Commit 4294a779bd8d ("PM / devfreq: exynos-bus: Convert to use
dev_pm_opp_set_rate()") introduced errors:
exynos-bus: new bus device registered: soc:bus_wcore ( 84000 KHz ~ 40 KHz)
exynos-bus: new bus device registered: soc:bus_noc ( 67000 KHz ~ 10 KHz)
exynos-bus: new bus device registered
Reuse opp core code for setting bus clock and voltage. As a side
effect this allow usage of coupled regulators feature (required
for boards using Exynos5422/5800 SoCs) because dev_pm_opp_set_rate()
uses regulator_set_voltage_triplet() for setting regulator voltage
while the old code used regulator_
Hi,
The main purpose of this patch series is to add coupled regulators for
Exynos5422/5800 to keep constrain on voltage difference between vdd_arm
and vdd_int to be at most 300mV. In exynos-bus instead of using
regulator_set_voltage_tol() with default voltage tolerance it should be
used regulator_
Regulators should be enabled before clocks to avoid h/w hang. This
require change in exynos_bus_probe() to move exynos_bus_parse_of()
after exynos_bus_parent_parse_of() and change in error handling.
Similar change is needed in exynos_bus_exit() where clock should be
disabled before regulators.
Sig
From: Marek Szyprowski
Declare Exynos5422/5800 voltage ranges for opp points for big cpu core and
bus wcore and couple their voltage supllies as vdd_arm and vdd_int should
be in 300mV range.
Signed-off-by: Marek Szyprowski
[k.konieczny: add missing patch description]
Signed-off-by: Kamil Koniec
Remove unused DT property "exynos,voltage-tolerance".
Signed-off-by: Kamil Konieczny
Acked-by: Chanwoo Choi
---
Documentation/devicetree/bindings/devfreq/exynos-bus.txt | 2 --
1 file changed, 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
b/Documentation
Remove unused DT property "exynos,voltage-tolerance".
Signed-off-by: Kamil Konieczny
Acked-by: Chanwoo Choi
---
Documentation/devicetree/bindings/devfreq/exynos-bus.txt | 2 --
1 file changed, 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
b/Documentation
Reuse opp core code for setting bus clock and voltage. As a side
effect this allow usage of coupled regulators feature (required
for boards using Exynos5422/5800 SoCs) because dev_pm_opp_set_rate()
uses regulator_set_voltage_triplet() for setting regulator voltage
while the old code used regulator_
Regulators should be enabled before clocks to avoid h/w hang. This
require change in exynos_bus_probe() to move exynos_bus_parse_of()
after exynos_bus_parent_parse_of() and change in error handling.
Similar change is needed in exynos_bus_exit() where clock should be
disabled before regulators.
Sig
Both functions exynos_bus_passive_target() and exynos_bus_target()
have the same code, so remove exynos_bus_passive_target(). In
exynos_bus_probe() replace it with exynos_bus_target.
Suggested-by: Chanwoo Choi
Signed-off-by: Kamil Konieczny
---
This patch is new to this series.
---
drivers/dev
From: Marek Szyprowski
Declare Exynos5422/5800 voltage ranges for opp points for big cpu core and
bus wcore and couple their voltage supllies as vdd_arm and vdd_int should
be in 300mV range.
Signed-off-by: Marek Szyprowski
[k.konieczny: add missing patch description]
Signed-off-by: Kamil Koniec
Hi,
The main purpose of this patch series is to add coupled regulators for
Exynos5422/5800 to keep constrain on voltage difference between vdd_arm
and vdd_int to be at most 300mV. In exynos-bus instead of using
regulator_set_voltage_tol() with default voltage tolerance it should be
used regulator_
From: Marek Szyprowski
Declare Exynos5422/5800 voltage ranges for opp points for big cpu core and
bus wcore and couple their voltage supllies as vdd_arm and vdd_int should
be in 300mV range.
Signed-off-by: Marek Szyprowski
[k.konieczny: add missing patch description]
Signed-off-by: Kamil Koniec
Add enable regulators to dev_pm_opp_set_regulators() and disable
regulators to dev_pm_opp_put_regulators(). Even if bootloader
leaves regulators enabled, they should be enabled in kernel in
order to increase the reference count.
Signed-off-by: Kamil Konieczny
---
Changes in v3:
- corrected error
Remove unused DT property "exynos,voltage-tolerance".
Signed-off-by: Kamil Konieczny
Acked-by: Chanwoo Choi
---
Documentation/devicetree/bindings/devfreq/exynos-bus.txt | 2 --
1 file changed, 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
b/Documentation
Reuse opp core code for setting bus clock and voltage. As a side
effect this allow useage of coupled regulators feature (required
for boards using Exynos5422/5800 SoCs) because dev_pm_opp_set_rate()
uses regulator_set_voltage_triplet() for setting regulator voltage
while the old code used regulator
Regulators should be enabled before clocks to avoid h/w hang. This
require change in exynos_bus_probe() to move exynos_bus_parse_of()
after exynos_bus_parent_parse_of() and change in enabling sequence
of regulator and clock in exynos_bus_parse_of(). Similar change is
needed in exynos_bus_exit() whe
Hi,
The main purpose of this patch series is to add coupled regulators for
Exynos5422/5800 to keep constrain on voltage difference between vdd_arm
and vdd_int to be at most 300mV. In exynos-bus instead of using
regulator_set_voltage_tol() with default voltage tolerance it should be
used regulator_
From: Marek Szyprowski
Declare Exynos5422/5800 voltage ranges for opp points for big cpu core and
bus wcore and couple their voltage supllies as vdd_arm and vdd_int should
be in 300mV range.
Signed-off-by: Marek Szyprowski
Signed-off-by: Kamil Konieczny
---
arch/arm/boot/dts/exynos5420.dtsi
From: Kamil Konieczny
Reuse opp core code for setting bus clock and voltage. As a side
effect this allow useage of coupled regulators feature (required
for boards using Exynos5422/5800 SoCs) because dev_pm_opp_set_rate()
uses regulator_set_voltage_triplet() for setting regulator voltage
while the
From: Kamil Konieczny
Add enable regulators to dev_pm_opp_set_regulators() and disable
regulators to dev_pm_opp_put_regulators(). This prepares for
converting exynos-bus devfreq driver to use dev_pm_opp_set_rate().
Signed-off-by: Kamil Konieczny
---
drivers/opp/core.c | 13 +
1 fil
From: Kamil Konieczny
Hi,
The main purpose of this patch series is to add coupled regulators for
Exynos5422/5800 to keep constrain on voltage difference between vdd_arm
and vdd_int to be at most 300mV. In exynos-bus instead of using
regulator_set_voltage_tol() with default voltage tolerance it s
22 matches
Mail list logo
