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2012-03-05ARM: OMAP1: ams-delta: update the modem to use regulator APIJanusz Krzysztofik
After the CX20442 codec driver already takes care of enabling the codec power for itself (commit f75a8ff67d161b5166a2c2360bb2ffaefd5eb853, "ASoC: cx20442: add bias control over a platform provided regulator"), but before dropping the old bias control method from the Amstrad Delta ASoC sound card file, which in fact keeps the modem power always on, even on the ASoC device close for now, extend the modem setup with a power management callback which toggles the regulator up to the modem's needs, reusing the previously set up regulator consumer for this. Also, drop the MODEM_NRESET pin setup from the modem initialization procedure, as this operation was already ineffective since patch 1/3, and not needed because the regulator is set up as initially enabled. Depends on patch 1/3 "ARM: OMAP1: ams-delta: set up regulator over modem reset GPIO pin" to apply cleanly. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-03-05ARM: OMAP1: ams-delta: set up regulator over modem reset GPIO pinJanusz Krzysztofik
The Amstrad Delta on-board latch2 bit named MODEM_NRESET, now available as a GPIO pin AMS_DELTA_GPIO_PIN_NMODEM_RESET, is used to power up/down (bring into/out of a reset state) two distinct on-board devices simultaneously: the modem, and the voice codec. As a consequence, that bit is, or can be, manipulated concurrently by two drivers, or their platform provided hooks. Instead of updating those drivers to use the gpiolib API as a new method of controlling the MODEM_NRESET pin state, like it was done to other drivers accessing latch2 pins, and still being vulnerable to potential concurrency conflicts, or trying to solve that sharing issue with a custom piece of code, set up a fixed regulator device on top of that GPIO pin, with the intention of updating both drivers to manipulate that regulator, not the GPIO pin directly. Before the ASoC driver is updated and the modem platform data expanded with a power management callback for switching its power, the ams_delta_latch_write() function, which still provides the old API for accessing latch2 functionality from not updated drivers, is modified to toggle the regulator instead of the MODEM_NRESET GPIO pin. A helper function provided for balancing the regulator enable/disable operations, together with the consumer data needed for tracking the regulator state, will be removed once the drivers are updated. Depends on patch series "ARM: OMAP1: ams-delta: replace custom I/O with GPIO". Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-03-02Merge branch 'depends/omap/gpio/runtime-pm-cleanup' into next/cleanupArnd Bergmann
Conflicts: arch/arm/mach-omap1/gpio16xx.c drivers/gpio/gpio-omap.c Merge in the runtime-pm-cleanup branch from the gpio tree into next/cleanup, this resolves a nonobvious merge conflict between the two branches. Both branches move parts of the gpio-omap driver into platform code, this takes the superset of both changes. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-03-01ARM: OMAP1: ams-delta: clean up init data section assignmentsJanusz Krzysztofik
The main purpose of this patch is to fix several section mismatch warnings from the board file and a few board specific drivers, introduced with recent Amstrad Delta patch series, some of them rising up only when building with CONFIG_MODULES not set. While being at it, section tagging of all init data found in the board file have been revised and hopefully corrected and/or optimized. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-03-01ARM: OMAP1: ams-delta: fix incorrect section tagsJanusz Krzysztofik
While resolving section mismatches introduced with recent patches to for-next, a few dangerous, driver bind/unbind unaware section tagging already present in mainline have been identified. Fix them. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-29Merge branch 'omap1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/boards * 'omap1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: input: serio: ams-delta: toggle keyboard power over GPIO omapfb: lcd_ams_delta: drive control lines over GPIO MTD: NAND: ams-delta: use GPIO instead of custom I/O LED: drop leds-ams-delta driver ARM: OMAP1: ams-delta: supersede custom led device by leds-gpio ARM: OMAP1: ams-delta: convert latches to basic_mmio_gpio ARM: OMAP1: ams-delta: register latch dependent devices later
2012-02-28Merge branch 'iomap' into cleanupTony Lindgren
2012-02-24ARM: OMAP: Remove plat/io.h by splitting it into mach/io.h and mach/hardware.hTony Lindgren
This is needed to minimize io.h so the SoC specific io.h for ARMs can removed. Note that minimal driver changes for DSS and RNG are needed to include cpu.h for SoC detection macros. Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Matt Mackall <mpm@selenic.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-24ARM: OMAP1: Move most of plat/io.h into local iomap.hTony Lindgren
There's no need to have these in plat/io.h. While at it, clean up the includes to group them like they typically are grouped. Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-24ARM: OMAP1: Move 16xx GPIO system clock to platform init codeTony Lindgren
This way we can remove omap_read/write call from the GPIO driver and remove include to linux/io.h. Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-24ARM: OMAP: Move omap_init_consistent_dma_size() to local common.hTony Lindgren
We don't want to keep it in io.h as we want to remove io.h for omap2+ for the common zImage support. Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-23OMAP1: Remove unused LCD devices from board filesTomi Valkeinen
Some OMAP1 board files define LCD platform_devices, but there are no corresponding LCD drivers for those in the kernel. Thus remove these LCD devices. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Tony Lindgren <tony@atomide.com>
2012-02-23OMAP1: pass LCD config with omapfb_set_lcd_config()Tomi Valkeinen
LCD config for old omapfb driver is passed with OMAP_TAG_LCD from board files or from the bootloader. In an effort to remove OMAP_TAG_LCD, this patch adds omapfb_set_lcd_config() function that the board files can call to set the LCD config. This has the drawback that configuration can no longer come from the bootloader. Of the boards supported by the kernel, this should only affect N770 which depends on the data from the bootloader. This patch adds an LCD config for N770 to its board files, but that is most probably broken. Fixing this would need information about the HW setup in N770 boards. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Tony Lindgren <tony@atomide.com>
2012-02-23OMAP: N770: remove HWA742 platform dataTomi Valkeinen
In an effort to clean up the old omapfb driver, this patch removes HWA742 (the display chip used in N770) platform data. This can be done as N770 is the only user of HWA742, and the platform data contains only one field, te_connected, which we can just presume to be true in the HWA742 driver. This allows us to remove omapfb_set_ctrl_platform_data(), and the mechanism to pass the platform data, in a later patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Tony Lindgren <tony@atomide.com>
2012-02-22Merge branch 'entry-macro-cleanup' of git://sources.calxeda.com/kernel/linux ↵Russell King
into for-armsoc
2012-02-21ARM: OMAP1: Fix out-of-bounds array access for InnovatorTony Lindgren
Otherwise we can get the following on some compilers: arch/arm/mach-omap1/board-innovator.c:419:19: warning: array subscript is above array bounds [-Warray-bounds] arch/arm/mach-omap1/board-innovator.c:425:19: warning: array subscript is above array bounds [-Warray-bounds] Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-21ARM: remove disable_fiq and arch_ret_to_user macrosRob Herring
Now that most platforms don't need disable_fiq and arch_ret_to_user macros, we can remove the empty macros or empty entry-macro.S files. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2012-02-09mach-omap1: Fix typo in lcd_dma.cMasanari Iida
Correct spelling "resulotion" to "resolution" in arch/arm/mach-omap1/lcd_dma.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-06gpio/omap: fix bankwidth for OMAP7xx MPUIOCharulatha V
In all OMAP1 SoCs, the MPUIO bank width is 16 bits. But, in OMAP7xx, it is wrongly initialised to 32. Fix this. Signed-off-by: Charulatha V <charu@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-02-06gpio/omap: remove bank->method & METHOD_* macrosCharulatha V
The only bank->type (method) used in the OMAP GPIO driver is MPUIO type as they need to be handled separately. Identify the same using a flag and remove all METHOD_* macros. mpuio_init() function is defined under #ifdefs. It is required only in case of MPUIO bank type and only when PM operations are supported by it. This is applicable only in case of OMAP16xx SoC's MPUIO GPIO bank type. For all the other cases it is a dummy function. Hence clean up the same and remove all the OMAP SoC specific #ifdefs. Signed-off-by: Charulatha V <charu@ti.com> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-02-06gpio/omap: use pinctrl offset instead of macroCharulatha V
Use regs->pinctrl field instead of using the macro OMAP1510_GPIO_PIN_CONTROL Signed-off-by: Charulatha V <charu@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-02-06gpio/omap: cleanup omap_gpio_mod_init functionTarun Kanti DebBarma
With register offsets now defined for respective OMAP versions we can get rid of cpu_class_* checks. This function now has common initialization code for all OMAP versions. Initialization specific to OMAP16xx has been moved within omap16xx_gpio_init(). Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: Charulatha V <charu@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-02-06gpio/omap: cleanup set_gpio_triggering functionTarun Kanti DebBarma
Getting rid of ifdefs within the function by adding register offset intctrl and associating OMAPXXXX_GPIO_INT_CONTROL in respective SoC specific files. Also, use wkup_status register consistently instead of referring to wakeup clear and wakeup set register offsets. Get rid of cpu_is_xxxx checks in set_gpio_trigger() using irqctrl. Signed-off-by: Charulatha V <charu@ti.com> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-02-06gpio/omap: further cleanup using wkup_en registerTarun Kanti DebBarma
Wakeup enable register offset initialized according to OMAP versions during device registration. Use this to avoid version checks. Starting with OMAP4, legacy registers should not be used in combination with the updated regsiters. Use wkup_en register consistently for all SoCs wherever applicable. Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: Charulatha V <charu@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-02-06gpio/omap: remove dependency on gpio_bank_countCharulatha V
The gpio_bank_count is the count of number of GPIO devices in a SoC. Remove this dependency from the driver by using list. Also remove the dependency on array of pointers to gpio_bank struct of all GPIO devices. Signed-off-by: Charulatha V <charu@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-01-20ARM: big removal of now unused arch_idle()Nicolas Pitre
When this is the only content remaining in mach/system.h then the whole file is removed. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-and-tested-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: David Brown <davidb@codeaurora.org> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-01-20ARM: OMAP: convert idle handlers from pm_idle to arm_pm_idleNicolas Pitre
Signed-off-by: Nicolas Pitre <nico@linaro.org> Tested-by: Tony Lindgren <tony@atomide.com>
2012-01-20ARM: OMAP1: Fix pm_idle during suspendNicolas Pitre
Commit 9ccdac3662dbf3c75e8f8851a214bdf7d365a4bd ([ARM] idle: clean up pm_idle calling, obey hlt_counter) removed a check for NULL pm_idle. Replace the NULL assignment in the OMAP1 code with disable_hlt() to be in sync with the core code and restore the intended behavior. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com>
2012-01-20Merge branch 'omap1-part2' into omap1Tony Lindgren
Conflicts: drivers/leds/leds-ams-delta.c
2012-01-09Merge tag 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds
New feature development This adds support for new features, and contains stuff from most platforms. A number of these patches could have fit into other branches, too, but were small enough not to cause too much confusion here. * tag 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits) mfd/db8500-prcmu: remove support for early silicon revisions ARM: ux500: fix the smp_twd clock calculation ARM: ux500: remove support for early silicon revisions ARM: ux500: update register files ARM: ux500: register DB5500 PMU dynamically ARM: ux500: update ASIC detection for U5500 ARM: ux500: support DB8520 ARM: picoxcell: implement watchdog restart ARM: OMAP3+: hwmod data: Add the default clockactivity for I2C ARM: OMAP3: hwmod data: disable multiblock reads on MMC1/2 on OMAP34xx/35xx <= ES2.1 ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP4 ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3 ARM: OMAP: hwmod data: Add support for AM35xx UART4/ttyO3 ARM: Orion: Remove address map info from all platform data structures ARM: Orion: Get address map from plat-orion instead of via platform_data ARM: Orion: mbus_dram_info consolidation ARM: Orion: Consolidate the address map setup ARM: Kirkwood: Add configuration for MPP12 as GPIO ARM: Kirkwood: Recognize A1 revision of 6282 chip ARM: ux500: update the MOP500 GPIO assignments ...
2012-01-05Merge branch 'restart' into for-linusRussell King
Conflicts: arch/arm/mach-exynos/cpu.c The changes to arch/arm/mach-exynos/cpu.c were moved to mach-exynos/common.c.
2012-01-05Merge branch 'devel-stable' into for-linusRussell King
Conflicts: arch/arm/kernel/setup.c arch/arm/mach-shmobile/board-kota2.c
2012-01-05ARM: restart: omap: use new restart hookRussell King
Hook these platforms restart code into the new restart hook rather than using arch_reset(). Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-05Merge branch 'for-russell' of git://hansjkoch.de/git/linux-tcc into HEADRussell King
Conflicts: arch/arm/plat-omap/include/plat/common.h
2011-12-22input: serio: ams-delta: toggle keyboard power over GPIOJanusz Krzysztofik
Don't use Amstrad Delta custom I/O functions once GPIO interface is available for the underlying hardware. While requesting and initializing GPIO pins used, also take care of one extra pin KEYBRD_DATAOUT which, even if not used by the driver, belongs to the device and affects its functioning. Once done, move the driver initialization back to the device_initcall level, reverting the temporary chane introduced with patch 1/7 "ARM: OMAP1: ams-delta: register latch dependent devices later". That change is no longer required once the driver takes care of registering used GPIO pins, and it's better to initialize the device before others using the latch2 based GPIO pins, otherwise a garbage is reported on boot, perhaps due to random data already captured by the FIQ handler while the keyboard related latch bits are written with random values during initialization of those other latch2 dependent devices. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Dmitry Torokhov <dtor@mail.ru> [tony@atomide.com: renamed _gpios to ams_delta_gpios] Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-22omapfb: lcd_ams_delta: drive control lines over GPIOJanusz Krzysztofik
Don't use Amstrad Delta custom I/O functions any longer, use GPIO API instead. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-22MTD: NAND: ams-delta: use GPIO instead of custom I/OJanusz Krzysztofik
Don't use Amstrad Delta custom I/O functions for controlling the device, use GPIO API instead. While being at it, add missing gpio_free(AMS_DELTA_GPIO_PIN_NAND_RB). Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Cc: David Woodhouse <dwmw2@infradead.org> Reviewed-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-22ARM: OMAP1: ams-delta: supersede custom led device by leds-gpioJanusz Krzysztofik
Now that the Amstrad Delta on-board latches have been converted to GPIO devices, use the generic driver to control on-board LEDs which hang off those latches. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-22ARM: OMAP1: ams-delta: convert latches to basic_mmio_gpioJanusz Krzysztofik
Once ready, ams-delta specific device drivers currently calling custom ams_delta_latch[12]_write() functions can be updated to call generic gpio_set_value() instead, which will make them less platform dependent. Even more, some custom ams-delta only drivers can perhaps be dropped from the tree after converting selected ams-delta platform devices to follow generic GPIO based device models. The latch_gpios[] table is initially filled with all latch1 and latch2 GPIO pins in order to register and initialize them from the board file until those are handled by respective existing device drivers (leds, nand, lcd, serio, asoc, serial). That table will get almost empty after the transision process is completed, holding only pins not used by any drivers / connected to unused devices, in order to initialize them from the board file for power saving purposes. The new ams_delta_latch_write() function is a unified replacement for those removed ams_delta_latch[12]_write(), and serves as a temporary wrapper over gpio_set_value(), providing the old API for those not yet updated device drivers, and will be removed after all custom drivers are converted or replaced. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-21ARM: OMAP1: ams-delta: register latch dependent devices laterJanusz Krzysztofik
In preparation to converting Amstrad Delta on-board latches to basic_mmio_gpio devices, registration of platform devices which depend on latches and will require initialization of their GPIO pins first, should be moved out of .machine_init down to late_initcall level, as the gpio-generic driver is not available until device_initcall time. The latch reset operation, which will be replaced with GPIO initialization, must also be moved to late_initcall for the same reason. Since there was already another, separate arch_initcall function for setting up one of those latch dependent devices, the on-board modem device, reuse that function, i.e., rename it to a name that matches the new purpose, extend with other device setup relocated from .machine_init, and move down to the late_initcall level. While being at it, add missing gpio_free() in case the modem platform device registration fails. Thanks to Tony Lindgren <tony@atomide.com> who suggested this approach instead of shifting up the gpio-generic driver initialization. In addition, defer registration of the Amstrad Delta ASoC and serio devices, done from their device driver files, until late_initcall time, as those drivers will depend on their GPIO pins already requested from the board late_init() function until updated to register their GPIO pins themselves. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-19Merge branch 'picoxcell/devel' into next/develOlof Johansson
* picoxcell/devel: (1 commit) ARM: picoxcell: implement watchdog restart
2011-12-18ARM: 7205/2: sched_clock: allow sched_clock to be selected at runtimeMarc Zyngier
sched_clock() is yet another blocker on the road to the single image. This patch implements an idea by Russell King: http://www.spinics.net/lists/linux-omap/msg49561.html Instead of asking the platform to implement both sched_clock() itself and the rollover callback, simply register a read() function, and let the ARM code care about sched_clock() itself, the conversion to ns and the rollover. sched_clock() uses this read() function as an indirection to the platform code. If the platform doesn't provide a read(), the code falls back to the jiffy counter (just like the default sched_clock). This allow some simplifications and possibly some footprint gain when multiple platforms are compiled in. Among the drawbacks, the removal of the *_fixed_sched_clock optimization which could negatively impact some platforms (sa1100, tegra, versatile and omap). Tested on 11MPCore, OMAP4 and Tegra. Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Colin Cross <ccross@android.com> Cc: Erik Gilling <konkers@android.com> Cc: Olof Johansson <olof@lixom.net> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Alessandro Rubini <rubini@unipv.it> Cc: STEricsson <STEricsson_nomadik_linux@list.st.com> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Ben Dooks <ben-linux@fluff.org> Tested-by: Jamie Iles <jamie@jamieiles.com> Tested-by: Tony Lindgren <tony@atomide.com> Tested-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Krzysztof Halasa <khc@pm.waw.pl> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-12-08ARM: OMAP1: Always reprogram dpll1 rate at bootJanusz Krzysztofik
DPLL1 reprogramming to a different rate is actually blocked inside omap1_select_table_rate(). However, it is already forced at boot, for boards which boot at unusable clock rates, and this seems to work correctly. OTOH, we now have a fine, run time performed clock selection algorithm implemented, which prevents less powerfull SoCs from being overclocked unintentionally. Allow reprogramming of dpll1 by default, and use it for switching to the higest supported clock rate with all boards, including those already booting at a usable rate of 60 MHz or above. Created against linux-omap/master tip as of Thu Dec 1, commit f83c2a8cbb59981722d1ab610c79adfd034a2667. Requires the just submitted patch "ARM: OMAP1: Move dpll1 rates selection from config to runtime" to prevent from unintentional overclocking. Tested on Amstrad Delta. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-08ARM: OMAP1: Update dpll1 default rate reprogramming methodJanusz Krzysztofik
According to comments in omap1_select_table_rate(), reprogramming dpll1 is tricky, and should always be done from SRAM. While being at it, move OMAP730 special case handling inside omap_sram_reprogram_clock(). Created on top of version 2 of the series "ARM: OMAP1: Fix dpll1 reprogramming related issues", which it depends on. Tested on Amstrad Delta. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-08ARM: OMAP1: Move dpll1 rates selection from config to runtimeJanusz Krzysztofik
For still better multi-OMAP1 support, expand omap1_rate_table with flags for different SoC types and match them while selecting clock rates. The idea is stolen from current omap24xx clock rate selection algorithm. Since clkdev platform flag definitions are reused here, those had to be expanded with one extra entry for OMAP1710 subtype, as this is the only SoC for which we allow selection of the highest, 216 MHz rate. Once done, remove no longer needed clock rate configure time options. Tested on Amstrad Delta. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-05Merge branch 'vmalloc' of git://git.linaro.org/people/nico/linux into ↵Russell King
devel-stable
2011-12-05Merge branch 'for-rmk' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into devel-stable Conflicts: arch/arm/common/gic.c arch/arm/plat-omap/include/plat/common.h
2011-12-05ARM: OMAP1: recalculate loops per jiffy after dpll1 reprogramJanusz Krzysztofik
Otherwise timing is inaccurate, resulting in devices which depend on it, like omap-keypad, broken. Tested on Amstrad Delta. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> [tony@atomide.com: removed comment referencing a development branch] Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-01ARM: OMAP1: Fix ckctl value used for dpll1 defualt rateJanusz Krzysztofik
Use the exact value found in omap1_rate_table, otherwise I have been experiencing issues with correct timekeeping on my Amstrad Delta. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> [tony@atomide.com: removed comment referencing a development branch] Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-01ARM: OMAP1: Fix reprogramming of DPLL1 for systems that boot at rates below ↵Tony Lindgren
60MHz Commit e9b7086b80c4d9e354f4edc9e280ae85a60df408 (ARM: OMAP: Fix reprogramming of dpll1 rate) fixed a regression for systems that did not rely on bootloader set rates. However, it also introduced a new problem where the rates selected in .config would not take affect as omap1_select_table_rate currently refuses to reprogram DPLL1 if it's already initialized. This was not a problem earlier, as the reprogramming was done earlier with ck_dpll1_p->rate uninitialized. Fix this by forcing the reprogramming on systems booting at rates below 60MHz. Note that the long term fix is to make the rates SoC specific later on. Thanks for Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> for figuring this one out. Reported-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>