1. 23 8月, 2011 1 次提交
  2. 10 8月, 2011 5 次提交
    • H
      omap: timer: Set dmtimer used as clocksource in autoreload mode · e9d0b97e
      Hemant Pedanekar 提交于
      If CONFIG_OMAP_32K_TIMER is not selected and dmtimer is used as clocksource, the
      timer stops counting once overflow occurs as it was not set in autoreload mode.
      This results into timekeeping failure: for example, 'sleep 1' at the shell after
      the timer counter overflow would hang.
      
      This patch sets up autoreload when starting the clocksource timer which fixes
      the above issue.
      Signed-off-by: NHemant Pedanekar <hemantp@ti.com>
      Signed-off-by: NTony Lindgren <tony@atomide.com>
      e9d0b97e
    • J
      OMAP3: am3517crane: remove NULL board_mux from board file · 133e6b55
      Johan Hovold 提交于
      Since 7203f8a4 (arm: mach-omap2: remove
      NULL board_mux from board files) NULL board_mux is defined in mux.h.
      Signed-off-by: NJohan Hovold <jhovold@gmail.com>
      Signed-off-by: NTony Lindgren <tony@atomide.com>
      133e6b55
    • T
      arm: mach-omap2: mux: use kstrdup() · dccb3b0e
      Thomas Meyer 提交于
      Use kstrdup rather than duplicating its implementation
      
      The semantic patch that makes this output is available
      in scripts/coccinelle/api/kstrdup.cocci.
      
      More information about semantic patching is available at
      http://coccinelle.lip6.fr/Signed-off-by: NThomas Meyer <thomas@m3y3r.de>
      Signed-off-by: NTony Lindgren <tony@atomide.com>
      dccb3b0e
    • P
      OMAP: hwmod: fix build break on non-OMAP4 multi-OMAP2 builds · c9a48c2a
      Paul Walmsley 提交于
      Builds for multi-OMAP2 (e.g., OMAP2420 with OMAP2430) with
      CONFIG_ARCH_OMAP4=n fail with the following errors:
      
      arch/arm/mach-omap2/built-in.o: In function `_enable_module':
      arch/arm/mach-omap2/omap_hwmod.c:701: undefined reference to `omap4_cminst_module_enable'
      arch/arm/mach-omap2/built-in.o: In function `_disable_module':
      arch/arm/mach-omap2/omap_hwmod.c:726: undefined reference to `omap4_cminst_module_disable'
      arch/arm/mach-omap2/built-in.o: In function `_wait_target_disable':
      arch/arm/mach-omap2/omap_hwmod.c:1179: undefined reference to `omap4_cminst_wait_module_idle'
      
      This is probably due to the preprocessor directives in
      arch/arm/plat-omap/include/plat/cpu.h that convert some cpu_is_omap*()
      expressions from preprocessor directives into something that is only
      resolvable during runtime, if multiple OMAP2 build targets are
      selected.
      
      Thanks to Tony Lindgren <tony@atomide.com> for reporting.
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      Signed-off-by: NTony Lindgren <tony@atomide.com>
      c9a48c2a
    • P
      OMAP: Fix linking error in twl-common.c for OMAP2/3/4 only builds · d12d1fca
      Peter Ujfalusi 提交于
      Commit b22f954b (OMAP4: Move common twl6030 configuration to twl-common)
      caused compile failures for code for OMAP arch which is not selected by
      the config.
      
      Fixes issues like:
      With CONFIG_ARCH_OMAP3=y and CONFIG_ARCH_OMAP4=n, I'm getting this:
      
      arch/arm/mach-omap2/built-in.o:(.data+0xf99c): undefined reference to `omap4430_phy_init'
      arch/arm/mach-omap2/built-in.o:(.data+0xf9a0): undefined reference to `omap4430_phy_exit'
      arch/arm/mach-omap2/built-in.o:(.data+0xf9a4): undefined reference to `omap4430_phy_power'
      arch/arm/mach-omap2/built-in.o:(.data+0xf9a8): undefined reference to `omap4430_phy_set_clk'
      arch/arm/mach-omap2/built-in.o:(.data+0xf9ac): undefined reference to `omap4430_phy_suspend'
      
      Fix the problem by moving the code to ifdef sections for omap3 and omap4.
      Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
      [tony@atomide.com: updated comments]
      Signed-off-by: NTony Lindgren <tony@atomide.com>
      d12d1fca
  3. 06 8月, 2011 4 次提交
    • C
      OMAP2+: PM: SmartReflex: use put_sync_suspend for IRQ-safe disabling · 98333b3d
      Colin Cross 提交于
      omap_sr_disable_reset_volt is called with irqs off in omapx_enter_sleep,
      as part of idle sequence, this eventually calls sr_disable and
      pm_runtime_put_sync. pm_runtime_put_sync calls rpm_idle, which will
      enable interrupts in order to call the callback. In this short interval
      when interrupts are enabled, scenarios such as the following can occur:
      while interrupts are enabled, the timer interrupt that is supposed to
      wake the device out of idle occurs and is acked, so when the CPU finally
      goes to off, the timer is already gone, missing a wakeup event.
      
      Further, as the documentation for runtime states:"
       However, subsystems can use the pm_runtime_irq_safe() helper function
       to tell the PM core that a device's ->runtime_suspend() and ->runtime_resume()
       callbacks should be invoked in atomic context with interrupts disabled
       (->runtime_idle() is still invoked the default way)."
      
      Hence, replace pm_runtime_put_sync with pm_runtime_put_sync_suspend
      to invoke the suspend handler and shut off the fclk for SmartReflex
      module instead of using the idle handler in interrupt disabled context.
      Signed-off-by: NNishanth Menon <nm@ti.com>
      Signed-off-by: NColin Cross <ccross@google.com>
      [khilman@ti.com: minor Subject edits]
      Signed-off-by: NKevin Hilman <khilman@ti.com>
      98333b3d
    • K
      OMAP3: beagle: don't touch omap_device internals · 8c7f6594
      Kevin Hilman 提交于
      Board code should not touch omap_device internals.  To get the MPU/IVA devices,
      use existing APIs: omap2_get_mpu_device(), omap2_get_iva_device().
      Signed-off-by: NKevin Hilman <khilman@ti.com>
      8c7f6594
    • N
      OMAP3+: SR: ensure pm-runtime callbacks can be invoked with IRQs disabled · e13d8f38
      Nishanth Menon 提交于
      SmartReflex should be disabled while entering low power mode due to
      a) SmartReflex values are not defined for retention voltage, further
      b) with SmartReflex enabled, if CPU enters lower c-states, FSM will try
      to bump the voltage to current OPP's voltage for which it has entered c-state;
      hence SmartReflex needs to be disabled for MPU, CORE and IVA voltage
      domains in idle path before enabling auto retention voltage achievement
      on the device.
      
      However, since the current pm_runtime setup for SmartReflex devices are
      setup to allow callbacks to be invoked with interrupts enabled, calling
      SmartReflex enable/disable from other contexts such as idle paths
      where preemption is disabled causes warnings such as the following
      indicating of a potential race.
      [   82.023895] [<c04d079c>] (__irq_svc+0x3c/0x120) from [<c04d0484>] (_raw_spin_unlock_irq+0x28/0x2c)
      [   82.023895] [<c04d0484>] (_raw_spin_unlock_irq+0x28/0x2c) from [<c0323234>] (rpm_callback+0x4c/0x68)
      [   82.023956] [<c0323234>] (rpm_callback+0x4c/0x68) from [<c0323f7c>] (rpm_resume+0x338/0x53c)
      [   82.023956] [<c0323f7c>] (rpm_resume+0x338/0x53c) from [<c03243f4>] (__pm_runtime_resume+0x48/0x60)
      [   82.023986] [<c03243f4>] (__pm_runtime_resume+0x48/0x60) from [<c008aee0>] (sr_enable+0xa8/0x19c)
      [   82.023986] [<c008aee0>] (sr_enable+0xa8/0x19c) from [<c008b2fc>] (omap_sr_enable+0x50/0x90)
      [   82.024017] [<c008b2fc>] (omap_sr_enable+0x50/0x90) from [<c00888c0>] (omap4_enter_sleep+0x138/0x168)
      
      Instead, we use pm_runtime_irq_safe to tell the PM core that callbacks can be
      invoked in interrupt disabled contexts.
      Acked-by: NRajendra Nayak <rnayak@ti.com>
      Signed-off-by: NNishanth Menon <nm@ti.com>
      [khilman@ti.com: minor changelog edits]
      Signed-off-by: NKevin Hilman <khilman@ti.com>
      e13d8f38
    • K
      OMAP2+: Kconfig: don't select PM in OMAP2PLUS_TYPICAL · 44e51b29
      Kevin Hilman 提交于
      CONFIG_PM is no longer a user-selectable Kconfig option.  Rather it is
      automatically enabled if either CONFIG_SUSPEND or CONFIG_RUNTIME_PM is
      enabled, so having a 'select PM' here is redunant when 'select
      CONFIG_PM_RUNTIME' is present.
      Signed-off-by: NKevin Hilman <khilman@ti.com>
      44e51b29
  4. 28 7月, 2011 1 次提交
  5. 25 7月, 2011 4 次提交
  6. 20 7月, 2011 1 次提交
  7. 13 7月, 2011 1 次提交
  8. 10 7月, 2011 23 次提交
    • R
      OMAP2+: hwmod: Follow the recommended PRCM module enable sequence · 665d0013
      Rajendra Nayak 提交于
      On OMAP4, the PRCM recommended sequence for enabling
      a module after power-on-reset is:
      -1- Force clkdm to SW_WKUP
      -2- Enabling the clocks
      -3- Configure desired module mode to "enable" or "auto"
      -4- Wait for the desired module idle status to be FUNC
      -5- Program clkdm in HW_AUTO(if supported)
      
      This sequence applies to all older OMAPs' as well,
      however since they use autodeps, it makes sure that
      no clkdm is in IDLE, and hence not requiring a force
      SW_WKUP when a module is being enabled.
      
      OMAP4 does not need to support autodeps, because
      of the dyanamic dependency feature, wherein
      the HW takes care of waking up a clockdomain from
      idle and hence the module, whenever an interconnect
      access happens to the given module.
      
      Implementing the sequence for OMAP4 requires
      the clockdomain handling that is currently done in
      clock framework to be done as part of hwmod framework
      since the step -4- above to "Wait for the desired
      module idle status to be FUNC" is done as part of
      hwmod framework.
      Signed-off-by: NRajendra Nayak <rnayak@ti.com>
      [b-cousson@ti.com: Adapt it to the new clkdm hwmod attribute and API]
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      [paul@pwsan.com: dropped mach-omap2/clock.c changes; modified to only
       call the clockdomain code if oh->clkdm is set; disable clock->clockdomain
       interaction on OMAP4]
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      665d0013
    • P
      OMAP2+: clock: allow per-SoC clock init code to prevent clockdomain calls from clock code · 12706c54
      Paul Walmsley 提交于
      The OMAP2/3 clock code was written to notify the clockdomain code when
      the first clock in a clockdomain is enabled and when the last enabled
      clock in a clockdomain is disabled.  OMAP4 requires a different
      approach: the hwmod code needs to signal the clockdomain code when to
      force-enable and auto-idle a clockdomain during the IP block enable
      process.  The current conjecture is that once that hwmod sequence is
      implemented, it will no longer be necessary for the clock code to call
      into the clockdomain code for "optional clocks" on OMAP4.
      
      Add a static flag to the OMAP2+ clock code, clkdm_control, that by
      default preserves the OMAP2/3 behavior.  Also add a function,
      omap2_clk_disable_clkdm_control(), intended to be called from OMAP4
      and beyond clock initcalls, that disables the old behavior.
      
      Part of this patch was originally based on a patch by Rajendra Nayak
      <rnayak@ti.com>.
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      Cc: Benoît Cousson <b-cousson@ti.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      
      
      12706c54
    • R
      OMAP2+: clockdomain: Add per clkdm lock to prevent concurrent state programming · 555e74ea
      Rajendra Nayak 提交于
      Since the clkdm state programming is now done from within the hwmod
      framework (which uses a per-hwmod lock) instead of the being done
      from the clock framework (which used a global lock), there is now a
      need to have per-clkdm locking to prevent races between different
      hwmods/modules belonging to the same clock domain concurrently
      programming the clkdm state.
      Signed-off-by: NRajendra Nayak <rnayak@ti.com>
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      555e74ea
    • R
      OMAP2+: PM: idle clkdms only if already in idle · b86cfb52
      Rajendra Nayak 提交于
      The omap_set_pwrdm_state function forces clockdomains
      to idle, without checking the existing idle state
      programmed, instead based solely on the HW capability
      of the clockdomain to support idle.
      This is wrong and the clockdomains should be idled
      post a state_switch *only* if idle transitions on the
      clockdomain were already enabled.
      Signed-off-by: NRajendra Nayak <rnayak@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Acked-by: NKevin Hilman <khilman@ti.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      b86cfb52
    • P
      OMAP2+: clockdomain: add clkdm_in_hwsup() · 32a363c0
      Paul Walmsley 提交于
      Add a new function, clkdm_in_hwsup(), that returns true if a clockdomain
      is configured for hardware-supervised idle.  It does not actually read the
      hardware; rather, it checks an internal flag in the struct clockdomain, which
      is changed when the clockdomain is switched in and out of hardware-supervised
      idle.  This should be safe, since all changes to the idle mode should
      pass through the clockdomain code.
      
      Based on a set of patches by Rajendra Nayak <rnayak@ti.com> which do
      the same thing by checking the hardware bits.  This approach should be
      faster and more compact.
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      Cc: Todd Poynor <toddpoynor@google.com>
      Cc: Benoît Cousson <b-cousson@ti.com>
      32a363c0
    • B
      OMAP2+: clockdomain: Add 2 APIs to control clockdomain from hwmod framework · 113a7413
      Benoit Cousson 提交于
      Duplicate the existing API for clockdomain enable from clock to enable
      a clock domain from hwmod framework.
      This will be needed when the hwmod framework will move from the current
      clock centric approach to the module based approach.
      
      These APIs are returning 0 for the moment for OMAP2 and OMAP3 until
      their hwmods are updated with the clksm attribute.
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Kevin Hilman <khilman@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      113a7413
    • V
      OMAP: clockdomain: Remove redundant call to pwrdm_wait_transition() · a5122ff8
      Vaibhav Bedia 提交于
      The call to pwrdm_wait_transition() in clkdm_clk_enable()
      is redundant since the function pwrdm_clkdm_state_switch()
      which is called next also does the same thing.
      Signed-off-by: NVaibhav Bedia <vaibhav.bedia@ti.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      a5122ff8
    • B
      OMAP4: hwmod: Introduce the module control in hwmod control · 45c38252
      Benoit Cousson 提交于
      Take advantage of the explicit modulemode control to fix
      the way parents clocks are managed.
      A module must be disabled before any parents are disabled.
      That programming model was not possible with the previous
      implementation that was considering a modulemode as a leaf
      clock node managed by the clock fmwk.
      This was leading to bad crash upon disable when the parent
      clock was gated before the module completed its transition
      to idle.
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      45c38252
    • B
      OMAP4: cm: Add two new APIs for modulemode control · 288d6a16
      Benoit Cousson 提交于
      In OMAP4, a new programming model based on module control instead
      of clock control was introduced.
      Expose two APIs to allow the upper layer (omap_hwmod) to control
      the module mode independently of the parent clocks management.
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      [paul@pwsan.com: renamed 'omap4_cm_' fns to 'omap4_cminst_'; cleaned up
       kerneldoc]
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      288d6a16
    • B
      OMAP4: hwmod data: Add modulemode entry in omap_hwmod structure · 03fdefe5
      Benoit Cousson 提交于
      Add a new field to provide the mode supported by the module.
      The mode will control the way mandatory clocks are managed by the PRCM.
      
        0 : Module is temporarily disabled by SW. OCP access to module are stalled.
            Can be used to change timing parameter of GPMC module.
        1 : Module is managed automatically by HW according to clock domain
            transition. A clock domain sleep transition put module into idle.
            A wakeup domain transition put it back into function.
            If CLKTRCTRL=3, any OCP access to module is always granted.
            Module clocks may be gated according to the clock domain state.
        2 : Module is explicitly enabled. Interface clock (if not used for
            functions) may be gated according to the clock domain state.
            Functional clocks are guarantied to stay present. As long as
            in this configuration, power domain sleep transition cannot happen.
      
      Some modules will have a modulemode initialized at 1 (HWCTRL) by default.
      This is the case for interconnect and simple module like GPIO, WDT, MAILBOX.
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      03fdefe5
    • B
      OMAP4: hwmod data: Add PRM context register offset · 27bb00b5
      Benoit Cousson 提交于
      Add a 'context_offs' entry in the prcm.omap4 structure to all
      IPs when applicable.
      The offset will be used to retrieve the per module context lost
      information now available on OMAP4.
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      27bb00b5
    • B
      OMAP4: prm: Remove deprecated functions · ad53ebb7
      Benoit Cousson 提交于
      The new prminst_xxx accessors based on partition and offset
      is now used, so removed all the previous prcm_xxx accessors.
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      [paul@pwsan.com: remove fn prototypes also]
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      ad53ebb7
    • B
      OMAP4: prm: Replace warm reset API with the offset based version · e54433f1
      Benoit Cousson 提交于
      The warm reset function was still using the obsolete API.
      Replace it by the new one and move the file to the proper c file.
      
      Change the function names to stick to the file convention as
      suggested by Paul Walmsley <paul@pwsan.com>:
      prm_xxx -> prminst_xxx
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      e54433f1
    • B
      OMAP4: hwmod: Replace RSTCTRL absolute address with offset macros · eaac329d
      Benoit Cousson 提交于
      The RSTCTRL register was accessed using an absolute address.
      The usage of hardcoded macros to calculate virtual address from physical
      one should be avoided as much as possible.
      The usage of an offset will allow future improvement like migration from
      the current architecture code toward a module driver.
      
      Update prm_xxx accessors, move definition to the proper header file and
      update copyrights.
      Change the s16 register offset parameter to u16.
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      [paul@pwsan.com: use '_prminst_' in function names that are part of the
       prminst44xx.c file]
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      eaac329d
    • B
      OMAP: hwmod: Wait the idle status to be disabled · 11b10341
      Benoit Cousson 提交于
      It is mandatory to wait for a module to be in disabled state before
      potentially disabling source clock or re-asserting a reset.
      
      omap_hwmod_idle and omap_hwmod_shutdown does not wait for
      the module to be fully idle.
      
      Add a cm_xxx accessor to wait the clkctrl idle status to be disabled.
      Fix hwmod_[idle|shutdown] to use this API.
      
      Based on Rajendra's initial patch.
      
      Please note that most interconnects hwmod will return one timeout because
      it is impossible for them to be in idle since the processor is accessing
      the registers though the interconnect.
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Signed-off-by: NRajendra Nayak <rnayak@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Todd Poynor <toddpoynor@google.com>
      [paul@pwsan.com: move cpu_is_*() tests to the top of _wait_target_disable();
       incorporate some feedback from Todd]
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      11b10341
    • B
      OMAP4: hwmod: Replace CLKCTRL absolute address with offset macros · d0f0631d
      Benoit Cousson 提交于
      The CLKCTRL register was accessed using an absolute address.
      The usage of hardcoded macros to calculate virtual address from physical
      one should be avoided as much as possible.
      The usage of a offset will allow future improvement like migration from
      the current architecture code toward a module driver.
      
      Update cm_xxx accessor, move definition to the proper header file and
      update copyrights.
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      Cc: Todd Poynor <toddpoynor@google.com>
      [paul@pwsan.com: renamed 'omap4_cm_' fns to 'omap4_cminst_'; removed empty
       fn prototype section from cm44xx.h; incorporated comments from Todd;
       documented some functions]
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      d0f0631d
    • B
      OMAP2+: hwmod: Init clkdm field at boot time · 6ae76997
      Benoit Cousson 提交于
      At boot time, lookup the clkdm_name to get the clkdm
      structure pointer for further usage.
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      6ae76997
    • B
      OMAP4: hwmod data: Add clock domain attribute · a5322c6f
      Benoit Cousson 提交于
      In OMAP PRCM terminology, the clock domain is defined as a group of IPs
      that share some clocks and most of the time an interface clock.
      Every IP does belong to a clockdomain.
      For the moment the clock domain attribute is affected to a clock node.
      The issue with that approach, is that a clock might or not belong to a
      clock domain. Moreover during module transition, it is up to a module
      to handle properly the clock domain state and not to a clock node.
      
      Create a clkdm_name attribute to provide this information per hwmod.
      
      Populate this attribute for every OMAP4 hwmod entries.
      
      Future cleanup series with remove that information from the OMAP4 clock
      when it is relevant.
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      [paul@pwsan.com: fix the mpuss_clkdm name]
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      a5322c6f
    • R
      OMAP4: clock data: Add missing divider selection for auxclks · ad03f1cb
      Rajendra Nayak 提交于
      On OMAP4 the auxclk nodes (part of SCRM) support both
      divider as well as parent selection.
      Supporting this requires splitting the existing nodes
      (which support only parent selection) into two nodes,
      one for parent and another for divider selection.
      The nodes for parent selection are named auxclk*_src_ck
      and the ones for divider selection as auxclk*_ck.
      Signed-off-by: NRajendra Nayak <rnayak@ti.com>
      [b-cousson@ti.com: Rebase on top of clock cleanup
      and autogen alignement]
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      ad03f1cb
    • B
      OMAP: omap_device: Create clkdev entry for hwmod main_clk · bf1e0776
      Benoit Cousson 提交于
      Extend the existing function to create clkdev for every optional
      clocks to add a well one "fck" alias for the main_clk of the
      omap_hwmod.
      It will allow to remove these static clkdev entries from the
      clockXXX_data.c file.
      Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Kevin Hilman <khilman@ti.com>
      Cc: Todd Poynor <toddpoynor@google.com>
      [paul@pwsan.com: remove all of the "fck" role clkdev aliases from the
       clock data files; fixed error message]
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      bf1e0776
    • A
      OMAP: hwmod: fix the i2c-reset timeout during bootup · 6d3c55fd
      Avinash.H.M 提交于
      The sequence of _ocp_softreset doesn't work for i2c. The i2c module has a
      special sequence to reset the module. The sequence is
       - Disable the I2C.
       - Write to SOFTRESET bit.
       - Enable the I2C.
       - Poll on the RESETDONE bit.
      The sequence is implemented as a function and the i2c_class is updated with
      the correct 'reset' pointer.  omap_hwmod_softreset function is implemented
      which triggers the softreset by writing into sysconfig register. On following
      this sequence, i2c module resets properly and timeouts are not seen.
      
      Cc: Rajendra Nayak <rnayak@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Benoit Cousson <b-cousson@ti.com>
      Cc: Kevin Hilman <khilman@ti.com>
      Signed-off-by: NAvinash.H.M <avinashhm@ti.com>
      [paul@pwsan.com: combined this patch with a patch to remove
       HWMOD_INIT_NO_RESET from the 44xx hwmod flags; change register
       offset conditional code to use the IP block revision; minor code
       cleanup]
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      6d3c55fd
    • A
      I2C: OMAP2+: add correct functionality flags to all omap2plus i2c dev_attr · 4d4441a6
      Andy Green 提交于
      This adds the new functionality flags for omap i2c unit to all OMAP2
      hwmod definitions
      
      Cc: patches@linaro.org
      Cc: Ben Dooks <ben-linux@fluff.org>
      Reported-by: NPeter Maydell <peter.maydell@linaro.org>
      Signed-off-by: NAndy Green <andy.green@linaro.org>
      Signed-off-by: NTony Lindgren <tony@atomide.com>
      Signed-off-by: NKevin Hilman <khilman@ti.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      4d4441a6
    • A
      I2C: OMAP2+: Tag all OMAP2+ hwmod defintions with I2C IP revision · db791a75
      Andy Green 提交于
      Since we cannot trust (or even reliably find) the OMAP I2C
      peripheral unit's own revision register, we must inform the
      OMAP i2c driver of which IP version it is running on.  We
      do this by tagging the omap_hwmod_class for i2c on all the
      OMAP2+ platform / cpu specific hwmod init and passing it up
      to the driver (next patches).
      
      Cc: patches@linaro.org
      Cc: Ben Dooks <ben-linux@fluff.org>
      Reported-by: NPeter Maydell <peter.maydell@linaro.org>
      Signed-off-by: NAndy Green <andy.green@linaro.org>
      Signed-off-by: NTony Lindgren <tony@atomide.com>
      Signed-off-by: NKevin Hilman <khilman@ti.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      db791a75