29 Sep, 2014
3 commits
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Export symbols from the PPMU driver needed to build the exynos bus
driver as a module.Cc: MyungJoo Ham
Cc: Kyungmin Park
Cc: Kukjin Kim
Cc: Bartlomiej Zolnierkiewicz
Signed-off-by: Punit Agrawal
Signed-off-by: MyungJoo Ham -
These functions are indended for use by drivers and should be available
also when the driver is built as a module.Cc: MyungJoo Ham
Cc: Kyungmin Park
Signed-off-by: Ãrjan Eide
Signed-off-by: MyungJoo Ham -
The Kconfig symbol ARCH_HAS_OPP became redundant in v3.16: commit
049d595a4db3 ("PM / OPP: Make OPP invisible to users in Kconfig")
removed the only dependency that used it. Setting it had no effect
anymore.So commit 78c5e0bb145d ("PM / OPP: Remove ARCH_HAS_OPP") removed it. For
some reason that commit did not remove all select statements for that
symbol. These statements are now useless. Remove one from devfreq too.Signed-off-by: Paul Bolle
Signed-off-by: MyungJoo Ham
23 Jul, 2014
1 commit
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Since the OPP layer is a kernel library which has been converted to be
directly selectable by its callers rather than user selectable and
requiring architectures to enable it explicitly the ARCH_HAS_OPP symbol
has become redundant and can be removed. Do so.Signed-off-by: Mark Brown
Reviewed-by: Viresh Kumar
Acked-by: Nishanth Menon
Acked-by: Rob Herring
Acked-by: Shawn Guo
Acked-by: Simon Horman
Signed-off-by: Rafael J. Wysocki
24 May, 2014
15 commits
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Checks for CONFIG_EXYNOS_ASV were added in v3.3. But the related Kconfig
symbol has never been added to the tree. Remove these checks, as they
always evaluate to false.Signed-off-by: Paul Bolle
[Merge conflict resolved by MyungJoo]
Signed-off-by: MyungJoo Ham -
This patch uses devm_devfreq_add_device()/devm_devfreq_register_opp_notifier()
to control automatically the resource of devfreq.Signed-off-by: Chanwoo Choi
Cc: Kukjin Kim
Cc: Sachin Kamat
Cc: Bartlomiej Zolnierkiewicz
Cc: Manish Badarkhe
Cc: Abhilash Kesavan
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: MyungJoo Ham -
This patch uses devm_devfreq_add_device()/devm_devfreq_register_opp_notifier()
to control automatically the resource of devfreq.Signed-off-by: Chanwoo Choi
Cc: Kukjin Kim
Cc: Bartlomiej Zolnierkiewicz
Cc: Wei Yongjun
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: MyungJoo Ham -
This patch add resource-managed function for devfreq opp as following
functions. The devm_devfreq_register_opp_notifier() manages automatically
the registration of devfreq opp using device resource management.
- devm_devfreq_register_opp_notifier
- devm_devfreq_unregister_opp_notifier()Signed-off-by: Chanwoo Choi
Signed-off-by: MyungJoo Ham -
This patch add resource-managed function for devfreq device as following
functions. The devm_devfreq_add_device() manages automatically the memory
of devfreq device using device resource management.
- devm_devfreq_add_device()
- devm_devfreq_remove_device()Signed-off-by: Chanwoo Choi
Signed-off-by: MyungJoo Ham -
This patch modify devfreq_remove_device() to improve the sequence of resource
free. If executing existing devfreq_remove_device(), this function always
executes _remove_devfreq() twice. In result, second _remove_devfreq() always
return error value. So, This patch resolves complicated function sequence
as following:[Flow sequence before modification]
devfreq_remove_device()
_remove_devfreq(devfreq, false)
kfree(devfreq); /* Free devfreq */
if (!skip ...) { /* skip is false */
device_unregister(&devfreq->dev)
put_device(&devfreq->dev);
...
dev->release()
devfreq_dev_release()
_remove_devfreq(devfreq, true) dev)
put_device(&devfreq->dev);
..
dev->release()
devfreq_dev_release()
_remove_devfreq()
kfree(devfreq); /* Free devfreq */Signed-off-by: Chanwoo Choi
[Merge conflict resolved by MyungJoo]
Signed-off-by: MyungJoo Ham -
Move common PPMU code from exynos[45]_bus.c to exynos_ppmu.c.
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz
Signed-off-by: MyungJoo Ham -
This is a preparation for making more PPMU code common for
EXYNOS devfreq drivers.There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz
Signed-off-by: MyungJoo Ham -
This is a preparation for making more PPMU code common for
EXYNOS devfreq drivers.There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz
Signed-off-by: MyungJoo Ham -
This patch converts exynos4_bus driver to use common PPMU code
(exynos_ppmu.c) instead of individual functions related to PPC
because PPMU is integrated module with both PPC and Bus event
generator. When using PPMU to get bus performance read/write
event exynos4_bus driver deson't need to consider memory type.Signed-off-by: Chanwoo Choi
[bzolnier: splitted out changes from the bigger patch]
Signed-off-by: Bartlomiej Zolnierkiewicz
Signed-off-by: MyungJoo Ham -
This patch add CONFIG_PM_OPP dependecy to exynos5_bus driver
to fix probe fail. If CONFIG_PM_OPP is disabled, dev_pm_opp_find_freq_floor()
will always return ERR_PTR(-EINVAL) error.Signed-off-by: Chanwoo Choi
Reviewed-by: Tomasz Figa
Signed-off-by: MyungJoo Ham -
This patch use SIMPLE_DEV_PM_OPS macro instead of legacy method.
Signed-off-by: Chanwoo Choi
Reviewed-by: Tomasz Figa
Signed-off-by: MyungJoo Ham -
This patch add CONFIG_PM_OPP dependecy to exynos4_bus driver
to fix probe fail as following log:[ 3.721389] exynos4-busfreq busfreq.3: Fail to add opp entries.
[ 3.721697] exynos4-busfreq: probe of busfreq.3 failed with error -22If CONFIG_PM_OPP is disabled, dev_pm_opp_find_freq_floor() in xxx_probe()
will always return -EINVAL error.Signed-off-by: Chanwoo Choi
Reviewed-by: Tomasz Figa
Signed-off-by: MyungJoo Ham -
This patch use SIMPLE_DEV_PM_OPS macro instead of legacy method.
Signed-off-by: Chanwoo Choi
Reviewed-by: Tomasz Figa
Signed-off-by: MyungJoo Ham -
This patch fix bug about resource leak when happening probe fail and code clean
to add debug message.Signed-off-by: Chanwoo Choi
Reviewed-by: Tomasz Figa
Signed-off-by: MyungJoo Ham
21 Mar, 2014
1 commit
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The current devfreq_update_status() has the following bugs:
- If previous frequency doesn't have a valid level, it does an out of bounds
access into the trans_table and causes memory corruption.
- When the new frequency doesn't have a valid level, the time spent in the
new frequency is counted towards the next valid frequency switch instead of
being ignored.
- The time spent on the previous frequency is added to the new frequency's
stats instead of the previous frequency's stats.This patch fixes all of this.
Signed-off-by: Saravana Kannan
Signed-off-by: MyungJoo Ham
29 Jan, 2014
1 commit
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* pm-cpufreq:
acpi-cpufreq: De-register CPU notifier and free struct msr on error.* pm-devfreq:
PM / devfreq: Disable Exynos4 driver build on multiplatform
28 Jan, 2014
1 commit
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Exynos4 devfreq driver uses mach/map.h which is not available on
multiplatform. Hence disable build on multiplatform for now.
Without this patch we get the following build errors:
drivers/devfreq/exynos/exynos4_bus.h:15:22: fatal error: mach/map.h: No such file or directorySigned-off-by: Sachin Kamat
Signed-off-by: Rafael J. Wysocki
24 Jan, 2014
1 commit
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Pull ARM SoC cleanups from Olof Johansson:
"This is the branch where we usually queue up cleanup efforts, moving
drivers out of the architecture directory, header file restructuring,
etc. Sometimes they tangle with new development so it's hard to keep
it strictly to cleanups.Some of the things included in this branch are:
* Atmel SAMA5 conversion to common clock
* Reset framework conversion for tegra platforms
- Some of this depends on tegra clock driver reworks that are shared
with Mike Turquette's clk tree.
* Tegra DMA refactoring, which are shared branches with the DMA tree.
* Removal of some header files on exynos to prepare for
multiplatform"* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (169 commits)
ARM: mvebu: move Armada 370/XP specific definitions to armada-370-xp.h
ARM: mvebu: remove prototypes of non-existing functions from common.h
ARM: mvebu: move ARMADA_XP_MAX_CPUS to armada-370-xp.h
serial: sh-sci: Rework baud rate calculation
serial: sh-sci: Compute overrun_bit without using baud rate algo
serial: sh-sci: Remove unused GPIO request code
serial: sh-sci: Move overrun_bit and error_mask fields out of pdata
serial: sh-sci: Support resources passed through platform resources
serial: sh-sci: Don't check IRQ in verify port operation
serial: sh-sci: Set the UPF_FIXED_PORT flag
serial: sh-sci: Remove duplicate interrupt check in verify port op
serial: sh-sci: Simplify baud rate calculation algorithms
serial: sh-sci: Remove baud rate calculation algorithm 5
serial: sh-sci: Sort headers alphabetically
ARM: EXYNOS: Kill exynos_pm_late_initcall()
ARM: EXYNOS: Consolidate selection of PM_GENERIC_DOMAINS for Exynos4
ARM: at91: switch Calao QIL-A9260 board to DT
clk: at91: fix pmc_clk_ids data type attriubte
PM / devfreq: use inclusion instead of
ARM: EXYNOS: remove for exynos
...
19 Dec, 2013
4 commits
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Correct spelling typo in various part of kernel
Signed-off-by: Masanari Iida
Acked-by: Randy Dunlap
Signed-off-by: Jiri Kosina -
Sync with Linus' tree to be able to apply fixes on top of newer things
in tree (efi-stub).Signed-off-by: Jiri Kosina
-
This fixes follwoing warning:
In file included from drivers/devfreq/exynos/exynos4_bus.h:15:0,
from drivers/devfreq/exynos/exynos4_bus.c:35:
arch/arm/mach-exynos/include/mach/map.h:22:0: warning: "S3C_UART_OFFSET" redefined [enabled by default]
In file included from drivers/devfreq/exynos/exynos4_bus.c:33:0:
arch/arm/plat-samsung/include/plat/map-s5p.h:57:0: note: this is the location of the previous definitionAcked-by: MyungJoo Ham
Signed-off-by: Kukjin Kim -
We don't need to keep the definitions for exynos4_bus into
mach-exynos/ so this moves them into drviers/devfreq with
adding header file.Acked-by: MyungJoo Ham
Signed-off-by: Kukjin Kim
02 Dec, 2013
1 commit
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Changed exynox -> Exynos.
Signed-off-by: Sachin Kamat
Acked-by: MyungJoo Ham
Signed-off-by: Jiri Kosina
08 Nov, 2013
1 commit
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* pm-devfreq:
PM / devfreq: create_freezable_workqueue() doesn't return an ERR_PTR
PM / devfreq: Remove duplicate header file inclusion in exynos5_bus.c
PM / devfreq: Use devm_* APIs in exynos5_bus.c
PM / devfreq: Remove redundant platform_set_drvdata() in exynos5_bus.c
PM / devfreq: Fix incorrect usage of IS_ERR_OR_NULL in exynos5_bus.c
28 Oct, 2013
6 commits
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The create_freezable_workqueue() function returns a NULL on error and
not an ERR_PTR.Signed-off-by: Dan Carpenter
Signed-off-by: MyungJoo Ham -
linux/opp.h was included twice.
Signed-off-by: Sachin Kamat
Signed-off-by: MyungJoo Ham -
devm_* APIs are device managed and make clean up and exit codes
simpler.Signed-off-by: Sachin Kamat
Signed-off-by: MyungJoo Ham -
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.Signed-off-by: Sachin Kamat
Acked-by: MyungJoo Ham
Signed-off-by: MyungJoo Ham -
platform_device_register_simple does not return NULL.
Hence NULL check is not required.Signed-off-by: Sachin Kamat
Acked-by: MyungJoo Ham
Signed-off-by: MyungJoo Ham -
* pm-cpufreq: (167 commits)
cpufreq: create per policy rwsem instead of per CPU cpu_policy_rwsem
intel_pstate: Add Baytrail support
intel_pstate: Refactor driver to support CPUs with different MSR layouts
cpufreq: Implement light weight ->target_index() routine
PM / OPP: rename header to linux/pm_opp.h
PM / OPP: rename data structures to dev_pm equivalents
PM / OPP: rename functions to dev_pm_opp*
cpufreq / governor: Remove fossil comment
cpufreq: exynos4210: Use the common clock framework to set APLL clock rate
cpufreq: exynos4x12: Use the common clock framework to set APLL clock rate
cpufreq: Detect spurious invocations of update_policy_cpu()
cpufreq: pmac64: enable cpufreq on iMac G5 (iSight) model
cpufreq: pmac64: provide cpufreq transition latency for older G5 models
cpufreq: pmac64: speed up frequency switch
cpufreq: highbank-cpufreq: Enable Midway/ECX-2000
exynos-cpufreq: fix false return check from "regulator_set_voltage"
speedstep-centrino: Remove unnecessary braces
acpi-cpufreq: Add comment under ACPI_ADR_SPACE_SYSTEM_IO case
cpufreq: arm-big-little: use clk_get instead of clk_get_sys
cpufreq: exynos: Show a list of available frequencies
...Conflicts:
drivers/devfreq/exynos/exynos5_bus.c
26 Oct, 2013
3 commits
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Since Operating Performance Points (OPP) functions are specific
to device specific power management, be specific and rename opp.h
to pm_opp.hReported-by: Randy Dunlap
Signed-off-by: Nishanth Menon
Signed-off-by: Rafael J. Wysocki -
Since Operating Performance Points (OPP) data structures are specific
to device specific power management, be specific and rename opp_* data
structures in OPP library with dev_pm_opp_* equivalent.Affected structures are:
struct opp
enum opp_eventMinor checkpatch warning resulting of this change was fixed as well.
Reported-by: Randy Dunlap
Signed-off-by: Nishanth Menon
Signed-off-by: Rafael J. Wysocki -
Since Operating Performance Points (OPP) functions are specific to
device specific power management, be specific and rename opp_*
accessors in OPP library with dev_pm_opp_* equivalent.Affected functions are:
opp_get_voltage
opp_get_freq
opp_get_opp_count
opp_find_freq_exact
opp_find_freq_floor
opp_find_freq_ceil
opp_add
opp_enable
opp_disable
opp_get_notifier
opp_init_cpufreq_table
opp_free_cpufreq_tableReported-by: Randy Dunlap
Signed-off-by: Nishanth Menon
Acked-by: Viresh Kumar
Signed-off-by: Rafael J. Wysocki
17 Oct, 2013
1 commit
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Currently, code include opp.h twice. Remove one inclusion
of opp.hSigned-off-by: Manish Badarkhe
Signed-off-by: Rafael J. Wysocki
20 Aug, 2013
1 commit
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The dev_attrs field of struct class is going away soon, dev_groups
should be used instead. This converts the devfreq_class code to use the
correct field.Cc: MyungJoo Ham
Cc: Kyungmin Park
Signed-off-by: Greg Kroah-Hartman
