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* davinci: fb: update the driver in preparation for addition of power ↵Chaithrika U S2009-12-162-16/+28
| | | | | | | | | | | | | | | | 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>
* clps711xfb: convert to proc_fopsAlexey Dobriyan2009-12-161-29/+21
| | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/video/via/viafbdev.c: fix oops with no /procDan Carpenter2009-12-161-1/+1
| | | | | | | | | | | | | | Fixed a typo: missing *. This would lead to a kernel oops if the kernel was compiled without support for the /proc file system. Found with a static checker. Compile tested. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Scott Fang <ScottFang@viatech.com.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sm501: implement acceleration featuresVincent Sanders2009-12-162-13/+226
| | | | | | | | | | | | | | | | This patch provides the acceleration entry points for the SM501 framebuffer driver. This patch provides the sync, copyarea and fillrect entry points, using the SM501's 2D acceleration engine to perform the operations in-chip rather than across the bus. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Simtec Linux Team <linux@simtec.co.uk> Signed-off-by: Vincent Sanders <vince@simtec.co.uk> 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>
* sm501: fix use of old <asm/io.h> instead of <linux/io.h>Ben Dooks2009-12-161-1/+1
| | | | | | | | | | | Fix the old style use of <asm/io.h> by replacing it with <linux/io.h>. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Simtec Linux Team <linux@simtec.co.uk> Cc: Vincent Sanders <vince@simtec.co.uk> 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>
* sm501: fix missing uses of resource_size()Ben Dooks2009-12-161-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | There are several places in the SM501 fb driver that could do with using resource_size() to calculate the size of a resource. Also fix a bug where request_mem_region() is being passed one too few bytes when requesting the register memory region, which was causing the following in /proc/iomem: 13e80000-13e8ffff : sm501-fb.0 13e80000-13e8fffe : sm501-fb fixed, this reads: 13e80000-13e8ffff : sm501-fb.0 13e80000-13e8ffff : sm501-fb Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Simtec Linux Team <linux@simtec.co.uk> Cc: Vincent Sanders <vince@simtec.co.uk> 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>
* i810fb: fix stack explodingKrzysztof Helt2009-12-161-24/+29
| | | | | | | | | Alan Cox has found that the i810fb function "uses a whopping 2.5K of stack". Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Reported-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* lxfb: add copyright/license infoAndres Salomon2009-12-161-0/+10
| | | | | | | | | The GRUB folks requested copyright/license info for lxfb.h, so here it is. Signed-off-by: Andres Salomon <dilinger@collabora.co.uk> Cc: Jordan Crouse <jordan@cosmicpenguin.net> 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>
* mb862xxfb: add acceleration support for Coral-P/Coral-PA. * imageblt * ↵Valentin Sitdikov2009-12-165-1/+551
| | | | | | | | | | | | | | copyarea * fillrect [akpm@linux-foundation.org: clean up comments, remove do-nothing tests, use min()] [akpm@linux-foundation.org: fix Alexandr's email address] [akpm@linux-foundation.org: export mb862xxfb_init_accel] Signed-off-by: Valentin Sitdikov <valentin.sitdikov@siemens.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Anatolij Gustschin <agust@denx.de> Signed-off-by: Alexander Shishkin <virtuoso@slind.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/video: Move dereference after NULL testJulia Lawall2009-12-161-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | If the NULL test on fbi is needed, then the dereference should be after the NULL test. A simplified version of the semantic match that detects this problem is as follows (http://coccinelle.lip6.fr/): // <smpl> @match exists@ expression x, E; identifier fld; @@ * x->fld ... when != \(x = E\|&x\) * x == NULL // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Daniel Mack <daniel@caiaq.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fbdev: add palette register check to several driversKrzysztof Helt2009-12-165-2/+12
| | | | | | | | | | | | Add check if palette register number is in correct range for few drivers which miss it. The regno value comes indirectly from user space. Two drivers has converted check from BUG_ON() macro to just return an error (non-zero value). Signed-off-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>
* fbdev: drop custom atoi from drivers/video/modedb.cAndy Shevchenko2009-12-161-19/+5
| | | | | | | | | Kernel has simple_strtol() implementation which could be used as atoi(). Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.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>
* fbdev: TV_PALN bit set twice in sisfb_detect_VB_connect()Roel Kluin2009-12-161-1/+1
| | | | | | | | | | The TV_PALN bit was tested twice, replace one by TV_PALM. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Thomas Winischhofer <thomas@winischhofer.net> 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>
* fbdev: bfin-t350mcqb-fb: fix LCD dimensionsMichael Hennerich2009-12-161-2/+2
| | | | | | | | | | The height/width framebuffer members need to be set in millimeters so that software can do proper scaling. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fbdev: bfin-t350mcqb-fb: handle all resources in suspend/resumeMichael Hennerich2009-12-161-5/+23
| | | | | | | | | The LCD commands DMA/timers as well as PPI which we need to save/restore. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fbdev: bfin-lq035q1-fb: new Blackfin Landscape LCD EZ-Extender driverMichael Hennerich2009-12-164-0/+870
| | | | | | | | | | | Framebuffer driver for the Landscape LCD EZ-Extender (ADZS-BFLLCD-EZEXT) http://docs.blackfin.uclinux.org/doku.php?id=hw:cards:landscape_lcd_ez-extender Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* gpiolib: add support for changing value polarity in sysfsJani Nikula2009-12-164-12/+176
| | | | | | | | | | | | | Drivers may use gpiolib sysfs as part of their public user space interface. The GPIO number and polarity might change from board to board. The gpio_export_link() call can be used to hide the GPIO number from user space. Add support for also hiding the GPIO line polarity changes from user space. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* gpio: add GPIO driver for the Timberdale FPGARichard Röjfors2009-12-164-0/+386
| | | | | | | | | | | | A GPIO driver for the Timberdale FPGA found on the Intel Atom board Russellville. The GPIO driver also has an IRQ-chip to support interrupts on the pins. Signed-off-by: Richard Röjfors <richard.rojfors@mocean-labs.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* gpio: fix test on unsigned in lnw_irq_type()Roel Kluin2009-12-161-1/+1
| | | | | | | | | | The wrong test was used, gpio is unsigned and it had an off-by-one. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Alek Du <alek.du@intel.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ARM: NUC900: add RTC driver support for nuc910 and nuc920Wan ZongShun2009-12-163-0/+349
| | | | | | | | | | | Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Hu Ruihuan <specter118@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: "jack wang" <jack_wang@usish.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-x1205: unconditionally set date when setting clockJohannes Weiner2009-12-161-35/+18
| | | | | | | | | | | All callsites of x1205_set_datetime() want the date to be set as well, so remove the flag parameter and set it unconditionally. Signed-off-by: Johannes Weiner <jw@emlix.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Paul Gortmaker <p_gortmaker@yahoo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-vr41xx: use resource_size()Yoichi Yuasa2009-12-161-2/+2
| | | | | | Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: ds1307 make it possible to share an irqDmitry Eremin-Solenikov2009-12-161-1/+1
| | | | | | | | | | | It's possible to have RTC irq shared with other device (e.g. mpc8349e-mitx board shares ds1339 irq with phy one). Handle this in driver. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: remove __raw_* accessors from PL031 RTCLinus Walleij2009-12-161-11/+12
| | | | | | | | | | | This switches __raw_[read|write]l() for plain [read|write]l in the PL031 RTC driver. The sister driver for PL030 use the simple accessors as most PrimeCell drivers. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: add driver for BQ32000 I2C RTCPiotr Ziecik2009-12-163-0/+214
| | | | | | | | | | | This patch adds basic support for Texas Instruments BQ32000 I2C RTC. Only time reading/writing is implemented. Advanced features, such as trickle charger and crystal calibration are not supported. Signed-off-by: Piotr Ziecik <kosmo@semihalf.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: make rtc-omap driver ioremap its register spaceMark A. Greer2009-12-162-24/+30
| | | | | | | | | | | | | | | | | | The rtc-omap driver currently assumes that the rtc's registers are at a fixed address and already mapped into virtual memory space. Remove those assumptions so the same driver can be used for similar devices that reside at different physical addresses (e.g., TI's DA8xx/OMAP-L13x SoC's). Also allow the possibility for the timer and alarm interrupts to use the same IRQ. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: add Freescale MC13783 RTC driverUwe Kleine-König2009-12-163-0/+269
| | | | | | | | | | | | | | This driver provides support for the RTC part integrated into the Freescale MC13783 PMIC and bases on patch created earlier by Sascha Hauer. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Cc: Paul Gortmaker <p_gortmaker@yahoo.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: convert WM8350 RTC driver to dev_pm_opsMark Brown2009-12-161-4/+10
| | | | | | | | | Convert WM8350 RTC driver to dev_pm_ops Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-mv: add support for AlarmSaeed Bishara2009-12-161-3/+154
| | | | | | | | | | | | | | This patch adds the Alarm support, this mode enabled when adding IORESOURCE_IRQ to the platform device resources. The patch also enables the wakeup mode, so the wakealarm sysfs file (under /sys/class/rtc/rtcX/) can be used to configure the alarm clock. Signed-off-by: Saeed Bishara <saeed@marvell.com> Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: pcf50633: manage RTC alarm "pending" flagWerner Almesberger2009-12-161-0/+5
| | | | | | | | | | | | | | | | Add setting and clearing of the "pending" flag of the RTC alarm. The semantics follow the UEFI specification 2.2 available at http://www.uefi.org/specs/, i.e., the "pending" flag is cleared by disabling the alarm, but not by any other condition (such as the passing of time, a successful wakeup, or setting of a new alarm.) Signed-off-by: Werner Almesberger <werner@openmoko.org> Signed-off-by: Paul Fertser <fercerpav@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Paul Gortmaker <p_gortmaker@yahoo.com> Cc: Balaji Rao <balajirrao@openmoko.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* efirtc: explicitly set llseek to no_llseekJohn Kacur2009-12-161-0/+1
| | | | | | | | | | | | | | | | | | | Now that we've removed the BKL here, let's explicitly set llseek to no_llseek since the default llseek is not used here. The default_llseek function still contains the BKL. When we are auditing code to see if we can remove the BKL, this is one of the hidden considerations we need to take into account. i.e., is there syncronization between code that has the BKL and llseek. At the same time we remove the BKL it would be a good idea to do indicate when no llseek function is required, so we don't have to revisit this code again, when we are trying to determine if we can remove the BKL from the default_llseek. Signed-off-by: John Kacur <jkacur@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: do not use container_of macro as an argument for to_platform_deviceAtsushi Nemoto2009-12-163-12/+12
| | | | | | | | | | | | | | | | The to_platform_device macro itself uses container_of macro. Nested use of container_of macro causes following sparse warnings: rtc-ds1553.c:259:3: warning: symbol '__mptr' shadows an earlier one rtc-ds1553.c:259:3: originally declared here Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Alessandro Zummo <alessandro.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Cc: Andrew Sharp <andy.sharp@lsi.com> Cc: Thomas Hommel <thomas.hommel@gefanuc.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-stk17ta8: fix races around device registrationAtsushi Nemoto2009-12-161-69/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | - Call dev_set_drvdata before rtc device creation. - Use its own spinlock instead of rtc->irq_lock. Because pdata->rtc must be initialized to use the irq_lock (pdata->rtc->irq_lock). There is a small window which rtc methods can be called before pdata->rtc is initialized. And there is no need use the irq_lock to protect hardware registers. The driver's own spinlock shoule be enough. - Check pdata->rtc before calling rtc_update_irq. - Use alarm_irq_enable and remove ioctl routine. - Use devres APIs and simplify error/remove path. These fixes are ported from ds1553 driver and just compile-tested only. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Alessandro Zummo <alessandro.zummo@towertech.it> Cc: Thomas Hommel <thomas.hommel@gefanuc.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-ds1742: fix races around device registrationAtsushi Nemoto2009-12-161-35/+16
| | | | | | | | | | | * Call dev_set_drvdata before rtc device creation * Use devres APIs and simplify error/remove path Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-ds1553: fix races around device registrationAtsushi Nemoto2009-12-161-77/+64
| | | | | | | | | | | | | | * Call dev_set_drvdata before rtc device creation * Use its own spinlock instead of rtc->irq_lock * Check pdata->rtc before calling rtc_update_irq * Use {alarm,update}_irq_enable and remove ioctl routine * Use devres APIs and simplify error/remove path Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-tx4939: fix races around device registrationAtsushi Nemoto2009-12-161-25/+26
| | | | | | | | | | | | * Use its own spinlock instead of rtc->irq_lock * Check pdata->rtc before calling rtc_update_irq * Disable interrupt after rtc_device_unregister Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-ds1511: fix races around device registrationAtsushi Nemoto2009-12-161-88/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Call dev_set_drvdata before rtc device creation. - Use its own spinlock instead of rtc->irq_lock. Because pdata->rtc must be initialized to use the irq_lock (pdata->rtc->irq_lock). There is a small window which rtc methods can be called before pdata->rtc is initialized. And there is no need use the irq_lock to protect hardware registers. The driver's own spinlock shoule be enough. - Check pdata->rtc before calling rtc_update_irq. - Use {alarm,update}_irq_enable and remove ioctl routine. - Use devres APIs and simplify error/remove path. These fixes are ported from ds1553 driver and just compile-tested only. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Andrew Sharp <andy.sharp@lsi.com> Cc: Thomas Hommel <thomas.hommel@gefanuc.com> Cc: David Brownell <david-b@pacbell.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-cmos: convert RTC_AIE/RTC_UIE to rtc irq APIHerton Ronaldo Krzesinski2009-12-161-40/+35
| | | | | | | | | | | Drop ioctl function that handles RTC_AIE/RTC_UIE, and use instead the rtc subsystem API (alarm_irq_enable/update_irq_enable callbacks). Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: fix driver data issues in several rtc driversAlessandro Zummo2009-12-1610-42/+42
| | | | | | | | | | | | | | | | | | | | | | Herton Ronaldo Krzesinski recently raised up, and fixed, an issue with the rtc_cmos driver, which was referring to an inconsistent driver data. This patch ensures that driver data registration happens before rtc_device_register(). Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Acked-by: Thomas Hommel <thomas.hommel@gefanuc.com> Acked-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Cc: David S. Miller <davem@davemloft.net> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Andrew Sharp <andy.sharp@onstor.com> Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Alexander Bigga <ab@mycable.de> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Mark Zhan <rongkai.zhan@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: disable hpet emulation on suspendMaxim Levitsky2009-12-161-1/+2
| | | | | | | | | | | | | | | | | | | | | | | I noticed that rtc wont generate interrupts after a resume from disk. Here hpet rtc emulation is used. Problem is that rtc hpet comparator, isn't reinitialized after resume. Easiest way to solve this, is always mask all hpet interrupts on suspend This is triggered, when suspending with alarm set. Otherwise, hpet driver will think it doesn't need to reinitialize the rtc comparator, thus rtc interrupts won't work. This emulation isn't need for wakealarm. Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com> Cc: David Brownell <david-b@pacbell.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* autofs4: always use lookup for lookupIan Kent2009-12-164-158/+330
| | | | | | | | | | | | | | | | | We need to be able to cope with the directory mutex being held during ->d_revalidate() in some cases, but not all cases, and not necessarily by us. Because we need to release the mutex when we call back to the daemon to do perform a mount we must be sure that it is us who holds the mutex so we must redirect mount requests to ->lookup() if the mutex is held. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* autofs4: rename dentry to expiring in autofs4_lookup_expiring()Ian Kent2009-12-161-12/+12
| | | | | | | | | | | | | | In autofs4_lookup_expiring() a declaration within the list traversal loop uses a declaration that has the same name as the function parameter. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* autofs4: rename dentry to active in autofs4_lookup_active()Ian Kent2009-12-161-12/+12
| | | | | | | | | | | | | | In autofs4_lookup_active() a declaration within the list traversal loop uses a declaration that has the same name as the function parameter. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* autofs4: eliminate d_unhashed in path walk checksIan Kent2009-12-161-4/+3
| | | | | | | | | | | | | | | | | | | We unhash the dentry (in a subsequent patch) in ->d_revalidate() in order to send mount requests to ->lookup(). But then we can not rely on d_unhased() to give reliable results because it may be called at any time by any code path. The d_unhashed() function is used by __simple_empty() in the path walking callbacks but autofs mount point dentrys should have no directories at all so a list_empty() on d_subdirs should be (and is) sufficient. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* autofs4: cleanup active and expire lookupIan Kent2009-12-161-6/+10
| | | | | | | | | | | | | | | | The lookup functions for active and expiring dentrys use parameters that can be easily obtained on entry so we change the call to to take just the dentry. This makes the subsequent change, to send all lookups to ->lookup(), a bit cleaner. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* autofs4: renamer unhashed to active in autofs4_lookup()Ian Kent2009-12-161-10/+10
| | | | | | | | | | | | | | Rename the variable unhashed to active in autofs4_lookup() to better reflect its usage. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* autofs4: use autofs_info for pending flagIan Kent2009-12-163-28/+35
| | | | | | | | | | | | | | | | Eliminate the use of the d_lock spin lock by using the autofs super block info spin lock. This reduces the number of spin locks we use by one and makes the code for the following patch (to redirect ->d_revalidate() to ->lookup()) a little simpler. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* autofs4: use helper function for need mount checkIan Kent2009-12-161-2/+10
| | | | | | | | | | | | | Define simple helper function for checking if we need to trigger a mount. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
generated by cgit v1.1 at 2024-09-12 16:56:28 +0000