve Chen <schen@mvista.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> DESC davinci-fb-frame-buffer-driver-for-ti-da8xx-omap-l1xx-fix EDESC From: Andrew Morton <akpm@linux-foundation.org> fix kconfig indenting Cc: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Pavel Kiryukhin <pkiryukhin@ru.mvista.com> Cc: Steve Chen <schen@mvista.com> Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>