cpuidle entry and exit.
2. WFI is skipped for measuring the time.
3. Select the worst case time in a set of 10 cpuidle transactions,
with varying load.
Exit latency and min residency values are supplied as per HW team.
Signed-off-by: Chander Kashyap
Acked-by: Lorenzo Pieralisi
---
This patch
On Fri, Nov 7, 2014 at 5:28 PM, Lorenzo Pieralisi
wrote:
> On Wed, Nov 05, 2014 at 01:15:31PM +0000, Chander Kashyap wrote:
>> Exynos7 has core power down state where cores can be powered off
>> independently.
>
> "...has a core power down idle state...&quo
On Fri, Nov 7, 2014 at 5:28 PM, Lorenzo Pieralisi
lorenzo.pieral...@arm.com wrote:
On Wed, Nov 05, 2014 at 01:15:31PM +, Chander Kashyap wrote:
Exynos7 has core power down state where cores can be powered off
independently.
...has a core power down idle state...
This patch adds support
cpuidle entry and exit.
2. WFI is skipped for measuring the time.
3. Select the worst case time in a set of 10 cpuidle transactions,
with varying load.
Exit latency and min residency values are supplied as per HW team.
Signed-off-by: Chander Kashyap k.chan...@samsung.com
Acked-by: Lorenzo
. Select the worst case time in the set of 10 cpuidle transactions,
with varying load.
Exit latency and target residency are supplied as per HW team
Signed-off-by: Chander Kashyap
---
This patch has following dependencies:
- [PATCH v5 0/8] arch: arm64: Enable support for Samsung Exynos7
On Wed, Nov 5, 2014 at 4:42 PM, Lorenzo Pieralisi
wrote:
> On Wed, Nov 05, 2014 at 10:15:36AM +0000, Chander Kashyap wrote:
>> Exynos7 has core power down state where cores can be powered off
>> independently.
>> This patch adds support for this state.
>>
>> Entr
is averaged out for 10 cpuidle transactions with varying load.
Exit latency and target residency are supplied as per HW team
Signed-off-by: Chander Kashyap
---
This patch has following dependencies:
- [PATCH v5 0/8] arch: arm64: Enable support for Samsung Exynos7 SoC
Sorry for very late response. As i was on vacation so couldn’t reply.
On Tue, Oct 21, 2014 at 10:03 PM, Lorenzo Pieralisi
wrote:
> On Fri, Oct 17, 2014 at 10:43:59AM +0100, Chander Kashyap wrote:
>> Hi Lorenzo,
>>
>> On Wed, Oct 15, 2014 at 2:30 PM, Lorenzo Pieralisi
>&g
Sorry for very late response. As i was on vacation so couldn’t reply.
On Tue, Oct 21, 2014 at 10:03 PM, Lorenzo Pieralisi
lorenzo.pieral...@arm.com wrote:
On Fri, Oct 17, 2014 at 10:43:59AM +0100, Chander Kashyap wrote:
Hi Lorenzo,
On Wed, Oct 15, 2014 at 2:30 PM, Lorenzo Pieralisi
is averaged out for 10 cpuidle transactions with varying load.
Exit latency and target residency are supplied as per HW team
Signed-off-by: Chander Kashyap k.chan...@samsung.com
---
This patch has following dependencies:
- [PATCH v5 0/8] arch: arm64: Enable support for Samsung Exynos7
On Wed, Nov 5, 2014 at 4:42 PM, Lorenzo Pieralisi
lorenzo.pieral...@arm.com wrote:
On Wed, Nov 05, 2014 at 10:15:36AM +, Chander Kashyap wrote:
Exynos7 has core power down state where cores can be powered off
independently.
This patch adds support for this state.
Entry latency
. Select the worst case time in the set of 10 cpuidle transactions,
with varying load.
Exit latency and target residency are supplied as per HW team
Signed-off-by: Chander Kashyap k.chan...@samsung.com
---
This patch has following dependencies:
- [PATCH v5 0/8] arch: arm64: Enable support
Exynos7 has core power down state where cores can be powered off independently.
This patch adds support for this state.
Signed-off-by: Chander Kashyap
---
This patch has following dependencies:
- [PATCH v5 0/8] arch: arm64: Enable support for Samsung Exynos7 SoC
http
Exynos7 has core power down state where cores can be powered off independently.
This patch adds support for this state.
Signed-off-by: Chander Kashyap k.chan...@samsung.com
---
This patch has following dependencies:
- [PATCH v5 0/8] arch: arm64: Enable support for Samsung Exynos7 SoC
Hi Lorenzo,
On Wed, Oct 15, 2014 at 2:30 PM, Lorenzo Pieralisi
wrote:
> On Wed, Oct 15, 2014 at 07:35:20AM +0100, Chander Kashyap wrote:
>> Exynos7 has core power down state where cores can be powered off
>> independently.
>> This patch adds support for this state.
>
>
Hi Lorenzo,
On Wed, Oct 15, 2014 at 2:30 PM, Lorenzo Pieralisi
lorenzo.pieral...@arm.com wrote:
On Wed, Oct 15, 2014 at 07:35:20AM +0100, Chander Kashyap wrote:
Exynos7 has core power down state where cores can be powered off
independently.
This patch adds support for this state.
Please
Exynos7 has core power down state where cores can be powered off independently.
This patch adds support for this state.
Signed-off-by: Chander Kashyap
---
This patch has following dependencies:
- [PATCH v5 0/8] arch: arm64: Enable support for Samsung Exynos7 SoC
http
Exynos7 has core power down state where cores can be powered off independently.
This patch adds support for this state.
Signed-off-by: Chander Kashyap k.chan...@samsung.com
---
This patch has following dependencies:
- [PATCH v5 0/8] arch: arm64: Enable support for Samsung Exynos7 SoC
On Tue, Jul 15, 2014 at 5:45 PM, Tomasz Figa wrote:
> On 15.07.2014 13:19, Bartlomiej Zolnierkiewicz wrote:
>>
>> Hi,
>>
>> On Monday, July 14, 2014 11:54:48 AM Tomasz Figa wrote:
>>> Hi Kukjin,
>>>
>>> On 25.06.2014 13:52, Tomasz Figa wrote:
Due to recent consolidation of Exynos suspend and
On Tue, Jul 15, 2014 at 5:45 PM, Tomasz Figa t.f...@samsung.com wrote:
On 15.07.2014 13:19, Bartlomiej Zolnierkiewicz wrote:
Hi,
On Monday, July 14, 2014 11:54:48 AM Tomasz Figa wrote:
Hi Kukjin,
On 25.06.2014 13:52, Tomasz Figa wrote:
Due to recent consolidation of Exynos suspend and
Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
This patchset adds cpuidle support for Exynos5420 SoC based on
generic big.little cpuidle driver.
Tested on SMDK5420.
Rebased on 3.16-rc1
Changelog is in respective patches.
Chander Kashyap (5):
driver: cpuidle-big
From: Chander Kashyap
This driver will be used by many big.Little Soc's. As of now it does
string matching of hardcoded compatible string to init the driver. This
comparison list will keep on growing with addition of new SoC's.
Hence add of_device_id structure to collect the compatible strings
From: Chander Kashyap
The address of cpu power registers in pmu is based on cpu number
offsets. This function calculate the same. This is essentially
required in case of multi-cluster SoC's e.g Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Reviewed-by: Tomasz Figa
From: Chander Kashyap
Add "samsung,exynos5420" compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Reviewed-by: Tomasz Figa
Acked-by: Daniel Lezcano
---
Changes in v5: None
Changes i
From: Chander Kashyap
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Reviewed-by: Tomasz Figa
---
Changes in v6: None
Changes in v5
From: Chander Kashyap
Add support to select generic big-little cpuidle driver for Samsung Exynos
series SoC's. This is required for Exynos big-llittle SoC's eg, Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Reviewed-by: Tomasz Figa
Acked-by: Daniel Lezcano
From: Chander Kashyap
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Reviewed-by: Tomasz Figa
Acked-by: Daniel Lezcano
Hi Doug,
On 13 June 2014 20:40, Doug Anderson wrote:
> Chander,
>
> On Fri, Jun 13, 2014 at 4:54 AM, Chander Kashyap
> wrote:
>> This patch is effectively changing the mcpm_entry_point address from
>> nsbase + 0x1c to nsbase + 0x8
>>
>> Hence while inte
Hi Doug,
On 13 June 2014 20:40, Doug Anderson diand...@chromium.org wrote:
Chander,
On Fri, Jun 13, 2014 at 4:54 AM, Chander Kashyap k.chan...@samsung.com
wrote:
This patch is effectively changing the mcpm_entry_point address from
nsbase + 0x1c to nsbase + 0x8
Hence while integrating
From: Chander Kashyap chander.kash...@linaro.org
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan
From: Chander Kashyap chander.kash...@linaro.org
Add support to select generic big-little cpuidle driver for Samsung Exynos
series SoC's. This is required for Exynos big-llittle SoC's eg, Exynos5420.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan
From: Chander Kashyap chander.kash...@linaro.org
Add samsung,exynos5420 compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan...@samsung.com
Reviewed-by: Tomasz Figa t.f
From: Chander Kashyap chander.kash...@linaro.org
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan
From: Chander Kashyap chander.kash...@linaro.org
This driver will be used by many big.Little Soc's. As of now it does
string matching of hardcoded compatible string to init the driver. This
comparison list will keep on growing with addition of new SoC's.
Hence add of_device_id structure
From: Chander Kashyap chander.kash...@linaro.org
The address of cpu power registers in pmu is based on cpu number
offsets. This function calculate the same. This is essentially
required in case of multi-cluster SoC's e.g Exynos5420.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
This patchset adds cpuidle support for Exynos5420 SoC based on
generic big.little cpuidle driver.
Tested on SMDK5420.
Rebased on 3.16-rc1
Changelog is in respective patches.
Chander Kashyap (5):
driver: cpuidle-big
On Wed, Jun 11, 2014 at 8:58 PM, Kukjin Kim wrote:
> On 06/12/14 00:19, Doug Anderson wrote:
>>
>> Chander,
>>
>> On Tue, Jun 10, 2014 at 9:52 PM, Chander Kashyap
>> wrote:
>>>
>>> Hi Doug,
>>>
>>> On Tue, Jun 10, 2014 at
On Wed, Jun 11, 2014 at 8:58 PM, Kukjin Kim kgene@samsung.com wrote:
On 06/12/14 00:19, Doug Anderson wrote:
Chander,
On Tue, Jun 10, 2014 at 9:52 PM, Chander Kashyapk.chan...@samsung.com
wrote:
Hi Doug,
On Tue, Jun 10, 2014 at 9:19 PM, Nicolas Pitrenicolas.pi...@linaro.org
wrote:
On 11 June 2014 18:45, Lorenzo Pieralisi wrote:
> On Wed, Jun 11, 2014 at 01:14:21PM +0100, Chander Kashyap wrote:
>> On Wed, Jun 11, 2014 at 3:43 PM, Lorenzo Pieralisi
>> wrote:
>> > On Wed, Jun 11, 2014 at 05:52:10AM +0100, Chander Kashyap wrote:
>> >> Hi Do
On Wed, Jun 11, 2014 at 3:43 PM, Lorenzo Pieralisi
wrote:
> On Wed, Jun 11, 2014 at 05:52:10AM +0100, Chander Kashyap wrote:
>> Hi Doug,
>>
>> On Tue, Jun 10, 2014 at 9:19 PM, Nicolas Pitre
>> wrote:
>> > On Tue, 10 Jun 2014, Doug Anderson wrote:
>>
On Wed, Jun 11, 2014 at 3:43 PM, Lorenzo Pieralisi
lorenzo.pieral...@arm.com wrote:
On Wed, Jun 11, 2014 at 05:52:10AM +0100, Chander Kashyap wrote:
Hi Doug,
On Tue, Jun 10, 2014 at 9:19 PM, Nicolas Pitre nicolas.pi...@linaro.org
wrote:
On Tue, 10 Jun 2014, Doug Anderson wrote:
My S
On 11 June 2014 18:45, Lorenzo Pieralisi lorenzo.pieral...@arm.com wrote:
On Wed, Jun 11, 2014 at 01:14:21PM +0100, Chander Kashyap wrote:
On Wed, Jun 11, 2014 at 3:43 PM, Lorenzo Pieralisi
lorenzo.pieral...@arm.com wrote:
On Wed, Jun 11, 2014 at 05:52:10AM +0100, Chander Kashyap wrote:
Hi
Hi Doug,
On Tue, Jun 10, 2014 at 9:19 PM, Nicolas Pitre wrote:
> On Tue, 10 Jun 2014, Doug Anderson wrote:
>
>> My S-state knowledge is not strong, but I believe that Lorenzo's
>> questions matter if we're using S2 for CPUidle (where we actually turn
>> off power and hot unplug CPUs) but not
cure firmware do on reboot from suspend to RAM - in
>> > particular how is the "jump" address to bootloader/kernel set ?)
>>
>> Should be described above now.
>
> Thank you very much.
>
> Lorenzo
>
> --
> To unsubscribe from this list: send the
this list: send the line unsubscribe linux-samsung-soc
in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
--
with warm regards,
Chander Kashyap
--
To unsubscribe from this list: send the line unsubscribe linux-kernel
Hi Doug,
On Tue, Jun 10, 2014 at 9:19 PM, Nicolas Pitre nicolas.pi...@linaro.org wrote:
On Tue, 10 Jun 2014, Doug Anderson wrote:
My S-state knowledge is not strong, but I believe that Lorenzo's
questions matter if we're using S2 for CPUidle (where we actually turn
off power and hot unplug
On 28 May 2014 14:32, Daniel Lezcano wrote:
> On 05/28/2014 06:35 AM, Kukjin Kim wrote:
>>
>> Chander Kashyap wrote:
>>>
>>>
>>> On 26 May 2014 15:59, Tomasz Figa wrote:
>>>>
>>>> Hi Chander,
>>>>
>>>> O
On 28 May 2014 14:32, Daniel Lezcano daniel.lezc...@linaro.org wrote:
On 05/28/2014 06:35 AM, Kukjin Kim wrote:
Chander Kashyap wrote:
On 26 May 2014 15:59, Tomasz Figa tomasz.f...@gmail.com wrote:
Hi Chander,
On 16.05.2014 10:03, Chander Kashyap wrote:
Exynos5420 is a big-little Soc
On 26 May 2014 15:59, Tomasz Figa wrote:
> Hi Chander,
>
> On 16.05.2014 10:03, Chander Kashyap wrote:
>> Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
>>
>> This patchset adds cpuidle support for Exynos5420 SoC based on
>>
On 26 May 2014 15:59, Tomasz Figa tomasz.f...@gmail.com wrote:
Hi Chander,
On 16.05.2014 10:03, Chander Kashyap wrote:
Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
This patchset adds cpuidle support for Exynos5420 SoC based on
generic big.little cpuidle driver
On 19 May 2014 11:10, Chander Kashyap wrote:
> Hi Daniel/Kgene,
>
> On 16 May 2014 13:33, Chander Kashyap wrote:
>> Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
>>
>> This patchset adds cpuidle support for Exynos5420 SoC based on
>>
On 19 May 2014 11:10, Chander Kashyap chander.kash...@linaro.org wrote:
Hi Daniel/Kgene,
On 16 May 2014 13:33, Chander Kashyap chander.kash...@linaro.org wrote:
Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
This patchset adds cpuidle support for Exynos5420 SoC
Hi Daniel/Kgene,
On 16 May 2014 13:33, Chander Kashyap wrote:
> Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
>
> This patchset adds cpuidle support for Exynos5420 SoC based on
> generic big.little cpuidle driver.
>
> Tested on SMDK5420.
>
>
Hi Daniel/Kgene,
On 16 May 2014 13:33, Chander Kashyap chander.kash...@linaro.org wrote:
Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
This patchset adds cpuidle support for Exynos5420 SoC based on
generic big.little cpuidle driver.
Tested on SMDK5420
In of_init_opp_table function, if a failure to add an OPP is
detected, the count of OPPs, yet to be added is not updated.
Fix this by decrementing this count on failure as well.
Signed-off-by: Chander Kashyap
Signed-off-by: Inderpal Singh
---
drivers/base/power/opp.c |4 +---
1 file
On 16 May 2014 15:16, Rafael J. Wysocki wrote:
> On 5/16/2014 10:16 AM, Chander Kashyap wrote:
>>
>> On 22 April 2014 18:08, Chander Kashyap
>> wrote:
>>>
>>> In menu_select function we check for correction factor every time.
>>> If it is zero we
From: Chander Kashyap
This patch detects the duplicate OPP entries and discards them
Signed-off-by: Chander Kashyap
Signed-off-by: Inderpal Singh
---
Changes in v3:
- Modify the commit log
Changes in v2:
- Reorder check for duplicate opp
drivers/base/power/opp.c | 13
On 16 May 2014 13:54, Viresh Kumar wrote:
> On 16 May 2014 13:43, Chander Kashyap wrote:
>> From: Chander Kashyap
>>
>> It may be possible to unregister and re-register the cpufreq driver.
>> One such example is arm big-little IKS cpufreq driver. While
>> re-
The address of cpu power registers in pmu is based on cpu number
offsets. This function calculate the same. This is essentially
required in case of multi-cluster SoC's e.g Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
arch/arm/mach-exynos/regs-pmu.h |9
Add support to select generic big-little cpuidle driver for Samsung Exynos
series SoC's. This is required for Exynos big-llittle SoC's eg, Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v4:
1. Typo fixed from SOC_EXYNOS5420 to ARCH_EXYNOS
://www.spinics.net/lists/arm-kernel/msg331100.html
Changelog is in respective patches.
Chander Kashyap (5):
driver: cpuidle-big-little: add of_device_id structure
arm: exynos: add generic function to calculate cpu number
cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little
driver
this driver.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
drivers/cpuidle/cpuidle-big_little.c | 11 ++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/cpuidle/cpuidle-big_little.c
b/drivers/cpuidle/cpuidle-big_little.c
index b45fc62..4cd02bd 100644
Add "samsung,exynos5420" compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
Changes in v5: None
Changes in v4: None
Changes in v3:
1. Add compati
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v6: None
Changes in v5:
1. Add comment to address cache access
On 22 April 2014 18:08, Chander Kashyap wrote:
> In menu_select function we check for correction factor every time.
> If it is zero we are initializing to unity. Hence move it to init function
> and initialise by unity, hence avoid repeated comparisons.
>
> Signed-off-by:
From: Chander Kashyap
It may be possible to unregister and re-register the cpufreq driver.
One such example is arm big-little IKS cpufreq driver. While
re-registering the driver, same OPPs may get added again.
This patch detects the duplicacy and discards them.
Signed-off-by: Chander Kashyap
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
Changes in v6:
1. Move cpuidle registration
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan...@samsung.com
Acked-by: Daniel Lezcano daniel.lezc
From: Chander Kashyap k.chan...@samsung.com
It may be possible to unregister and re-register the cpufreq driver.
One such example is arm big-little IKS cpufreq driver. While
re-registering the driver, same OPPs may get added again.
This patch detects the duplicacy and discards them.
Signed-off
On 22 April 2014 18:08, Chander Kashyap chander.kash...@linaro.org wrote:
In menu_select function we check for correction factor every time.
If it is zero we are initializing to unity. Hence move it to init function
and initialise by unity, hence avoid repeated comparisons.
Signed-off
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan...@samsung.com
---
Changes in v6: None
Changes in v5
Add samsung,exynos5420 compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan...@samsung.com
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
---
Changes in v5: None
this driver.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan...@samsung.com
---
drivers/cpuidle/cpuidle-big_little.c | 11 ++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/cpuidle/cpuidle-big_little.c
b/drivers/cpuidle
://www.spinics.net/lists/arm-kernel/msg331100.html
Changelog is in respective patches.
Chander Kashyap (5):
driver: cpuidle-big-little: add of_device_id structure
arm: exynos: add generic function to calculate cpu number
cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little
driver
Add support to select generic big-little cpuidle driver for Samsung Exynos
series SoC's. This is required for Exynos big-llittle SoC's eg, Exynos5420.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan...@samsung.com
---
Changes in v4:
1. Typo
The address of cpu power registers in pmu is based on cpu number
offsets. This function calculate the same. This is essentially
required in case of multi-cluster SoC's e.g Exynos5420.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan...@samsung.com
On 16 May 2014 13:54, Viresh Kumar viresh.ku...@linaro.org wrote:
On 16 May 2014 13:43, Chander Kashyap chander.kash...@linaro.org wrote:
From: Chander Kashyap k.chan...@samsung.com
It may be possible to unregister and re-register the cpufreq driver.
One such example is arm big-little IKS
From: Chander Kashyap k.chan...@samsung.com
This patch detects the duplicate OPP entries and discards them
Signed-off-by: Chander Kashyap k.chan...@samsung.com
Signed-off-by: Inderpal Singh inderpa...@samsung.com
---
Changes in v3:
- Modify the commit log
Changes in v2
On 16 May 2014 15:16, Rafael J. Wysocki rafael.j.wyso...@intel.com wrote:
On 5/16/2014 10:16 AM, Chander Kashyap wrote:
On 22 April 2014 18:08, Chander Kashyap chander.kash...@linaro.org
wrote:
In menu_select function we check for correction factor every time.
If it is zero we
In of_init_opp_table function, if a failure to add an OPP is
detected, the count of OPPs, yet to be added is not updated.
Fix this by decrementing this count on failure as well.
Signed-off-by: Chander Kashyap k.chan...@samsung.com
Signed-off-by: Inderpal Singh inderpa...@samsung.com
---
drivers
Hi Tomasz,
On 16 May 2014 02:56, Tomasz Figa wrote:
> Hi Chander,
>
> On 14.05.2014 10:03, Chander Kashyap wrote:
>> Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle
>> driver.
>> Hence do not allow exynos cpuidle driver registration for E
On 15 May 2014 13:57, Viresh Kumar wrote:
> On 15 May 2014 13:55, Chander Kashyap wrote:
>> Then in that case the caller must take care for two type of errors:
>> -EEXIST and -ENOMEM
>
> Actually, success: (0 or -EEXIST), failure: Anything else.
Yes exactly. All u
On 14 May 2014 19:57, Nishanth Menon wrote:
> On 05/14/2014 06:08 AM, Viresh Kumar wrote:
>> On 14 May 2014 15:01, Chander Kashyap wrote:
>>>> say we do at this point:
>>>> if (new_opp->rate == opp->rate) {
>>>> dev_err(dev, "%s: attempt
On 14 May 2014 19:57, Nishanth Menon n...@ti.com wrote:
On 05/14/2014 06:08 AM, Viresh Kumar wrote:
On 14 May 2014 15:01, Chander Kashyap chander.kash...@linaro.org wrote:
say we do at this point:
if (new_opp-rate == opp-rate) {
dev_err(dev, %s: attempt to add duplicate OPP entry (rate=%ld
On 15 May 2014 13:57, Viresh Kumar viresh.ku...@linaro.org wrote:
On 15 May 2014 13:55, Chander Kashyap chander.kash...@linaro.org wrote:
Then in that case the caller must take care for two type of errors:
-EEXIST and -ENOMEM
Actually, success: (0 or -EEXIST), failure: Anything else.
Yes
Hi Tomasz,
On 16 May 2014 02:56, Tomasz Figa tomasz.f...@gmail.com wrote:
Hi Chander,
On 14.05.2014 10:03, Chander Kashyap wrote:
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle
driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed
Hi Daniel,
On 14 May 2014 15:26, Daniel Lezcano wrote:
> On 05/14/2014 10:03 AM, Chander Kashyap wrote:
>>
>> Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
>>
>> This patchset adds cpuidle support for Exynos5420 SoC based on
>>
Hi Nishant,
On 13 May 2014 18:53, Nishanth Menon wrote:
> On Tue, May 13, 2014 at 2:41 AM, [Chander Kashyap
> wrote:
>> From: Chander Kashyap
>>
>> It may be possible to unregister and re-register the cpufreq driver.
>> One such example is arm big-little I
The address of cpu power registers in pmu is based on cpu number
offsets. This function calculate the same. This is essentially
required in case of multi-cluster SoC's e.g Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
arch/arm/mach-exynos/regs-pmu.h |9
Add support to select generic big-little cpuidle driver for Samsung Exynos
series SoC's. This is required for Exynos big-little SoC's eg, Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v4:
1. Typo fixed from SOC_EXYNOS5420 to ARCH_EXYNOS
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
arch/arm/mach-exynos/cpuidle.c |3 +++
1 file
Add "samsung,exynos5420" compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
Changes in v4: None
Changes in v3:
1. Add compatible string to of_device_id ta
://www.spinics.net/lists/arm-kernel/msg331100.html
Changelog is in respective patches.
Chander Kashyap (5):
driver: cpuidle-big-little: add of_device_id structure
arm: exynos: add generic function to calculate cpu number
cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little
driver
this driver.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
drivers/cpuidle/cpuidle-big_little.c | 11 ++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/cpuidle/cpuidle-big_little.c
b/drivers/cpuidle/cpuidle-big_little.c
index b45fc62..4cd02bd 100644
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v5:
1. Add comment to address cache access while c-bit
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan...@samsung.com
---
Changes in v5:
1. Add
://www.spinics.net/lists/arm-kernel/msg331100.html
Changelog is in respective patches.
Chander Kashyap (5):
driver: cpuidle-big-little: add of_device_id structure
arm: exynos: add generic function to calculate cpu number
cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little
driver
Add samsung,exynos5420 compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan...@samsung.com
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
---
Changes in v4: None
this driver.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan...@samsung.com
---
drivers/cpuidle/cpuidle-big_little.c | 11 ++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/cpuidle/cpuidle-big_little.c
b/drivers/cpuidle
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap chander.kash...@linaro.org
Signed-off-by: Chander Kashyap k.chan...@samsung.com
Acked-by: Daniel Lezcano daniel.lezc
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