* [PATCH v9 1/9] power: supply: add undervoltage health status property
2024-12-02 9:47 [PATCH v9 0/9] Add support for Maxim Integrated MAX77705 PMIC Dzmitry Sankouski
@ 2024-12-02 9:47 ` Dzmitry Sankouski
2024-12-02 9:47 ` [PATCH v9 2/9] dt-bindings: power: supply: max17042: add max77705 support Dzmitry Sankouski
` (7 subsequent siblings)
8 siblings, 0 replies; 20+ messages in thread
From: Dzmitry Sankouski @ 2024-12-02 9:47 UTC (permalink / raw)
To: Sebastian Reichel, Chanwoo Choi, Krzysztof Kozlowski, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds,
Dzmitry Sankouski
Add POWER_SUPPLY_HEALTH_UNDERVOLTAGE status for power supply
to report under voltage lockout failures.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
---
Changes for v5:
- update Documentation/ABI/testing/sysfs-class-power and
drivers/power/supply/power_supply_sysfs.c
---
Documentation/ABI/testing/sysfs-class-power | 2 +-
drivers/power/supply/power_supply_sysfs.c | 1 +
include/linux/power_supply.h | 1 +
3 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index 45180b62d426..32c018c5d088 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -433,7 +433,7 @@ Description:
Valid values:
"Unknown", "Good", "Overheat", "Dead",
- "Over voltage", "Unspecified failure", "Cold",
+ "Over voltage", "Under voltage", "Unspecified failure", "Cold",
"Watchdog timer expire", "Safety timer expire",
"Over current", "Calibration required", "Warm",
"Cool", "Hot", "No battery"
diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c
index 571de43fcca9..247c2910ba34 100644
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -99,6 +99,7 @@ static const char * const POWER_SUPPLY_HEALTH_TEXT[] = {
[POWER_SUPPLY_HEALTH_OVERHEAT] = "Overheat",
[POWER_SUPPLY_HEALTH_DEAD] = "Dead",
[POWER_SUPPLY_HEALTH_OVERVOLTAGE] = "Over voltage",
+ [POWER_SUPPLY_HEALTH_UNDERVOLTAGE] = "Under voltage",
[POWER_SUPPLY_HEALTH_UNSPEC_FAILURE] = "Unspecified failure",
[POWER_SUPPLY_HEALTH_COLD] = "Cold",
[POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE] = "Watchdog timer expire",
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index b98106e1a90f..e96d262f3c2b 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -58,6 +58,7 @@ enum {
POWER_SUPPLY_HEALTH_OVERHEAT,
POWER_SUPPLY_HEALTH_DEAD,
POWER_SUPPLY_HEALTH_OVERVOLTAGE,
+ POWER_SUPPLY_HEALTH_UNDERVOLTAGE,
POWER_SUPPLY_HEALTH_UNSPEC_FAILURE,
POWER_SUPPLY_HEALTH_COLD,
POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
--
2.39.5
^ permalink raw reply related [flat|nested] 20+ messages in thread* [PATCH v9 2/9] dt-bindings: power: supply: max17042: add max77705 support
2024-12-02 9:47 [PATCH v9 0/9] Add support for Maxim Integrated MAX77705 PMIC Dzmitry Sankouski
2024-12-02 9:47 ` [PATCH v9 1/9] power: supply: add undervoltage health status property Dzmitry Sankouski
@ 2024-12-02 9:47 ` Dzmitry Sankouski
2024-12-02 10:16 ` Krzysztof Kozlowski
2024-12-02 9:47 ` [PATCH v9 3/9] dt-bindings: power: supply: max17042: remove reg from required Dzmitry Sankouski
` (6 subsequent siblings)
8 siblings, 1 reply; 20+ messages in thread
From: Dzmitry Sankouski @ 2024-12-02 9:47 UTC (permalink / raw)
To: Sebastian Reichel, Chanwoo Choi, Krzysztof Kozlowski, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds,
Dzmitry Sankouski
Add max77705 fuel gauge support.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
---
Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml b/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
index 085e2504d0dc..f929e7e2b82a 100644
--- a/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
+++ b/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
@@ -20,6 +20,7 @@ properties:
- maxim,max17050
- maxim,max17055
- maxim,max77849-battery
+ - maxim,max77705-battery
reg:
maxItems: 1
--
2.39.5
^ permalink raw reply related [flat|nested] 20+ messages in thread* Re: [PATCH v9 2/9] dt-bindings: power: supply: max17042: add max77705 support
2024-12-02 9:47 ` [PATCH v9 2/9] dt-bindings: power: supply: max17042: add max77705 support Dzmitry Sankouski
@ 2024-12-02 10:16 ` Krzysztof Kozlowski
0 siblings, 0 replies; 20+ messages in thread
From: Krzysztof Kozlowski @ 2024-12-02 10:16 UTC (permalink / raw)
To: Dzmitry Sankouski, Sebastian Reichel, Chanwoo Choi, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds
On 02/12/2024 10:47, Dzmitry Sankouski wrote:
> Add max77705 fuel gauge support.
>
> Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
> ---
> Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml b/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
> index 085e2504d0dc..f929e7e2b82a 100644
> --- a/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
> +++ b/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
> @@ -20,6 +20,7 @@ properties:
> - maxim,max17050
> - maxim,max17055
> - maxim,max77849-battery
> + - maxim,max77705-battery
Keep alphabetical order.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 20+ messages in thread
* [PATCH v9 3/9] dt-bindings: power: supply: max17042: remove reg from required
2024-12-02 9:47 [PATCH v9 0/9] Add support for Maxim Integrated MAX77705 PMIC Dzmitry Sankouski
2024-12-02 9:47 ` [PATCH v9 1/9] power: supply: add undervoltage health status property Dzmitry Sankouski
2024-12-02 9:47 ` [PATCH v9 2/9] dt-bindings: power: supply: max17042: add max77705 support Dzmitry Sankouski
@ 2024-12-02 9:47 ` Dzmitry Sankouski
2024-12-02 10:18 ` Krzysztof Kozlowski
2024-12-02 9:47 ` [PATCH v9 4/9] dt-bindings: mfd: add maxim,max77705 Dzmitry Sankouski
` (5 subsequent siblings)
8 siblings, 1 reply; 20+ messages in thread
From: Dzmitry Sankouski @ 2024-12-02 9:47 UTC (permalink / raw)
To: Sebastian Reichel, Chanwoo Choi, Krzysztof Kozlowski, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds,
Dzmitry Sankouski
Remove 'reg' property from required list, because in platform
variant it should not be present, because i2c client is passed
from MFD driver.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
---
Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml | 1 -
1 file changed, 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml b/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
index f929e7e2b82a..7a26036a8890 100644
--- a/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
+++ b/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
@@ -64,7 +64,6 @@ properties:
required:
- compatible
- - reg
additionalProperties: false
--
2.39.5
^ permalink raw reply related [flat|nested] 20+ messages in thread* Re: [PATCH v9 3/9] dt-bindings: power: supply: max17042: remove reg from required
2024-12-02 9:47 ` [PATCH v9 3/9] dt-bindings: power: supply: max17042: remove reg from required Dzmitry Sankouski
@ 2024-12-02 10:18 ` Krzysztof Kozlowski
0 siblings, 0 replies; 20+ messages in thread
From: Krzysztof Kozlowski @ 2024-12-02 10:18 UTC (permalink / raw)
To: Dzmitry Sankouski, Sebastian Reichel, Chanwoo Choi, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds
On 02/12/2024 10:47, Dzmitry Sankouski wrote:
> Remove 'reg' property from required list, because in platform
> variant it should not be present, because i2c client is passed
> from MFD driver.
>
> Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Sorry, not really. Device needs I2C address. I don't get what is
"platform variant" in terms of hardware, maybe you refer to some driver
changes. But anyway this needs proper hardware description, e.g. that
device does not have its own I2C address. If that's the case, of course.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 20+ messages in thread
* [PATCH v9 4/9] dt-bindings: mfd: add maxim,max77705
2024-12-02 9:47 [PATCH v9 0/9] Add support for Maxim Integrated MAX77705 PMIC Dzmitry Sankouski
` (2 preceding siblings ...)
2024-12-02 9:47 ` [PATCH v9 3/9] dt-bindings: power: supply: max17042: remove reg from required Dzmitry Sankouski
@ 2024-12-02 9:47 ` Dzmitry Sankouski
2024-12-02 18:34 ` Jacek Anaszewski
2024-12-02 9:47 ` [PATCH v9 5/9] power: supply: max17042: add max77705 fuel gauge support Dzmitry Sankouski
` (4 subsequent siblings)
8 siblings, 1 reply; 20+ messages in thread
From: Dzmitry Sankouski @ 2024-12-02 9:47 UTC (permalink / raw)
To: Sebastian Reichel, Chanwoo Choi, Krzysztof Kozlowski, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds,
Dzmitry Sankouski
Add maxim,max77705 binding.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
---
Changes in v9:
- replace max77705 fuel gauge with max17042
- remove monitored battery because not supported by max17042
Changes in v8:
- fix leds compatible
Changes in v6:
- unevaluatedProperties must be false
- drop excessive sentence from description,
just describe the device
- change leds compatible to maxim,max77705-rgb
Changes in v5:
- formatting changes
- add unevaluatedProperties: false for nodes referencing
common schemas
- remove additionalProperties on nodes with
unevaluatedProperties: false
- add min and max to led index
Changes in v4:
- change dts example intendation from tabs
to spaces
- remove interrupt-names property
- remove obvious reg description
- split long(>80) lines
---
Documentation/devicetree/bindings/mfd/maxim,max77705.yaml | 155 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 156 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/maxim,max77705.yaml b/Documentation/devicetree/bindings/mfd/maxim,max77705.yaml
new file mode 100644
index 000000000000..fbc264cfc609
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/maxim,max77705.yaml
@@ -0,0 +1,155 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/maxim,max77705.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX77705 Companion Power Management IC and USB Type-C interface IC
+
+maintainers:
+ - Dzmitry Sankouski <dsankouski@gmail.com>
+
+description: |
+ The Maxim MAX77705 is a Companion Power Management and Type-C
+ interface IC which includes charger, fuelgauge, LED, haptic motor driver and
+ Type-C management IC.
+
+properties:
+ compatible:
+ const: maxim,max77705
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ charger:
+ $ref: /schemas/power/supply/power-supply.yaml
+ unevaluatedProperties: false
+ properties:
+ compatible:
+ const: maxim,max77705-charger
+
+ required:
+ - compatible
+ - monitored-battery
+
+ fuel-gauge:
+ $ref: /schemas/power/supply/maxim,max17042.yaml#
+
+ haptic:
+ type: object
+ additionalProperties: false
+
+ properties:
+ compatible:
+ const: maxim,max77705-haptic
+
+ haptic-supply: true
+
+ pwms:
+ maxItems: 1
+
+ required:
+ - compatible
+ - haptic-supply
+ - pwms
+
+ leds:
+ type: object
+ additionalProperties: false
+ description:
+ Up to 4 LEDs supported. One LED is represented by one child node.
+
+ properties:
+ compatible:
+ const: maxim,max77705-rgb
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ patternProperties:
+ "^led@[0-3]$":
+ $ref: /schemas/leds/common.yaml#
+ type: object
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ description: LED index.
+ minimum: 0
+ maximum: 3
+
+ required:
+ - reg
+
+ required:
+ - compatible
+ - "#address-cells"
+ - "#size-cells"
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/leds/common.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmic@66 {
+ compatible = "maxim,max77705";
+ reg = <0x66>;
+ interrupt-parent = <&pm8998_gpios>;
+ interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-0 = <&chg_int_default>;
+ pinctrl-names = "default";
+
+ leds {
+ compatible = "maxim,max77705-rgb";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@1 {
+ reg = <1>;
+ label = "red:usr1";
+ };
+
+ led@2 {
+ reg = <2>;
+ label = "green:usr2";
+ };
+
+ led@3 {
+ reg = <3>;
+ label = "blue:usr3";
+ };
+ };
+
+ max77705_charger: charger {
+ compatible = "maxim,max77705-charger";
+ monitored-battery = <&battery>;
+ };
+
+ fuel-gauge {
+ compatible = "maxim,max77705-battery";
+ power-supplies = <&max77705_charger>;
+ maxim,rsns-microohm = <5000>;
+ };
+
+ haptic {
+ compatible = "maxim,max77705-haptic";
+ haptic-supply = <&vib_regulator>;
+ pwms = <&vib_pwm 0 50000>;
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 1240e75ecf4b..c3f66093edd1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14185,6 +14185,7 @@ B: mailto:linux-samsung-soc@vger.kernel.org
F: Documentation/devicetree/bindings/*/maxim,max14577.yaml
F: Documentation/devicetree/bindings/*/maxim,max77686.yaml
F: Documentation/devicetree/bindings/*/maxim,max77693.yaml
+F: Documentation/devicetree/bindings/*/maxim,max77705*.yaml
F: Documentation/devicetree/bindings/*/maxim,max77843.yaml
F: Documentation/devicetree/bindings/clock/maxim,max77686.txt
F: drivers/*/*max77843.c
--
2.39.5
^ permalink raw reply related [flat|nested] 20+ messages in thread* Re: [PATCH v9 4/9] dt-bindings: mfd: add maxim,max77705
2024-12-02 9:47 ` [PATCH v9 4/9] dt-bindings: mfd: add maxim,max77705 Dzmitry Sankouski
@ 2024-12-02 18:34 ` Jacek Anaszewski
0 siblings, 0 replies; 20+ messages in thread
From: Jacek Anaszewski @ 2024-12-02 18:34 UTC (permalink / raw)
To: Dzmitry Sankouski, Sebastian Reichel, Chanwoo Choi,
Krzysztof Kozlowski, Lee Jones, Rob Herring, Conor Dooley,
Dmitry Torokhov, Pavel Machek, Hans de Goede, Marek Szyprowski,
Sebastian Krzyszkowiak, Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds
Hi Dzmitry,
On 12/2/24 10:47, Dzmitry Sankouski wrote:
> Add maxim,max77705 binding.
>
> Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
> Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
> ---
> Changes in v9:
> - replace max77705 fuel gauge with max17042
> - remove monitored battery because not supported by max17042
>
> Changes in v8:
> - fix leds compatible
>
> Changes in v6:
> - unevaluatedProperties must be false
> - drop excessive sentence from description,
> just describe the device
> - change leds compatible to maxim,max77705-rgb
>
> Changes in v5:
> - formatting changes
> - add unevaluatedProperties: false for nodes referencing
> common schemas
> - remove additionalProperties on nodes with
> unevaluatedProperties: false
> - add min and max to led index
> Changes in v4:
> - change dts example intendation from tabs
> to spaces
> - remove interrupt-names property
> - remove obvious reg description
> - split long(>80) lines
> ---
> Documentation/devicetree/bindings/mfd/maxim,max77705.yaml | 155 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> MAINTAINERS | 1 +
> 2 files changed, 156 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/mfd/maxim,max77705.yaml b/Documentation/devicetree/bindings/mfd/maxim,max77705.yaml
> new file mode 100644
> index 000000000000..fbc264cfc609
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/maxim,max77705.yaml
> @@ -0,0 +1,155 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/maxim,max77705.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Maxim MAX77705 Companion Power Management IC and USB Type-C interface IC
> +
> +maintainers:
> + - Dzmitry Sankouski <dsankouski@gmail.com>
> +
> +description: |
> + The Maxim MAX77705 is a Companion Power Management and Type-C
> + interface IC which includes charger, fuelgauge, LED, haptic motor driver and
> + Type-C management IC.
> +
> +properties:
> + compatible:
> + const: maxim,max77705
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + charger:
> + $ref: /schemas/power/supply/power-supply.yaml
> + unevaluatedProperties: false
> + properties:
> + compatible:
> + const: maxim,max77705-charger
> +
> + required:
> + - compatible
> + - monitored-battery
> +
> + fuel-gauge:
> + $ref: /schemas/power/supply/maxim,max17042.yaml#
> +
> + haptic:
> + type: object
> + additionalProperties: false
> +
> + properties:
> + compatible:
> + const: maxim,max77705-haptic
> +
> + haptic-supply: true
> +
> + pwms:
> + maxItems: 1
> +
> + required:
> + - compatible
> + - haptic-supply
> + - pwms
> +
> + leds:
> + type: object
> + additionalProperties: false
> + description:
> + Up to 4 LEDs supported. One LED is represented by one child node.
> +
> + properties:
> + compatible:
> + const: maxim,max77705-rgb
> +
> + "#address-cells":
> + const: 1
> +
> + "#size-cells":
> + const: 0
> +
> + patternProperties:
> + "^led@[0-3]$":
> + $ref: /schemas/leds/common.yaml#
> + type: object
> + unevaluatedProperties: false
> +
> + properties:
> + reg:
> + description: LED index.
> + minimum: 0
> + maximum: 3
> +
> + required:
> + - reg
> +
> + required:
> + - compatible
> + - "#address-cells"
> + - "#size-cells"
> +
> +required:
> + - compatible
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + #include <dt-bindings/leds/common.h>
> +
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pmic@66 {
> + compatible = "maxim,max77705";
> + reg = <0x66>;
> + interrupt-parent = <&pm8998_gpios>;
> + interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> + pinctrl-0 = <&chg_int_default>;
> + pinctrl-names = "default";
> +
> + leds {
> + compatible = "maxim,max77705-rgb";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + led@1 {
> + reg = <1>;
> + label = "red:usr1";
In the driver you're using devm_led_classdev_register_ext(), but in DT
example you're proposing to use legacy 'label' property, instead of
'color' and 'function' devm_led_classdev_register_ext() is able to
parse. Either use devm_led_classdev_register() (discouraged), or modify
this example to use modern LED DT properties.
> + };
> +
> + led@2 {
> + reg = <2>;
> + label = "green:usr2";
> + };
> +
> + led@3 {
> + reg = <3>;
> + label = "blue:usr3";
> + };
> + };
> +
> + max77705_charger: charger {
> + compatible = "maxim,max77705-charger";
> + monitored-battery = <&battery>;
> + };
> +
> + fuel-gauge {
> + compatible = "maxim,max77705-battery";
> + power-supplies = <&max77705_charger>;
> + maxim,rsns-microohm = <5000>;
> + };
> +
> + haptic {
> + compatible = "maxim,max77705-haptic";
> + haptic-supply = <&vib_regulator>;
> + pwms = <&vib_pwm 0 50000>;
> + };
> + };
> + };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 1240e75ecf4b..c3f66093edd1 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -14185,6 +14185,7 @@ B: mailto:linux-samsung-soc@vger.kernel.org
> F: Documentation/devicetree/bindings/*/maxim,max14577.yaml
> F: Documentation/devicetree/bindings/*/maxim,max77686.yaml
> F: Documentation/devicetree/bindings/*/maxim,max77693.yaml
> +F: Documentation/devicetree/bindings/*/maxim,max77705*.yaml
> F: Documentation/devicetree/bindings/*/maxim,max77843.yaml
> F: Documentation/devicetree/bindings/clock/maxim,max77686.txt
> F: drivers/*/*max77843.c
>
--
Best regards,
Jacek Anaszewski
^ permalink raw reply [flat|nested] 20+ messages in thread
* [PATCH v9 5/9] power: supply: max17042: add max77705 fuel gauge support
2024-12-02 9:47 [PATCH v9 0/9] Add support for Maxim Integrated MAX77705 PMIC Dzmitry Sankouski
` (3 preceding siblings ...)
2024-12-02 9:47 ` [PATCH v9 4/9] dt-bindings: mfd: add maxim,max77705 Dzmitry Sankouski
@ 2024-12-02 9:47 ` Dzmitry Sankouski
2024-12-02 10:18 ` Krzysztof Kozlowski
2024-12-02 9:47 ` [PATCH v9 6/9] mfd: Add new driver for MAX77705 PMIC Dzmitry Sankouski
` (3 subsequent siblings)
8 siblings, 1 reply; 20+ messages in thread
From: Dzmitry Sankouski @ 2024-12-02 9:47 UTC (permalink / raw)
To: Sebastian Reichel, Chanwoo Choi, Krzysztof Kozlowski, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds,
Dzmitry Sankouski
Add max77705 fuel gauge support.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
---
drivers/power/supply/max17042_battery.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c
index 6a1bfc4a7b13..8623c89ad274 100644
--- a/drivers/power/supply/max17042_battery.c
+++ b/drivers/power/supply/max17042_battery.c
@@ -1212,6 +1212,7 @@ static const struct of_device_id max17042_dt_match[] = {
{ .compatible = "maxim,max17050" },
{ .compatible = "maxim,max17055" },
{ .compatible = "maxim,max77849-battery" },
+ { .compatible = "maxim,max77705-battery" },
{ },
};
MODULE_DEVICE_TABLE(of, max17042_dt_match);
@@ -1223,6 +1224,7 @@ static const struct i2c_device_id max17042_id[] = {
{ "max17050", MAXIM_DEVICE_TYPE_MAX17050 },
{ "max17055", MAXIM_DEVICE_TYPE_MAX17055 },
{ "max77849-battery", MAXIM_DEVICE_TYPE_MAX17047 },
+ { "max77705-battery", MAXIM_DEVICE_TYPE_MAX17047 },
{ }
};
MODULE_DEVICE_TABLE(i2c, max17042_id);
@@ -1233,6 +1235,7 @@ static const struct platform_device_id max17042_platform_id[] = {
{ "max17050", MAXIM_DEVICE_TYPE_MAX17050 },
{ "max17055", MAXIM_DEVICE_TYPE_MAX17055 },
{ "max77849-battery", MAXIM_DEVICE_TYPE_MAX17047 },
+ { "max77705-battery", MAXIM_DEVICE_TYPE_MAX17047 },
{ }
};
MODULE_DEVICE_TABLE(platform, max17042_platform_id);
--
2.39.5
^ permalink raw reply related [flat|nested] 20+ messages in thread* Re: [PATCH v9 5/9] power: supply: max17042: add max77705 fuel gauge support
2024-12-02 9:47 ` [PATCH v9 5/9] power: supply: max17042: add max77705 fuel gauge support Dzmitry Sankouski
@ 2024-12-02 10:18 ` Krzysztof Kozlowski
0 siblings, 0 replies; 20+ messages in thread
From: Krzysztof Kozlowski @ 2024-12-02 10:18 UTC (permalink / raw)
To: Dzmitry Sankouski, Sebastian Reichel, Chanwoo Choi, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds
On 02/12/2024 10:47, Dzmitry Sankouski wrote:
> Add max77705 fuel gauge support.
>
> Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
> ---
> drivers/power/supply/max17042_battery.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c
> index 6a1bfc4a7b13..8623c89ad274 100644
> --- a/drivers/power/supply/max17042_battery.c
> +++ b/drivers/power/supply/max17042_battery.c
> @@ -1212,6 +1212,7 @@ static const struct of_device_id max17042_dt_match[] = {
> { .compatible = "maxim,max17050" },
> { .compatible = "maxim,max17055" },
> { .compatible = "maxim,max77849-battery" },
> + { .compatible = "maxim,max77705-battery" },
Always keep existing order.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 20+ messages in thread
* [PATCH v9 6/9] mfd: Add new driver for MAX77705 PMIC
2024-12-02 9:47 [PATCH v9 0/9] Add support for Maxim Integrated MAX77705 PMIC Dzmitry Sankouski
` (4 preceding siblings ...)
2024-12-02 9:47 ` [PATCH v9 5/9] power: supply: max17042: add max77705 fuel gauge support Dzmitry Sankouski
@ 2024-12-02 9:47 ` Dzmitry Sankouski
2024-12-02 10:23 ` Krzysztof Kozlowski
2024-12-02 9:48 ` [PATCH v9 7/9] input: max77693: add max77705 haptic support Dzmitry Sankouski
` (2 subsequent siblings)
8 siblings, 1 reply; 20+ messages in thread
From: Dzmitry Sankouski @ 2024-12-02 9:47 UTC (permalink / raw)
To: Sebastian Reichel, Chanwoo Choi, Krzysztof Kozlowski, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds,
Dzmitry Sankouski
Add the core MFD driver for max77705 PMIC. We define five sub-devices
for which the drivers will be added in subsequent patches.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
---
Changes for v9:
- use max17042 as fuel gauge chip
- initialize max17042 i2c dummy device in mfd device,
because bus can be used for reading additional values,
not related to fuelgauge, like chip input current, system
bus current
- fix pmic_rev kernel test robot error
Changes for v8:
- fix comment style C++ -> C
- remove unused pmic_ver
Changes for v6:
- add PMIC suffix in Kconfig
- remove filename from file header
- reorder headers alphabetically
- move out fg and chg adresses definitions
- rename led name and compatible
- remove overbracketing
- move charger and fuel gauge i2c initialization
to their drivers
- fix max77705_i2c_driver tabbing
- formatting fixes
Changes for v5:
- license change to 2.0
- use same hardware name in Kconfig and module descriptions
Changes for v4:
- rework driver from scratch
- migrate to regmap_add_irq_chip, remove max77705-irq.c,
rename max77705-core.c to max77705.c
- cleanup headers
- remove debugfs code
- migrate to use max77693_dev structure
- remove max77705.h
---
MAINTAINERS | 2 ++
drivers/mfd/Kconfig | 12 ++++++++
drivers/mfd/Makefile | 2 ++
drivers/mfd/max77705.c | 242 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/max77693-common.h | 5 ++-
include/linux/mfd/max77705-private.h | 181 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
6 files changed, 443 insertions(+), 1 deletion(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index c3f66093edd1..b269d0456da3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14192,6 +14192,7 @@ F: drivers/*/*max77843.c
F: drivers/*/max14577*.c
F: drivers/*/max77686*.c
F: drivers/*/max77693*.c
+F: drivers/*/max77705*.c
F: drivers/clk/clk-max77686.c
F: drivers/extcon/extcon-max14577.c
F: drivers/extcon/extcon-max77693.c
@@ -14199,6 +14200,7 @@ F: drivers/rtc/rtc-max77686.c
F: include/linux/mfd/max14577*.h
F: include/linux/mfd/max77686*.h
F: include/linux/mfd/max77693*.h
+F: include/linux/mfd/max77705*.h
MAXIRADIO FM RADIO RECEIVER DRIVER
M: Hans Verkuil <hverkuil@xs4all.nl>
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index ae23b317a64e..17951a9d5a93 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -916,6 +916,18 @@ config MFD_MAX77693
additional drivers must be enabled in order to use the functionality
of the device.
+config MFD_MAX77705
+ tristate "Maxim MAX77705 PMIC Support"
+ depends on I2C
+ select MFD_CORE
+ help
+ Say yes here to add support for Maxim Integrated MAX77705 PMIC.
+ This is a Power Management IC with Charger, safe LDOs, Flash, Haptic
+ and MUIC controls on chip.
+ This driver provides common support for accessing the device;
+ additional drivers must be enabled in order to use the functionality
+ of the device.
+
config MFD_MAX77714
tristate "Maxim Semiconductor MAX77714 PMIC Support"
depends on I2C
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index e057d6d6faef..d981690b5a12 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -168,6 +168,7 @@ obj-$(CONFIG_MFD_MAX77620) += max77620.o
obj-$(CONFIG_MFD_MAX77650) += max77650.o
obj-$(CONFIG_MFD_MAX77686) += max77686.o
obj-$(CONFIG_MFD_MAX77693) += max77693.o
+obj-$(CONFIG_MFD_MAX77705) += max77705.o
obj-$(CONFIG_MFD_MAX77714) += max77714.o
obj-$(CONFIG_MFD_MAX77843) += max77843.o
obj-$(CONFIG_MFD_MAX8907) += max8907.o
@@ -233,6 +234,7 @@ obj-$(CONFIG_MFD_RK8XX_I2C) += rk8xx-i2c.o
obj-$(CONFIG_MFD_RK8XX_SPI) += rk8xx-spi.o
obj-$(CONFIG_MFD_RN5T618) += rn5t618.o
obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
+obj-$(CONFIG_MFD_S2DOS05) += s2dos05.o
obj-$(CONFIG_MFD_SYSCON) += syscon.o
obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o
obj-$(CONFIG_MFD_VEXPRESS_SYSREG) += vexpress-sysreg.o
diff --git a/drivers/mfd/max77705.c b/drivers/mfd/max77705.c
new file mode 100644
index 000000000000..42ef29e2bd76
--- /dev/null
+++ b/drivers/mfd/max77705.c
@@ -0,0 +1,242 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Maxim MAX77705 PMIC core driver
+//
+// Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com>
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/max77705-private.h>
+#include <linux/mfd/max77693-common.h>
+#include <linux/power/max17042_battery.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/of.h>
+
+#define I2C_ADDR_FG 0x36
+#define FUEL_GAUGE_NAME "max77705-battery"
+
+static struct mfd_cell max77705_devs[] = {
+ {
+ .name = "max77705-rgb",
+ .of_compatible = "maxim,max77705-rgb",
+ },
+ {
+ .name = "max77705-charger",
+ .of_compatible = "maxim,max77705-charger",
+ },
+ {
+ .name = "max77705-haptic",
+ .of_compatible = "maxim,max77705-haptic",
+ },
+ {
+ .name = FUEL_GAUGE_NAME,
+ .of_compatible = "maxim,max77705-battery",
+ }
+};
+
+static const struct regmap_range max77705_readable_ranges[] = {
+ regmap_reg_range(MAX77705_PMIC_REG_PMICID1, MAX77705_PMIC_REG_BSTOUT_MASK),
+ regmap_reg_range(MAX77705_PMIC_REG_INTSRC, MAX77705_PMIC_REG_RESERVED_29),
+ regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL1, MAX77705_PMIC_REG_BOOSTCONTROL1),
+ regmap_reg_range(MAX77705_PMIC_REG_MCONFIG, MAX77705_PMIC_REG_MCONFIG2),
+ regmap_reg_range(MAX77705_PMIC_REG_FORCE_EN_MASK, MAX77705_PMIC_REG_FORCE_EN_MASK),
+ regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL1, MAX77705_PMIC_REG_BOOSTCONTROL1),
+ regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL2, MAX77705_PMIC_REG_BOOSTCONTROL2),
+ regmap_reg_range(MAX77705_PMIC_REG_SW_RESET, MAX77705_PMIC_REG_USBC_RESET),
+};
+
+static const struct regmap_range max77705_writable_ranges[] = {
+ regmap_reg_range(MAX77705_PMIC_REG_MAINCTRL1, MAX77705_PMIC_REG_BSTOUT_MASK),
+ regmap_reg_range(MAX77705_PMIC_REG_INTSRC, MAX77705_PMIC_REG_RESERVED_29),
+ regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL1, MAX77705_PMIC_REG_BOOSTCONTROL1),
+ regmap_reg_range(MAX77705_PMIC_REG_MCONFIG, MAX77705_PMIC_REG_MCONFIG2),
+ regmap_reg_range(MAX77705_PMIC_REG_FORCE_EN_MASK, MAX77705_PMIC_REG_FORCE_EN_MASK),
+ regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL1, MAX77705_PMIC_REG_BOOSTCONTROL1),
+ regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL2, MAX77705_PMIC_REG_BOOSTCONTROL2),
+ regmap_reg_range(MAX77705_PMIC_REG_SW_RESET, MAX77705_PMIC_REG_USBC_RESET),
+
+};
+
+static const struct regmap_access_table max77705_readable_table = {
+ .yes_ranges = max77705_readable_ranges,
+ .n_yes_ranges = ARRAY_SIZE(max77705_readable_ranges),
+};
+
+static const struct regmap_access_table max77705_writable_table = {
+ .yes_ranges = max77705_writable_ranges,
+ .n_yes_ranges = ARRAY_SIZE(max77705_writable_ranges),
+};
+
+static const struct regmap_config max77705_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .rd_table = &max77705_readable_table,
+ .wr_table = &max77705_writable_table,
+ .max_register = MAX77705_PMIC_REG_USBC_RESET,
+};
+
+static const struct regmap_config max77705_leds_regmap_config = {
+ .reg_base = MAX77705_RGBLED_REG_BASE,
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = MAX77705_LED_REG_END,
+};
+
+static const struct regmap_irq max77705_topsys_irqs[] = {
+ { .mask = MAX77705_SYSTEM_IRQ_BSTEN_INT, },
+ { .mask = MAX77705_SYSTEM_IRQ_SYSUVLO_INT, },
+ { .mask = MAX77705_SYSTEM_IRQ_SYSOVLO_INT, },
+ { .mask = MAX77705_SYSTEM_IRQ_TSHDN_INT, },
+ { .mask = MAX77705_SYSTEM_IRQ_TM_INT, },
+};
+
+static const struct regmap_irq_chip max77705_topsys_irq_chip = {
+ .name = "max77705-topsys",
+ .status_base = MAX77705_PMIC_REG_SYSTEM_INT,
+ .mask_base = MAX77705_PMIC_REG_SYSTEM_INT_MASK,
+ .num_regs = 1,
+ .irqs = max77705_topsys_irqs,
+ .num_irqs = ARRAY_SIZE(max77705_topsys_irqs),
+};
+
+static int max77705_i2c_probe(struct i2c_client *i2c)
+{
+ struct max77693_dev *max77705;
+ struct i2c_client *i2c_fg;
+ struct regmap_irq_chip_data *irq_data;
+ struct irq_domain *domain;
+ int ret;
+ unsigned int pmic_rev_value;
+ enum max77705_hw_rev pmic_rev;
+
+
+ max77705 = devm_kzalloc(&i2c->dev, sizeof(*max77705), GFP_KERNEL);
+ if (!max77705)
+ return -ENOMEM;
+
+ max77705->i2c = i2c;
+ max77705->dev = &i2c->dev;
+ max77705->irq = i2c->irq;
+ max77705->type = TYPE_MAX77705;
+ i2c_set_clientdata(i2c, max77705);
+
+ max77705->regmap = devm_regmap_init_i2c(i2c, &max77705_regmap_config);
+
+ if (IS_ERR(max77705->regmap))
+ return PTR_ERR(max77705->regmap);
+
+ if (regmap_read(max77705->regmap, MAX77705_PMIC_REG_PMICREV, &pmic_rev_value) < 0)
+ return -ENODEV;
+
+ pmic_rev = pmic_rev_value & MAX77705_REVISION_MASK;
+
+ if (pmic_rev != MAX77705_PASS3) {
+ dev_err(max77705->dev, "rev.0x%x is not tested",
+ pmic_rev);
+ return -ENODEV;
+ }
+
+ max77705->regmap_leds = devm_regmap_init_i2c(i2c, &max77705_leds_regmap_config);
+
+ if (IS_ERR(max77705->regmap_leds))
+ return PTR_ERR(max77705->regmap_leds);
+
+ ret = devm_regmap_add_irq_chip(max77705->dev, max77705->regmap,
+ max77705->irq,
+ IRQF_ONESHOT | IRQF_SHARED, 0,
+ &max77705_topsys_irq_chip,
+ &irq_data);
+
+ if (ret)
+ dev_err(max77705->dev, "failed to add irq chip: %d\n", ret);
+
+ /* Unmask interrupts from all blocks in interrupt source register */
+ ret = regmap_update_bits(max77705->regmap,
+ MAX77705_PMIC_REG_INTSRC_MASK,
+ MAX77705_SRC_IRQ_ALL, (unsigned int)~MAX77705_SRC_IRQ_ALL);
+
+ if (ret < 0) {
+ dev_err(max77705->dev,
+ "Could not unmask interrupts in INTSRC: %d\n", ret);
+ return ret;
+ }
+
+ domain = regmap_irq_get_domain(irq_data);
+
+ i2c_fg = devm_i2c_new_dummy_device(max77705->dev, max77705->i2c->adapter, I2C_ADDR_FG);
+
+ if (IS_ERR(i2c_fg))
+ return PTR_ERR(i2c_fg);
+
+ max77705->i2c_fg = i2c_fg;
+
+ for (int i = 0; i < ARRAY_SIZE(max77705_devs); i++) {
+ if (!strcmp(max77705_devs[i].name, FUEL_GAUGE_NAME)) {
+ max77705_devs[i].platform_data = &i2c_fg;
+ max77705_devs[i].pdata_size = sizeof(i2c_fg);
+ }
+ }
+
+ ret = devm_mfd_add_devices(max77705->dev, PLATFORM_DEVID_NONE,
+ max77705_devs, ARRAY_SIZE(max77705_devs),
+ NULL, 0, domain);
+
+ if (ret) {
+ dev_err(max77705->dev, "Failed to register child devices: %d\n", ret);
+ return ret;
+ }
+
+ device_init_wakeup(max77705->dev, true);
+
+ return 0;
+}
+
+static int max77705_suspend(struct device *dev)
+{
+ struct i2c_client *i2c = to_i2c_client(dev);
+ struct max77693_dev *max77705 = i2c_get_clientdata(i2c);
+
+ disable_irq(max77705->irq);
+
+ if (device_may_wakeup(dev))
+ enable_irq_wake(max77705->irq);
+
+ return 0;
+}
+
+static int max77705_resume(struct device *dev)
+{
+ struct i2c_client *i2c = to_i2c_client(dev);
+ struct max77693_dev *max77705 = i2c_get_clientdata(i2c);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(max77705->irq);
+
+ enable_irq(max77705->irq);
+
+ return 0;
+}
+DEFINE_SIMPLE_DEV_PM_OPS(max77705_pm_ops, max77705_suspend, max77705_resume);
+
+static const struct of_device_id max77705_i2c_of_match[] = {
+ { .compatible = "maxim,max77705" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, max77705_i2c_of_match);
+
+static struct i2c_driver max77705_i2c_driver = {
+ .driver = {
+ .name = "max77705",
+ .of_match_table = max77705_i2c_of_match,
+ .pm = pm_sleep_ptr(&max77705_pm_ops),
+ .suppress_bind_attrs = true,
+ },
+ .probe = max77705_i2c_probe,
+};
+module_i2c_driver(max77705_i2c_driver);
+
+MODULE_DESCRIPTION("Maxim MAX77705 PMIC core driver");
+MODULE_AUTHOR("Dzmitry Sankouski <dsankouski@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/max77693-common.h b/include/linux/mfd/max77693-common.h
index a5bce099f1ed..8665097892cd 100644
--- a/include/linux/mfd/max77693-common.h
+++ b/include/linux/mfd/max77693-common.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
- * Common data shared between Maxim 77693 and 77843 drivers
+ * Common data shared between Maxim 77693, 77705 and 77843 drivers
*
* Copyright (C) 2015 Samsung Electronics
*/
@@ -11,6 +11,7 @@
enum max77693_types {
TYPE_MAX77693_UNKNOWN,
TYPE_MAX77693,
+ TYPE_MAX77705,
TYPE_MAX77843,
TYPE_MAX77693_NUM,
@@ -25,6 +26,7 @@ struct max77693_dev {
struct i2c_client *i2c_muic; /* 0x4A , MUIC */
struct i2c_client *i2c_haptic; /* MAX77693: 0x90 , Haptic */
struct i2c_client *i2c_chg; /* MAX77843: 0xD2, Charger */
+ struct i2c_client *i2c_fg; /* MAX77843: 0xD2, Charger */
enum max77693_types type;
@@ -32,6 +34,7 @@ struct max77693_dev {
struct regmap *regmap_muic;
struct regmap *regmap_haptic; /* Only MAX77693 */
struct regmap *regmap_chg; /* Only MAX77843 */
+ struct regmap *regmap_leds; /* Only MAX77705 */
struct regmap_irq_chip_data *irq_data_led;
struct regmap_irq_chip_data *irq_data_topsys;
diff --git a/include/linux/mfd/max77705-private.h b/include/linux/mfd/max77705-private.h
new file mode 100644
index 000000000000..be781a0f9802
--- /dev/null
+++ b/include/linux/mfd/max77705-private.h
@@ -0,0 +1,181 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Maxim MAX77705 definitions.
+ *
+ * Copyright (C) 2015 Samsung Electronics, Inc.
+ * Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com>
+ */
+
+#ifndef __LINUX_MFD_MAX77705_PRIV_H
+#define __LINUX_MFD_MAX77705_PRIV_H
+
+#include <linux/pm.h>
+
+#define MAX77705_SRC_IRQ_CHG BIT(0)
+#define MAX77705_SRC_IRQ_TOP BIT(1)
+#define MAX77705_SRC_IRQ_FG BIT(2)
+#define MAX77705_SRC_IRQ_USBC BIT(3)
+#define MAX77705_SRC_IRQ_ALL (MAX77705_SRC_IRQ_CHG | MAX77705_SRC_IRQ_TOP | \
+ MAX77705_SRC_IRQ_FG | MAX77705_SRC_IRQ_USBC)
+
+/* MAX77705_PMIC_REG_PMICREV register */
+#define MAX77705_VERSION_SHIFT 3
+#define MAX77705_REVISION_MASK GENMASK(2, 0)
+#define MAX77705_VERSION_MASK GENMASK(7, MAX77705_VERSION_SHIFT)
+/* MAX77705_PMIC_REG_MAINCTRL1 register */
+#define MAX77705_MAINCTRL1_BIASEN_SHIFT 7
+#define MAX77705_MAINCTRL1_BIASEN_MASK BIT(MAX77705_MAINCTRL1_BIASEN_SHIFT)
+/* MAX77705_PMIC_REG_MCONFIG2 (haptics) register */
+#define MAX77705_CONFIG2_MEN_SHIFT 6
+#define MAX77705_CONFIG2_MODE_SHIFT 7
+#define MAX77705_CONFIG2_HTYP_SHIFT 5
+/* MAX77705_PMIC_REG_SYSTEM_INT_MASK register */
+#define MAX77705_SYSTEM_IRQ_BSTEN_INT BIT(3)
+#define MAX77705_SYSTEM_IRQ_SYSUVLO_INT BIT(4)
+#define MAX77705_SYSTEM_IRQ_SYSOVLO_INT BIT(5)
+#define MAX77705_SYSTEM_IRQ_TSHDN_INT BIT(6)
+#define MAX77705_SYSTEM_IRQ_TM_INT BIT(7)
+
+enum max77705_hw_rev {
+ MAX77705_PASS1 = 1,
+ MAX77705_PASS2,
+ MAX77705_PASS3,
+};
+
+enum max77705_reg {
+ MAX77705_PMIC_REG_PMICID1 = 0x00,
+ MAX77705_PMIC_REG_PMICREV = 0x01,
+ MAX77705_PMIC_REG_MAINCTRL1 = 0x02,
+ MAX77705_PMIC_REG_BSTOUT_MASK = 0x03,
+ MAX77705_PMIC_REG_FORCE_EN_MASK = 0x08,
+ MAX77705_PMIC_REG_MCONFIG = 0x10,
+ MAX77705_PMIC_REG_MCONFIG2 = 0x11,
+ MAX77705_PMIC_REG_INTSRC = 0x22,
+ MAX77705_PMIC_REG_INTSRC_MASK = 0x23,
+ MAX77705_PMIC_REG_SYSTEM_INT = 0x24,
+ MAX77705_PMIC_REG_RESERVED_25 = 0x25,
+ MAX77705_PMIC_REG_SYSTEM_INT_MASK = 0x26,
+ MAX77705_PMIC_REG_RESERVED_27 = 0x27,
+ MAX77705_PMIC_REG_RESERVED_28 = 0x28,
+ MAX77705_PMIC_REG_RESERVED_29 = 0x29,
+ MAX77705_PMIC_REG_BOOSTCONTROL1 = 0x4C,
+ MAX77705_PMIC_REG_BOOSTCONTROL2 = 0x4F,
+ MAX77705_PMIC_REG_SW_RESET = 0x50,
+ MAX77705_PMIC_REG_USBC_RESET = 0x51,
+
+ MAX77705_PMIC_REG_END,
+};
+
+enum max77705_chg_reg {
+ MAX77705_CHG_REG_BASE = 0xB0,
+ MAX77705_CHG_REG_INT = 0,
+ MAX77705_CHG_REG_INT_MASK,
+ MAX77705_CHG_REG_INT_OK,
+ MAX77705_CHG_REG_DETAILS_00,
+ MAX77705_CHG_REG_DETAILS_01,
+ MAX77705_CHG_REG_DETAILS_02,
+ MAX77705_CHG_REG_DTLS_03,
+ MAX77705_CHG_REG_CNFG_00,
+ MAX77705_CHG_REG_CNFG_01,
+ MAX77705_CHG_REG_CNFG_02,
+ MAX77705_CHG_REG_CNFG_03,
+ MAX77705_CHG_REG_CNFG_04,
+ MAX77705_CHG_REG_CNFG_05,
+ MAX77705_CHG_REG_CNFG_06,
+ MAX77705_CHG_REG_CNFG_07,
+ MAX77705_CHG_REG_CNFG_08,
+ MAX77705_CHG_REG_CNFG_09,
+ MAX77705_CHG_REG_CNFG_10,
+ MAX77705_CHG_REG_CNFG_11,
+ MAX77705_CHG_REG_CNFG_12,
+ MAX77705_CHG_REG_CNFG_13,
+ MAX77705_CHG_REG_CNFG_14,
+ MAX77705_CHG_REG_SAFEOUT_CTRL,
+};
+
+enum max77705_fuelgauge_reg {
+ STATUS_REG = 0x00,
+ VALRT_THRESHOLD_REG = 0x01,
+ TALRT_THRESHOLD_REG = 0x02,
+ SALRT_THRESHOLD_REG = 0x03,
+ REMCAP_REP_REG = 0x05,
+ SOCREP_REG = 0x06,
+ TEMPERATURE_REG = 0x08,
+ VCELL_REG = 0x09,
+ TIME_TO_EMPTY_REG = 0x11,
+ FULLSOCTHR_REG = 0x13,
+ CURRENT_REG = 0x0A,
+ AVG_CURRENT_REG = 0x0B,
+ SOCMIX_REG = 0x0D,
+ SOCAV_REG = 0x0E,
+ REMCAP_MIX_REG = 0x0F,
+ FULLCAP_REG = 0x10,
+ RFAST_REG = 0x15,
+ AVR_TEMPERATURE_REG = 0x16,
+ CYCLES_REG = 0x17,
+ DESIGNCAP_REG = 0x18,
+ AVR_VCELL_REG = 0x19,
+ TIME_TO_FULL_REG = 0x20,
+ CONFIG_REG = 0x1D,
+ ICHGTERM_REG = 0x1E,
+ REMCAP_AV_REG = 0x1F,
+ FULLCAP_NOM_REG = 0x23,
+ LEARN_CFG_REG = 0x28,
+ FILTER_CFG_REG = 0x29,
+ MISCCFG_REG = 0x2B,
+ QRTABLE20_REG = 0x32,
+ FULLCAP_REP_REG = 0x35,
+ RCOMP_REG = 0x38,
+ VEMPTY_REG = 0x3A,
+ FSTAT_REG = 0x3D,
+ DISCHARGE_THRESHOLD_REG = 0x40,
+ QRTABLE30_REG = 0x42,
+ ISYS_REG = 0x43,
+ DQACC_REG = 0x45,
+ DPACC_REG = 0x46,
+ AVGISYS_REG = 0x4B,
+ QH_REG = 0x4D,
+ VSYS_REG = 0xB1,
+ TALRTTH2_REG = 0xB2,
+ VBYP_REG = 0xB3,
+ CONFIG2_REG = 0xBB,
+ IIN_REG = 0xD0,
+ OCV_REG = 0xEE,
+ VFOCV_REG = 0xFB,
+ VFSOC_REG = 0xFF,
+
+ MAX77705_FG_END,
+};
+
+enum max77705_led_reg {
+ MAX77705_RGBLED_REG_BASE = 0x30,
+ MAX77705_RGBLED_REG_LEDEN = 0,
+ MAX77705_RGBLED_REG_LED0BRT,
+ MAX77705_RGBLED_REG_LED1BRT,
+ MAX77705_RGBLED_REG_LED2BRT,
+ MAX77705_RGBLED_REG_LED3BRT,
+ MAX77705_RGBLED_REG_LEDRMP,
+ MAX77705_RGBLED_REG_LEDBLNK,
+ MAX77705_LED_REG_END
+};
+
+enum max77705_charger_battery_state {
+ MAX77705_BATTERY_NOBAT,
+ MAX77705_BATTERY_PREQUALIFICATION,
+ MAX77705_BATTERY_DEAD,
+ MAX77705_BATTERY_GOOD,
+ MAX77705_BATTERY_LOWVOLTAGE,
+ MAX77705_BATTERY_OVERVOLTAGE,
+ MAX77705_BATTERY_RESERVED,
+};
+
+enum max77705_charger_charge_type {
+ MAX77705_CHARGER_CONSTANT_CURRENT = 1,
+ MAX77705_CHARGER_CONSTANT_VOLTAGE,
+ MAX77705_CHARGER_END_OF_CHARGE,
+ MAX77705_CHARGER_DONE,
+};
+
+extern const struct dev_pm_ops max77705_pm_ops;
+
+#endif /* __LINUX_MFD_MAX77705_PRIV_H */
--
2.39.5
^ permalink raw reply related [flat|nested] 20+ messages in thread* Re: [PATCH v9 6/9] mfd: Add new driver for MAX77705 PMIC
2024-12-02 9:47 ` [PATCH v9 6/9] mfd: Add new driver for MAX77705 PMIC Dzmitry Sankouski
@ 2024-12-02 10:23 ` Krzysztof Kozlowski
2024-12-03 11:28 ` Dzmitry Sankouski
0 siblings, 1 reply; 20+ messages in thread
From: Krzysztof Kozlowski @ 2024-12-02 10:23 UTC (permalink / raw)
To: Dzmitry Sankouski, Sebastian Reichel, Chanwoo Choi, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds
On 02/12/2024 10:47, Dzmitry Sankouski wrote:
> Add the core MFD driver for max77705 PMIC. We define five sub-devices
> for which the drivers will be added in subsequent patches.
>
> Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
>
...
> +
> +static int max77705_i2c_probe(struct i2c_client *i2c)
> +{
> + struct max77693_dev *max77705;
> + struct i2c_client *i2c_fg;
> + struct regmap_irq_chip_data *irq_data;
> + struct irq_domain *domain;
> + int ret;
> + unsigned int pmic_rev_value;
> + enum max77705_hw_rev pmic_rev;
> +
> +
Only one blank line
> + max77705 = devm_kzalloc(&i2c->dev, sizeof(*max77705), GFP_KERNEL);
> + if (!max77705)
> + return -ENOMEM;
> +
> + max77705->i2c = i2c;
> + max77705->dev = &i2c->dev;
> + max77705->irq = i2c->irq;
> + max77705->type = TYPE_MAX77705;
> + i2c_set_clientdata(i2c, max77705);
> +
> + max77705->regmap = devm_regmap_init_i2c(i2c, &max77705_regmap_config);
> +
No blank line. Theer is never blank line between call and its error check.
> + if (IS_ERR(max77705->regmap))
> + return PTR_ERR(max77705->regmap);
> +
> + if (regmap_read(max77705->regmap, MAX77705_PMIC_REG_PMICREV, &pmic_rev_value) < 0)
> + return -ENODEV;
> +
> + pmic_rev = pmic_rev_value & MAX77705_REVISION_MASK;
> +
Drop blank line.
> + if (pmic_rev != MAX77705_PASS3) {
> + dev_err(max77705->dev, "rev.0x%x is not tested",
> + pmic_rev);
Unnecessary line wrap.
> + return -ENODEV;
> + }
> +
> + max77705->regmap_leds = devm_regmap_init_i2c(i2c, &max77705_leds_regmap_config);
> +
> + if (IS_ERR(max77705->regmap_leds))
> + return PTR_ERR(max77705->regmap_leds);
> +
> + ret = devm_regmap_add_irq_chip(max77705->dev, max77705->regmap,
> + max77705->irq,
> + IRQF_ONESHOT | IRQF_SHARED, 0,
> + &max77705_topsys_irq_chip,
> + &irq_data);
> +
Same issues, all over the code.
> + if (ret)
> + dev_err(max77705->dev, "failed to add irq chip: %d\n", ret);
> +
> + /* Unmask interrupts from all blocks in interrupt source register */
> + ret = regmap_update_bits(max77705->regmap,
> + MAX77705_PMIC_REG_INTSRC_MASK,
> + MAX77705_SRC_IRQ_ALL, (unsigned int)~MAX77705_SRC_IRQ_ALL);
The need for cast comes from some compiler warning?
> +
> + if (ret < 0) {
> + dev_err(max77705->dev,
> + "Could not unmask interrupts in INTSRC: %d\n", ret);
> + return ret;
> + }
> +
> + domain = regmap_irq_get_domain(irq_data);
> +
> + i2c_fg = devm_i2c_new_dummy_device(max77705->dev, max77705->i2c->adapter, I2C_ADDR_FG);
> +
> + if (IS_ERR(i2c_fg))
> + return PTR_ERR(i2c_fg);
> +
> + max77705->i2c_fg = i2c_fg;
> +
> + for (int i = 0; i < ARRAY_SIZE(max77705_devs); i++) {
> + if (!strcmp(max77705_devs[i].name, FUEL_GAUGE_NAME)) {
> + max77705_devs[i].platform_data = &i2c_fg;
> + max77705_devs[i].pdata_size = sizeof(i2c_fg);
> + }
> + }
> +
> + ret = devm_mfd_add_devices(max77705->dev, PLATFORM_DEVID_NONE,
> + max77705_devs, ARRAY_SIZE(max77705_devs),
> + NULL, 0, domain);
> +
> + if (ret) {
> + dev_err(max77705->dev, "Failed to register child devices: %d\n", ret);
> + return ret;
> + }
> +
> + device_init_wakeup(max77705->dev, true);
> +
> + return 0;
> +}
> +
> +static int max77705_suspend(struct device *dev)
> +{
> + struct i2c_client *i2c = to_i2c_client(dev);
> + struct max77693_dev *max77705 = i2c_get_clientdata(i2c);
> +
> + disable_irq(max77705->irq);
> +
> + if (device_may_wakeup(dev))
> + enable_irq_wake(max77705->irq);
> +
> + return 0;
> +}
> +
> +static int max77705_resume(struct device *dev)
> +{
> + struct i2c_client *i2c = to_i2c_client(dev);
> + struct max77693_dev *max77705 = i2c_get_clientdata(i2c);
> +
> + if (device_may_wakeup(dev))
> + disable_irq_wake(max77705->irq);
> +
> + enable_irq(max77705->irq);
> +
> + return 0;
> +}
> +DEFINE_SIMPLE_DEV_PM_OPS(max77705_pm_ops, max77705_suspend, max77705_resume);
> +
> +static const struct of_device_id max77705_i2c_of_match[] = {
> + { .compatible = "maxim,max77705" },
> + { },
> +};
> +MODULE_DEVICE_TABLE(of, max77705_i2c_of_match);
> +
> +static struct i2c_driver max77705_i2c_driver = {
> + .driver = {
> + .name = "max77705",
> + .of_match_table = max77705_i2c_of_match,
> + .pm = pm_sleep_ptr(&max77705_pm_ops),
> + .suppress_bind_attrs = true,
> + },
> + .probe = max77705_i2c_probe,
> +};
> +module_i2c_driver(max77705_i2c_driver);
> +
> +MODULE_DESCRIPTION("Maxim MAX77705 PMIC core driver");
> +MODULE_AUTHOR("Dzmitry Sankouski <dsankouski@gmail.com>");
> +MODULE_LICENSE("GPL");
> diff --git a/include/linux/mfd/max77693-common.h b/include/linux/mfd/max77693-common.h
> index a5bce099f1ed..8665097892cd 100644
> --- a/include/linux/mfd/max77693-common.h
> +++ b/include/linux/mfd/max77693-common.h
> @@ -1,6 +1,6 @@
> /* SPDX-License-Identifier: GPL-2.0+ */
> /*
> - * Common data shared between Maxim 77693 and 77843 drivers
> + * Common data shared between Maxim 77693, 77705 and 77843 drivers
> *
> * Copyright (C) 2015 Samsung Electronics
> */
> @@ -11,6 +11,7 @@
> enum max77693_types {
> TYPE_MAX77693_UNKNOWN,
> TYPE_MAX77693,
> + TYPE_MAX77705,
> TYPE_MAX77843,
>
> TYPE_MAX77693_NUM,
> @@ -25,6 +26,7 @@ struct max77693_dev {
> struct i2c_client *i2c_muic; /* 0x4A , MUIC */
> struct i2c_client *i2c_haptic; /* MAX77693: 0x90 , Haptic */
> struct i2c_client *i2c_chg; /* MAX77843: 0xD2, Charger */
> + struct i2c_client *i2c_fg; /* MAX77843: 0xD2, Charger */
You mix patchsets. Don't grow 77843 wigth 77705. Or is this not max77843?
>
> enum max77693_types type;
>
> @@ -32,6 +34,7 @@ struct max77693_dev {
> struct regmap *regmap_muic;
> struct regmap *regmap_haptic; /* Only MAX77693 */
> struct regmap *regmap_chg; /* Only MAX77843 */
> + struct regmap *regmap_leds; /* Only MAX77705 */
>
> struct regmap_irq_chip_data *irq_data_led;
> struct regmap_irq_chip_data *irq_data_topsys;
> diff --git a/include/linux/mfd/max77705-private.h b/include/linux/mfd/max77705-private.h
> new file mode 100644
> index 000000000000..be781a0f9802
...
> +
> +enum max77705_led_reg {
> + MAX77705_RGBLED_REG_BASE = 0x30,
> + MAX77705_RGBLED_REG_LEDEN = 0,
> + MAX77705_RGBLED_REG_LED0BRT,
> + MAX77705_RGBLED_REG_LED1BRT,
> + MAX77705_RGBLED_REG_LED2BRT,
> + MAX77705_RGBLED_REG_LED3BRT,
> + MAX77705_RGBLED_REG_LEDRMP,
> + MAX77705_RGBLED_REG_LEDBLNK,
> + MAX77705_LED_REG_END
> +};
> +
> +enum max77705_charger_battery_state {
> + MAX77705_BATTERY_NOBAT,
> + MAX77705_BATTERY_PREQUALIFICATION,
> + MAX77705_BATTERY_DEAD,
> + MAX77705_BATTERY_GOOD,
> + MAX77705_BATTERY_LOWVOLTAGE,
> + MAX77705_BATTERY_OVERVOLTAGE,
> + MAX77705_BATTERY_RESERVED,
> +};
> +
> +enum max77705_charger_charge_type {
> + MAX77705_CHARGER_CONSTANT_CURRENT = 1,
> + MAX77705_CHARGER_CONSTANT_VOLTAGE,
> + MAX77705_CHARGER_END_OF_CHARGE,
> + MAX77705_CHARGER_DONE,
> +};
> +
> +extern const struct dev_pm_ops max77705_pm_ops;
Why do you need it in the header?
> +
> +#endif /* __LINUX_MFD_MAX77705_PRIV_H */
>
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 20+ messages in thread* Re: [PATCH v9 6/9] mfd: Add new driver for MAX77705 PMIC
2024-12-02 10:23 ` Krzysztof Kozlowski
@ 2024-12-03 11:28 ` Dzmitry Sankouski
0 siblings, 0 replies; 20+ messages in thread
From: Dzmitry Sankouski @ 2024-12-03 11:28 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Sebastian Reichel, Chanwoo Choi, Lee Jones, Rob Herring,
Conor Dooley, Dmitry Torokhov, Pavel Machek, Hans de Goede,
Marek Szyprowski, Sebastian Krzyszkowiak, Purism Kernel Team,
linux-pm, linux-kernel, devicetree, linux-input, linux-leds
пн, 2 дек. 2024 г. в 13:23, Krzysztof Kozlowski <krzk@kernel.org>:
>
> On 02/12/2024 10:47, Dzmitry Sankouski wrote:
> > Add the core MFD driver for max77705 PMIC. We define five sub-devices
> > for which the drivers will be added in subsequent patches.
> >
> > Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
> >
(...)
> > + /* Unmask interrupts from all blocks in interrupt source register */
> > + ret = regmap_update_bits(max77705->regmap,
> > + MAX77705_PMIC_REG_INTSRC_MASK,
> > + MAX77705_SRC_IRQ_ALL, (unsigned int)~MAX77705_SRC_IRQ_ALL);
>
>
> The need for cast comes from some compiler warning?
>
BIT macro creates a 64 bit constant value. When inverted,
it overruns 32 bit value, causing compiler to warn on conversion like
`warning: conversion from ‘long unsigned int’ to ‘unsigned int’`.
--
Best regards and thanks for review,
Dzmitry
^ permalink raw reply [flat|nested] 20+ messages in thread
* [PATCH v9 7/9] input: max77693: add max77705 haptic support
2024-12-02 9:47 [PATCH v9 0/9] Add support for Maxim Integrated MAX77705 PMIC Dzmitry Sankouski
` (5 preceding siblings ...)
2024-12-02 9:47 ` [PATCH v9 6/9] mfd: Add new driver for MAX77705 PMIC Dzmitry Sankouski
@ 2024-12-02 9:48 ` Dzmitry Sankouski
2024-12-02 9:48 ` [PATCH v9 8/9] power: supply: max77705: Add charger driver for Maxim 77705 Dzmitry Sankouski
2024-12-02 9:48 ` [PATCH v9 9/9] leds: max77705: Add LEDs support Dzmitry Sankouski
8 siblings, 0 replies; 20+ messages in thread
From: Dzmitry Sankouski @ 2024-12-02 9:48 UTC (permalink / raw)
To: Sebastian Reichel, Chanwoo Choi, Krzysztof Kozlowski, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds,
Dzmitry Sankouski
Add support for haptic controller on MAX77705 Multifunction
device.
This driver supports external pwm and LRA (Linear Resonant Actuator) motor.
User can control the haptic device via force feedback framework.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
---
Changes in v4:
- add max77705 haptic support to max77693 driver
- delete max77705-haptic
---
drivers/input/misc/Kconfig | 4 ++--
drivers/input/misc/Makefile | 1 +
drivers/input/misc/max77693-haptic.c | 15 ++++++++++++++-
3 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 6a852c76331b..b4515c4e5cf6 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -241,11 +241,11 @@ config INPUT_MAX77650_ONKEY
config INPUT_MAX77693_HAPTIC
tristate "MAXIM MAX77693/MAX77843 haptic controller support"
- depends on (MFD_MAX77693 || MFD_MAX77843) && PWM
+ depends on (MFD_MAX77693 || MFD_MAX77705 || MFD_MAX77843) && PWM
select INPUT_FF_MEMLESS
help
This option enables support for the haptic controller on
- MAXIM MAX77693 and MAX77843 chips.
+ MAXIM MAX77693, MAX77705 and MAX77843 chips.
To compile this driver as module, choose M here: the
module will be called max77693-haptic.
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 4f7f736831ba..3e3532b27990 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -53,6 +53,7 @@ obj-$(CONFIG_INPUT_KXTJ9) += kxtj9.o
obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
obj-$(CONFIG_INPUT_MAX77650_ONKEY) += max77650-onkey.o
obj-$(CONFIG_INPUT_MAX77693_HAPTIC) += max77693-haptic.o
+obj-$(CONFIG_INPUT_MAX77705_HAPTIC) += max77705-haptic.o
obj-$(CONFIG_INPUT_MAX8925_ONKEY) += max8925_onkey.o
obj-$(CONFIG_INPUT_MAX8997_HAPTIC) += max8997_haptic.o
obj-$(CONFIG_INPUT_MC13783_PWRBUTTON) += mc13783-pwrbutton.o
diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c
index 0e646f1b257b..c3b9d33608d7 100644
--- a/drivers/input/misc/max77693-haptic.c
+++ b/drivers/input/misc/max77693-haptic.c
@@ -23,6 +23,7 @@
#include <linux/mfd/max77693.h>
#include <linux/mfd/max77693-common.h>
#include <linux/mfd/max77693-private.h>
+#include <linux/mfd/max77705-private.h>
#include <linux/mfd/max77843-private.h>
#define MAX_MAGNITUDE_SHIFT 16
@@ -115,6 +116,13 @@ static int max77693_haptic_configure(struct max77693_haptic *haptic,
MAX77693_HAPTIC_PWM_DIVISOR_128);
config_reg = MAX77693_HAPTIC_REG_CONFIG2;
break;
+ case TYPE_MAX77705:
+ value = ((haptic->type << MAX77693_CONFIG2_MODE) |
+ (enable << MAX77693_CONFIG2_MEN) |
+ (haptic->mode << MAX77693_CONFIG2_HTYP) |
+ MAX77693_HAPTIC_PWM_DIVISOR_128);
+ config_reg = MAX77705_PMIC_REG_MCONFIG;
+ break;
case TYPE_MAX77843:
value = (haptic->type << MCONFIG_MODE_SHIFT) |
(enable << MCONFIG_MEN_SHIFT) |
@@ -312,6 +320,9 @@ static int max77693_haptic_probe(struct platform_device *pdev)
case TYPE_MAX77693:
haptic->regmap_haptic = max77693->regmap_haptic;
break;
+ case TYPE_MAX77705:
+ haptic->regmap_haptic = max77693->regmap;
+ break;
case TYPE_MAX77843:
haptic->regmap_haptic = max77693->regmap;
break;
@@ -407,6 +418,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(max77693_haptic_pm_ops,
static const struct platform_device_id max77693_haptic_id[] = {
{ "max77693-haptic", },
+ { "max77705-haptic", },
{ "max77843-haptic", },
{},
};
@@ -414,6 +426,7 @@ MODULE_DEVICE_TABLE(platform, max77693_haptic_id);
static const struct of_device_id of_max77693_haptic_dt_match[] = {
{ .compatible = "maxim,max77693-haptic", },
+ { .compatible = "maxim,max77705-haptic", },
{ .compatible = "maxim,max77843-haptic", },
{ /* sentinel */ },
};
@@ -432,5 +445,5 @@ module_platform_driver(max77693_haptic_driver);
MODULE_AUTHOR("Jaewon Kim <jaewon02.kim@samsung.com>");
MODULE_AUTHOR("Krzysztof Kozlowski <krzk@kernel.org>");
-MODULE_DESCRIPTION("MAXIM 77693/77843 Haptic driver");
+MODULE_DESCRIPTION("MAXIM 77693/77705/77843 Haptic driver");
MODULE_LICENSE("GPL");
--
2.39.5
^ permalink raw reply related [flat|nested] 20+ messages in thread* [PATCH v9 8/9] power: supply: max77705: Add charger driver for Maxim 77705
2024-12-02 9:47 [PATCH v9 0/9] Add support for Maxim Integrated MAX77705 PMIC Dzmitry Sankouski
` (6 preceding siblings ...)
2024-12-02 9:48 ` [PATCH v9 7/9] input: max77693: add max77705 haptic support Dzmitry Sankouski
@ 2024-12-02 9:48 ` Dzmitry Sankouski
2024-12-02 10:28 ` Krzysztof Kozlowski
2024-12-02 9:48 ` [PATCH v9 9/9] leds: max77705: Add LEDs support Dzmitry Sankouski
8 siblings, 1 reply; 20+ messages in thread
From: Dzmitry Sankouski @ 2024-12-02 9:48 UTC (permalink / raw)
To: Sebastian Reichel, Chanwoo Choi, Krzysztof Kozlowski, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds,
Dzmitry Sankouski
Add driver for Maxim 77705 switch-mode charger (part of max77705
MFD driver) providing power supply class information to userspace.
The driver is configured through DTS (battery and system related
settings).
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
---
Changes in v9:
- move power supply registration before interrupts to prevent
NULL exceptions when handling interrupts
Changes for v8:
- join lines, where fits 100 chars
- change comment style C++ -> C
- remove author from 'based on' file header statement
Changes for v6:
- add i2c init in driver
- replace remove_new back on remove
- handle IS_ERR(i2c_chg)
Changes for v5:
- remove const modifier from max77705_charger_irq_chip
because it's modified with irq_drv_data in probe function
- fix license to GPL 2.0 only, where old vendor code used
GPL 2.0 only
- move power header to power include dir
- use same hardware name in Kconfig and module descriptions
Changes for v4:
- start from scratch
- change word delimiters in filenames to '_'
- use GENMASK in header
- remove debugfs code
- migrate to regmap_add_irq_chip
- fix property getters to follow the same style
---
drivers/power/supply/Kconfig | 6 ++
drivers/power/supply/Makefile | 1 +
drivers/power/supply/max77705_charger.c | 599 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/power/max77705_charger.h | 216 +++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 822 insertions(+)
diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
index 9f2eef6787f7..66264036b65d 100644
--- a/drivers/power/supply/Kconfig
+++ b/drivers/power/supply/Kconfig
@@ -583,6 +583,12 @@ config CHARGER_MAX77693
help
Say Y to enable support for the Maxim MAX77693 battery charger.
+config CHARGER_MAX77705
+ tristate "Maxim MAX77705 battery charger driver"
+ depends on MFD_MAX77705
+ help
+ Say Y to enable support for the Maxim MAX77705 battery charger.
+
config CHARGER_MAX77976
tristate "Maxim MAX77976 battery charger driver"
depends on I2C
diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile
index 59c4a9f40d28..85d65b7aee1c 100644
--- a/drivers/power/supply/Makefile
+++ b/drivers/power/supply/Makefile
@@ -80,6 +80,7 @@ obj-$(CONFIG_CHARGER_MAX14577) += max14577_charger.o
obj-$(CONFIG_CHARGER_DETECTOR_MAX14656) += max14656_charger_detector.o
obj-$(CONFIG_CHARGER_MAX77650) += max77650-charger.o
obj-$(CONFIG_CHARGER_MAX77693) += max77693_charger.o
+obj-$(CONFIG_CHARGER_MAX77705) += max77705_charger.o
obj-$(CONFIG_CHARGER_MAX77976) += max77976_charger.o
obj-$(CONFIG_CHARGER_MAX8997) += max8997_charger.o
obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o
diff --git a/drivers/power/supply/max77705_charger.c b/drivers/power/supply/max77705_charger.c
new file mode 100644
index 000000000000..75092326825b
--- /dev/null
+++ b/drivers/power/supply/max77705_charger.c
@@ -0,0 +1,599 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Based on max77650-charger.c
+ *
+ * Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.org>
+ *
+ * Battery charger driver for MAXIM 77705 charger/power-supply.
+ */
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/max77693-common.h>
+#include <linux/mfd/max77705-private.h>
+#include <linux/power/max77705_charger.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/regmap.h>
+
+#define I2C_ADDR_CHG 0x69
+
+static const char *max77705_charger_model = "max77705";
+static const char *max77705_charger_manufacturer = "Maxim Integrated";
+
+static const struct regmap_config max77705_chg_regmap_config = {
+ .reg_base = MAX77705_CHG_REG_BASE,
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = MAX77705_CHG_REG_SAFEOUT_CTRL,
+};
+
+static enum power_supply_property max77705_charger_props[] = {
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_CHARGE_TYPE,
+ POWER_SUPPLY_PROP_HEALTH,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
+ POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
+};
+
+static int max77705_chgin_irq(void *irq_drv_data)
+{
+ struct max77705_charger_data *charger = irq_drv_data;
+
+ queue_work(charger->wqueue, &charger->chgin_work);
+
+ return 0;
+}
+
+static const struct regmap_irq max77705_charger_irqs[] = {
+ { .mask = MAX77705_BYP_IM, },
+ { .mask = MAX77705_INP_LIMIT_IM, },
+ { .mask = MAX77705_BATP_IM, },
+ { .mask = MAX77705_BAT_IM, },
+ { .mask = MAX77705_CHG_IM, },
+ { .mask = MAX77705_WCIN_IM, },
+ { .mask = MAX77705_CHGIN_IM, },
+ { .mask = MAX77705_AICL_IM, },
+};
+
+static struct regmap_irq_chip max77705_charger_irq_chip = {
+ .name = "max77705-charger",
+ .status_base = MAX77705_CHG_REG_INT,
+ .mask_base = MAX77705_CHG_REG_INT_MASK,
+ .handle_post_irq = max77705_chgin_irq,
+ .num_regs = 1,
+ .irqs = max77705_charger_irqs,
+ .num_irqs = ARRAY_SIZE(max77705_charger_irqs),
+};
+
+static int max77705_charger_enable(struct max77705_charger_data *chg)
+{
+ int rv;
+
+ rv = regmap_update_bits(chg->regmap, MAX77705_CHG_REG_CNFG_09,
+ MAX77705_CHG_EN_MASK, MAX77705_CHG_EN_MASK);
+ if (rv)
+ dev_err(chg->dev, "unable to enable the charger: %d\n", rv);
+
+ return rv;
+}
+
+static void max77705_charger_disable(struct max77705_charger_data *chg)
+{
+ int rv;
+
+ rv = regmap_update_bits(chg->regmap,
+ MAX77705_CHG_REG_CNFG_09,
+ MAX77705_CHG_EN_MASK,
+ MAX77705_CHG_DISABLE);
+ if (rv)
+ dev_err(chg->dev, "unable to disable the charger: %d\n", rv);
+}
+
+static int max77705_get_online(struct regmap *regmap, int *val)
+{
+ unsigned int data;
+ int ret;
+
+ ret = regmap_read(regmap, MAX77705_CHG_REG_INT_OK, &data);
+ if (ret < 0)
+ return ret;
+
+ *val = !!(data & MAX77705_CHGIN_OK);
+
+ return 0;
+}
+
+static int max77705_check_battery(struct max77705_charger_data *charger, int *val)
+{
+ unsigned int reg_data;
+ unsigned int reg_data2;
+ struct regmap *regmap = charger->regmap;
+
+
+ regmap_read(regmap, MAX77705_CHG_REG_INT_OK, ®_data);
+
+ dev_dbg(charger->dev, "CHG_INT_OK(0x%x)\n", reg_data);
+
+ regmap_read(regmap,
+ MAX77705_CHG_REG_DETAILS_00, ®_data2);
+
+ dev_dbg(charger->dev, "CHG_DETAILS00(0x%x)\n", reg_data2);
+
+ if ((reg_data & MAX77705_BATP_OK) || !(reg_data2 & MAX77705_BATP_DTLS))
+ *val = true;
+ else
+ *val = false;
+
+ return 0;
+}
+
+static int max77705_get_charge_type(struct max77705_charger_data *charger, int *val)
+{
+ struct regmap *regmap = charger->regmap;
+ unsigned int reg_data;
+
+ regmap_read(regmap, MAX77705_CHG_REG_CNFG_09, ®_data);
+ if (!MAX77705_CHARGER_CHG_CHARGING(reg_data)) {
+ *val = POWER_SUPPLY_CHARGE_TYPE_NONE;
+ return 0;
+ }
+
+ regmap_read(regmap, MAX77705_CHG_REG_DETAILS_01, ®_data);
+ reg_data &= MAX77705_CHG_DTLS;
+
+ switch (reg_data) {
+ case 0x0:
+ case MAX77705_CHARGER_CONSTANT_CURRENT:
+ case MAX77705_CHARGER_CONSTANT_VOLTAGE:
+ *val = POWER_SUPPLY_CHARGE_TYPE_FAST;
+ return 0;
+ default:
+ *val = POWER_SUPPLY_CHARGE_TYPE_NONE;
+ return 0;
+ }
+
+ return 0;
+}
+
+static int max77705_get_status(struct max77705_charger_data *charger, int *val)
+{
+ struct regmap *regmap = charger->regmap;
+ unsigned int reg_data;
+
+ regmap_read(regmap, MAX77705_CHG_REG_CNFG_09, ®_data);
+ if (!MAX77705_CHARGER_CHG_CHARGING(reg_data)) {
+ *val = POWER_SUPPLY_CHARGE_TYPE_NONE;
+ return 0;
+ }
+
+ regmap_read(regmap, MAX77705_CHG_REG_DETAILS_01, ®_data);
+ reg_data &= MAX77705_CHG_DTLS;
+
+ switch (reg_data) {
+ case 0x0:
+ case MAX77705_CHARGER_CONSTANT_CURRENT:
+ case MAX77705_CHARGER_CONSTANT_VOLTAGE:
+ *val = POWER_SUPPLY_STATUS_CHARGING;
+ return 0;
+ case MAX77705_CHARGER_END_OF_CHARGE:
+ case MAX77705_CHARGER_DONE:
+ *val = POWER_SUPPLY_STATUS_FULL;
+ return 0;
+ /* those values hard coded as in vendor kernel, because of */
+ /* failure to determine it's actual meaning. */
+ case 0x05:
+ case 0x06:
+ case 0x07:
+ *val = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ return 0;
+ case 0x08:
+ case 0xA:
+ case 0xB:
+ *val = POWER_SUPPLY_STATUS_DISCHARGING;
+ return 0;
+ default:
+ *val = POWER_SUPPLY_STATUS_UNKNOWN;
+ return 0;
+ }
+
+ return 0;
+}
+
+static int max77705_get_vbus_state(struct regmap *regmap, int *value)
+{
+ int ret;
+ unsigned int charge_dtls;
+
+ ret = regmap_read(regmap, MAX77705_CHG_REG_DETAILS_00, &charge_dtls);
+ if (ret)
+ return ret;
+
+ charge_dtls = ((charge_dtls & MAX77705_CHGIN_DTLS) >>
+ MAX77705_CHGIN_DTLS_SHIFT);
+
+ switch (charge_dtls) {
+ case 0x00:
+ *value = POWER_SUPPLY_HEALTH_UNDERVOLTAGE;
+ break;
+ case 0x01:
+ *value = POWER_SUPPLY_HEALTH_UNDERVOLTAGE;
+ break;
+ case 0x02:
+ *value = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+ break;
+ case 0x03:
+ *value = POWER_SUPPLY_HEALTH_GOOD;
+ break;
+ default:
+ return 0;
+ }
+ return 0;
+}
+
+static int max77705_get_battery_health(struct max77705_charger_data *charger,
+ int *value)
+{
+ struct regmap *regmap = charger->regmap;
+ unsigned int bat_dtls;
+
+ regmap_read(regmap, MAX77705_CHG_REG_DETAILS_01, &bat_dtls);
+ bat_dtls = ((bat_dtls & MAX77705_BAT_DTLS) >> MAX77705_BAT_DTLS_SHIFT);
+
+ switch (bat_dtls) {
+ case MAX77705_BATTERY_NOBAT:
+ dev_dbg(charger->dev, "%s: No battery and the charger is suspended\n",
+ __func__);
+ *value = POWER_SUPPLY_HEALTH_NO_BATTERY;
+ break;
+ case MAX77705_BATTERY_PREQUALIFICATION:
+ dev_dbg(charger->dev, "%s: battery is okay but its voltage is low(~VPQLB)\n",
+ __func__);
+ break;
+ case MAX77705_BATTERY_DEAD:
+ dev_dbg(charger->dev, "%s: battery dead\n", __func__);
+ *value = POWER_SUPPLY_HEALTH_DEAD;
+ break;
+ case MAX77705_BATTERY_GOOD:
+ case MAX77705_BATTERY_LOWVOLTAGE:
+ *value = POWER_SUPPLY_HEALTH_GOOD;
+ break;
+ case MAX77705_BATTERY_OVERVOLTAGE:
+ dev_dbg(charger->dev, "%s: battery ovp\n", __func__);
+ *value = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+ break;
+ default:
+ dev_dbg(charger->dev, "%s: battery unknown\n", __func__);
+ *value = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
+ break;
+ }
+
+ return 0;
+}
+
+static int max77705_get_health(struct max77705_charger_data *charger, int *val)
+{
+ struct regmap *regmap = charger->regmap;
+ int ret, is_online = 0;
+
+ ret = max77705_get_online(regmap, &is_online);
+ if (ret)
+ return ret;
+ if (is_online) {
+ ret = max77705_get_vbus_state(regmap, val);
+ if (ret || (*val != POWER_SUPPLY_HEALTH_GOOD))
+ return ret;
+ }
+ return max77705_get_battery_health(charger, val);
+}
+
+static int max77705_get_input_current(struct max77705_charger_data *charger,
+ int *val)
+{
+ unsigned int reg_data;
+ int get_current = 0;
+ struct regmap *regmap = charger->regmap;
+
+ regmap_read(regmap,
+ MAX77705_CHG_REG_CNFG_09, ®_data);
+
+ reg_data &= MAX77705_CHG_CHGIN_LIM_MASK;
+
+ if (reg_data <= 3)
+ get_current = 100;
+ else if (reg_data >= MAX77705_CHG_CHGIN_LIM_MASK)
+ get_current = MAX77705_CURRENT_CHGIN_MAX;
+ else
+ get_current = (reg_data + 1) * 25;
+
+ *val = get_current;
+
+ return 0;
+}
+
+static int max77705_get_charge_current(struct max77705_charger_data *charger,
+ int *val)
+{
+ unsigned int reg_data;
+ struct regmap *regmap = charger->regmap;
+
+
+ regmap_read(regmap, MAX77705_CHG_REG_CNFG_02, ®_data);
+ reg_data &= MAX77705_CHG_CC;
+
+ *val = reg_data <= 0x2 ? 100 : reg_data * 50;
+
+ return 0;
+}
+
+static int max77705_set_float_voltage(struct max77705_charger_data *charger,
+ int float_voltage)
+{
+ int float_voltage_mv;
+ unsigned int reg_data = 0;
+ struct regmap *regmap = charger->regmap;
+
+ float_voltage_mv = float_voltage / 1000;
+ reg_data = float_voltage_mv <= 4000 ? 0x0 :
+ float_voltage_mv >= 4500 ? 0x23 :
+ (float_voltage_mv <= 4200) ? (float_voltage_mv - 4000) / 50 :
+ (((float_voltage_mv - 4200) / 10) + 0x04);
+
+ return regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_04,
+ MAX77705_CHG_CV_PRM_MASK,
+ (reg_data << MAX77705_CHG_CV_PRM_SHIFT));
+}
+
+static int max77705_get_float_voltage(struct max77705_charger_data *charger,
+ int *val)
+{
+ unsigned int reg_data = 0;
+ struct regmap *regmap = charger->regmap;
+
+ regmap_read(regmap, MAX77705_CHG_REG_CNFG_04, ®_data);
+ reg_data &= MAX77705_CHG_PRM_MASK;
+ *val = reg_data <= 0x04 ? reg_data * 50 + 4000 :
+ (reg_data - 4) * 10 + 4200;
+
+ return 0;
+}
+
+static int max77705_chg_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct max77705_charger_data *charger = power_supply_get_drvdata(psy);
+ struct regmap *regmap = charger->regmap;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ return max77705_get_online(regmap, &val->intval);
+ case POWER_SUPPLY_PROP_PRESENT:
+ return max77705_check_battery(charger, &val->intval);
+ case POWER_SUPPLY_PROP_STATUS:
+ return max77705_get_status(charger, &val->intval);
+ case POWER_SUPPLY_PROP_CHARGE_TYPE:
+ return max77705_get_charge_type(charger, &val->intval);
+ case POWER_SUPPLY_PROP_HEALTH:
+ return max77705_get_health(charger, &val->intval);
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ return max77705_get_input_current(charger, &val->intval);
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+ return max77705_get_charge_current(charger, &val->intval);
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
+ return max77705_get_float_voltage(charger, &val->intval);
+ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+ val->intval = charger->bat_info->voltage_max_design_uv;
+ break;
+ case POWER_SUPPLY_PROP_MODEL_NAME:
+ val->strval = max77705_charger_model;
+ break;
+ case POWER_SUPPLY_PROP_MANUFACTURER:
+ val->strval = max77705_charger_manufacturer;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static const struct power_supply_desc max77705_charger_psy_desc = {
+ .name = "max77705-charger",
+ .type = POWER_SUPPLY_TYPE_USB,
+ .properties = max77705_charger_props,
+ .num_properties = ARRAY_SIZE(max77705_charger_props),
+ .get_property = max77705_chg_get_property,
+};
+
+static void max77705_chgin_isr_work(struct work_struct *work)
+{
+ struct max77705_charger_data *charger =
+ container_of(work, struct max77705_charger_data, chgin_work);
+ power_supply_changed(charger->psy_chg);
+}
+
+static void max77705_charger_initialize(struct max77705_charger_data *chg)
+{
+ u8 reg_data;
+ struct power_supply_battery_info *info;
+ struct regmap *regmap = chg->regmap;
+
+ if (power_supply_get_battery_info(chg->psy_chg, &info) < 0)
+ return;
+
+ chg->bat_info = info;
+
+ /* unlock charger setting protect */
+ /* slowest LX slope */
+ reg_data = MAX77705_CHGPROT_MASK | MAX77705_SLOWEST_LX_SLOPE;
+ regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_06, reg_data,
+ reg_data);
+
+ /* fast charge timer disable */
+ /* restart threshold disable */
+ /* pre-qual charge disable */
+ reg_data = (MAX77705_FCHGTIME_DISABLE << MAX77705_FCHGTIME_SHIFT) |
+ (MAX77705_CHG_RSTRT_DISABLE << MAX77705_CHG_RSTRT_SHIFT) |
+ (MAX77705_CHG_PQEN_DISABLE << MAX77705_PQEN_SHIFT);
+ regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_01,
+ (MAX77705_FCHGTIME_MASK |
+ MAX77705_CHG_RSTRT_MASK |
+ MAX77705_PQEN_MASK),
+ reg_data);
+
+ /* OTG off(UNO on), boost off */
+ regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_00,
+ MAX77705_OTG_CTRL, 0);
+
+ /* charge current 450mA(default) */
+ /* otg current limit 900mA */
+ regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_02,
+ MAX77705_OTG_ILIM_MASK,
+ MAX77705_OTG_ILIM_900 << MAX77705_OTG_ILIM_SHIFT);
+
+ /* BAT to SYS OCP 4.80A */
+ regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_05,
+ MAX77705_REG_B2SOVRC_MASK,
+ MAX77705_B2SOVRC_4_8A << MAX77705_REG_B2SOVRC_SHIFT);
+ /* top off current 150mA */
+ /* top off timer 30min */
+ reg_data = (MAX77705_TO_ITH_150MA << MAX77705_TO_ITH_SHIFT) |
+ (MAX77705_TO_TIME_30M << MAX77705_TO_TIME_SHIFT) |
+ (MAX77705_SYS_TRACK_DISABLE << MAX77705_SYS_TRACK_DIS_SHIFT);
+ regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_03,
+ (MAX77705_TO_ITH_MASK |
+ MAX77705_TO_TIME_MASK |
+ MAX77705_SYS_TRACK_DIS_MASK), reg_data);
+
+ /* cv voltage 4.2V or 4.35V */
+ /* MINVSYS 3.6V(default) */
+ if (info->voltage_max_design_uv < 0) {
+ dev_warn(chg->dev, "missing battery:voltage-max-design-microvolt\n");
+ max77705_set_float_voltage(chg, 4200000);
+ } else {
+ max77705_set_float_voltage(chg, info->voltage_max_design_uv);
+ }
+
+ regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_12,
+ MAX77705_VCHGIN_REG_MASK, MAX77705_VCHGIN_4_5);
+ regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_12,
+ MAX77705_WCIN_REG_MASK, MAX77705_WCIN_4_5);
+
+ /* Watchdog timer */
+ regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_00,
+ MAX77705_WDTEN_MASK, 0);
+
+ /* Active Discharge Enable */
+ regmap_update_bits(regmap, MAX77705_PMIC_REG_MAINCTRL1, 1, 1);
+
+ /* VBYPSET=5.0V */
+ regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_11, MAX77705_VBYPSET_MASK, 0);
+
+ /* Switching Frequency : 1.5MHz */
+ regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_08, MAX77705_REG_FSW_MASK,
+ (MAX77705_CHG_FSW_1_5MHz << MAX77705_REG_FSW_SHIFT));
+
+ /* Auto skip mode */
+ regmap_update_bits(regmap, MAX77705_CHG_REG_CNFG_12, MAX77705_REG_DISKIP_MASK,
+ (MAX77705_AUTO_SKIP << MAX77705_REG_DISKIP_SHIFT));
+}
+
+static int max77705_charger_probe(struct platform_device *pdev)
+{
+ struct power_supply_config pscfg = {};
+ struct i2c_client *i2c_chg;
+ struct max77693_dev *max77705;
+ struct max77705_charger_data *chg;
+ struct device *dev, *parent;
+ struct regmap_irq_chip_data *irq_data;
+ int ret;
+
+ dev = &pdev->dev;
+ parent = dev->parent;
+ max77705 = dev_get_drvdata(parent);
+
+ chg = devm_kzalloc(dev, sizeof(*chg), GFP_KERNEL);
+ if (!chg)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, chg);
+
+ i2c_chg = devm_i2c_new_dummy_device(dev, max77705->i2c->adapter, I2C_ADDR_CHG);
+
+ if (IS_ERR(i2c_chg))
+ return PTR_ERR(i2c_chg);
+
+ chg->regmap = devm_regmap_init_i2c(i2c_chg, &max77705_chg_regmap_config);
+
+ if (IS_ERR(chg->regmap))
+ return PTR_ERR(chg->regmap);
+
+ chg->dev = dev;
+
+ ret = regmap_update_bits(chg->regmap,
+ MAX77705_CHG_REG_INT_MASK,
+ MAX77705_CHGIN_IM, 0);
+
+ if (ret)
+ return ret;
+
+ pscfg.of_node = dev->of_node;
+ pscfg.drv_data = chg;
+
+ chg->psy_chg = devm_power_supply_register(dev, &max77705_charger_psy_desc, &pscfg);
+ if (IS_ERR(chg->psy_chg))
+ return PTR_ERR(chg->psy_chg);
+
+ max77705_charger_irq_chip.irq_drv_data = chg;
+ ret = devm_regmap_add_irq_chip(chg->dev, chg->regmap, max77705->irq,
+ IRQF_ONESHOT | IRQF_SHARED, 0,
+ &max77705_charger_irq_chip,
+ &irq_data);
+ if (ret) {
+ dev_err(dev, "failed to add irq chip: %d\n", ret);
+ return ret;
+ }
+
+ chg->wqueue = create_singlethread_workqueue(dev_name(dev));
+ if (IS_ERR(chg->wqueue)) {
+ dev_err(dev, "failed to create workqueue\n");
+ return PTR_ERR(chg->wqueue);
+ }
+ INIT_WORK(&chg->chgin_work, max77705_chgin_isr_work);
+
+ max77705_charger_initialize(chg);
+
+ return max77705_charger_enable(chg);
+}
+
+static void max77705_charger_remove(struct platform_device *pdev)
+{
+ struct max77705_charger_data *chg = platform_get_drvdata(pdev);
+
+ max77705_charger_disable(chg);
+}
+
+static const struct of_device_id max77705_charger_of_match[] = {
+ { .compatible = "maxim,max77705-charger" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, max77705_charger_of_match);
+
+static struct platform_driver max77705_charger_driver = {
+ .driver = {
+ .name = "max77705-charger",
+ .of_match_table = max77705_charger_of_match,
+ },
+ .probe = max77705_charger_probe,
+ .remove = max77705_charger_remove,
+};
+module_platform_driver(max77705_charger_driver);
+
+MODULE_AUTHOR("Dzmitry Sankouski <dsankouski@gmail.com>");
+MODULE_DESCRIPTION("Maxim MAX77705 charger driver");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/power/max77705_charger.h b/include/linux/power/max77705_charger.h
new file mode 100644
index 000000000000..44ecd6b32cbe
--- /dev/null
+++ b/include/linux/power/max77705_charger.h
@@ -0,0 +1,216 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Maxim MAX77705 definitions.
+ *
+ * Copyright (C) 2015 Samsung Electronics, Inc.
+ * Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com>
+ */
+
+#ifndef __MAX77705_CHARGER_H
+#define __MAX77705_CHARGER_H __FILE__
+
+/* MAX77705_CHG_REG_CHG_INT */
+#define MAX77705_BYP_I BIT(0)
+#define MAX77705_INP_LIMIT_I BIT(1)
+#define MAX77705_BATP_I BIT(2)
+#define MAX77705_BAT_I BIT(3)
+#define MAX77705_CHG_I BIT(4)
+#define MAX77705_WCIN_I BIT(5)
+#define MAX77705_CHGIN_I BIT(6)
+#define MAX77705_AICL_I BIT(7)
+
+/* MAX77705_CHG_REG_CHG_INT_MASK */
+#define MAX77705_BYP_IM BIT(0)
+#define MAX77705_INP_LIMIT_IM BIT(1)
+#define MAX77705_BATP_IM BIT(2)
+#define MAX77705_BAT_IM BIT(3)
+#define MAX77705_CHG_IM BIT(4)
+#define MAX77705_WCIN_IM BIT(5)
+#define MAX77705_CHGIN_IM BIT(6)
+#define MAX77705_AICL_IM BIT(7)
+
+/* MAX77705_CHG_REG_CHG_INT_OK */
+#define MAX77705_BYP_OK BIT(0)
+#define MAX77705_DISQBAT_OK BIT(1)
+#define MAX77705_BATP_OK BIT(2)
+#define MAX77705_BAT_OK BIT(3)
+#define MAX77705_CHG_OK BIT(4)
+#define MAX77705_WCIN_OK BIT(5)
+#define MAX77705_CHGIN_OK BIT(6)
+#define MAX77705_AICL_OK BIT(7)
+
+/* MAX77705_CHG_REG_DETAILS_00 */
+#define MAX77705_BATP_DTLS BIT(0)
+#define MAX77705_WCIN_DTLS GENMASK(4, 3)
+#define MAX77705_WCIN_DTLS_SHIFT 3
+#define MAX77705_CHGIN_DTLS GENMASK(6, 5)
+#define MAX77705_CHGIN_DTLS_SHIFT 5
+
+/* MAX77705_CHG_REG_DETAILS_01 */
+#define MAX77705_CHG_DTLS GENMASK(3, 0)
+#define MAX77705_CHG_DTLS_SHIFT 0
+#define MAX77705_BAT_DTLS GENMASK(6, 4)
+#define MAX77705_BAT_DTLS_SHIFT 4
+
+/* MAX77705_CHG_REG_DETAILS_02 */
+#define MAX77705_BYP_DTLS GENMASK(3, 0)
+#define MAX77705_BYP_DTLS_SHIFT 0
+
+/* MAX77705_CHG_REG_CNFG_00 */
+#define MAX77705_CHG_SHIFT 0
+#define MAX77705_UNO_SHIFT 1
+#define MAX77705_OTG_SHIFT 1
+#define MAX77705_BUCK_SHIFT 2
+#define MAX77705_BOOST_SHIFT 3
+#define MAX77705_WDTEN_SHIFT 4
+#define MAX77705_MODE_MASK GENMASK(3, 0)
+#define MAX77705_CHG_MASK BIT(MAX77705_CHG_SHIFT)
+#define MAX77705_UNO_MASK BIT(MAX77705_UNO_SHIFT)
+#define MAX77705_OTG_MASK BIT(MAX77705_OTG_SHIFT)
+#define MAX77705_BUCK_MASK BIT(MAX77705_BUCK_SHIFT)
+#define MAX77705_BOOST_MASK BIT(MAX77705_BOOST_SHIFT)
+#define MAX77705_WDTEN_MASK BIT(MAX77705_WDTEN_SHIFT)
+#define MAX77705_UNO_CTRL (MAX77705_UNO_MASK | MAX77705_BOOST_MASK)
+#define MAX77705_OTG_CTRL (MAX77705_OTG_MASK | MAX77705_BOOST_MASK)
+
+/* MAX77705_CHG_REG_CNFG_01 */
+#define MAX77705_FCHGTIME_SHIFT 0
+#define MAX77705_FCHGTIME_MASK GENMASK(2, 0)
+#define MAX77705_CHG_RSTRT_SHIFT 4
+#define MAX77705_CHG_RSTRT_MASK GENMASK(5, 4)
+#define MAX77705_FCHGTIME_DISABLE 0
+#define MAX77705_CHG_RSTRT_DISABLE 0x3
+
+#define MAX77705_PQEN_SHIFT 7
+#define MAX77705_PQEN_MASK BIT(7)
+#define MAX77705_CHG_PQEN_DISABLE 0
+#define MAX77705_CHG_PQEN_ENABLE 1
+
+/* MAX77705_CHG_REG_CNFG_02 */
+#define MAX77705_OTG_ILIM_SHIFT 6
+#define MAX77705_OTG_ILIM_MASK GENMASK(7, 6)
+#define MAX77705_OTG_ILIM_500 0
+#define MAX77705_OTG_ILIM_900 1
+#define MAX77705_OTG_ILIM_1200 2
+#define MAX77705_OTG_ILIM_1500 3
+#define MAX77705_CHG_CC GENMASK(5, 0)
+
+/* MAX77705_CHG_REG_CNFG_03 */
+#define MAX77705_TO_ITH_SHIFT 0
+#define MAX77705_TO_ITH_MASK GENMASK(2, 0)
+#define MAX77705_TO_TIME_SHIFT 3
+#define MAX77705_TO_TIME_MASK GENMASK(5, 3)
+#define MAX77705_SYS_TRACK_DIS_SHIFT 7
+#define MAX77705_SYS_TRACK_DIS_MASK BIT(7)
+#define MAX77705_TO_ITH_150MA 0
+#define MAX77705_TO_TIME_30M 3
+#define MAX77705_SYS_TRACK_ENABLE 0
+#define MAX77705_SYS_TRACK_DISABLE 1
+
+/* MAX77705_CHG_REG_CNFG_04 */
+#define MAX77705_CHG_MINVSYS_SHIFT 6
+#define MAX77705_CHG_MINVSYS_MASK GENMASK(7, 6)
+#define MAX77705_CHG_PRM_SHIFT 0
+#define MAX77705_CHG_PRM_MASK GENMASK(5, 0)
+
+#define MAX77705_CHG_CV_PRM_SHIFT 0
+#define MAX77705_CHG_CV_PRM_MASK GENMASK(5, 0)
+
+/* MAX77705_CHG_REG_CNFG_05 */
+#define MAX77705_REG_B2SOVRC_SHIFT 0
+#define MAX77705_REG_B2SOVRC_MASK GENMASK(3, 0)
+#define MAX77705_B2SOVRC_DISABLE 0
+#define MAX77705_B2SOVRC_4_5A 6
+#define MAX77705_B2SOVRC_4_8A 8
+#define MAX77705_B2SOVRC_5_0A 9
+
+/* MAX77705_CHG_CNFG_06 */
+#define MAX77705_WDTCLR_SHIFT 0
+#define MAX77705_WDTCLR_MASK GENMASK(1, 0)
+#define MAX77705_WDTCLR 1
+#define MAX77705_CHGPROT_MASK GENMASK(3, 2)
+#define MAX77705_CHGPROT_UNLOCKED GENMASK(3, 2)
+#define MAX77705_SLOWEST_LX_SLOPE GENMASK(6, 5)
+
+/* MAX77705_CHG_REG_CNFG_07 */
+#define MAX77705_CHG_FMBST 4
+#define MAX77705_REG_FMBST_SHIFT 2
+#define MAX77705_REG_FMBST_MASK BIT(MAX77705_REG_FMBST_SHIFT)
+#define MAX77705_REG_FGSRC_SHIFT 1
+#define MAX77705_REG_FGSRC_MASK BIT(MAX77705_REG_FGSRC_SHIFT)
+
+/* MAX77705_CHG_REG_CNFG_08 */
+#define MAX77705_REG_FSW_SHIFT 0
+#define MAX77705_REG_FSW_MASK GENMASK(1, 0)
+#define MAX77705_CHG_FSW_3MHz 0
+#define MAX77705_CHG_FSW_2MHz 1
+#define MAX77705_CHG_FSW_1_5MHz 2
+
+/* MAX77705_CHG_REG_CNFG_09 */
+#define MAX77705_CHG_CHGIN_LIM_MASK GENMASK(6, 0)
+#define MAX77705_CHG_EN_MASK BIT(7)
+#define MAX77705_CHG_DISABLE 0
+#define MAX77705_CHARGER_CHG_CHARGING(_reg) \
+ (((_reg) & MAX77705_CHG_EN_MASK) > 1)
+
+
+/* MAX77705_CHG_REG_CNFG_10 */
+#define MAX77705_CHG_WCIN_LIM GENMASK(5, 0)
+
+/* MAX77705_CHG_REG_CNFG_11 */
+#define MAX77705_VBYPSET_SHIFT 0
+#define MAX77705_VBYPSET_MASK GENMASK(6, 0)
+
+/* MAX77705_CHG_REG_CNFG_12 */
+#define MAX77705_CHGINSEL_SHIFT 5
+#define MAX77705_CHGINSEL_MASK BIT(MAX77705_CHGINSEL_SHIFT)
+#define MAX77705_WCINSEL_SHIFT 6
+#define MAX77705_WCINSEL_MASK BIT(MAX77705_WCINSEL_SHIFT)
+#define MAX77705_VCHGIN_REG_MASK GENMASK(4, 3)
+#define MAX77705_WCIN_REG_MASK GENMASK(2, 1)
+#define MAX77705_REG_DISKIP_SHIFT 0
+#define MAX77705_REG_DISKIP_MASK BIT(MAX77705_REG_DISKIP_SHIFT)
+/* REG=4.5V, UVLO=4.7V */
+#define MAX77705_VCHGIN_4_5 0
+/* REG=4.5V, UVLO=4.7V */
+#define MAX77705_WCIN_4_5 0
+#define MAX77705_DISABLE_SKIP 1
+#define MAX77705_AUTO_SKIP 0
+
+/* mA */
+#define MAX77705_CURRENT_STEP 25
+#define MAX77705_CURRENT_WCIN_MAX 1600
+#define MAX77705_CURRENT_CHGIN_MAX 3200
+
+/* Convert current in mA to corresponding CNFG09 value */
+inline u8 max77705_convert_ma_to_chgin_ilim_value(unsigned int cur)
+{
+ if (cur < MAX77705_CURRENT_STEP)
+ return 0;
+ if (cur < MAX77705_CURRENT_CHGIN_MAX)
+ return (cur / MAX77705_CURRENT_STEP) - 1;
+ else
+ return (MAX77705_CURRENT_CHGIN_MAX / MAX77705_CURRENT_STEP) - 1;
+}
+
+/* Convert current in mA to corresponding CNFG10 value */
+inline u8 max77705_convert_ma_to_wcin_ilim_value(unsigned int cur)
+{
+ if (cur < MAX77705_CURRENT_STEP)
+ return 0;
+ if (cur < MAX77705_CURRENT_WCIN_MAX)
+ return (cur / MAX77705_CURRENT_STEP) - 1;
+ else
+ return (MAX77705_CURRENT_WCIN_MAX / MAX77705_CURRENT_STEP) - 1;
+}
+
+struct max77705_charger_data {
+ struct device *dev;
+ struct regmap *regmap;
+ struct power_supply_battery_info *bat_info;
+ struct workqueue_struct *wqueue;
+ struct work_struct chgin_work;
+ struct power_supply *psy_chg;
+};
+
+#endif /* __MAX77705_CHARGER_H */
--
2.39.5
^ permalink raw reply related [flat|nested] 20+ messages in thread* Re: [PATCH v9 8/9] power: supply: max77705: Add charger driver for Maxim 77705
2024-12-02 9:48 ` [PATCH v9 8/9] power: supply: max77705: Add charger driver for Maxim 77705 Dzmitry Sankouski
@ 2024-12-02 10:28 ` Krzysztof Kozlowski
0 siblings, 0 replies; 20+ messages in thread
From: Krzysztof Kozlowski @ 2024-12-02 10:28 UTC (permalink / raw)
To: Dzmitry Sankouski, Sebastian Reichel, Chanwoo Choi, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds
On 02/12/2024 10:48, Dzmitry Sankouski wrote:
> Add driver for Maxim 77705 switch-mode charger (part of max77705
> MFD driver) providing power supply class information to userspace.
>
> The driver is configured through DTS (battery and system related
> settings).
>
> Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
>
...
> +
> +static int max77705_charger_probe(struct platform_device *pdev)
> +{
> + struct power_supply_config pscfg = {};
> + struct i2c_client *i2c_chg;
> + struct max77693_dev *max77705;
> + struct max77705_charger_data *chg;
> + struct device *dev, *parent;
> + struct regmap_irq_chip_data *irq_data;
> + int ret;
> +
> + dev = &pdev->dev;
> + parent = dev->parent;
> + max77705 = dev_get_drvdata(parent);
> +
> + chg = devm_kzalloc(dev, sizeof(*chg), GFP_KERNEL);
> + if (!chg)
> + return -ENOMEM;
> +
> + platform_set_drvdata(pdev, chg);
> +
> + i2c_chg = devm_i2c_new_dummy_device(dev, max77705->i2c->adapter, I2C_ADDR_CHG);
> +
Same problems as in other patchset. This really needs some work to look
closer to Linux coding style.
> + if (IS_ERR(i2c_chg))
> + return PTR_ERR(i2c_chg);
> +
> + chg->regmap = devm_regmap_init_i2c(i2c_chg, &max77705_chg_regmap_config);
> +
> + if (IS_ERR(chg->regmap))
> + return PTR_ERR(chg->regmap);
> +
> + chg->dev = dev;
> +
> + ret = regmap_update_bits(chg->regmap,
> + MAX77705_CHG_REG_INT_MASK,
> + MAX77705_CHGIN_IM, 0);
> +
> + if (ret)
> + return ret;
> +
> + pscfg.of_node = dev->of_node;
> + pscfg.drv_data = chg;
> +
> + chg->psy_chg = devm_power_supply_register(dev, &max77705_charger_psy_desc, &pscfg);
> + if (IS_ERR(chg->psy_chg))
> + return PTR_ERR(chg->psy_chg);
> +
> + max77705_charger_irq_chip.irq_drv_data = chg;
> + ret = devm_regmap_add_irq_chip(chg->dev, chg->regmap, max77705->irq,
> + IRQF_ONESHOT | IRQF_SHARED, 0,
> + &max77705_charger_irq_chip,
> + &irq_data);
> + if (ret) {
> + dev_err(dev, "failed to add irq chip: %d\n", ret);
> + return ret;
> + }
> +
> + chg->wqueue = create_singlethread_workqueue(dev_name(dev));
> + if (IS_ERR(chg->wqueue)) {
> + dev_err(dev, "failed to create workqueue\n");
> + return PTR_ERR(chg->wqueue);
> + }
> + INIT_WORK(&chg->chgin_work, max77705_chgin_isr_work);
> +
> + max77705_charger_initialize(chg);
> +
> + return max77705_charger_enable(chg);
> +}
> +
> +static void max77705_charger_remove(struct platform_device *pdev)
> +{
> + struct max77705_charger_data *chg = platform_get_drvdata(pdev);
> +
> + max77705_charger_disable(chg);
Use devm for this. You use shared interrupt, so you are not suppose to
mix devm and non-devm, even if this is actually safe.
> +}
> +
> +static const struct of_device_id max77705_charger_of_match[] = {
> + { .compatible = "maxim,max77705-charger" },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, max77705_charger_of_match);
> +
> +static struct platform_driver max77705_charger_driver = {
> + .driver = {
> + .name = "max77705-charger",
> + .of_match_table = max77705_charger_of_match,
> + },
> + .probe = max77705_charger_probe,
> + .remove = max77705_charger_remove,
> +};
> +module_platform_driver(max77705_charger_driver);
> +
> +MODULE_AUTHOR("Dzmitry Sankouski <dsankouski@gmail.com>");
> +MODULE_DESCRIPTION("Maxim MAX77705 charger driver");
> +MODULE_LICENSE("GPL");
> diff --git a/include/linux/power/max77705_charger.h b/include/linux/power/max77705_charger.h
> new file mode 100644
> index 000000000000..44ecd6b32cbe
> --- /dev/null
> +++ b/include/linux/power/max77705_charger.h
> @@ -0,0 +1,216 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Maxim MAX77705 definitions.
> + *
> + * Copyright (C) 2015 Samsung Electronics, Inc.
> + * Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com>
> + */
...
> +
> +/* MAX77705_CHG_REG_CNFG_10 */
> +#define MAX77705_CHG_WCIN_LIM GENMASK(5, 0)
> +
> +/* MAX77705_CHG_REG_CNFG_11 */
> +#define MAX77705_VBYPSET_SHIFT 0
> +#define MAX77705_VBYPSET_MASK GENMASK(6, 0)
> +
> +/* MAX77705_CHG_REG_CNFG_12 */
> +#define MAX77705_CHGINSEL_SHIFT 5
> +#define MAX77705_CHGINSEL_MASK BIT(MAX77705_CHGINSEL_SHIFT)
> +#define MAX77705_WCINSEL_SHIFT 6
> +#define MAX77705_WCINSEL_MASK BIT(MAX77705_WCINSEL_SHIFT)
> +#define MAX77705_VCHGIN_REG_MASK GENMASK(4, 3)
> +#define MAX77705_WCIN_REG_MASK GENMASK(2, 1)
> +#define MAX77705_REG_DISKIP_SHIFT 0
> +#define MAX77705_REG_DISKIP_MASK BIT(MAX77705_REG_DISKIP_SHIFT)
> +/* REG=4.5V, UVLO=4.7V */
> +#define MAX77705_VCHGIN_4_5 0
> +/* REG=4.5V, UVLO=4.7V */
> +#define MAX77705_WCIN_4_5 0
> +#define MAX77705_DISABLE_SKIP 1
> +#define MAX77705_AUTO_SKIP 0
> +
> +/* mA */
> +#define MAX77705_CURRENT_STEP 25
> +#define MAX77705_CURRENT_WCIN_MAX 1600
> +#define MAX77705_CURRENT_CHGIN_MAX 3200
> +
> +/* Convert current in mA to corresponding CNFG09 value */
> +inline u8 max77705_convert_ma_to_chgin_ilim_value(unsigned int cur)
> +{
> + if (cur < MAX77705_CURRENT_STEP)
> + return 0;
> + if (cur < MAX77705_CURRENT_CHGIN_MAX)
> + return (cur / MAX77705_CURRENT_STEP) - 1;
> + else
> + return (MAX77705_CURRENT_CHGIN_MAX / MAX77705_CURRENT_STEP) - 1;
> +}
Drop all inlines from header. You are not suppose to have such driver
functions inlined all over the users.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 20+ messages in thread
* [PATCH v9 9/9] leds: max77705: Add LEDs support
2024-12-02 9:47 [PATCH v9 0/9] Add support for Maxim Integrated MAX77705 PMIC Dzmitry Sankouski
` (7 preceding siblings ...)
2024-12-02 9:48 ` [PATCH v9 8/9] power: supply: max77705: Add charger driver for Maxim 77705 Dzmitry Sankouski
@ 2024-12-02 9:48 ` Dzmitry Sankouski
2024-12-02 10:29 ` Krzysztof Kozlowski
8 siblings, 1 reply; 20+ messages in thread
From: Dzmitry Sankouski @ 2024-12-02 9:48 UTC (permalink / raw)
To: Sebastian Reichel, Chanwoo Choi, Krzysztof Kozlowski, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds,
Dzmitry Sankouski
This adds basic support for LEDs for the max77705 PMIC.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
---
Changes for v8:
- join line where possible to fit in 100 chars
- change comment style C++ -> C
Changes for v6:
- change compatible suffix to 'rgb'
- remove I2C dependency in Kconfig
- remove copyright and author from 'based on' header statement
- replace MFD abbreviation with PMIC
- MAINTAINERS: alphabetic order
- max77705_rgb_blink: replace ternary operators with if..else if sequence
- max77705_rgb_blink: move hardcoded numbers to constants
- max77705_led_brightness_set: move ret to the bottom
- s/map/regmap
- replace device_for_each_child_node with scoped version
- s/rv/ret
Changes for v5:
- use same hardware name in Kconfig and module descriptions
- remove copyrighter owner from module authors
Changes in v4:
- inline BLINK_(ON|OFF) macro
- remove camel case
- drop backwards compatibility(new driver)
- drop module alias
---
MAINTAINERS | 1 +
drivers/leds/Kconfig | 6 ++++++
drivers/leds/Makefile | 1 +
drivers/leds/leds-max77705.c | 167 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/max77705-private.h | 18 ++++++++++++++++
5 files changed, 193 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index b269d0456da3..7a21e871ba7c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14188,6 +14188,7 @@ F: Documentation/devicetree/bindings/*/maxim,max77693.yaml
F: Documentation/devicetree/bindings/*/maxim,max77705*.yaml
F: Documentation/devicetree/bindings/*/maxim,max77843.yaml
F: Documentation/devicetree/bindings/clock/maxim,max77686.txt
+F: drivers/leds/leds-max77705.c
F: drivers/*/*max77843.c
F: drivers/*/max14577*.c
F: drivers/*/max77686*.c
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index b784bb74a837..27ce55b32543 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -753,6 +753,12 @@ config LEDS_MAX77650
help
LEDs driver for MAX77650 family of PMICs from Maxim Integrated.
+config LEDS_MAX77705
+ tristate "LED support for Maxim MAX77705 PMIC"
+ depends on MFD_MAX77705 && LEDS_CLASS
+ help
+ LED driver for MAX77705 PMIC from Maxim Integrated.
+
config LEDS_MAX8997
tristate "LED support for MAX8997 PMIC"
depends on LEDS_CLASS && MFD_MAX8997
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 18afbb5a23ee..096bf244527d 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -60,6 +60,7 @@ obj-$(CONFIG_LEDS_LP8860) += leds-lp8860.o
obj-$(CONFIG_LEDS_LT3593) += leds-lt3593.o
obj-$(CONFIG_LEDS_MAX5970) += leds-max5970.o
obj-$(CONFIG_LEDS_MAX77650) += leds-max77650.o
+obj-$(CONFIG_LEDS_MAX77705) += leds-max77705.o
obj-$(CONFIG_LEDS_MAX8997) += leds-max8997.o
obj-$(CONFIG_LEDS_MC13783) += leds-mc13783.o
obj-$(CONFIG_LEDS_MENF21BMC) += leds-menf21bmc.o
diff --git a/drivers/leds/leds-max77705.c b/drivers/leds/leds-max77705.c
new file mode 100644
index 000000000000..29db23702231
--- /dev/null
+++ b/drivers/leds/leds-max77705.c
@@ -0,0 +1,167 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Based on leds-max77650 driver
+ *
+ * LED driver for MAXIM 77705 PMIC.
+ * Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.org>
+ */
+
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/mfd/max77705-private.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#define MAX77705_LED_NUM_LEDS 4
+#define MAX77705_LED_EN_MASK GENMASK(1, 0)
+#define MAX77705_LED_MAX_BRIGHTNESS 0xff
+
+struct max77705_led {
+ struct led_classdev cdev;
+ struct regmap *regmap;
+ unsigned int en_shift;
+ unsigned int reg_brightness;
+};
+
+static struct max77705_led *max77705_to_led(struct led_classdev *cdev)
+{
+ return container_of(cdev, struct max77705_led, cdev);
+}
+
+static int max77705_rgb_blink(struct led_classdev *cdev,
+ unsigned long *delay_on,
+ unsigned long *delay_off)
+{
+ struct max77705_led *led = max77705_to_led(cdev);
+ int value, on_value, off_value;
+
+ if (*delay_on < MAX77705_RGB_DELAY_100_STEP)
+ on_value = 0;
+ else if (*delay_on < MAX77705_RGB_DELAY_100_STEP_LIM)
+ on_value = *delay_on / MAX77705_RGB_DELAY_100_STEP - 1;
+ else if (*delay_on < MAX77705_RGB_DELAY_250_STEP_LIM)
+ on_value = (*delay_on - MAX77705_RGB_DELAY_100_STEP_LIM) /
+ MAX77705_RGB_DELAY_250_STEP +
+ MAX77705_RGB_DELAY_100_STEP_COUNT;
+ else
+ on_value = 15;
+
+ on_value <<= 4;
+
+ if (*delay_off < 1)
+ off_value = 0;
+ else if (*delay_off < MAX77705_RGB_DELAY_500_STEP)
+ off_value = 1;
+ else if (*delay_off < MAX77705_RGB_DELAY_500_STEP_LIM)
+ off_value = *delay_off / MAX77705_RGB_DELAY_500_STEP;
+ else if (*delay_off < MAX77705_RGB_DELAY_1000_STEP_LIM)
+ off_value = (*delay_off - MAX77705_RGB_DELAY_1000_STEP_LIM) /
+ MAX77705_RGB_DELAY_1000_STEP +
+ MAX77705_RGB_DELAY_500_STEP_COUNT;
+ else if (*delay_off < MAX77705_RGB_DELAY_2000_STEP_LIM)
+ off_value = (*delay_off - MAX77705_RGB_DELAY_2000_STEP_LIM) /
+ MAX77705_RGB_DELAY_2000_STEP +
+ MAX77705_RGB_DELAY_1000_STEP_COUNT;
+ else
+ off_value = 15;
+
+ value = on_value | off_value;
+ return regmap_write(led->regmap, MAX77705_RGBLED_REG_LEDBLNK, value);
+}
+
+static int max77705_led_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct max77705_led *led = max77705_to_led(cdev);
+ unsigned long blink_default = 0;
+ int ret;
+
+ if (brightness == LED_OFF) {
+ /* Flash OFF */
+ ret = regmap_update_bits(led->regmap,
+ MAX77705_RGBLED_REG_LEDEN,
+ MAX77705_LED_EN_MASK << led->en_shift, 0);
+ max77705_rgb_blink(cdev, &blink_default, &blink_default);
+ } else {
+ /* Set current */
+ ret = regmap_write(led->regmap, led->reg_brightness, brightness);
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_update_bits(led->regmap,
+ MAX77705_RGBLED_REG_LEDEN, LED_ON << led->en_shift,
+ MAX77705_LED_EN_MASK << led->en_shift);
+ }
+
+ return ret;
+}
+
+static int max77705_led_probe(struct platform_device *pdev)
+{
+ struct max77705_led *leds, *led;
+ struct device *dev = &pdev->dev;
+ struct regmap *regmap;
+ int ret, num_leds;
+ u32 reg;
+
+ leds = devm_kcalloc(dev, sizeof(*leds), MAX77705_LED_NUM_LEDS, GFP_KERNEL);
+ if (!leds)
+ return -ENOMEM;
+
+ regmap = dev_get_regmap(dev->parent, NULL);
+ if (!regmap)
+ return -ENODEV;
+
+ num_leds = device_get_child_node_count(dev);
+ if (num_leds < 0 || num_leds > MAX77705_LED_NUM_LEDS)
+ return -ENODEV;
+
+ device_for_each_child_node_scoped(dev, child) {
+ struct led_init_data init_data = {};
+
+ ret = fwnode_property_read_u32(child, "reg", ®);
+ if (ret || reg >= MAX77705_LED_NUM_LEDS)
+ ret = -EINVAL;
+
+ led = &leds[reg];
+ led->regmap = regmap;
+ led->reg_brightness = MAX77705_RGBLED_REG_LED0BRT + reg;
+ led->en_shift = MAX77705_RGBLED_EN_WIDTH * reg;
+ led->cdev.brightness_set_blocking = max77705_led_brightness_set;
+ led->cdev.blink_set = max77705_rgb_blink;
+ led->cdev.max_brightness = MAX77705_LED_MAX_BRIGHTNESS;
+
+ init_data.fwnode = child;
+
+ ret = devm_led_classdev_register_ext(dev, &led->cdev,
+ &init_data);
+ if (ret)
+ return ret;
+
+ ret = max77705_led_brightness_set(&led->cdev, LED_OFF);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct of_device_id max77705_led_of_match[] = {
+ { .compatible = "maxim,max77705-rgb" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, max77705_led_of_match);
+
+static struct platform_driver max77705_led_driver = {
+ .driver = {
+ .name = "max77705-led",
+ .of_match_table = max77705_led_of_match,
+ },
+ .probe = max77705_led_probe,
+};
+module_platform_driver(max77705_led_driver);
+
+MODULE_DESCRIPTION("Maxim MAX77705 LED driver");
+MODULE_AUTHOR("Dzmitry Sankouski <dsankouski@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/max77705-private.h b/include/linux/mfd/max77705-private.h
index be781a0f9802..2140693ce747 100644
--- a/include/linux/mfd/max77705-private.h
+++ b/include/linux/mfd/max77705-private.h
@@ -35,6 +35,24 @@
#define MAX77705_SYSTEM_IRQ_SYSOVLO_INT BIT(5)
#define MAX77705_SYSTEM_IRQ_TSHDN_INT BIT(6)
#define MAX77705_SYSTEM_IRQ_TM_INT BIT(7)
+/* MAX77705_RGBLED_REG_LEDEN register */
+#define MAX77705_RGBLED_EN_WIDTH 2
+/* MAX77705_RGBLED_REG_LEDBLNK register */
+#define MAX77705_RGB_DELAY_100_STEP_LIM 500
+#define MAX77705_RGB_DELAY_100_STEP_COUNT 4
+#define MAX77705_RGB_DELAY_100_STEP 100
+#define MAX77705_RGB_DELAY_250_STEP_LIM 3250
+#define MAX77705_RGB_DELAY_250_STEP 250
+#define MAX77705_RGB_DELAY_500_STEP 500
+#define MAX77705_RGB_DELAY_500_STEP_COUNT 10
+#define MAX77705_RGB_DELAY_500_STEP_LIM 5000
+#define MAX77705_RGB_DELAY_1000_STEP_LIM 8000
+#define MAX77705_RGB_DELAY_1000_STEP_COUNT 13
+#define MAX77705_RGB_DELAY_1000_STEP 1000
+#define MAX77705_RGB_DELAY_2000_STEP 2000
+#define MAX77705_RGB_DELAY_2000_STEP_COUNT 13
+#define MAX77705_RGB_DELAY_2000_STEP_LIM 12000
+
enum max77705_hw_rev {
MAX77705_PASS1 = 1,
--
2.39.5
^ permalink raw reply related [flat|nested] 20+ messages in thread* Re: [PATCH v9 9/9] leds: max77705: Add LEDs support
2024-12-02 9:48 ` [PATCH v9 9/9] leds: max77705: Add LEDs support Dzmitry Sankouski
@ 2024-12-02 10:29 ` Krzysztof Kozlowski
2024-12-03 12:21 ` Dzmitry Sankouski
0 siblings, 1 reply; 20+ messages in thread
From: Krzysztof Kozlowski @ 2024-12-02 10:29 UTC (permalink / raw)
To: Dzmitry Sankouski, Sebastian Reichel, Chanwoo Choi, Lee Jones,
Rob Herring, Conor Dooley, Dmitry Torokhov, Pavel Machek,
Hans de Goede, Marek Szyprowski, Sebastian Krzyszkowiak,
Purism Kernel Team
Cc: linux-pm, linux-kernel, devicetree, linux-input, linux-leds
On 02/12/2024 10:48, Dzmitry Sankouski wrote:
> This adds basic support for LEDs for the max77705 PMIC.
>
> Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
>
> ---
> Changes for v8:
> - join line where possible to fit in 100 chars
Coding style asks for 80. checkpatch is not a coding style, unless this
came from maintainer's review.
> - change comment style C++ -> C
>
> Changes for v6:
> - change compatible suffix to 'rgb'
> - remove I2C dependency in Kconfig
> - remove copyright and author from 'based on' header statement
> - replace MFD abbreviation with PMIC
> - MAINTAINERS: alphabetic order
> - max77705_rgb_blink: replace ternary operators with if..else if sequence
> - max77705_rgb_blink: move hardcoded numbers to constants
> - max77705_led_brightness_set: move ret to the bottom
> - s/map/regmap
> - replace device_for_each_child_node with scoped version
> - s/rv/ret
> Changes for v5:
> - use same hardware name in Kconfig and module descriptions
> - remove copyrighter owner from module authors
>
> Changes in v4:
> - inline BLINK_(ON|OFF) macro
> - remove camel case
> - drop backwards compatibility(new driver)
> - drop module alias
> ---
> MAINTAINERS | 1 +
> drivers/leds/Kconfig | 6 ++++++
> drivers/leds/Makefile | 1 +
> drivers/leds/leds-max77705.c | 167 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> include/linux/mfd/max77705-private.h | 18 ++++++++++++++++
> 5 files changed, 193 insertions(+)
>
> diff --git a/MAINTAINERS b/MAINTAINERS
...
> diff --git a/include/linux/mfd/max77705-private.h b/include/linux/mfd/max77705-private.h
> index be781a0f9802..2140693ce747 100644
> --- a/include/linux/mfd/max77705-private.h
> +++ b/include/linux/mfd/max77705-private.h
> @@ -35,6 +35,24 @@
> #define MAX77705_SYSTEM_IRQ_SYSOVLO_INT BIT(5)
> #define MAX77705_SYSTEM_IRQ_TSHDN_INT BIT(6)
> #define MAX77705_SYSTEM_IRQ_TM_INT BIT(7)
> +/* MAX77705_RGBLED_REG_LEDEN register */
> +#define MAX77705_RGBLED_EN_WIDTH 2
> +/* MAX77705_RGBLED_REG_LEDBLNK register */
> +#define MAX77705_RGB_DELAY_100_STEP_LIM 500
> +#define MAX77705_RGB_DELAY_100_STEP_COUNT 4
> +#define MAX77705_RGB_DELAY_100_STEP 100
> +#define MAX77705_RGB_DELAY_250_STEP_LIM 3250
> +#define MAX77705_RGB_DELAY_250_STEP 250
> +#define MAX77705_RGB_DELAY_500_STEP 500
> +#define MAX77705_RGB_DELAY_500_STEP_COUNT 10
> +#define MAX77705_RGB_DELAY_500_STEP_LIM 5000
> +#define MAX77705_RGB_DELAY_1000_STEP_LIM 8000
> +#define MAX77705_RGB_DELAY_1000_STEP_COUNT 13
> +#define MAX77705_RGB_DELAY_1000_STEP 1000
> +#define MAX77705_RGB_DELAY_2000_STEP 2000
> +#define MAX77705_RGB_DELAY_2000_STEP_COUNT 13
> +#define MAX77705_RGB_DELAY_2000_STEP_LIM 12000
> +
>
No need for multiple line breaks.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH v9 9/9] leds: max77705: Add LEDs support
2024-12-02 10:29 ` Krzysztof Kozlowski
@ 2024-12-03 12:21 ` Dzmitry Sankouski
2024-12-05 16:42 ` Lee Jones
0 siblings, 1 reply; 20+ messages in thread
From: Dzmitry Sankouski @ 2024-12-03 12:21 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Sebastian Reichel, Chanwoo Choi, Lee Jones, Rob Herring,
Conor Dooley, Dmitry Torokhov, Pavel Machek, Hans de Goede,
Marek Szyprowski, Sebastian Krzyszkowiak, Purism Kernel Team,
linux-pm, linux-kernel, devicetree, linux-input, linux-leds
пн, 2 дек. 2024 г. в 13:30, Krzysztof Kozlowski <krzk@kernel.org>:
>
> On 02/12/2024 10:48, Dzmitry Sankouski wrote:
> > This adds basic support for LEDs for the max77705 PMIC.
> >
> > Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
> >
> > ---
> > Changes for v8:
> > - join line where possible to fit in 100 chars
>
>
> Coding style asks for 80. checkpatch is not a coding style, unless this
> came from maintainer's review.
>
On v6 discussion, Lee Jones stated 'This is old guidance':
https://patchwork.kernel.org/project/linux-input/patch/20241007-starqltechn_integration_upstream-v6-7-0d38b5090c57@gmail.com/
--
Best regards and thanks for review,
Dzmitry
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH v9 9/9] leds: max77705: Add LEDs support
2024-12-03 12:21 ` Dzmitry Sankouski
@ 2024-12-05 16:42 ` Lee Jones
0 siblings, 0 replies; 20+ messages in thread
From: Lee Jones @ 2024-12-05 16:42 UTC (permalink / raw)
To: Dzmitry Sankouski
Cc: Krzysztof Kozlowski, Sebastian Reichel, Chanwoo Choi, Rob Herring,
Conor Dooley, Dmitry Torokhov, Pavel Machek, Hans de Goede,
Marek Szyprowski, Sebastian Krzyszkowiak, Purism Kernel Team,
linux-pm, linux-kernel, devicetree, linux-input, linux-leds
On Tue, 03 Dec 2024, Dzmitry Sankouski wrote:
> пн, 2 дек. 2024 г. в 13:30, Krzysztof Kozlowski <krzk@kernel.org>:
> >
> > On 02/12/2024 10:48, Dzmitry Sankouski wrote:
> > > This adds basic support for LEDs for the max77705 PMIC.
> > >
> > > Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
> > >
> > > ---
> > > Changes for v8:
> > > - join line where possible to fit in 100 chars
> >
> >
> > Coding style asks for 80. checkpatch is not a coding style, unless this
> > came from maintainer's review.
> >
>
> On v6 discussion, Lee Jones stated 'This is old guidance':
> https://patchwork.kernel.org/project/linux-input/patch/20241007-starqltechn_integration_upstream-v6-7-0d38b5090c57@gmail.com/
I prefer 100-chars where it makes sense. The future is bright!
--
Lee Jones [李琼斯]
^ permalink raw reply [flat|nested] 20+ messages in thread