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path: root/drivers/video/pxafb.c
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* pxafb: only initialize the smart panel thread when dealing with a smartpanelEric Miao2008-11-11
| | | | | Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Eric Miao <eric.miao@marvell.com>
* pxafb: introduce LCD_TYPE_MASK and use it.Eric Miao2008-11-11
| | | | | Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Eric Miao <eric.miao@marvell.com>
* [ARM] pxafb: fix the warning of incorrect lccr when lcd_conn is specifiedEric Miao2008-08-16
| | | | | | | | | | | The newly introduced "lcd_conn" field for connected LCD panel type will cause the original code to generate the warnings of incorrect lccr*. This is unnecessary since well encoded LCD_* flags will not generate incorrect combinition of lccr* bits. Skip the check if "lcd_conn" is specified. Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] pxafb: add flag to specify output format on LDD pins when base is RGBT16Eric Miao2008-08-16
| | | | | | | | Another fix of inconsistent shift of the LCD_BIAS_ACTIVE_* and LCD_PCLK_EDGE_* is also included. Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] pxafb: fix the incorrect configuration of GPIO77 as ACBIAS for TFT LCDEric Miao2008-08-16
| | | | | | | Signed-off-by: Eric Miao <eric.miao@marvell.com> Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Tested-by: Alex Osborne <ato@meshy.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King2008-08-07
| | | | | | This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Remove asm/hardware.h, use asm/arch/hardware.h insteadRussell King2008-08-07
| | | | | | | | | Remove includes of asm/hardware.h in addition to asm/arch/hardware.h. Then, since asm/hardware.h only exists to include asm/arch/hardware.h, update everything to directly include asm/arch/hardware.h and remove asm/hardware.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] PXA: squash warning in pxafbIan Molton2008-07-26
| | | | | | Fixes a warning about using the wrong type in pxafb.c Signed-off-by: Ian Molton <spyro@f2s.com>
* pxafb: convert ctrlr_sem in a mutexMatthias Kaehlcke2008-07-24
| | | | | | | | | | | The semaphore ctrlr_sem is used as a mutex. Convert it to the mutex API. Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net> Cc: Daniel Mack <daniel@caiaq.de> Cc: Eric Miao <eric.miao@marvell.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architecturesAndrea Righi2008-07-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On 32-bit architectures PAGE_ALIGN() truncates 64-bit values to the 32-bit boundary. For example: u64 val = PAGE_ALIGN(size); always returns a value < 4GB even if size is greater than 4GB. The problem resides in PAGE_MASK definition (from include/asm-x86/page.h for example): #define PAGE_SHIFT 12 #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) ... #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) The "~" is performed on a 32-bit value, so everything in "and" with PAGE_MASK greater than 4GB will be truncated to the 32-bit boundary. Using the ALIGN() macro seems to be the right way, because it uses typeof(addr) for the mask. Also move the PAGE_ALIGN() definitions out of include/asm-*/page.h in include/linux/mm.h. See also lkml discussion: http://lkml.org/lkml/2008/6/11/237 [akpm@linux-foundation.org: fix drivers/media/video/uvc/uvc_queue.c] [akpm@linux-foundation.org: fix v850] [akpm@linux-foundation.org: fix powerpc] [akpm@linux-foundation.org: fix arm] [akpm@linux-foundation.org: fix mips] [akpm@linux-foundation.org: fix drivers/media/video/pvrusb2/pvrusb2-dvb.c] [akpm@linux-foundation.org: fix drivers/mtd/maps/uclinux.c] [akpm@linux-foundation.org: fix powerpc] Signed-off-by: Andrea Righi <righi.andrea@gmail.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'pxa' into develRussell King2008-07-13
|\ | | | | | | | | | | | | Conflicts: arch/arm/configs/em_x270_defconfig arch/arm/configs/xm_x270_defconfig
| *-. Merge branches 'pxa-ezx', 'pxa-magician' and 'pxa-palm' into pxaRussell King2008-07-10
| |\ \
| | | * Merge branch 'machtypes' into pxa-palmRussell King2008-07-09
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| * | | [ARM] 5164/1: pxafb: Support for RGB666, RGBT666, RGB888 and RGBT888Stefan Schmidt2008-07-10
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | Add the .depth field to pxafb_mode_info and use it to set pixel data format as 18(RGB666), 19(RGBT666), 24(RGB888) or 25(RGBT888) Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 5118/1: pxafb: add exit and remove handlersJaya Kumar2008-07-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds exit and remove handlers to pxafb so that it can be loaded and unloaded as a module. Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [ARM] 5117/1: pxafb: fix __devinit/exit annotationsJaya Kumar2008-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes pxafb's init/exit annotations. It uses __devinit/exit for probe functions and __init for init functions. g_options is left as __devinitdata since it is used by both. Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [ARM] 5116/1: pxafb: cleanup and fix order of failure handlingJaya Kumar2008-06-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This issue was found by Krzysztof Helt and Eric Miao. pxafb had issues in the order with which it cleaned up if errors occurred during a probe. This patch reorders the failure handling sequence and also frees the cmap and clk. Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [ARM] 5115/1: pxafb: fix ifdef for command line option handlingJaya Kumar2008-06-22
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | This bug was found and fixed by Lothar Wassmann. Previously, the use of ifndef CONFIG_MODULES made it such that pxafb command line option parsing was dependent on whether the kernel was built with module support. The ifndef should be MODULE so that parsing is dependent only on whether the driver is built-in or not. Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] 5090/1: Correct pxafb palette typo errorJürgen Schindele2008-06-11
| | | | | | | | | | | | | | | | This patch correct a typo error in pxafb vhich is relevant for 8-bit palette framebuffer configuration. Signed-off-by: Jrgen Schindele <linux@schindele.name> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] 5043/1: pxafb: remove unused mode variable in pxafb_init_fbinfoPhilipp Zabel2008-05-22
|/ | | | | | Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] pxa: fix pxafb build when cpufreq is enabledRussell King2008-05-17
| | | | | | | | If cpufreq is enabled, pxafb wants to call the removed get_clk_frequency_khz() function for a debug printk. Remove this reference. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 5028/1: pxafb: fix broken "backward compatibility way" in framebufferGuennadi Liakhovetski2008-05-07
| | | | | | | | | | | | | | configuration Commit 84f43c308b73a6a12128288721a1007ba4f1a8da "pxafb: introduce register independent LCD connection type for pxafb" implements compatibility mode for old style pxafb_mach_info initialization data wrongly, causing the system to Oops repeatedly - first during probe, then when drawing. Fix it and make pxafb_decode_mach_info void. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* pxafb: preliminary smart panel interface support (update)Eric Miao2008-04-30
| | | | | | | | | | | FB_PXA_SMARTPANEL defaults to "n" and removed the cast to void *. Signed-off-by: Daniel Mack <daniel@caiaq.de> Acked-by: Eric Miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pxafb: preliminary smart panel interface supportEric Miao2008-04-30
| | | | | | | | | Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Eric Miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pxafb: move parallel LCD timing setup into dedicate functionEric Miao2008-04-30
| | | | | | | | | | | | | | | | the new_regs stuff has been removed, and all the setup (modification to those fbi->reg_*) is protected with IRQ disabled * disable IRQ is too heavy here, provided that no IRQ context will touch the fbi->reg_* and the only possible contending place is in the CPUFREQ_POSTCHANGE (task context), a mutex will be better, leave this for future improvement Signed-off-by: eric miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pxafb: use completion for LCD disable wait codeEric Miao2008-04-30
| | | | | | | | Signed-off-by: eric miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pxafb: introduce lcd_{read,write}l() to wrap the __raw_{read,write}l()Eric Miao2008-04-30
| | | | | | | | | | | using __raw_{read,write}l() everywhere looks messy, introduce lcd_{read,write}l() to get this cleaned up a bit Signed-off-by: eric miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pxafb: introduce register independent LCD connection type for pxafberic miao2008-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | Reasons: 1. straight forward: the name "LCD_COLOR_DSTN_16BPP" is much better than "LCCR0_Pas | LCCR0_Color | LCCR0_Dual" 2. by defining LCD connection types as constants, it allows only valid possibilities 3. by removing the dependency of register bits definitions, those can be later moved into the body of pxafb.c, instead of having a regs-lcd.h around Currently, only lubbock, mainstone, zylonite and littleton have been modified to support these types (see coming patches after this). Other platforms are encouraged to change their way describing the LCD controller connections. Signed-off-by: eric miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pxafb: introduce "struct pxafb_dma_buff" for palette and dma descriptorseric miao2008-04-30
| | | | | | | | | | | | | Use structure and array for palette buffer and dma descriptors to: 1. better organize code for future expansion like overlays 2. separate palette and dma descriptors from frame buffer Signed-off-by: eric miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pxafb: convert fb driver to use ioremap() and __raw_{readl, writel}eric miao2008-04-30
| | | | | | | | | | | | | | | | | | This is part of the effort moving peripheral registers outside of pxa-regs.h, and using ioremap() make it possible the same IP can be re-used on different processors with different registers space As a result, the fixed mapping in pxa_map_io() is removed. The regs-lcd.h can actually moved to where closer to pxafb.c but some of its bit definitions are directly used by various platform code, though this is not a good style. Signed-off-by: eric miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pxafb: sanitize the usage of #ifdef .. processing pxafb parameterseric miao2008-04-30
| | | | | | | | | | | So to get a better coding style and centralize the pxafb parameters handling code. Signed-off-by: eric miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pxafb: purge unnecessary pr_debug and comments from pxafberic miao2008-04-30
| | | | | | | | Signed-off-by: eric miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pxafb: fix various coding style issues for pxafberic miao2008-04-30
| | | | | | | | Signed-off-by: eric miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pxafb: un-nest pxafb_parse_options() to cleanup the coding style issueeric miao2008-04-30
| | | | | | | | | | | | | pxafb_parse_options() has very long lines exceeding far beyond 80 characters, which makes the function looks bad. Un-nest it into smaller functions and use a temporary string for only what has been overridden instead of the whole dev_info() message to reduce the line a bit more. Signed-off-by: eric miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [ARM] pxa: separate GPIOs and their mode definitions to pxa2xx-gpio.heric miao2008-04-19
| | | | | | | | | | | | | two reasons: 1. GPIO namings and their mode definitions are conceptually not part of the PXA register definitions 2. this is actually a temporary move in the transition of PXA2xx to use MFP-alike APIs (as what PXA3xx is now doing), so that legacy code will still work and new code can be added in step by step Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4828/1: fix 3 warnings in drivers/video/pxafb.cHolger Schurig2008-02-17
| | | | | | | | * Silence a debug output. * Silence three sparse warnings, one still left. Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* fbdev: change asm/uaccess.h to linux/uaccess.hKrzysztof Helt2007-10-16
| | | | | | | | | | | This patch replaces <asm/uaccess.h> with <linux/uaccess.h> after the checkpatch.pl hint. The include of <asm/uaccess.h> is removed if the driver does not use it. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pxafb: Add support for other palette formatsHans J. Koch2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the other three palette formats possible with the PXA LCD controller. This is required on boards where an LCD is connected with all its 18 bits. With this patch, it's possible to use an 8-bit mode with 18-bit palette entries. This used to be possible in 2.4 kernels but disappeared in 2.6. With current kernels, you can only get wrong colours out of an LCD connected this way. Users can choose the palette format by doing something like this in their board definition: static struct pxafb_mach_info my_fb_info = { [...] .lccr3 = LCCR3_OutEnH | LCCR3_PixFlEdg | LCCR3_PDFOR_3, .lccr4 = LCCR4_PAL_FOR_2, [...] }; Signed-off-by: Hans J. Koch <hjk@linutronix.de> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [ARM] pxa: update pxafb to use clk supportRussell King2007-10-12
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4544/1: arm: fix section mismatch in pxa fbSam Ravnborg2007-08-11
| | | | | | | | | | | | | Fix following section mismatch warning: WARNING: drivers/built-in.o(.text+0x73d0): Section mismatch: reference to .init.data: (between 'pxafb_setup' and 'pxafb_init') The warning are caused by __devinit pxafb_setup() that refers to a variable marked __initdata. In a hotplug scenario we would have a reference to the freed .init.data section. Fix this by declaring g_options __devinitdata. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* VIDEO: add spaces on either side of the case "..." operatorRobert P. J. Day2007-05-08
| | | | | | | | | | Following the programming advice laid down in the gcc manual, make sure the case "..." operator has spaces on either side. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [ARM] 4304/1: removes the unnecessary bit number from CKENnn_XXXXEric Miao2007-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the unnecessary bit number from CKENnn_XXXX definitions for PXA, so that CKEN0_PWM0 --> CKEN_PWM0 CKEN1_PWM1 --> CKEN_PWM1 ... CKEN24_CAMERA --> CKEN_CAMERA The reasons for the change of these defitions are: 1. they do not scale - they are currently valid for pxa2xx, but definitely not valid for pxa3xx, e.g., pxa3xx has bit 3 for camera instead of bit 24 2. they are unnecessary - the peripheral name within the definition has already announced its usage, we don't need those bit numbers to know which peripheral we are going to enable/disable clock for 3. they are inconvenient - think about this: a driver programmer for pxa has to remember which bit in the CKEN register to turn on/off Another change in the patch is to make the definitions equal to its clock bit index, so that #define CKEN_CAMERA (24) instead of #define CKEN_CAMERA (1 << 24) this change, however, will add a run-time bit shift operation in pxa_set_cken(), but the benefit of this change is that it scales when bit index exceeds 32, e.g., pxa3xx has two registers CKENA and CKENB, totally 64 bit for this, suppose CAMERA clock enabling bit is CKENB:10, one can simply define CKEN_CAMERA to be (32 + 10) and so that pxa_set_cken() need minimum change to adapt to that. Signed-off-by: eric miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4034/1: pxafb: Fix compile errorsRichard Purdie2006-12-17
| | | | | | | | Fix pxafb compile failures when CONFIG_FB_PXA_PARAMETERS is enabled after recent structure changes. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* WorkQueue: Fix up arch-specific work items where possibleDavid Howells2006-12-05
| | | | | | | | | | Fix up arch-specific work items where possible to use the new work_struct and delayed_work structs. Three places that enqueue bits of their stack and then return have been marked with #error as this is not permitted. Signed-Off-By: David Howells <dhowells@redhat.com>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
* [ARM] 3848/1: pxafb: Add option of fixing video modes and spitz QVGA mode ↵Richard Purdie2006-10-02
| | | | | | | | | | | | | | | | | | | support Add the ability to have pxafb use only certain fixed video modes (selected on a per platform basis). This is useful on production hardware such as the Zaurus cxx00 models where the valid modes are known in advance and any other modes could result in hardware damage. Following this, add support for the cxx00 QVGA mode. Mode information is passed to the lcd_power call to allowing the panel drivers to configure the display hardware accordingly (corgi_lcd already contains the functionality for the cxx00 panel). This mirrors the setup already used by w100fb. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] irq-flags: video: Use the new IRQF_ constantsThomas Gleixner2006-07-02
| | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-30
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] pxafb: Minor driver fixesRichard Purdie2006-03-31
| | | | | | | | | | | | | | | | | | Fixes for the pxafb driver: * Return -EINVAL for resolutions that are too large as per framebuffer driver policy. * Increase the error timeout for disabling the LCD controller. The current timeout is sometimes too short on the Sharp Zaurus Cxx00 hardware and an extra delay in an error path shouldn't pose any problems. * Fix a dev reference which causes a compile error when DEBUG is defined. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: Sanitize ->fb_mmap prototypeChristoph Hellwig2006-01-14
| | | | | | | | | | | No need for a file argument. If we'd really need it it's in vma->vm_file already. gbefb and sgivwfb used to set vma->vm_file to the file argument, but the kernel alrady did that. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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