Commit Graph

97 Commits

Author SHA1 Message Date
Linus Torvalds 2efda9042d Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management update from Zhang Rui:
 "Summary:

   - of-thermal extension to allow drivers to register and use its
     functionality in a better way, without exploiting thermal core.
     From Lukasz Majewski.

   - Fix a bug in intel_soc_dts_thermal driver which calls a sleep
     function in interrupt handler.  From Maurice Petallo.

   - add a thermal UAPI header file for exporting the thermal generic
     netlink information to user-space.  From Florian Fainelli.

   - First round of refactoring in Exynos driver.  Bartlomiej and Lukasz
     are attempting to make it lean and easier to understand.

   - New thermal driver for Rockchip (rk3288), with support for DT
     thermal.  From Caesar Wang.

   - New thermal driver for Nvidia, Tegra124 SOCTHERM driver, with
     support for DT thermal.  From Mikko Perttunen.

   - New cooling device, based on common clock framework.  From Eduardo
     Valentin.

   - a couple of small fixes in thermal core framework.  From Srinivas
     Pandruvada, Javi Merino, Luis Henriques.

   - Dropping Armada A375-Z1 SoC thermal support as the chip is not in
     the market, armada folks decided to drop its support.

   - a couple of small fixes and cleanups in int340x thermal driver"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (58 commits)
  thermal: provide an UAPI header file
  Thermal/int340x: Clear the error value of the last acpi_bus_get_device() call
  thermal/powerclamp: add id for braswell cpu
  thermal: Intel SoC DTS: Don't do thermal zone update inside spin_lock
  Thermal: fix platform_no_drv_owner.cocci warnings
  Thermal/int340x: avoid unnecessary pointer casting
  thermal: int3403: Delete a check before thermal_zone_device_unregister()
  thermal/int3400: export uuids
  thermal: of: Extend current of-thermal.c code to allow setting emulated temp
  thermal: of: Extend of-thermal to export table of trip points
  thermal: of: Rename struct __thermal_trip to struct thermal_trip
  thermal: of: Extend of-thermal.c to provide check if trip point is valid
  thermal: of: Extend of-thermal.c to provide number of trip points
  thermal: Fix error path in thermal_init()
  thermal: lock the thermal zone when switching governors
  thermal: core: ignore invalid trip temperature
  thermal: armada: Remove support for A375-Z1 SoC
  thermal: rockchip: add driver for thermal
  dt-bindings: document Rockchip thermal
  thermal: exynos: remove exynos_tmu_data.h include
  ...
2014-12-17 10:16:27 -08:00
Linus Torvalds e6b5be2be4 Driver core patches for 3.19-rc1
Here's the set of driver core patches for 3.19-rc1.
 
 They are dominated by the removal of the .owner field in platform
 drivers.  They touch a lot of files, but they are "simple" changes, just
 removing a line in a structure.
 
 Other than that, a few minor driver core and debugfs changes.  There are
 some ath9k patches coming in through this tree that have been acked by
 the wireless maintainers as they relied on the debugfs changes.
 
 Everything has been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core update from Greg KH:
 "Here's the set of driver core patches for 3.19-rc1.

  They are dominated by the removal of the .owner field in platform
  drivers.  They touch a lot of files, but they are "simple" changes,
  just removing a line in a structure.

  Other than that, a few minor driver core and debugfs changes.  There
  are some ath9k patches coming in through this tree that have been
  acked by the wireless maintainers as they relied on the debugfs
  changes.

  Everything has been in linux-next for a while"

* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
  Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
  fs: debugfs: add forward declaration for struct device type
  firmware class: Deletion of an unnecessary check before the function call "vunmap"
  firmware loader: fix hung task warning dump
  devcoredump: provide a one-way disable function
  device: Add dev_<level>_once variants
  ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
  ath: use seq_file api for ath9k debugfs files
  debugfs: add helper function to create device related seq_file
  drivers/base: cacheinfo: remove noisy error boot message
  Revert "core: platform: add warning if driver has no owner"
  drivers: base: support cpu cache information interface to userspace via sysfs
  drivers: base: add cpu_device_create to support per-cpu devices
  topology: replace custom attribute macros with standard DEVICE_ATTR*
  cpumask: factor out show_cpumap into separate helper function
  driver core: Fix unbalanced device reference in drivers_probe
  driver core: fix race with userland in device_add()
  sysfs/kernfs: make read requests on pre-alloc files use the buffer.
  sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
  fs: sysfs: return EGBIG on write if offset is larger than file size
  ...
2014-12-14 16:10:09 -08:00
Zhang Rui 9c1e4550b5 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal into eduardo-soc-thermal 2014-12-09 11:37:35 +08:00
Markus Elfring d3e19567fa thermal: Exynos: Deletion of unnecessary checks before two function calls
The functions cpufreq_cooling_unregister() and thermal_zone_device_unregister()
test whether their argument is NULL and then return immediately.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-21 15:20:17 -04:00
Bartlomiej Zolnierkiewicz 2845f6ec81 thermal: exynos: remove exynos_tmu_data.h include
There is no longer need to share defines between exynos_tmu.c
and exynos_tmu_data.c (as they are now only used by the former
file) so move them accordingly.  Then move externs for struct
exynos_tmu_init_data instances to exynos_tmu.h and remove no
longer needed exynos_tmu_data.h include.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:50 -04:00
Bartlomiej Zolnierkiewicz 78f3320d77 thermal: exynos: remove __EXYNOS5420_TMU_DATA macro
__EXYNOS5420_TMU_DATA macro is now identical to __EXYNOS5260_TMU_DATA
one and can be removed.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:45 -04:00
Bartlomiej Zolnierkiewicz 4c4680a167 thermal: exynos: remove SoC type ifdefs
Maximum theoretical size saving (i.e. with only Exynos5410
SoC support enabled in kernel config so all SoC dependend
Exynos thermal driver code was dropped) is 4096 bytes so
there is no much sense in keeping these ifdefs (especially
given that they are useless once the driver gets updated to
use device tree).

While at it remove needless 'void *' casts.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:42 -04:00
Bartlomiej Zolnierkiewicz 7575983c57 thermal: exynos: remove test_mux pdata field
Replace pdata->test_mux check in get_con_reg() by explicitly
checking for SoC type.

Also since the used pdata->test_mux value is always identical
use it directly and remove pdata->test_mux completely.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:38 -04:00
Bartlomiej Zolnierkiewicz 17be30cb7f thermal: exynos: remove TMU_SUPPORT_MULTI_INST flag
Remove unused TMU_SUPPORT_MULTI_INST flag, no longer
needed TMU_SUPPORTS() macro and features field from
struct exynos_tmu_platform_data.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:32 -04:00
Bartlomiej Zolnierkiewicz 56adb9efeb thermal: exynos: remove TMU_SUPPORT_ADDRESS_MULTIPLE flag
Replace TMU_SUPPORT_ADDRESS_MULTIPLE flag check in exynos_map_dt_data()
by an explicit check for a SoC type (only Exynos5420 with TRIMINFO
quirk and Exynos5440 have TMU_SUPPORT_ADDRESS_MULTIPLE flag set in
their struct exynos_tmu_init_data instances).

Please note that this requires moving SoC type assignment and verification
from exynos_tmu_probe() to exynos_map_dt_data() so it happens earlier
(which is a good thing in itself).

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:27 -04:00
Bartlomiej Zolnierkiewicz ef3f80fc7f thermal: exynos: remove TMU_SUPPORT_EMULATION flag
Replace TMU_SUPPORT_EMULATION flag check in exynos_tmu_set_emulation()
by an explicit check for a SoC type (all SoC types except Exynos4210
have TMU_SUPPORT_EMULATION flag set in their struct exynos_tmu_init_data
instances).

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:24 -04:00
Bartlomiej Zolnierkiewicz d564b55a81 thermal: exynos: remove TMU_SUPPORT_EMUL_TIME flag
Replace TMU_SUPPORT_EMUL_TIME flag check in get_emul_con_reg()
by an explicit check for a SoC type (all SoC types except
Exynos4210 and Exynos5440 have TMU_SUPPORT_EMUL_TIME flag set
in their struct exynos_tmu_init_data instances).

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:20 -04:00
Bartlomiej Zolnierkiewicz e0761533a1 thermal: exynos: remove TMU_SUPPORT_FALLING_TRIP flag
Replace TMU_SUPPORT_FALLING_TRIP flag check in
exynos[4210,5440]_tmu_control() by an explicit check
for a SoC type (all SoC types except Exynos4210 have
TMU_SUPPORT_FALLING_TRIP flag set in their struct
exynos_tmu_init_data instances).

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:16 -04:00
Bartlomiej Zolnierkiewicz a7331f72d3 thermal: exynos: add ->tmu_clear_irqs method
Add ->tmu_clear_irqs method to struct exynos_tmu_data and use
it instead exynos_tmu_clear_irqs().  Then add ->tmu_clear_irqs
implementations for Exynos4210+ and Exynos5440.  Finally
remove no longer needed reg->tmu_int[stat,clear] abstractions
and struct exynos_tmu_registers instances.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:12 -04:00
Bartlomiej Zolnierkiewicz 285d994a51 thermal: exynos: add ->tmu_set_emulation method
Add ->tmu_set_emulation method to struct exynos_tmu_data and
use it in exynos_tmu_set_emulation().  Then add ->tmu_set_emulation
implementations for Exynos4412+ and Exynos5440.  Finally remove
no longer needed reg->emul_con abstraction.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:09 -04:00
Bartlomiej Zolnierkiewicz 154013ea5f thermal: exynos: add get_emul_con_reg() helper
Factor out code for preparing EMUL_CON register value from
exynos_tmu_set_emulation() into get_emul_con_reg().

This is a preparation for introducing per-SoC type
tmu_set_emulation method.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:05 -04:00
Bartlomiej Zolnierkiewicz b79985ca74 thermal: exynos: add ->tmu_read method
Add ->tmu_read method to struct exynos_tmu_data and use it
in exynos_tmu_control().  Then add ->tmu_read implementations
for Exynos4210, Exynos4412+ and Exynos5440.  Finally remove
no longer needed reg->tmu_cur_temp abstractions.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:54:02 -04:00
Bartlomiej Zolnierkiewicz 37f9034f99 thermal: exynos: add ->tmu_control method
Add ->tmu_control method to struct exynos_tmu_data and use it
in exynos_tmu_control().  Then add ->tmu_control implementations
for Exynos4210+ and Exynos5440.  Finally remove no longer needed
reg->tmu_[ctrl,inten], reg->inten_rise[0,1,2,3]_shift and
reg->inten_fall0_shift abstractions.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:53:58 -04:00
Bartlomiej Zolnierkiewicz d00671c3ae thermal: exynos: add get_con_reg() helper
Factor out code for preparing TMU_CONTROL register value from
exynos_tmu_control() into get_con_reg().

This is a preparation for introducing per-SoC type tmu_control
method.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:53:51 -04:00
Bartlomiej Zolnierkiewicz 72d1100b73 thermal: exynos: add ->tmu_initialize method
Add ->tmu_initialize method to struct exynos_tmu_data and
use it in exynos_tmu_initialize().  Then add ->tmu_initialize
implementations for Exynos4210, Exynos4412+ and Exynos5440.
Finally remove no longer needed reg->threshold_th[0,1],
reg->intclr_[fall,rise]_shift and reg->intclr_[rise,fall]_mask
abstractions.

There are more improvements available in the future on top
of this patch like merging HW_TRIP level setting with setting
of other levels for Exynos4412+ or adding separate method
for clearing IRQs using INTCLEAR register (for Exynos5420,
Exynos5260 and Exynos4412+).

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:53:46 -04:00
Bartlomiej Zolnierkiewicz fe87789cd4 thermal: exynos: add get_th_reg() helper
Factor out code for preparing threshold register value from
exynos_tmu_initialize() into get_th_reg().

This is a preparation for introducing per-SoC type tmu_initialize
method.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:53:24 -04:00
Bartlomiej Zolnierkiewicz 8328a4b1d6 thermal: exynos: add sanitize_temp_error() helper
Factor out code for initializing data->temp_error[1,2] values
from exynos_tmu_initialize() into sanitize_temp_error().

This is a preparation for introducing per-SoC type tmu_initialize
method.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:53:17 -04:00
Bartlomiej Zolnierkiewicz 1e04ee8053 thermal: exynos: remove TMU_SUPPORT_TRIM_RELOAD flag
Replace TMU_SUPPORT_TRIM_RELOAD flag check in exynos_tmu_initialize()
by an explicit check for a SoC type (only Exynos3250, Exynos4412 and
Exynos5250 have TMU_SUPPORT_READY_STATUS flag set in their struct
exynos_tmu_init_data instances).  Please note that this requires
adding separate SoC type for Exynos5420 so it doesn't get mistaken
with Exynos5250.

This is a preparation for introducing per-SoC type tmu_initialize
method.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:53:14 -04:00
Bartlomiej Zolnierkiewicz 6f02fa18fb thermal: exynos: remove TMU_SUPPORT_READY_STATUS flag
Replace TMU_SUPPORT_READY_STATUS flag check in
exynos_tmu_initialize() by an explicit check for a SoC type
(all SoC types except Exynos5440 have TMU_SUPPORT_READY_STATUS
flag set in their struct exynos_tmu_init_data instances).

This is a preparation for introducing per-SoC type tmu_initialize
method.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:53:11 -04:00
Bartlomiej Zolnierkiewicz 23f146296c thermal: exynos: replace threshold_falling check by Exynos SoC type one
Replace pdata->threshold_falling check for non-zero value in
exynos_tmu_initialize() by an explicit check for a SoC type
(all SoC types except Exynos5440 have pdata->threshold_falling
assigned to non-zero value in their struct exynos_tmu_registers
instances).

This is a preparation for introducing per-SoC type tmu_initialize
method.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:53:08 -04:00
Bartlomiej Zolnierkiewicz 2516593e4e thermal: exynos: simplify HW_TRIP level setting
Simplify HW_TRIP level setting in exynos_tmu_initialize() (don't
pretend that the current code is hardware and configuration
independent and just do SoC type check explicitly).  Then remove
no longer needed reg->threshold_[th2,th3_l0_shift] abstractions
(only assigned for Exynos5440 in exynos5440_tmu_registers) and
EXYNOS_MAX_TRIGGER_PER_REG define.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:53:04 -04:00
Bartlomiej Zolnierkiewicz 0c78b4d88f thermal: exynos: replace tmu_pmin check by Exynos5440 one
reg->tmu_pmin is set to non-zero value only for Exynos5440
so replace check for non-zero value of reg->tmu_pmin by
explicitly checking for Exynos5440 SoC type.  Then remove no
longer needed reg->tmu_pmin register abstraction.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:53:01 -04:00
Bartlomiej Zolnierkiewicz 421d5d127d thermal: exynos: replace tmu_irqstatus check by Exynos5440 one
reg->tmu_irqstatus is set to non-zero value only for Exynos5440
so replace check for non-zero value of reg->tmu_irqstatus by
explicitly checking for Exynos5440 SoC type.  Then remove no
longer needed reg->tmu_irqstatus register abstraction.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:52:58 -04:00
Bartlomiej Zolnierkiewicz 6070c2ca37 thermal: exynos: remove needless emul_time_shift abstraction
reg->emul_time_shift is used only in exynos_tmu_set_emulation()
and accessed only if TMU_SUPPORT_EMUL_TIME flag is set.  This
flag is not set for Exynos4210 and Exynos5440 (reg->emul_time_shift
field is not even assigned in exynos[4210,5440]_tmu_registers
and is assigned to identical value for all other SoC types) so
the abstraction is not needed and can be removed.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:52:54 -04:00
Bartlomiej Zolnierkiewicz 9e288d6430 thermal: exynos: remove needless emul_temp_shift abstraction
reg->emul_temp_shift is used only in exynos_tmu_set_emulation()
and accessed only if TMU_SUPPORT_EMULATION flag is set.  This
flag is not set for Exynos4210 (reg->emul_temp_shift field is
not even assigned in exynos4210_tmu_registers and is assigned
to identical value for all other SoC types) so the abstraction
is not needed and can be removed.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:52:51 -04:00
Bartlomiej Zolnierkiewicz 77a37a92ca thermal: exynos: remove needless therm_trip_en_shift abstraction
reg->therm_trip_en_shift is used only in exynos_tmu_initialize()
and not accessed on Exynos4210 (also reg->therm_trip_en_shift is
not even assigned in exynos4210_tmu_registers but it is assigned
to identical value for all other SoC types) so the register
abstraction is not needed and can be removed.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:52:47 -04:00
Bartlomiej Zolnierkiewicz b9504a6a3d thermal: exynos: remove needless therm_trip_[mode,mask]_shift abstractions
reg->therm_trip_mode_shift and reg->therm_trip_mode_mask are
used only in exynos_tmu_control() and accessed only if
pdata->noise_cancel_mode is non-zero.  pdata->noise_cancel
field is not defined on Exynos4210 (also therm_trip_mode_shift
and therm_trip_mode_mask entries are not even assigned in
exynos4210_tmu_registers but they are assigned to identical
values for all other SoC types) so the abstractions are not
needed and can be removed.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:52:43 -04:00
Bartlomiej Zolnierkiewicz bfb2b88c79 thermal: exynos: remove needless test_mux_addr_shift abstraction
reg->test_mux_addr_shift is used only if pdata->test_mux is
non-zero.  pdata->test_mux is defined only on Exynos3250 and
Exynos4412 (other SoC types don't even have pdata->test_mux
entry assigned in their struct exynos_tmu_registers instances)
so the abstraction is not needed and can be removed.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:52:39 -04:00
Bartlomiej Zolnierkiewicz 32f9520569 thermal: exynos: remove needless triminfo_ctrl abstraction
reg->triminfo_ctrl[] is used in only exynos_tmu_initialize() and
accessed only if TMU_SUPPORT_TRIM_RELOAD flag is set.  This flag
is set only on Exynos3250, Exynos4412 and Exynos5250 (other SoC
types don't even have triminfo_ctrl[] entries assigned in their
struct exynos_tmu_registers instances) so the register abstraction
is not needed and can be removed.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:52:35 -04:00
Bartlomiej Zolnierkiewicz 6b1fbbdeba thermal: exynos: remove needless threshold_temp abstraction
reg->threshold_temp is used only in exynos_tmu_initialize() and
is accessed only on Exynos4210 (other SoC types don't even have
threshold_temp entry assigned in their struct exynos_tmu_registers
instances) so the register abstraction is not needed and can be
removed.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:52:29 -04:00
Bartlomiej Zolnierkiewicz 5d022061ca thermal: exynos: remove needless tmu_status abstraction
reg->tmu_status is used only in exynos_tmu_initialize() and it
is accessed only if TMU_SUPPORT_READY_STATUS flag is set.  This
flag is not set for Exynos5440 and TMU_STATUS register offset
is identical for all other SoC types so the abstraction is not
needed and can be removed.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:52:23 -04:00
Bartlomiej Zolnierkiewicz 77109411d5 thermal: exynos: remove needless triminfo_data abstraction
reg->triminfo_data is used only in exynos_tmu_initialize() and
the code has already different paths for Exynos5440 and other
SoC types (on which TRIMINFO_DATA register offset is identical)
so the register abstraction is not needed and can be removed.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-20 10:51:54 -04:00
Bartlomiej Zolnierkiewicz 1d6a277757 thermal: exynos: use correct offset for TMU_CONTROL register on Exynos5260
In exynos5260_tmu_registers tmu_ctrl entry is erroneously
assigned twice.  The second assignment (to EXYNOS_TMU_REG_CONTROL1
define which represents 0x24 value) overrides the first one
(to EXYNOS_TMU_REG_CONTROL define which represents 0x20 value)
which results in the wrong (according to the Exynos5260 SoC
documentation that I have) offset being used for TMU_CONTROL
register.  Fix it by removing the wrong assignment and then
remove no longer used EXYNOS_TMU_REG_CONTROL1 define.

Cc: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-07 14:52:42 -04:00
Bartlomiej Zolnierkiewicz b835ced1fd thermal: exynos: fix IRQ clearing on TMU initialization
* Factor out code for clearing raised IRQs from exynos_tmu_work() to
  exynos_tmu_clear_irqs().

* Add a comment about documentation bugs to exynos_tmu_clear_irqs().

  [ The documentation for Exynos3250, Exynos4412, Exynos5250 and
    Exynos5260 incorrectly states that INTCLEAR register has
    a different placing of bits responsible for FALL IRQs than
    INTSTAT register.  Exynos5420 and Exynos5440 documentation is
    correct (Exynos4210 doesn't support FALL IRQs at all). ]

* Use exynos_tmu_clear_irqs() in exynos_tmu_initialize() instead
  of open-coded code trying to clear IRQs according to predefined
  masks.  After this change exynos_tmu_initialize() just clears
  IRQs that are raised like it is already done in exynos_tmu_work().

  As a nice side-effect the code now uses the correct offset
  (16 instead of 12) for bits responsible for clearing FALL IRQs
  in INTCLEAR register on Exynos3250, Exynos4412 and Exynos5250.

* Remove no longer needed intclr_rise_[mask,shift] and
  intclr_fall_[mask,shift] fields from struct exynos_tmu_registers.

* Remove no longer needed defines.

This patch has been tested on Exynos4412 and Exynos5420 SoCs.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02 23:02:49 -04:00
Chanwoo Choi 32a7416423 thermal: exynos: Add support for TRIM_RELOAD feature at Exynos3250
This patch add support for TRIM_RELOAD feature at Exynos3250. The TMu of
Exynos3250 has two TRIMINFO_CON register and must need to set RELOAD bit
before reading TRIMINFO register.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Reviewed-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02 23:02:49 -04:00
Chanwoo Choi 56c64da7aa thermal: exynos: Add support for many TRIMINFO_CTRL registers
This patch support many TRIMINFO_CTRL registers if specific Exynos SoC
has one more TRIMINFO_CTRL registers. Also this patch uses proper 'RELOAD'
shift/mask bit operation to set RELOAD feature instead of static value.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Reviewed-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02 23:02:48 -04:00
Bartlomiej Zolnierkiewicz 60e203ecb1 thermal: samsung: Exynos5260 and Exynos5420 should not use TRIM_RELOAD flag
Currently these SoCs claim TRIM_RELOAD support but don't have
triminfo_ctrl register address defined in their struct
exynos_tmu_registers entries.  This causes incorrect write of
value "1" to data->base + 0x00 address (which happens to be
TRIMINFO register).  Additionally according to the documentation
that I have neither Exynos5260 nor Exynos5420 support/require
TRIM_RELOAD feature.  Thus fix the aforementioned issue by
removing TMU_SUPPORT_TRIM_RELOAD flag for both Exynos5260 and
Exynos5420.

Cc: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02 23:02:48 -04:00
Bartlomiej Zolnierkiewicz 99d67fb993 thermal: exynos: remove identical values from exynos*_tmu_registers structures
There is no need for abstracting configuration for registers that
are identical on all SoC types.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02 23:02:48 -04:00
Bartlomiej Zolnierkiewicz 9c7a87f146 thermal: exynos: remove redundant pdata checks from exynos_tmu_control()
pdata->reference_voltage and pdata->gain are always defined
to non-zero values so remove the redundant checks from
exynos_tmu_control().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02 23:02:48 -04:00
Bartlomiej Zolnierkiewicz ac951af51f thermal: exynos: cache non_hw_trigger_levels in pdata
Cache number of non-hardware trigger levels in a new pdata field
(non_hw_trigger_levels) and convert code in exynos_tmu_initialize()
accordingly.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02 23:02:48 -04:00
Bartlomiej Zolnierkiewicz ddb31d43cb thermal: exynos: simplify temp_to_code() and code_to_temp()
* Remove dead temp check from temp_to_code() (this function users
  in exynos_tmu_initialize() always pass correct temperatures and
  exynos_tmu_set_emulation() returns early for EXYNOS4210 because
  TMU_SUPPORT_EMULATION flag is not set on this SoC).

* Move temp_code check from code_to_temp() to exynos_tmu_read()
  (code_to_temp() only user).

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02 23:02:48 -04:00
Bartlomiej Zolnierkiewicz 8131a24660 thermal: exynos: remove redundant threshold_code checks from exynos_tmu_initialize()
Remove runtime checks for negative return values of temp_to_code()
from exynos_tmu_initialize().

The current level temperature data hardcoded in pdata will never
cause a negative temp_to_code() return values and checking itself
is not proper.  The checks in question are done at runtime in
a production code for data that is hardcoded inside driver during
development time and later it doesn't change.  Such data should
be verified during development and review time (i.e. by a script
parsing relevant data from exynos_tmu_data.c, one can also argue
that verification to be done is so simple that the review by
a maintainer should be enough).

Theres should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02 23:02:47 -04:00
Bartlomiej Zolnierkiewicz 930aa102e2 thermal: exynos: remove redundant pdata checks from exynos_tmu_initialize()
Remove runtime checks for pdata sanity from exynos_tmu_initialize().

The current values hardcoded in pdata will never trigger the checks
and checking itself is not proper.  The checks in question are done
at runtime in a production code for data that is hardcoded inside
driver during development time and later it doesn't change.  Such
data should be verified during development and review time (i.e. by
a script parsing relevant data from exynos_tmu_data.c, one can also
argue that verification to be done is so simple that the review by
a maintainer should be enough).

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02 23:02:47 -04:00
Bartlomiej Zolnierkiewicz d37761ecde thermal: exynos: remove dead code for HW_MODE calibration
The commit 1928457 ("thermal: exynos: Add hardware mode thermal
calibration support") has added HW_MODE feature but it has never
been enabled.  As such it has been a dead code for over a year
now and should be removed from the kernel.

We don't keep the unused/untested features in the kernel just
in case that some future hardware might need it.  Such code has
a real maintainance cost (all other code changes have to take
the dead code into account) and usually makes future changes
more difficult, not easier (i.e. recent additions of Exynos5420
SoC and Exynos5260 SoC thermal support has not made use of any
of the driver's currently unused/untested features, moreover
the recently added code is more complex than needed because of
the existing dead code).  Also all removed dead code is still
accessible in the kernel git repository and can be easily
brought back if/when needed.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02 23:02:47 -04:00
Bartlomiej Zolnierkiewicz e841971628 thermal: exynos: remove unused struct exynos_tmu_registers entries
Remove unused / write-only entries from struct exynos_tmu_registers.
Then remove unused defines while at it.

We don't keep the unused/untested features in the kernel just
in case that some future hardware might need it.  Such code has
a real maintainance cost (all other code changes have to take
the dead code into account) and usually makes future changes
more difficult, not easier (i.e. recent additions of Exynos5420
SoC and Exynos5260 SoC thermal support has not made use of any
of the driver's currently unused/untested features, moreover
the recently added code is more complex than needed because of
the existing dead code).  Also all removed dead code is still
accessible in the kernel git repository and can be easily
brought back if/when needed.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02 23:02:47 -04:00