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* Merge tag 'cleanup2' of ↵Linus Torvalds2012-05-2618-217/+266
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull arm-soc cleanups (part 2) from Olof Johansson: "More cleanups, continuing an earlier set with omap and samsung specific cleanups. These could not go into the first set because they have dependencies on various other series that in turn depend on the first cleanups." Fixed up conflicts in arch/arm/plat-omap/counter_32k.c due to commit bd0493eaaf5c: "move read_{boot,persistent}_clock to the architecture level" that changed how the persistent clocks were handled. And trivial conflicts in arch/arm/mach-omap1/common.h due to just independent changes close to each other. * tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (35 commits) ARM: SAMSUNG: merge plat-s5p into plat-samsung ARM: SAMSUNG: move options for common s5p into plat-samsung/Kconfig ARM: SAMSUNG: move setup code for s5p mfc and mipiphy into plat-samsung ARM: SAMSUNG: move platform device for s5p uart into plat-samsung ARM: SAMSUNG: move hr timer for common s5p into plat-samsung ARM: SAMSUNG: move pm part for common s5p into plat-samsung ARM: SAMSUNG: move interrupt part for common s5p into plat-samsung ARM: SAMSUNG: move clock part for common s5p into plat-samsung ARM: S3C24XX: Use common macro to define resources on dev-uart.c ARM: S3C24XX: move common clock init into common.c ARM: S3C24XX: move common power-management code to mach-s3c24xx ARM: S3C24XX: move plat-s3c24xx/dev-uart.c into common.c ARM: S3C24XX: move plat-s3c24xx/cpu.c ARM: OMAP2+: Kconfig: convert SOC_OMAPAM33XX to SOC_AM33XX ARM: OMAP2+: Kconfig: convert SOC_OMAPTI81XX to SOC_TI81XX GPMC: add ECC control definitions ARM: OMAP2+: dmtimer: remove redundant sysconfig context restore ARM: OMAP: AM35xx: convert 3517 detection/flags to AM35xx ARM: OMAP: AM35xx: remove redunant cpu_is checks for AM3505 ARM: OMAP1: Pass dma request lines in platform data to MMC driver ...
| * Merge tag 'omap-cleanup-timer-for-v3.5' of ↵Olof Johansson2012-05-111-25/+93
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup2 Timer changes to make it easier to support various SoCs By Vaibhav Hiremath via Tony Lindgren * tag 'omap-cleanup-timer-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP: Make OMAP clocksource source selection using kernel param ARM: OMAP2+: Replace space with underscore in the name field of system timers ARM: OMAP1: Add checks for possible error condition in timer_init
| | * ARM: OMAP: Make OMAP clocksource source selection using kernel paramVaibhav Hiremath2012-05-091-22/+90
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current OMAP code supports couple of clocksource options based on compilation flag (CONFIG_OMAP_32K_TIMER). The 32KHz sync-timer and a gptimer which can run on 32KHz or system clock (e.g 38.4 MHz). So there can be 3 options - 1. 32KHz sync-timer 2. Sys_clock based (e.g 13/19.2/26/38.4 MHz) gptimer 3. 32KHz based gptimer. The optional gptimer based clocksource was added so that it can give the high precision than sync-timer, so expected usage was 2 and not 3. Unfortunately option 2, clocksource doesn't meet the requirement of free-running clock as per clocksource need. It stops in low power states when sys_clock is cut. That makes gptimer based clocksource option useless for OMAP2/3/4 devices with sys_clock as a clock input. So, in order to use option 2, deeper idle state MUST be disabled. Option 3 will still work but it is no better than 32K sync-timer based clocksource. We must support both sync timer and gptimer based clocksource as some OMAP based derivative SoCs like AM33XX does not have the sync timer. Considering above, make sync-timer and gptimer clocksource runtime selectable so that both OMAP and AMXXXX continue to use the same code. And, in order to precisely configure/setup sched_clock for given clocksource, decision has to be made early enough in boot sequence. So, the solution is, Use standard kernel parameter ("clocksource=") to override default 32k_sync-timer, in addition to this, we also use hwmod database lookup mechanism, through which at run-time we can identify availability of 32k-sync timer on the device, else fall back to gptimer. Also, moved low-level SoC specific init code to respective files, (mach-omap1/timer32k.c and mach-omap2/timer.c) Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Kevin Hilman <khilman@ti.com> Tested-by: Kevin Hilman <khilman@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tarun Kanti DebBarma <tarun.kanti@ti.com> Cc: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Replace space with underscore in the name field of system timersVaibhav Hiremath2012-05-091-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Depending on the bootloader, passing command-line arguments with spaces may have issues. Some bootloaders doesn't seem to pass along the quotes, passing only 'gp' part of the string, which leads to wrong override configuration. The only affected kernel parameter configuration for OMAP family is "clocksource=", used to override kernel clocksource. So this patch changes "gp timer" => "gp_timer", for clockevent, clocksource and timer irq_handler. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Acked-by: Kevin Hilman <khilman@ti.com> Tested-by: Kevin Hilman <khilman@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | Merge tag 'omap-cleanup-devices-for-v3.5' of ↵Olof Johansson2012-05-1132-119/+658
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup2 Changes to split plat-omap/devices.c into mach-omap1 and mach-omap2 except for the RNG driver that will be done later on. As this depends on omap-devel-hwmod-data-for-v3.5 and causes merge conflict with omap-fixes-non-critical-for-v3.5, this branch is based on merge of the two. By Tony Lindgren (7) and others via Tony Lindgren (4) and Paul Walmsley (1) * tag 'omap-cleanup-devices-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (27 commits) ARM: OMAP1: Pass dma request lines in platform data to MMC driver ARM: OMAP: Move omap_mmc_add() to mach-omap1 ARM: OMAP2: Use hwmod to initialize mmc for 2420 ARM: OMAP2+: Move omap_dsp_reserve_sdram_memblock() to mach-omap2 ARM: OMAP1: Move omap_init_uwire to mach-omap1 ARM: OMAP1: Move omap_init_audio() to keep the devices in alphabetical order ARM: OMAP2+: WDTIMER integration: fix !PM boot crash, disarm timer after hwmod reset ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database ARM: OMAP4: hwmod_data: Name the common irq for McBSP ports ARM: OMAP4: hwmod data: I2C: add flag for context restore ARM: OMAP3: hwmod_data: Rename the common irq for McBSP ports ARM: OMAP2xxx: hwmod data: add HDQ/1-wire hwmod ARM: OMAP3: hwmod data: add HDQ/1-wire hwmod ARM: OMAP2+: hwmod data: add HDQ/1-wire hwmod shared data ARM: OMAP2+: HDQ1W: add custom reset function ARM: OMAP2420: hwmod data: Add MMC hwmod data for 2420 arm: omap3: clockdomain data: Remove superfluous commas from gfx_sgx_3xxx_wkdeps[] ARM: OMAP2+: powerdomain: Get rid off duplicate pwrdm_clkdm_state_switch() API ARM: OMAP3: clock data: add clockdomain for HDQ functional clock ARM: OMAP3+: dpll: Configure autoidle mode only if it's supported ...
| | * | ARM: OMAP2: Use hwmod to initialize mmc for 2420Tony Lindgren2012-05-091-3/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows us to pass dma request lines in platform data to MMC driver the same way as we already do for omap2430 and later. Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | ARM: OMAP2+: Move omap_dsp_reserve_sdram_memblock() to mach-omap2Tony Lindgren2012-05-091-2/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This hardware exists only on 2430 and later omaps, so there's no need to have it in plat-omap/devices.c. Note that we don't have any users for exported omap_dsp_get_mempool_base(), so we can make it static. Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | Merge branch 'fixes-non-critical' into cleanup-devicesTony Lindgren2012-05-0913-252/+137Star
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| * | | Merge tag 'omap-cleanup-renames-for-v3.5' of ↵Olof Johansson2012-05-1111-120/+91Star
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup2 Simplify some SoC config options before things get too unreadable. Note that this depends on a fix in omap-fixes-non-critical-for-v3.5, so it's based on that. By Kevin Hilman (3) and others via Tony Lindgren * tag 'omap-cleanup-renames-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: Kconfig: convert SOC_OMAPAM33XX to SOC_AM33XX ARM: OMAP2+: Kconfig: convert SOC_OMAPTI81XX to SOC_TI81XX ARM: OMAP: igep0020: Specify the VPLL2 regulator unconditionally ARM: OMAP2+: INTC: fix Kconfig option for TI81XX ARM: OMAP2+: remove incorrect irq_chip ack field ARM: OMAP4: Adding ID for OMAP4460 ES1.1 ARM: OMAP4: panda: add statics to remove warnings ARM: OMAP2+: Incorrect Register Offsets in OMAP Mailbox ARM: OMAP: fix trivial warnings for dspbridge ARM: OMAP4: hsmmc: check for null pointer ARM: OMAP1: fix compilation issue in board-sx1.c
| | * | | ARM: OMAP2+: Kconfig: convert SOC_OMAPAM33XX to SOC_AM33XXKevin Hilman2012-05-103-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No need to have an OMAP prefix on these SoCs that are in the family but arent' really called OMAP. Simple rename: CONFIG_SOC_OMAPAM33XX --> CONFIG_SOC_AM33XX No functional change. Signed-off-by: Kevin Hilman <khilman@ti.com> Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> [tony@atomide.com: updated for the driver config change also] Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | ARM: OMAP2+: Kconfig: convert SOC_OMAPTI81XX to SOC_TI81XXKevin Hilman2012-05-104-7/+7
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No need to have an OMAP prefix on these SoCs that are in the family but arent' really called OMAP. Simple rename: CONFIG_SOC_OMAPTI81XX --> CONFIG_SOC_TI81XX No functional change. Signed-off-by: Kevin Hilman <khilman@ti.com> Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | GPMC: add ECC control definitionsYegor Yefremov2012-05-101-7/+23
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | ARM: OMAP: AM35xx: convert 3517 detection/flags to AM35xxKevin Hilman2012-05-106-12/+11Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently cpu_is_omap3517() actually detects any device in the AM35x family (3517 and no-SGX version 3505.) To make it more clear what is being detected, convert the names from 3517 to AM35xx. This adds a new soc_is_am35xx() which duplicates the cpu_is_omap3517(). In order to avoid cross-tree dependencies with clock-tree changes, cpu_is_omap3517() is left until the clock changes are merged, at which point cpu_is_omap3517() will be completely removed. Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> Tested-by: Vaibhav Hiremath <hvaibhav@ti.com> Tested-by: Mark A. Greer <mgreer@animalcreek.com> Signed-off-by: Kevin Hilman <khilman@ti.com> [tony@atomide.com: change to use soc_is_omap instead] Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | ARM: OMAP: AM35xx: remove redunant cpu_is checks for AM3505Kevin Hilman2012-05-103-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are several checks for AM35x devices done using if (cpu_is_omap3517() || cpu_is_omap3505()) However, since the 3505 is just a 3517 without an SGX, the 3505 check is redundant because cpu_is_omap3517() will always be true whenever cpu_is_omap3505() is true. From <plat/cpu.h>: #define cpu_is_omap3505() (cpu_is_omap3517() && !omap3_has_sgx()) Therefore, remove the redunant 3505 checks. This helps move towards removal of SoC detection that depends on specific IP detection. Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> Tested-by: Vaibhav Hiremath <hvaibhav@ti.com> Tested-by: Mark A. Greer <mgreer@animalcreek.com> Signed-off-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | Merge branch 'cleanup-soc' into cleanupTony Lindgren2012-05-105-157/+87Star
| |\ \ \ | | | | | | | | | | | | | | | | | | | | Conflicts: arch/arm/mach-omap2/Makefile
| | * | | ARM: OMAP2+: dma: Define dma capabilities register bitfields and use them.R Sricharan2012-05-081-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The system dma module has capabiities register indicating the support for descriptor loading, constant fill, etc. Use this instead of OMAP revision check to identify the features supported runtime. This avoids patching the code for feature SOCs which has those capabilities. Signed-off-by: R Sricharan <r.sricharan@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
| | * | | ARM: OMAP4: Reduce the static IO mappingSantosh Shilimkar2012-05-082-58/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | EMIF, GMPC and DMM driver can ioremap() the address space as part of driver intialisation and there is no need to have static IO mapping for them. Hence remove the un-used static IP space and let the respective drivers manage it as part if driver init. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
| | * | | ARM: OMAP4: Remove un-used WakeupGen register defines.Santosh Shilimkar2012-05-081-8/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current OMAP code doesn't use any of the OMAP_WKG_ENB_SECURE_* registers. So remove those defines. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
| | * | | ARM: OMAP2+: Clean up wrapping multiple objects in MakefileSantosh Shilimkar2012-05-081-82/+78Star
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
| | * | | ARM: OMAP4: Don't compile cm2xxx_3xxx.c for OMAP4 only builds.Santosh Shilimkar2012-05-081-4/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since OMAP4 code base now makes use of OMAP4 specific PRCM functions, cm2xxx_3xxx.c need not be compiled for OMAP4 only builds. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com>
| * | | | Merge branch 'devel-hwmod' into cleanupTony Lindgren2012-05-0814-7835/+7031Star
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* | | | | Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2012-05-241-1/+2
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull GPIO driver changes from Grant Likely: "Lots of gpio changes, both to core code and drivers. Changes do touch architecture code to remove the need for separate arm/gpio.h includes in most architectures. Some new drivers are added, and a number of gpio drivers are converted to use irq_domains for gpio inputs used as interrupts. Device tree support has been amended to allow multiple gpio_chips to use the same device tree node. Remaining changes are primarily bug fixes." * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: (33 commits) gpio/generic: initialize basic_mmio_gpio shadow variables properly gpiolib: Remove 'const' from data argument of gpiochip_find() gpio/rc5t583: add gpio driver for RICOH PMIC RC5T583 gpiolib: quiet gpiochip_add boot message noise gpio: mpc8xxx: Prevent NULL pointer deref in demux handler gpio/lpc32xx: Add device tree support gpio: Adjust of_xlate API to support multiple GPIO chips gpiolib: Implement devm_gpio_request_one() gpio-mcp23s08: dbg_show: fix pullup configuration display Add support for TCA6424A gpio/omap: (re)fix wakeups on level-triggered GPIOs gpio/omap: fix broken context restore for non-OFF mode transitions gpio/omap: fix missing check in *_runtime_suspend() gpio/omap: remove cpu_is_omapxxxx() checks from *_runtime_resume() gpio/omap: remove suspend/resume callbacks gpio/omap: remove retrigger variable in gpio_irq_handler gpio/omap: remove saved_wakeup field from struct gpio_bank gpio/omap: remove suspend_wakeup field from struct gpio_bank gpio/omap: remove saved_fallingdetect, saved_risingdetect gpio/omap: remove virtual_irq_start variable ... Conflicts: drivers/gpio/gpio-samsung.c
| * | | | | gpio/omap: remove cpu_is_omapxxxx() checks from *_runtime_resume()Tarun Kanti DebBarma2012-05-121-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add register offsets for GPIO_IRQSTATUS_RAW_0, GPIO_IRQSTATUS_RAW_0 which are present on OMAP4+ processors. Now we can distinguish conditions applicable to OMAP4,5 and those specific to OMAP24xx and OMAP3xxx. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Govindraj.R <govindraj.raja@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
| * | | | | gpio/omap: remove virtual_irq_start variableTarun Kanti DebBarma2012-05-121-1/+0Star
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This cleanup got missed while implementing following: 25db711 gpio/omap: Fix IRQ handling for SPARSE_IRQ 384ebe1 gpio/omap: Add DT support to GPIO driver Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Govindraj.R <govindraj.raja@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
* | | | | Merge tag 'tty-3.5-rc1' of ↵Linus Torvalds2012-05-231-8/+0Star
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull TTY updates from Greg Kroah-Hartman: "Here's the big TTY/serial driver pull request for the 3.5-rc1 merge window. Nothing major in here, just lots of incremental changes from Alan and Jiri reworking some tty core things to behave better and to get a more solid grasp on some of the nasty tty locking issues. There are a few tty and serial driver updates in here as well. All of this has been in the linux-next releases for a while with no problems. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'tty-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (115 commits) serial: bfin_uart: Make MMR access compatible with 32 bits bf609 style controller. serial: bfin_uart: RTS and CTS MMRs can be either 16-bit width or 32-bit width. serial: bfin_uart: narrow the reboot condition in DMA tx interrupt serial: bfin_uart: Adapt bf5xx serial driver to bf60x serial4 controller. Revert "serial_core: Update buffer overrun statistics." tty: hvc_xen: NULL dereference on allocation failure tty: Fix LED error return tty: Allow uart_register/unregister/register tty: move global ldisc idle waitqueue to the individual ldisc serial8250-em: Add DT support serial8250-em: clk_get() IS_ERR() error handling fix serial_core: Update buffer overrun statistics. tty: drop the pty lock during hangup cris: fix missing tty arg in wait_event_interruptible_tty call tty/amiserial: Add missing argument for tty_unlock() tty_lock: Localise the lock pty: Lock the devpts bits privately tty_lock: undo the old tty_lock use on the ctty serial8250-em: Emma Mobile UART driver V2 Add missing call to uart_update_timeout() ...
| * \ \ \ \ Merge 3.4-rc4 into tty-nextGreg Kroah-Hartman2012-04-231-8/+0Star
| |\ \ \ \ \ | | |/ / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | This resolves the merge problem with: drivers/tty/serial/pch_uart.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * | | | Merge 3.4-rc3 into tty-nextGreg Kroah-Hartman2012-04-193-93/+0Star
| | |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows us to pick up some changes needed for other serial patches. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * | | | | OMAP2+: UART: Remove cpu checks for populating errata flagsGovindraj.R2012-04-191-8/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the errata is populated based on cpu checks this can be removed and replaced with module version check of uart ip block. MVR reg is provided within the uart reg map use the same to populate the errata and thus now errata population and handling can be managed within the driver itself. Cc: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Govindraj.R <govindraj.raja@ti.com> Reviewed-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | | | | Merge tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-05-2214-52/+276
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull arm-soc board specific changes from Olof Johansson: "While we generally attempt to get rid of board specific files and replace them with device tree based descriptions, a lot of platforms have not come that far: In shmobile, we add two new board files because their recently started effort to add DT support has not proceeded enough to use it for all of the important hardware. In Kirkwood, we are adding support for new boards with a combination of DT and board file contents in multiple cases. pxa/mmp and imx are extending support for existing board files but not adding new ones." Fix up trivial conflicts in arch/arm/mach-{mmp/ttc_dkb.c,shmobile/{Kconfig,Makefile}} * tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (94 commits) ARM: shmobile: fix smp build ARM: kirkwood: Add support for RaidSonic IB-NAS6210/6220 using devicetree kirkwood: Add iconnect support orion/kirkwood: create a generic function for gpio led blinking kirkwood/orion: fix orion_gpio_set_blink ARM: kirkwood: Define DNS-320/DNS-325 NAND in fdt kirkwood: Allow nand to be configured via. devicetree mtd: Add orion_nand devicetree bindings ARM: kirkwood: Basic support for DNS-320 and DNS-325 ARM: mach-shmobile: Use DT_MACHINE for armadillo 800 eva ARM: mach-shmobile: Use DT_MACHINE for KZM9G ARM: pxa: hx4700: Add Synaptics NavPoint touchpad ARM: pxa: Use REGULATOR_SUPPLY macro ARM: mach-shmobile: kzm9g: enable SMP boot ARM: mach-shmobile: kzm9g: defconfig update ARM: mach-shmobile: kzm9g: add PCF8757 gpio-key ARM: mach-shmobile: kzm9g: add SDHI support ARM: mach-shmobile: kzm9g: add MMCIF support ARM: mach-shmobile: kzm9g: correct screen direction ARM: mach-shmobile: sh73a0.h: add GPIO_NR ...
| * \ \ \ \ \ \ Merge branch 'kirkwood_boards_for_v3.5' of ↵Arnd Bergmann2012-05-152-5/+5
| |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.infradead.org/users/jcooper/linux into next/boards * 'kirkwood_boards_for_v3.5' of git://git.infradead.org/users/jcooper/linux: ARM: kirkwood: Add support for RaidSonic IB-NAS6210/6220 using devicetree kirkwood: Add iconnect support orion/kirkwood: create a generic function for gpio led blinking kirkwood/orion: fix orion_gpio_set_blink ARM: kirkwood: Define DNS-320/DNS-325 NAND in fdt kirkwood: Allow nand to be configured via. devicetree mtd: Add orion_nand devicetree bindings ARM: kirkwood: Basic support for DNS-320 and DNS-325 Includes an update to v3.4-rc7 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | | | | OMAP: omap4panda: Use common configuration for V1V8, V2V1 suppliesPeter Ujfalusi2012-05-091-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These supplies going to be needed for the twl6040 driver. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | OMAP: 4430SDP: Use common configuration for V1V8, V2V1 suppliesPeter Ujfalusi2012-05-091-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These supplies going to be needed for the twl6040 driver. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | OMAP4: twl-common: Add twl6030 V1V8, V2V1 SMPS common configurationPeter Ujfalusi2012-05-092-0/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | V1V8 supply from twl6030 commonly used as VIO for the machine. V2V1 is adviced to supply the twl6040, and also to feed the twl6030's VCXIO_IN, and VDAC_IN inputs. Create the common regulator configurations for these regulators: Make the V2V1 as supply_regulator for VCXIO, VDAC. Add twl6040 (1-004b) as consumer for V1V8, and V2V1. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> [tony@atomide.com: updated for the pm regulator changes] Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | ARM: OMAP: Mark Beagleboard-xM MMC bus as 4-bitRuss Dill2012-05-091-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Beagleboard-xM (all revisions) only MMC1_DAT0-MMC1_DAT3 are wired up. Tested on Beagleboard-xM Rev C1 and Beagleboard Rev B4. Signed-off-by: Russ Dill <Russ.Dill@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | Add MSUB support for the LogicPD OMAP3530 DevKitsAshwin Bihari2012-05-091-1/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the OMAP3 MUSB OTG controller to the LogicPD OMAP3530 SOM-LV[1] and Torpedo[2] DevKits [1] - www.logicpd.com/products/system-on-modules/omap35x-som-lv/ [2] - www.logicpd.com/products/system-on-modules/omap35x-torpedo-som/ Signed-off-by: Ashwin Bihari <ashwin.bihari@logicpd.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | ARM: OMAP: rx51: Platform support for lis3lv02d accelerometerAmeya Palande2012-05-091-1/+87
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Platform support for lis3lv02d accelerometer Signed-off-by: Ameya Palande <ameya.palande@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | ARM: OMAP2+: craneboard: register emac deviceMans Rullgard2012-05-091-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the required am35xx_emac_init() call to the craneboard init function. Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | ARM: OMAP4: board-omap4panda: Register platform device for HDMI audio codecRicardo Neri2012-05-091-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add platform device registratation for HDMI audio codec. This is to be able to transmit audio through the HDMI output featured in Pandaboard and PandaboardES boards. Signed-off-by: Ricardo Neri <ricardo.neri@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | ARM: OMAP4: board-4430sdp: Register platform device for HDMI audio codecRicardo Neri2012-05-091-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add platform device registratation for HDMI audio codec. This is to be able to transmit audio through the HDMI output featured in SDP4430 and Blaze boards. Signed-off-by: Ricardo Neri <ricardo.neri@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | ARM: OMAP: devices: Register platform devices for HDMI audioRicardo Neri2012-05-091-0/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add platform registration for the devices HDMI audio support. The omap-hdmi-audio-dai platform device is to be used by the ASoC HDMI CPU DAI driver. The omap-hdmi-audio platform device is to be used by the ASoC HDMI machine driver that links together the ASOC CPU DAI, ASoC plaform and ASoC codec drivers. Signed-off-by: Ricardo Neri <ricardo.neri@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | ARM: OMAP3: igep0020: Add support for Micron NAND Flash storage memoryJavier Martinez Canillas2012-05-091-43/+31Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IGEP-based boards can have two different flash memories, a OneNAND or a NAND device. The boot configuration pins (sys_boot) are used to specify which memory is available. Also, this patch removes unnecesary code for registering the OneNAND. Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org> Acked-by: Enric Balletbo i Serra <eballetbo@gmail.com> Tested-by: Enric Balletbo i Serra <eballetbo@gmail.com> [tony@atomide.com: fixed up a minor checkpatch warning] Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | ARM: OMAP2+: nand: Make board_onenand_init() visible to board codeJavier Martinez Canillas2012-05-092-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | board_onenand_init() and board_nand_init() initialization functions are used to initialize OneNAND and NAND memories respectively. But only board_nand_init() was visible to be used from board code. This patch makes possible to initialize a OneNAND flash memory within platform code. Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org> Acked-by: Enric Balletbo i Serra <eballetbo@gmail.com> Tested-by: Enric Balletbo i Serra <eballetbo@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | ARM: OMAP3: cm-t35: add support for power offIgor Grinberg2012-05-091-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable the power off feature of the TPS65930 on-board PMIC. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | ARM: OMAP: WiLink platform data for the PandaBoardMircea Gherzan2012-05-091-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "uim" deamon requires sysfs entries that are filled in using this platform data. Signed-off-by: Mircea Gherzan <mgherzan@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | ARM: OMAP2PLUS: Enable HIGHMEMSantosh Shilimkar2012-05-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | HIGMEM support in kernel is quite mature now and we have boards like ZOOM, PANDA, SDP where 1 GB memories are installed. With HIGHMEM disabled not all of the 1GB of RAM (only ~700MB) can be accessed. Hence, enable HIGMEM to make use of the entire memory. On the boards which doesn't have more than 768 MB memory, all the memory is directly mapped in "lowmem" and highmem isn't exercised. Hence, there should be no impact by enabling HIGHMEM for boards that do not need it. Tested on OMAP4460 Panda-ES. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com> Tested-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | | | | | | | | Merge tag 'pm' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-05-2237-165/+2201
|\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull arm-soc power management changes from Olof Johansson: "Power management changes here are mostly for the omap platform, but also include cpuidle changes for ux500 and suspend/resume code for mmp." * tag 'pm' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits) ARM: OMAP2+: WDTIMER integration: fix !PM boot crash, disarm timer after hwmod reset ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database ARM: OMAP4: hwmod_data: Name the common irq for McBSP ports ARM: OMAP4: hwmod data: I2C: add flag for context restore ARM: OMAP3: hwmod_data: Rename the common irq for McBSP ports ARM: OMAP2xxx: hwmod data: add HDQ/1-wire hwmod ARM: OMAP3: hwmod data: add HDQ/1-wire hwmod ARM: OMAP2+: hwmod data: add HDQ/1-wire hwmod shared data ARM: OMAP2+: HDQ1W: add custom reset function ARM: OMAP2420: hwmod data: Add MMC hwmod data for 2420 arm: omap3: clockdomain data: Remove superfluous commas from gfx_sgx_3xxx_wkdeps[] ARM: OMAP2+: powerdomain: Get rid off duplicate pwrdm_clkdm_state_switch() API ARM: OMAP3: clock data: add clockdomain for HDQ functional clock ARM: OMAP3+: dpll: Configure autoidle mode only if it's supported ARM: OMAP2+: dmtimer: cleanup iclk usage ARM: OMAP4+: Add prm and cm base init function. ARM: OMAP2/3: Add idle_st bits for ST_32KSYNC timer to prcm-common header ARM: OMAP3: Fix CM register bit masks ARM: OMAP: clock: convert AM3517/3505 detection/flags to AM35xx ARM: OMAP3: clock data: treat all AM35x devices the same ...
| * \ \ \ \ \ \ \ \ Merge tag 'omap-devel-hwmod-data-for-v3.5' of ↵Olof Johansson2012-05-1114-31/+522
| |\ \ \ \ \ \ \ \ \ | | | |_|_|_|_|_|_|/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm Data changes related to omap hwmod By Paul Walmsley (4) and others via Paul Walmsley (1) and Tony Lindgren (1) * tag 'omap-devel-hwmod-data-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: WDTIMER integration: fix !PM boot crash, disarm timer after hwmod reset ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database ARM: OMAP4: hwmod_data: Name the common irq for McBSP ports ARM: OMAP4: hwmod data: I2C: add flag for context restore ARM: OMAP3: hwmod_data: Rename the common irq for McBSP ports ARM: OMAP2xxx: hwmod data: add HDQ/1-wire hwmod ARM: OMAP3: hwmod data: add HDQ/1-wire hwmod ARM: OMAP2+: hwmod data: add HDQ/1-wire hwmod shared data ARM: OMAP2+: HDQ1W: add custom reset function ARM: OMAP2420: hwmod data: Add MMC hwmod data for 2420
| | * | | | | | | | Merge tag 'omap-devel-c-for-3.5' of ↵Tony Lindgren2012-05-0914-31/+522
| | |\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-hwmod-data Some OMAP IP block data additions for 3.5, along with a fix for a longstanding watchdog timer integration problem.
| | | * | | | | | | | ARM: OMAP2+: WDTIMER integration: fix !PM boot crash, disarm timer after ↵Kevin Hilman2012-05-096-20/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hwmod reset Without runtime PM enabled, hwmod needs to leave all IP blocks in an enabled state by default so any driver access to the HW will succeed. This is accomplished by seting the postsetup_state to enabled for all hwmods during init when runtime PM is disabled. Currently, we have a special case for WDT in that its postsetup_state is always set to disabled. This is done so that the WDT is disabled and the timer is disarmed at boot in case there is no WDT driver. This also means that when runtime PM is disabled, if a WDT driver *is* built in the kernel, the kernel will crash on the first access to the WDT hardware. We can't simply leave the WDT module enabled, because the timer is armed by default after reset. That means that if there is no WDT driver initialzed or loaded before the timer expires, the kernel will reboot. To fix this, a custom reset method is added to the watchdog class of omap_hwmod. This method will *always* disarm the timer after hwmod reset. The WDT timer then will only be rearmed when/if the driver is loaded for the WDT. With the timer disarmed by default, we no longer need a special-case for the postsetup_state of WDT during init, so it is removed. Any platforms wishing to ensure the watchdog remains armed across the entire boot boot can simply disable the reset-on-init feature of the watchdog hwmod using omap_hwmod_no_setup_reset(). Tested on 3530/Overo, 4430/Panda. NOTE: on 4430, the hwmod OCP reset does not seem to rearm the timer as documented in the TRM (and what happens on OMAP3.) I noticed this because testing the HWMOD_INIT_NO_RESET feature with no driver loaded, I expected a reboot part way through the boot, but did not see a reboot. Adding some debug to read the counter, I verified that right after OCP softreset, the counter is not firing. After writing the magic start sequence, the timer starts counting. This means that the timer disarm sequence added here does not seem to be needed for 4430, but is technically the correct way to ensure the timer is disarmed, so it is left in for OMAP4. Special thanks to Paul Walmsley for helping brainstorm ideas to fix this problem. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kevin Hilman <khilman@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> [paul@pwsan.com: updated the omap2_wd_timer_reset() function in the wake of commit 3c55c1baffa5f719eb2ae9729088bc867f972f53 ("ARM: OMAP2+: hwmod: Revert "ARM: OMAP2+: hwmod: Make omap_hwmod_softreset wait for reset status""); added kerneldoc; rolled in warning fix from Kevin] Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | | * | | | | | | | ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod databaseVaibhav Hiremath2012-05-095-0/+112
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add 32k-sync timer hwmod-data and add ocp_if details to omap2 & 3 hwmod table. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>