This patch adds the bus device tree nodes for INT (Internal) block
to enable the AMBA bus frequency scaling and add the NoC (Network on Chip)
Probe Device Tree node to measure the bandwidth for AMBA AXI bus.
The WCORE bus bus is parent device in INT block using VDD_INT.
Signed-off-by: Chanwoo Choi <[email protected]>
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the AMBA bus nodes using VDD_INT for Exynos542x SoC.
Exynos542x has the following AMBA buses to translate data between
DRAM and sub-blocks.
Following list specifies the detailed correlation between sub-block and clock:
- CLK_DOUT_ACLK400_WCORE clock for WCORE's AXI
- CLK_DOUT_ACLK100_NOC for NoC (Network on Chip)'s AXI
- CLK_DOUT_PCLK200_FSYS for FSYS's APB
- CLK_DOUT_ACLK200_FSYS for FSYS's AXI
- CLK_DOUT_ACLK200_FSYS2 for FSYS2's AXI
- CLK_DOUT_ACLK333 for MFC's AXI
- CLK_DOUT_ACLK266 for GEN's AXI
- CLK_DOUT_ACLK66 for PERIC/PERIR's AXI
- CLK_DOUT_ACLK333_G2D for G2D's AXI
- CLK_DOUT_ACLK266_G2D for ACP's AXI
- CLK_DOUT_ACLK300_JPEG for JPEG's AXI
- CLK_DOUT_ACLK166 for JPEG's APB
- CLK_DOUT_ACLK300_DISP1 for FIMD's AXI
- CLK_DOUT_ACLK400_DISP1 for DISP1's AXI
- CLK_DOUT_ACLK300_GSCL for GSCL Scaler's AXI
- CLK_DOUT_ACLK400_MSCL for MSCL's AXI
Signed-off-by: Chanwoo Choi <[email protected]>
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the NoCP (Network on Chip Probe) Device Tree node
to measure the bandwidth of memory and g3d in Exynos542x SoC.
Signed-off-by: Chanwoo Choi <[email protected]>
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the bus device tree nodes for both MIF (Memory) and INT
(Internal) block to enable the bus frequency.
The DMC bus is parent device in MIF block using VDD_MIF and the LEFTBUS
bus is parent device in INT block using VDD_INT.
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch expands the voltage range of buck1/3 regulator due to as following:
- MIF (Memory Interface) bus frequency needs the range of '900 - 1100 mV'.
- INT (Internal) bus frequency needs the range of '900 - 1050 mV'.
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the bus device-tree nodes of INT (internal) block
to enable the bus frequency scaling. The following sub-blocks share
the VDD_INT power source:
- LEFTBUS (parent device)
- RIGHTBUS
- PERIL
- LCD0
- FSYS
- MCUISP / ISP
- MFC
The LEFTBUS is parent device with devfreq ondemand governor
and the rest of devices depend on the LEFTBUS device.
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the exynos4412-ppmu-common.dtsi to remove duplicate PPMU nodes
because exynos3250-rinato/monk, exynos4412-trats2/odroidu3 has the same
PPMU device tree node.
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the bus nodes for Exynos4210 SoC. Exynos4210 SoC has
one power line for all buses to translate data between DRAM and sub-blocks.
Following list specifies the detailed relation between DRAM and sub-blocks:
- DMC/ACP clock for DMC (Dynamic Memory Controller)
- ACLK200 clock for LCD0
- ACLK100 clock for PERIL/PERIR/MFC(PCLK)
- ACLK160 clock for CAM/TV/LCD0/LCD1
- ACLK133 clock for FSYS/GPS
- GDL/GDR clock for LEFTBUS/RIGHTBUS
- SCLK_MFC clock for MFC
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the bus nodes using VDD_INT for Exynos4x12 SoC.
Exynos4x12 has the following AXI buses to translate data between
DRAM and sub-blocks.
Following list specifies the detailed relation between DRAM and sub-blocks:
- ACLK100 clock for PERIL/PERIR/MFC(PCLK)
- ACLK160 clock for CAM/TV/LCD
: The minimum clock of ACLK160 should be over 160MHz.
When drop the clock under 160MHz, show the broken image.
- ACLK133 clock for FSYS
- GDL clock for LEFTBUS
- GDR clock for RIGHTBUS
- SCLK_MFC clock for MFC
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the bus nodes using VDD_MIF for Exynos4x12 SoC.
Exynos4x12 has the following AXI buses to translate data
between DRAM and DMC/ACP/C2C.
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the bus nodes using VDD_INT for Exynos3250 SoC.
Exynos3250 has following AXI buses to translate data between
DRAM and sub-blocks.
Following list specifies the detailed relation between DRAM and sub-blocks:
- ACLK400 clock for MCUISP
- ACLK266 clock for ISP
- ACLK200 clock for FSYS
- ACLK160 clock for LCD0
- ACLK100 clock for PERIL
- GDL clock for LEFTBUS
- GDR clock for RIGHTBUS
- SCLK_MFC clock for MFC
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the DMC (Dynamic Memory Controller) bus frequency node
which includes the devfreq-events and regulator properties. The bus
frequency support the DVFS (Dynamic Voltage Frequency Scaling) feature
with ondemand governor.
The devfreq-events (ppmu_dmc0*) can monitor the utilization of DMC bus
on runtime and the buck1_reg (VDD_MIF power line) supplies the power to
the DMC block.
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Acked-by: MyungJoo Ham <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the DMC (Dynamic Memory Controller) bus node for Exynos3250 SoC.
The DMC is an AMBA AXI-compliant slave to interface external JEDEC standard
SDRAM devices. The bus includes the OPP tables and the source clock for DMC
block.
Following list specifies the detailed relation between the clock and DMC block:
- The source clock of DMC block : div_dmc
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Acked-by: MyungJoo Ham <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the detailed corrleation between sub-blocks and power line
for Exynos5422.
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: MyungJoo Ham <[email protected]>
This patch use the phandle to find the instance of devfreq-event device in
Device Tree when calling the devfreq_event_get_edev_by_phandle() because there
is two type devfreq-event devices as following:
First case, exynos-ppmu.c driver provides the maximum four event of each PPMU.
So, when getting the instance of devfreq-event device, using the unique name of
struct devfreq_event_desc.
Second case, exynos-nocp.c driver provide the only one event of each NoC Probe
device. So, when getting the instance of devfreq-event device, using the
phandle of each NoC probe device.
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: MyungJoo Ham <[email protected]>
This patch adds NoC (Network on Chip) Probe driver which provides
the primitive values to get the performance data. The packets that the Network
on Chip (NoC) probes detects are transported over the network infrastructure.
Exynos542x bus has multiple NoC probes to provide bandwidth information about
behavior of the SoC that you can use while analyzing system performance.
Signed-off-by: Chanwoo Choi <[email protected]>
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
This patch adds the 'BUS FREQUENCY DRIVER FOR SAMSUNG EXYNOS' entry to review the
patches as maintainer. I can access the all datasheet of Exynos SoC and test it
on some Exynos-based board. Patches will be picked up by DEVFREQ maintainer
on devfreq git repository.
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
This patch removes the unused exynos4/5 busfreq driver. Instead,
generic exynos-bus frequency driver support the all Exynos SoCs.
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
This patch adds the detailed correlation between sub-blocks and power line
for Exynos3250, Exynos4210 and Exynos4x12.
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: MyungJoo Ham <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
This patch updates the documentation for passive bus devices and adds the
detailed example of Exynos3250.
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: MyungJoo Ham <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
This patch adds the support of bus frequency feature for sub-blocks which share
the one power line. If each bus depends on the power line, each bus is not able
to change the voltage by oneself. To optimize the power-consumption on runtime,
some buses using the same power line should change the source clock and
regulator at the same time. So, this patch uses the passive governor to support
the bus frequency for all buses which sharing the one power line.
For example,
Exynos3250 include the two power line for AXI buses as following:
: VDD_MIF : MIF (Memory Interface) provide the DMC (Dynamic Memory Controller)
with the power (regulator).
: VDD_INT : INT (Internal) provide the various sub-blocks with the power
(regulator).
Each bus is included in as follwoing block. In the case of VDD_MIF, only DMC bus
use the power line. So, there is no any depencency between buese. But, in the
case of VDD_INT, various buses share the one power line of VDD_INT. We need to
make the depenency between buses. When using passive governor, there is no
problem to support the bus frequency as DVFS for all buses. One bus should be
operated as the parent bus device which gathering the current load of INT block
and then decides the new frequency with some governors except of passive
governor. After deciding the new frequency by the parent bus device, the rest
bus devices will change the each source clock according to new frequency of the
parent bus device.
- MIF (Memory Interface) block
: VDD_MIF |--- DMC
- INT (Internal) block
: VDD_INT |--- LEFTBUS (parent)
|--- PERIL
|--- MFC
|--- G3D
|--- RIGHTBUS
|--- FSYS
|--- LCD0
|--- PERIR
|--- ISP
|--- CAM
Signed-off-by: Chanwoo Choi <[email protected]>
[tjakobi: Reported debugfs error during booting and cw00.choi fix it.]
Reported-by: Tobias Jakobi <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
This patch adds the new passive governor for DEVFREQ framework. The following
governors are already present and used for DVFS (Dynamic Voltage and Frequency
Scaling) drivers. The following governors are independently used for one device
driver which don't give the influence to other device drviers and also don't
receive the effect from other device drivers.
- ondemand / performance / powersave / userspace
The passive governor depends on operation of parent driver with specific
governos extremely and is not able to decide the new frequency by oneself.
According to the decided new frequency of parent driver with governor,
the passive governor uses it to decide the appropriate frequency for own
device driver. The passive governor must need the following information
from device tree:
- the source clock and OPP tables
- the instance of parent device
For exameple,
there are one more devfreq device drivers which need to change their source
clock according to their utilization on runtime. But, they share the same
power line (e.g., regulator). So, specific device driver is operated as parent
with ondemand governor and then the rest device driver with passive governor
is influenced by parent device.
Suggested-by: Myungjoo Ham <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
[tjakobi: Reported RCU locking issue and cw00.choi fix it]
Reported-by: Tobias Jakobi <[email protected]>
[linux.amoon: Reported possible recursive locking and cw00.choi fix it]
Reported-by: Anand Moon <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
This patch adds the new DEVFREQ_TRANSITION_NOTIFIER notifier to send
the notification when the frequency of device is changed.
This notifier has two state as following:
- DEVFREQ_PRECHANGE : Notify it before chaning the frequency of device
- DEVFREQ_POSTCHANGE : Notify it after changed the frequency of device
And this patch adds the resourced-managed function to release the resource
automatically when error happen.
Signed-off-by: Chanwoo Choi <[email protected]>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
This patch adds the new devfreq_get_devfreq_by_phandle() OF helper function
which can find the instance of devfreq device by using phandle ("devfreq").
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
This patch adds the documentation for generic exynos bus frequency
driver.
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
This patch adds the generic exynos bus frequency driver for AMBA AXI bus
of sub-blocks in exynos SoC with DEVFREQ framework. The Samsung Exynos SoC
have the common architecture for bus between DRAM and sub-blocks in SoC.
This driver can support the generic bus frequency driver for Exynos SoCs.
In devicetree, Each bus block has a bus clock, regulator, operation-point
and devfreq-event devices which measure the utilization of each bus block.
Signed-off-by: Chanwoo Choi <[email protected]>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
This patch fixes the broken serial log when changing the clock source
of uart device. Before disabling the original clock source, this patch
enables the new clock source to protect the clock off state for a split second.
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Marek Szyprowski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This patch adds the clock id for ACLK clock which is source clock
of AMBA AXI bus. This clock should be handled in the bus frequency
scaling driver.
Signed-off-by: Chanwoo Choi <[email protected]>
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Sylwester Nawrocki <[email protected]>
This patch adds the clock id for ACLK clock of Exynos542x SoC.
ACLK clock means the source clock of AMBA AXI bus. This clock
id should be used for Bus frequency scaling.
Signed-off-by: Chanwoo Choi <[email protected]>
Tested-by: Markus Reichl <[email protected]>
Tested-by: Anand Moon <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Sylwester Nawrocki <[email protected]>
This patch adds the Device Tree source for Samsung ARTIK5 module[1]
based on Exynos3250 SoC. The ARTIK5 module includes the following
devices:
- Application Processor (Samsung Exynos3250)
- WiFi/BT Combo chip (Broadcom4354)
- PMIC (Samsung S2MPS14)
- eMMC (4GB)
- DRAM LPDDR3 (512MB)
- Connectors pin (60 Pins x 3 set)
Also, this patch adds the ARTIK5 evaluation board[2] dts file which includes
the ARTIK5 module[1] and have the devices such as sound codec, sd card port,
ethernet port, uart port and so on.
[1] https://www.artik.io/hardware/artik-5
[2] http://www.digikey.com/product-search/en?FV=ffecca14
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Jaehoon Chung <[email protected]>
Signed-off-by: Andi Shyti <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the MSHC2 (Mobile Storage Host Controller) Device Tree node for
Exynos3250 SoC.
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds initial pin configuration of MMC2 device on exynos3250-monk
board because the MMC2 gpio pin (gpk2[0-6]) are NC (not connected) state.
Suggested-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds initial pin configuration using pinctrl subsystem
to reduce leakage power-consumption of gpio pins in normal state.
All pins included in this patch are NC (not connected) pin.
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
This patch adds the new clock id for both UART2 and MM2 device
for Exynos3250 SoC.
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Sylwester Nawrocki <[email protected]>
This patch adds the new EXTCON_CHG_USB_SDP connector to support SDP (Standard
Downstream Port) USB charging port. The commit 11eecf910b ("extcon: Modify
the id and name of external connector") add the new EXTCON_CHG_USB_SDP
connector which support the both data transfer and usb charging at the same
time.
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
This patch adds the devfreq-event[1] entry to review the patches
as just supporter. Patches will be picked up by Myungjoo Ham on
devfreq git repository.
[1] https://lkml.org/lkml/2015/1/25/573
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Myungjoo Ham <[email protected]>
This patch adds the missing git repository infomation and directory for
devfreq. When using get_maintainer.pl, the result should include the
correct maintainer information.
Suggested-by: Joe Perches <[email protected]>
[cw00.chio: Add missing directory for devfreq]
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Myungjoo Ham <[email protected]>
This patch initialize the freq_table array of each devfreq device by using
the devfreq_set_freq_table(). If freq_table is NULL, the devfreq framework
is not able to support the frequency transtion information through sysfs.
The OPP core uses the integer type for the number of opps in the opp list
and uses the 'unsigned long' type for each frequency. So, this patch
modifies the type of some variable as following:
- the type of freq_table : unsigned int -> unsigned long
- the type of max_state : unsigned int -> int
- Corrected types, format strings, mutex usages by MyungJoo
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
This patch adds the 'show_one' macro to simplify the duplicate code
of both max_freq_show() and min_freq_show().
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
This patch just fixes following error and warning by using
scripts/checkpatch.pl.
- Follwoing issue from checkpatch.pl:
ERROR: space prohibited before that close parenthesis ')'
+ if (count < 0 ) {
WARNING: line over 80 characters
+ ptr = devres_alloc(devm_devfreq_event_release, sizeof(*ptr), GFP_KERNEL);
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
This patch just removes the error log when
devfreq_event_get_edev_by_phandle() fail to get the instance of
devfreq-event device. It is related to sequence of the probe() of each
driver. So, this error log might show the always during kernel booting.
Each driver using this function can show the appropriate error log.
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
Add the missing extcon directory to maintain them. When using
get_maintainer.pl, the result should include the correct maintainer
information.
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This patch modifies the id and name of external connector with the
additional prefix to clarify both attribute and meaning of external
connector as following:
- EXTCON_CHG_* mean the charger connector.
- EXTCON_JACK_* mean the jack connector.
- EXTCON_DISP_* mean the display port connector.
Following table show the new name of external connector with old name:
--------------------------------------------------
Old extcon name | New extcon name |
--------------------------------------------------
EXTCON_TA | EXTCON_CHG_USB_DCP |
EXTCON_CHARGE_DOWNSTREAM| EXTCON_CHG_USB_CDP |
EXTCON_FAST_CHARGER | EXTCON_CHG_USB_FAST |
EXTCON_SLOW_CHARGER | EXTCON_CHG_USB_SLOW |
--------------------------------------------------
EXTCON_MICROPHONE | EXTCON_JACK_MICROPHONE |
EXTCON_HEADPHONE | EXTCON_JACK_HEADPHONE |
EXTCON_LINE_IN | EXTCON_JACK_LINE_IN |
EXTCON_LINE_OUT | EXTCON_JACK_LINE_OUT |
EXTCON_VIDEO_IN | EXTCON_JACK_VIDEO_IN |
EXTCON_VIDEO_OUT | EXTCON_JACK_VIDEO_OUT |
EXTCON_SPDIF_IN | EXTCON_JACK_SPDIF_IN |
EXTCON_SPDIF_OUT | EXTCON_JACK_SPDIF_OUT |
--------------------------------------------------
EXTCON_HMDI | EXTCON_DISP_HDMI |
EXTCON_MHL | EXTCON_DISP_MHL |
EXTCON_DVI | EXTCON_DISP_DVI |
EXTCON_VGA | EXTCON_DISP_VGA |
--------------------------------------------------
And, when altering the name of USB charger connector, EXTCON refers to the
"Battery Charging v1.2 Spec and Adopters Agreement"[1] to use the standard
name of USB charging port as following. Following name of USB charging port
are already used in power_supply subsystem. We chan check it on patch[2].
- EXTCON_CHG_USB_SDP /* Standard Downstream Port */
- EXTCON_CHG_USB_DCP /* Dedicated Charging Port */
- EXTCON_CHG_USB_CDP /* Charging Downstream Port */
- EXTCON_CHG_USB_ACA /* Accessory Charger Adapter */
[1] www.usb.org/developers/docs/devclass_docs/BCv1.2_070312.zip
[2] commit 85efc8a18c ("power_supply: Add types for USB chargers")
Signed-off-by: Chanwoo Choi <[email protected]>
[ckeepax: For the Arizona changes]
Acked-by: Charles Keepax <[email protected]>
Reviewed-by: Roger Quadros <[email protected]>
This patch uses the descriptor-based GPIO interface (gpiod_* API) instead of
legacy gpio_* API and add the internal gpio_extcon_init() to handle
all gpio-related tasks.
Signed-off-by: Chanwoo Choi <[email protected]>
This patch fixes the minor coding style about indentation and removes the
unused fields from struct gpio_extcon_platform_data.
Signed-off-by: Chanwoo Choi <[email protected]>
The commit 2a9de9c0 ("extcon: Use the unique id for external connector instead
of string") defines the unique id of each external connector to identify the
type of external connector instead of string name. So, devm_extcon_dev_allocate()
should include the second parameter (unsigned int *supported_cable). This patch
adds the supported_cable parameter which is passed by platform data.
Signed-off-by: Chanwoo Choi <[email protected]>
There are duplicate data between struct gpio_extcon_data and struct
gpio_extcon_platform_data. This patch removes them from struct gpio_extcon_data.
Instead, this patch add pdata field to struct gpio_extcon_data.
Signed-off-by: Chanwoo Choi <[email protected]>
This patch updates the documentation to include the information of PPMUv2.
The PPMUv2 is used for Exynos5433 and Exynos7420 to monitor the performance
of each IP in Exynos SoC.
Cc: MyungJoo Ham <[email protected]>
Cc: Kyungmin Park <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
This patch adds the support for PPMU (Platform Performance Monitoring Unit)
version 2.0 for Exynos5433 SoC. Exynos5433 SoC must need PPMUv2 which is
quite different from PPMUv1.1. The exynos-ppmu.c driver supports both PPMUv1.1
and PPMUv2.
Cc: MyungJoo Ham <[email protected]>
Cc: Kyungmin Park <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
This patch add the cooling device to control the overheating issue on
Exynos3250-based Rinato/Monk board.
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: Kyungmin Park <[email protected]>
Acked-by Krzysztof Kozlowski <[email protected]>
Signed-off-by: Kukjin Kim <[email protected]>
This patch add CPU operating points which include CPU frequency and
regulator voltage to use generic cpufreq drivers.
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: Kyungmin Park <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]>
Signed-off-by: Kukjin Kim <[email protected]>
With commit b17d1bf16c ("gpio: make flags mandatory for gpiod_get functions")
it becomes necessary to pass the flags argument. And this patch adds the gpio
header file to fix the build breakage when build testing with random
configuration files.
Reported-by: Stephen Rothwell <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: Uwe Kleine-König <[email protected]>
This patch removes the mutually_exclusive array of extcon-palmas.c.
After used the unique id of each external connector on 2a9de9c0f0
("extcon: Use the unique id for external connector instead of string"),
extcon driver can't directly handle the bit value indicating the external
connectors.
Signed-off-by: Chanwoo Choi <[email protected]>
This patch removes the optional print_state() function pointer which included
in 'struct extcon_dev' because the extcon must maintain the consistent name
of extcon device on sysfs instead of inconsistent state of external connectors.
Signed-off-by: Chanwoo Choi <[email protected]>
This patch updates the documentation to include the information of PPMUv2.
The PPMUv2 is used for Exynos5433 and Exynos7420 to monitor the performance
of each IP in Exynos SoC.
Cc: MyungJoo Ham <[email protected]>
Cc: Kyungmin Park <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
This patch adds the support for PPMU (Platform Performance Monitoring Unit)
version 2.0 for Exynos5433 SoC. Exynos5433 SoC must need PPMUv2 which is
quite different from PPMUv1.1. The exynos-ppmu.c driver supports both PPMUv1.1
and PPMUv2.
Cc: MyungJoo Ham <[email protected]>
Cc: Kyungmin Park <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
The exynos thermal driver use the of_thermal_*() API to parse the basic data
for thermal management from devicetree file. So, if CONFIG_EXYNOS_THERMAL is
selected without CONFIG_THERMAL_OF, kernel can build it without any problem.
But, exynos thermal driver is not working with following error log. This patch
add the dependency of CONFIG_THERMAL_OF instead of CONFIG_OF.
[ 1.458644] get_th_reg: Cannot get trip points from of-thermal.c!
[ 1.459096] get_th_reg: Cannot get trip points from of-thermal.c!
[ 1.465211] exynos4412_tmu_initialize: No CRITICAL trip point defined at of-thermal.c!
Cc: Zhang Rui <[email protected]>
Cc: Eduardo Valentin <[email protected]>
Cc: Lukasz Majewski <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Lukasz Majewski <[email protected]>
Signed-off-by: Eduardo Valentin <[email protected]>
This patch removes the deprecated notifier API of extcon framwork
and then use the new extcon API with the unique id to indicate
the each external connector (USB, USB-HOST).
Alter deprecated API as following:
- extcon_register_interest() -> extcon_register_notifier()
- extcon_get_cable_state(*edev, char *) -> extcon_get_cable_state_(*edev, id)
Cc: Felipe Balbi <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
This patch uses the devm_extcon_dev_[allocate|register]() to manage the
resource automatically and replace deprecated API as following:
- extcon_[set|get]_cable_state(*edev, char *) -> extcon_[set|get]_cable_state_(*edev, id)
Cc: Felipe Balbi <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
This patch removes the deprecated notifier API of extcon framwork
and then use the new extcon API with the unique id to indicate
the each external connector (USB, USB-HOST).
Alter deprecated API as following:
- extcon_register_interest() -> extcon_register_notifier()
- extcon_get_cable_state(*edev, char *) -> extcon_get_cable_state_(*edev, id)
[ [email protected] : fix build break ]
Cc: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
This patch removes the deprecated notifier API of extcon framwork
and then use the new extcon API with the unique id to indicate
the each external connector (USB, USB-HOST).
Alter deprecated API as following:
- extcon_register_interest() -> extcon_register_notifier()
- extcon_get_cable_state(*edev, char *) -> extcon_get_cable_state_(*edev, id)
Cc: Felipe Balbi <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
This patch fixes NULL pointer error by removing the unneeded kfree() call
of edev->name because extcon-palmas no longer allocate the memory for edev->name.
Fixes: d71aadda19 ("extcon: Remove the optional name of extcon device")
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
This patch just redefine the unique id of supported external connectors without
'enum extcon' type. Because unique id would be used on devictree file(*.dts) to
indicate the specific external connectors like key number of input framework.
So, I have the plan to move this definitions to following header file which
includes the unique id of supported external connectors.
- include/dt-bindings/extcon/extcon.h
Fixes: 2a9de9c0f0 ("extcon: Use the unique id for external connector instead of string")
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This patch adds CLK_SET_RATE_PARENT flag to support DVFS of Cortex-{A53|A57}
core (big.LITTLE core) because 'sclk_{apollo|atlas}' leaf clock is used to
change the CPU frequency of Cortex-{A53|A57} core in arm_big_little.c driver.
- 'apollo' word means the LITTLE core (Cortex-A53 core) in Exynos5433 TRM.
- 'atlas' word means the big core (Cortex-A57 core) in Exynos5433 TRM.
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Sylwester Nawrocki <[email protected]>
This patch removes the optional print_name() function pointer included in
'struct extcon_dev' because the extcon must maintain the consistent name of
extcon device on sysfs instead of inconsistent name. After merged patch[1],
extcon can maintain the consistent name of extcon device without any hard-coded
device name.
[1] https://lkml.org/lkml/2015/4/27/258
Signed-off-by: Chanwoo Choi <[email protected]>
Previously, extcon consumer driver used the extcon_register_interest()
to register the notifier chain and then to receive the notifier event
when external connector's state is changed. When registering the notifier chain
for specific external connector with extcon_register_interest(), it used the
the string name of external connector directly. There are potential problem
because of unclear, non-standard and inconsequent cable name. Namely,
it is not appropriate method to identify each external connector.
So, this patch modify the prototype of extcon_register_notifier() by using
the 'enum extcon' which are the unique id for each external connector
instead of unclear string method.
- Previously, the extcon consumer driver used the extcon_register_interest()
with 'cable_name' to point out the specific external connector. Also. it used
the un-needed structure (struct extcon_specific_cable_nb).
: int extcon_register_interest(struct extcon_specific_cable_nb *obj,
const char *extcon_name, const char *cable_name,
struct notifier_block *nb)
- Newly, the updated extcon_register_notifier() would definitely support
the same feature to detech the changed state of external connector without
any specific structure (struct extcon_specific_cable_nb).
: int extcon_register_notifier(struct extcon_dev *edev, enum extcon id,
struct notifier_block *nb)
This patch support the both extcon_register_interest() and new extcon_register_
notifier(). But the extcon_{register|unregister}_interest() will be deprecated
because extcon core would support the notifier event for extcon consumer driver
with only updated extcon_register_notifier() and 'extcon_specific_cable_nb'
will be removed if there are no extcon consumer driver with legacy
extcon_{register|unregister}_interest().
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
This patch uses the capital letter for the name of external connectors
to improve the readability instead of small letter.
Cc: MyungJoo Ham <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
This patch uses the unique id to identify the type of external connector instead
of string name. The string name have the many potential issues. So, this patch
defines the 'extcon' enumeration which includes all supported external connector
on EXTCON subsystem. If new external connector is necessary, the unique id of
new connector have to be added in 'extcon' enumeration. There are current
supported external connector in 'enum extcon' as following:
enum extcon {
EXTCON_NONE = 0x0,
/* USB external connector */
EXTCON_USB = 0x1,
EXTCON_USB_HOST = 0x2,
/* Charger external connector */
EXTCON_TA = 0x10,
EXTCON_FAST_CHARGER = 0x11,
EXTCON_SLOW_CHARGER = 0x12,
EXTCON_CHARGE_DOWNSTREAM = 0x13,
/* Audio and video external connector */
EXTCON_LINE_IN = 0x20,
EXTCON_LINE_OUT = 0x21,
EXTCON_MICROPHONE = 0x22,
EXTCON_HEADPHONE = 0x23,
EXTCON_HDMI = 0x30,
EXTCON_MHL = 0x31,
EXTCON_DVI = 0x32,
EXTCON_VGA = 0x33,
EXTCON_SPDIF_IN = 0x34,
EXTCON_SPDIF_OUT = 0x35,
EXTCON_VIDEO_IN = 0x36,
EXTCON_VIDEO_OUT = 0x37,
/* Miscellaneous external connector */
EXTCON_DOCK = 0x50,
EXTCON_JIG = 0x51,
EXTCON_MECHANICAL = 0x52,
EXTCON_END,
};
For example in extcon-arizona.c:
To use unique id removes the potential issue about handling
the inconsistent name of external connector with string.
- Previously, use the string to register the type of arizona jack connector
static const char *arizona_cable[] = {
"Mechanical",
"Microphone",
"Headphone",
"Line-out",
};
- Newly, use the unique id to register the type of arizona jack connector
static const enum extcon arizona_cable[] = {
EXTCON_MECHANICAL,
EXTCON_MICROPHONE,
EXTCON_HEADPHONE,
EXTCON_LINE_OUT,
EXTCON_NONE,
};
And this patch modify the prototype of extcon_{get|set}_cable_state_() which
uses the 'enum extcon id' instead of 'cable_index'. Because although one more
extcon drivers support USB cable, each extcon driver might has the differnt
'cable_index' for USB cable. All extcon drivers can use the unique id number
for same external connector with modified extcon_{get|set}_cable_state_().
- Previously, use 'cable_index' on these functions:
extcon_get_cable_state_(struct extcon_dev*, int cable_index)
extcon_set_cable_state_(struct extcon_dev*, int cable_index, bool state)
-Newly, use 'enum extcon id' on these functions:
extcon_get_cable_state_(struct extcon_dev*, enum extcon id)
extcon_set_cable_state_(struct extcon_dev*, enum extcon id, bool state)
Cc: Arnd Bergmann <[email protected]>
Cc: Felipe Balbi <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: Roger Quadros <[email protected]>
Acked-by: Charles Keepax <[email protected]>
Acked-by: Ramakrishna Pallala <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
[arnd: Report the build break about drivers/usb/phy/phy-tahvo.c after using the
unique id for external connector insteadf of string]
Reported-by: Arnd Bergmann <[email protected]>
[dan.carpenter: Report the build warning of extcon_{set|get}_cable_state_()]
Reported-by: Dan Carpenter <[email protected]>
This patch removes the optional name of extcon device. Instead,
extcon_dev_register() set the device name as 'extcon[number]' naming pattern.
- /sys/class/extcon/[hardcoded device name] -> /sys/class/extcon/extcon[number]
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Cc: MyungJoo Ham <[email protected]>
Cc: Charles Keepax <[email protected]>
Cc: Graeme Gregory <[email protected]>
Cc: Kishon Vijay Abraham I <[email protected]>
Cc: Krzysztof Kozlowski <[email protected]>
Cc: Jaewon Kim <[email protected]>
This patch removes the 'num_cables' filed from 'struct adc_jack_pdata'
because 'struct extcon_dev' contains the 'max_supported' field which
means the number of supported cable of extcon device.
Signed-off-by: Chanwoo Choi <[email protected]>
This patch alters the MHL-TA cable name to TA cable name because MHL-TA is not
standard name. The MHL-TA is MHL cable with charger cable (TA or USB). So, this
patch use the TA cable instead of MHL-TA to inform the charger cable state.
- MHL-TA -> TA
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
This patch change the name of various dock devices as 'DOCK' because the name of
various dock devices have not the standard naming rules. The name of dock devices
include the differenct word but it is ambiguous and never important information
on user-space aspect. This patch unifies the name of dock devices as following:
- Dock-Smart -->|--> DOCK
- Dock-Desk -->|
- Dock-Audio -->|
- Dock-Card -->|
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
This patch change the name of various jig cables as 'JIG' because the name of
various jig cables are strange and ambiguous on user-space aspect. They include
the different information of either USB and UART state. It is never important
for user-space process. This patch unifies the name of jig cables as following:
- JIG-USB-ON -->|--> JIG
- JIG-USB-OFF -->|
- JIG-UART-ON -->|
- JIG-UART-OFF -->|
Signed-off-by: Chanwoo Choi <[email protected]>
This patch removes the setting of device name. Instead, extcon_dev_register()
set the device name such as 'extcon[number]' naming method.
- /sys/class/extcon/Headset Jack -> /sys/class/extcon/extcon[number]
Cc: Charles Keepax <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: Charles Keepax <[email protected]>
This patch clean up the extcon core driver by fixing the checkpatch warning
and minor coding style issue.
Signed-off-by: Chanwoo Choi <[email protected]>
This patch adds the extcon_get_edev_name() API to get the name of extcon device
because all information inclued in the structure extcon_dev should be accessed
by extcon core API instead of directly accessing the data.
Signed-off-by: Chanwoo Choi <[email protected]>
This patch modify the device name as extcon[X] for sysfs by using the 'extcon'
prefix word instead of separate device name. On user-space aspect, user would
find the some extcon drvier with extcon[X] pattern. So, this patch modify the
device name as following:
- /sys/class/extcon/[device name] -> /sys/class/extcon/extcon[X]
Signed-off-by: Chanwoo Choi <[email protected]>
This patch shows the correct information for debugging when fail
to set clock rate because original error message shows the error
value instead of current clock rate.
Cc: Mike Turquette <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: Sylwester Nawrocki <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>
This patch adds the support for Exynos5433's TMU (Thermal Management Unit).
Exynos5433 has a little different register bit fields as following description:
- Support the eight trip points for rising/falling interrupt by using two registers
- Read the calibration type (1-point or 2-point) and sensor id from TRIMINFO register
- Use a little different register address
Cc: Zhang Rui <[email protected]>
Cc: Eduardo Valentin <[email protected]>
Cc: Lukasz Majewski <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Eduardo Valentin <[email protected]>
This patch fixes the wrong parent clock of sclk_apollo clock
from 'div_apollo_pll' to 'div_apollo2'.
Signed-off-by: Chanwoo Choi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Sylwester Nawrocki <[email protected]>
This patch removes the CONFIG_ARCH_EXYNOS5433 and then use only the
CONFIG_ARCH_EXYNOS for ARM-64bit Exynos5433 SoC.
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Sylwester Nawrocki <[email protected]>
The current functions in s3c-rtc driver execute clk_enable/disable() to
control clocks and some functions execute s3c_rtc_alarm_clk_enable()
unnecessarily. So this patch deletes the duplicate clock control and
spilts s3c_rtc_alarm_clk_enable() out as
s3c_rtc_enable_clk()/s3c_rtc_disable_clk() to improve readability.
Signed-off-by: Chanwoo Choi <[email protected]>
Cc: Alessandro Zummo <[email protected]>
Cc: Kukjin Kim <[email protected]>
Cc: Inki Dae <[email protected]>
Cc: Kyungmin Park <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This patch adds the const keyword for devfreq_event_ops structure
because the ops of devfreq_event_desc structure should not be changed
after initialization.
Cc: Myungjoo Ham <[email protected]>
Cc: Kyungmin Park <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
This patch renames the extcon core driver from extcon-class.c
to extcon.c because '-class' postfix is not necessary.
Signed-off-by: Chanwoo Choi <[email protected]>
This patch adds driver data for Exynos5433 SoC. Exynos5433 includes 228 multi-
functional input/output port pins and 135 memory port pins. There are 41 general
port groups and 2 memory port groups.
Cc: Thomas Abraham <[email protected]>
Acked-by: Tomasz Figa <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Acked-by: Inki Dae <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Chanwoo Choi