* [PATCH v8 00/11] mfd: add support for max77650 PMIC
@ 2019-04-03 9:00 Bartosz Golaszewski
2019-04-03 9:00 ` [PATCH v8 01/11] dt-bindings: mfd: add DT bindings for max77650 Bartosz Golaszewski
` (10 more replies)
0 siblings, 11 replies; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-03 9:00 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Lee Jones, Sebastian Reichel,
Liam Girdwood, Greg Kroah-Hartman
Cc: linux-kernel, linux-gpio, devicetree, linux-input, linux-leds,
linux-pm, Bartosz Golaszewski
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
This series adds support for max77650 ultra low-power PMIC. It provides
the core mfd driver and a set of five sub-drivers for the regulator,
power supply, gpio, leds and input subsystems.
Patches 1-4 add the DT binding documents. Patch 5 documents mfd_add_devices().
Patches 6-10 add all drivers. Last patch adds a MAINTAINERS entry for this
device.
The regulator part is already upstream.
v1 -> v2:
=========
General:
- use C++ style comments for the SPDX license identifier and the
copyright header
- s/MODULE_LICENSE("GPL")/MODULE_LICENSE("GPL v2")/
- lookup the virtual interrupt numbers in the MFD driver, setup
resources for child devices and use platform_get_irq_byname()
in sub-drivers
- picked up review tags
- use devm_request_any_context_irq() for interrupt requests
LEDs:
- changed the max77650_leds_ prefix to max77650_led_
- drop the max77650_leds structure as the only field it held was the
regmap pointer, move said pointer to struct max77650_led
- change the driver name to "max77650-led"
- drop the last return value check and return the result of
regmap_write() directly
- change the labeling scheme to one consistent with other LED drivers
ONKEY:
- drop the key reporting helper and call the input functions directly
from interrupt handlers
- rename the rv local variable to error
- drop parent device asignment
Regulator:
- drop the unnecessary init_data lookup from the driver code
- drop unnecessary include
Charger:
- disable the charger on driver remove
- change the power supply type to POWER_SUPPLY_TYPE_USB
GPIO:
- drop interrupt support until we have correct implementation of hierarchical
irqs in gpiolib
v2 -> v3:
=========
General:
- dropped regulator patches as they're already in Mark Brown's branch
LED:
- fix the compatible string in the DT binding example
- use the max_brightness property
- use a common prefix ("MAX77650_LED") for all defines in the driver
MFD:
- add the MODULE_DEVICE_TABLE()
- add a sentinel to the of_device_id array
- constify the pointers to irq names
- use an enum instead of defines for interrupt indexes
v3 -> v4:
=========
GPIO:
- as discussed with Linus Walleij: the gpio-controller is now part of
the core mfd module (we don't spawn a sub-node anymore), the binding
document for GPIO has been dropped, the GPIO properties have been
defined in the binding document for the mfd core, the interrupt
functionality has been reintroduced with the irq directly passed from
the mfd part
- due to the above changes the Reviewed-by tag from Linus was dropped
v4 -> v5:
=========
General:
- add a patch documenting mfd_add_devices()
MFD:
- pass the regmap irq_chip irq domain to mfd over mfd_add_devices so that
the hw interrupts from resources can be correctly mapped to virtual irqs
- remove the enum listing cell indexes
- extend Kconfig help
- add a link to the programming manual
- use REGMAP_IRQ_REG() for regmap interrupts (except for GPI which has
is composed of two hw interrupts for rising and falling edge)
- add error messages in probe
- use PLATFORM_DEVID_NONE constant in devm_mfd_add_devices()
- set irq_base to 0 in regmap_add_irq_chip() as other users to, it's only
relevant if it's > 0
Charger:
- use non-maxim specific property names for minimum input voltage and current
limit
- code shrink by using the enable/disable charger helpers everywhere
- use more descriptive names for constants
Onkey:
- use EV_SW event type for slide mode
LED:
- remove stray " from Kconfig help
v5 -> v6:
=========
MFD:
- remove stray spaces in the binding document
- rename the example dt node
- remove unnecessary interrupt-parent property from the bindings
LED:
- add a missing dependency on LEDS_CLASS to Kconfig
Onkey:
- use boolean for the slide button property
Charger:
- fix the property names in DT example
- make constants even more readable
v6 -> v7:
=========
Charger:
- rename the current limit property to current-limit-microamp
v7 -> v8:
=========
General:
- collected acks from Lee
- changed the documentation for mfd_add_devices() as suggested by Lee
- rebased on top of v5.1-rc3
Bartosz Golaszewski (11):
dt-bindings: mfd: add DT bindings for max77650
dt-bindings: power: supply: add DT bindings for max77650
dt-bindings: leds: add DT bindings for max77650
dt-bindings: input: add DT bindings for max77650
mfd: core: document mfd_add_devices()
mfd: max77650: new core mfd driver
power: supply: max77650: add support for battery charger
gpio: max77650: add GPIO support
leds: max77650: add LEDs support
input: max77650: add onkey support
MAINTAINERS: add an entry for max77650 mfd driver
.../bindings/input/max77650-onkey.txt | 26 ++
.../bindings/leds/leds-max77650.txt | 57 +++
.../devicetree/bindings/mfd/max77650.txt | 46 +++
.../power/supply/max77650-charger.txt | 27 ++
MAINTAINERS | 14 +
drivers/gpio/Kconfig | 7 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-max77650.c | 190 +++++++++
drivers/input/misc/Kconfig | 9 +
drivers/input/misc/Makefile | 1 +
drivers/input/misc/max77650-onkey.c | 121 ++++++
drivers/leds/Kconfig | 6 +
drivers/leds/Makefile | 1 +
drivers/leds/leds-max77650.c | 147 +++++++
drivers/mfd/Kconfig | 14 +
drivers/mfd/Makefile | 1 +
drivers/mfd/max77650.c | 234 +++++++++++
drivers/mfd/mfd-core.c | 13 +
drivers/power/supply/Kconfig | 7 +
drivers/power/supply/Makefile | 1 +
drivers/power/supply/max77650-charger.c | 367 ++++++++++++++++++
include/linux/mfd/max77650.h | 59 +++
22 files changed, 1349 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/max77650-onkey.txt
create mode 100644 Documentation/devicetree/bindings/leds/leds-max77650.txt
create mode 100644 Documentation/devicetree/bindings/mfd/max77650.txt
create mode 100644 Documentation/devicetree/bindings/power/supply/max77650-charger.txt
create mode 100644 drivers/gpio/gpio-max77650.c
create mode 100644 drivers/input/misc/max77650-onkey.c
create mode 100644 drivers/leds/leds-max77650.c
create mode 100644 drivers/mfd/max77650.c
create mode 100644 drivers/power/supply/max77650-charger.c
create mode 100644 include/linux/mfd/max77650.h
--
2.21.0
^ permalink raw reply [flat|nested] 23+ messages in thread
* [PATCH v8 01/11] dt-bindings: mfd: add DT bindings for max77650
2019-04-03 9:00 [PATCH v8 00/11] mfd: add support for max77650 PMIC Bartosz Golaszewski
@ 2019-04-03 9:00 ` Bartosz Golaszewski
2019-04-03 9:00 ` [PATCH v8 02/11] dt-bindings: power: supply: " Bartosz Golaszewski
` (9 subsequent siblings)
10 siblings, 0 replies; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-03 9:00 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Lee Jones, Sebastian Reichel,
Liam Girdwood, Greg Kroah-Hartman
Cc: linux-kernel, linux-gpio, devicetree, linux-input, linux-leds,
linux-pm, Bartosz Golaszewski, Rob Herring
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Add a DT binding document for max77650 ultra-low power PMIC. This
describes the core mfd device and the GPIO module.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
---
.../devicetree/bindings/mfd/max77650.txt | 46 +++++++++++++++++++
1 file changed, 46 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/max77650.txt
diff --git a/Documentation/devicetree/bindings/mfd/max77650.txt b/Documentation/devicetree/bindings/mfd/max77650.txt
new file mode 100644
index 000000000000..b529d8d19335
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/max77650.txt
@@ -0,0 +1,46 @@
+MAX77650 ultra low-power PMIC from Maxim Integrated.
+
+Required properties:
+-------------------
+- compatible: Must be "maxim,max77650"
+- reg: I2C device address.
+- interrupts: The interrupt on the parent the controller is
+ connected to.
+- interrupt-controller: Marks the device node as an interrupt controller.
+- #interrupt-cells: Must be <2>.
+
+- gpio-controller: Marks the device node as a gpio controller.
+- #gpio-cells: Must be <2>. The first cell is the pin number and
+ the second cell is used to specify the gpio active
+ state.
+
+Optional properties:
+--------------------
+gpio-line-names: Single string containing the name of the GPIO line.
+
+The GPIO-controller module is represented as part of the top-level PMIC
+node. The device exposes a single GPIO line.
+
+For device-tree bindings of other sub-modules (regulator, power supply,
+LEDs and onkey) refer to the binding documents under the respective
+sub-system directories.
+
+For more details on GPIO bindings, please refer to the generic GPIO DT
+binding document <devicetree/bindings/gpio/gpio.txt>.
+
+Example:
+--------
+
+ pmic@48 {
+ compatible = "maxim,max77650";
+ reg = <0x48>;
+
+ interrupt-controller;
+ interrupt-parent = <&gpio2>;
+ #interrupt-cells = <2>;
+ interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "max77650-charger";
+ };
--
2.21.0
^ permalink raw reply related [flat|nested] 23+ messages in thread
* [PATCH v8 02/11] dt-bindings: power: supply: add DT bindings for max77650
2019-04-03 9:00 [PATCH v8 00/11] mfd: add support for max77650 PMIC Bartosz Golaszewski
2019-04-03 9:00 ` [PATCH v8 01/11] dt-bindings: mfd: add DT bindings for max77650 Bartosz Golaszewski
@ 2019-04-03 9:00 ` Bartosz Golaszewski
2019-04-06 7:07 ` Rob Herring
2019-04-03 9:01 ` [PATCH v8 03/11] dt-bindings: leds: " Bartosz Golaszewski
` (8 subsequent siblings)
10 siblings, 1 reply; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-03 9:00 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Lee Jones, Sebastian Reichel,
Liam Girdwood, Greg Kroah-Hartman
Cc: linux-kernel, linux-gpio, devicetree, linux-input, linux-leds,
linux-pm, Bartosz Golaszewski
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Add the DT binding document for the battery charger module of max77650.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
.../power/supply/max77650-charger.txt | 27 +++++++++++++++++++
1 file changed, 27 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/supply/max77650-charger.txt
diff --git a/Documentation/devicetree/bindings/power/supply/max77650-charger.txt b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
new file mode 100644
index 000000000000..fef188144386
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
@@ -0,0 +1,27 @@
+Battery charger driver for MAX77650 PMIC from Maxim Integrated.
+
+This module is part of the MAX77650 MFD device. For more details
+see Documentation/devicetree/bindings/mfd/max77650.txt.
+
+The charger is represented as a sub-node of the PMIC node on the device tree.
+
+Required properties:
+--------------------
+- compatible: Must be "maxim,max77650-charger"
+
+Optional properties:
+--------------------
+- min-microvolt: Minimum CHGIN regulation voltage (in microvolts). Must be
+ one of: 4000000, 4100000, 4200000, 4300000, 4400000,
+ 4500000, 4600000, 4700000.
+- current-limit-microamp: CHGIN input current limit (in microamps). Must
+ be one of: 95000, 190000, 285000, 380000, 475000.
+
+Example:
+--------
+
+ charger {
+ compatible = "maxim,max77650-charger";
+ min-microvolt = <4200000>;
+ curr-lim-microamp = <285000>;
+ };
--
2.21.0
^ permalink raw reply related [flat|nested] 23+ messages in thread
* [PATCH v8 03/11] dt-bindings: leds: add DT bindings for max77650
2019-04-03 9:00 [PATCH v8 00/11] mfd: add support for max77650 PMIC Bartosz Golaszewski
2019-04-03 9:00 ` [PATCH v8 01/11] dt-bindings: mfd: add DT bindings for max77650 Bartosz Golaszewski
2019-04-03 9:00 ` [PATCH v8 02/11] dt-bindings: power: supply: " Bartosz Golaszewski
@ 2019-04-03 9:01 ` Bartosz Golaszewski
2019-04-04 13:22 ` Pavel Machek
2019-04-03 9:01 ` [PATCH v8 04/11] dt-bindings: input: " Bartosz Golaszewski
` (7 subsequent siblings)
10 siblings, 1 reply; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-03 9:01 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Lee Jones, Sebastian Reichel,
Liam Girdwood, Greg Kroah-Hartman
Cc: linux-kernel, linux-gpio, devicetree, linux-input, linux-leds,
linux-pm, Bartosz Golaszewski, Rob Herring
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Add the DT binding document for the LEDs module of max77650.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
.../bindings/leds/leds-max77650.txt | 57 +++++++++++++++++++
1 file changed, 57 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/leds-max77650.txt
diff --git a/Documentation/devicetree/bindings/leds/leds-max77650.txt b/Documentation/devicetree/bindings/leds/leds-max77650.txt
new file mode 100644
index 000000000000..3a67115cc1da
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-max77650.txt
@@ -0,0 +1,57 @@
+LED driver for MAX77650 PMIC from Maxim Integrated.
+
+This module is part of the MAX77650 MFD device. For more details
+see Documentation/devicetree/bindings/mfd/max77650.txt.
+
+The LED controller is represented as a sub-node of the PMIC node on
+the device tree.
+
+This device has three current sinks.
+
+Required properties:
+--------------------
+- compatible: Must be "maxim,max77650-led"
+- #address-cells: Must be <1>.
+- #size-cells: Must be <0>.
+
+Each LED is represented as a sub-node of the LED-controller node. Up to
+three sub-nodes can be defined.
+
+Required properties of the sub-node:
+------------------------------------
+
+- reg: Must be <0>, <1> or <2>.
+
+Optional properties of the sub-node:
+------------------------------------
+
+- label: See Documentation/devicetree/bindings/leds/common.txt
+- linux,default-trigger: See Documentation/devicetree/bindings/leds/common.txt
+
+For more details, please refer to the generic GPIO DT binding document
+<devicetree/bindings/gpio/gpio.txt>.
+
+Example:
+--------
+
+ leds {
+ compatible = "maxim,max77650-led";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@0 {
+ reg = <0>;
+ label = "blue:usr0";
+ };
+
+ led@1 {
+ reg = <1>;
+ label = "red:usr1";
+ linux,default-trigger = "heartbeat";
+ };
+
+ led@2 {
+ reg = <2>;
+ label = "green:usr2";
+ };
+ };
--
2.21.0
^ permalink raw reply related [flat|nested] 23+ messages in thread
* [PATCH v8 04/11] dt-bindings: input: add DT bindings for max77650
2019-04-03 9:00 [PATCH v8 00/11] mfd: add support for max77650 PMIC Bartosz Golaszewski
` (2 preceding siblings ...)
2019-04-03 9:01 ` [PATCH v8 03/11] dt-bindings: leds: " Bartosz Golaszewski
@ 2019-04-03 9:01 ` Bartosz Golaszewski
2019-04-03 9:01 ` [PATCH v8 05/11] mfd: core: document mfd_add_devices() Bartosz Golaszewski
` (6 subsequent siblings)
10 siblings, 0 replies; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-03 9:01 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Lee Jones, Sebastian Reichel,
Liam Girdwood, Greg Kroah-Hartman
Cc: linux-kernel, linux-gpio, devicetree, linux-input, linux-leds,
linux-pm, Bartosz Golaszewski, Rob Herring
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Add the DT binding document for the onkey module of max77650.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
.../bindings/input/max77650-onkey.txt | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/max77650-onkey.txt
diff --git a/Documentation/devicetree/bindings/input/max77650-onkey.txt b/Documentation/devicetree/bindings/input/max77650-onkey.txt
new file mode 100644
index 000000000000..477dc74f452a
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/max77650-onkey.txt
@@ -0,0 +1,26 @@
+Onkey driver for MAX77650 PMIC from Maxim Integrated.
+
+This module is part of the MAX77650 MFD device. For more details
+see Documentation/devicetree/bindings/mfd/max77650.txt.
+
+The onkey controller is represented as a sub-node of the PMIC node on
+the device tree.
+
+Required properties:
+--------------------
+- compatible: Must be "maxim,max77650-onkey".
+
+Optional properties:
+- linux,code: The key-code to be reported when the key is pressed.
+ Defaults to KEY_POWER.
+- maxim,onkey-slide: The system's button is a slide switch, not the default
+ push button.
+
+Example:
+--------
+
+ onkey {
+ compatible = "maxim,max77650-onkey";
+ linux,code = <KEY_END>;
+ maxim,onkey-slide;
+ };
--
2.21.0
^ permalink raw reply related [flat|nested] 23+ messages in thread
* [PATCH v8 05/11] mfd: core: document mfd_add_devices()
2019-04-03 9:00 [PATCH v8 00/11] mfd: add support for max77650 PMIC Bartosz Golaszewski
` (3 preceding siblings ...)
2019-04-03 9:01 ` [PATCH v8 04/11] dt-bindings: input: " Bartosz Golaszewski
@ 2019-04-03 9:01 ` Bartosz Golaszewski
2019-04-04 7:04 ` Lee Jones
2019-04-03 9:01 ` [PATCH v8 06/11] mfd: max77650: new core mfd driver Bartosz Golaszewski
` (5 subsequent siblings)
10 siblings, 1 reply; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-03 9:01 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Lee Jones, Sebastian Reichel,
Liam Girdwood, Greg Kroah-Hartman
Cc: linux-kernel, linux-gpio, devicetree, linux-input, linux-leds,
linux-pm, Bartosz Golaszewski
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Add a kernel doc for mfd_add_devices().
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
---
drivers/mfd/mfd-core.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 94e3f32ce935..1ade4c8cc91f 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -269,6 +269,19 @@ static int mfd_add_device(struct device *parent, int id,
return ret;
}
+/**
+ * mfd_add_devices - register child devices
+ *
+ * @parent: Pointer to parent device.
+ * @id: Can be PLATFORM_DEVID_AUTO to let the Platform API take care
+ * of device numbering, or will be added to a device's cell_id.
+ * @cells: Array of (struct mfd_cell)s describing child devices.
+ * @n_devs: Number of child devices to register.
+ * @mem_base: Parent register range resource for child devices.
+ * @irq_base: Base of the range of virtual interrupt numbers allocated for
+ * this MFD device. Unused if @domain is specified.
+ * @domain: Interrupt domain to create mappings for hardware interrupts.
+ */
int mfd_add_devices(struct device *parent, int id,
const struct mfd_cell *cells, int n_devs,
struct resource *mem_base,
--
2.21.0
^ permalink raw reply related [flat|nested] 23+ messages in thread
* [PATCH v8 06/11] mfd: max77650: new core mfd driver
2019-04-03 9:00 [PATCH v8 00/11] mfd: add support for max77650 PMIC Bartosz Golaszewski
` (4 preceding siblings ...)
2019-04-03 9:01 ` [PATCH v8 05/11] mfd: core: document mfd_add_devices() Bartosz Golaszewski
@ 2019-04-03 9:01 ` Bartosz Golaszewski
2019-04-04 7:15 ` Lee Jones
2019-04-03 9:01 ` [PATCH v8 07/11] power: supply: max77650: add support for battery charger Bartosz Golaszewski
` (4 subsequent siblings)
10 siblings, 1 reply; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-03 9:01 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Lee Jones, Sebastian Reichel,
Liam Girdwood, Greg Kroah-Hartman
Cc: linux-kernel, linux-gpio, devicetree, linux-input, linux-leds,
linux-pm, Bartosz Golaszewski
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Add the core mfd driver for max77650 PMIC. We define five sub-devices
for which the drivers will be added in subsequent patches.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
drivers/mfd/Kconfig | 14 +++
drivers/mfd/Makefile | 1 +
drivers/mfd/max77650.c | 234 +++++++++++++++++++++++++++++++++++
include/linux/mfd/max77650.h | 59 +++++++++
4 files changed, 308 insertions(+)
create mode 100644 drivers/mfd/max77650.c
create mode 100644 include/linux/mfd/max77650.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 0ce2d8dfc5f1..ade04e124aa0 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -733,6 +733,20 @@ config MFD_MAX77620
provides common support for accessing the device; additional drivers
must be enabled in order to use the functionality of the device.
+config MFD_MAX77650
+ tristate "Maxim MAX77650/77651 PMIC Support"
+ depends on I2C
+ depends on OF || COMPILE_TEST
+ select MFD_CORE
+ select REGMAP_I2C
+ help
+ Say Y here to add support for Maxim Semiconductor MAX77650 and
+ MAX77651 Power Management ICs. This is the core multifunction
+ driver for interacting with the device. The module name is
+ 'max77650'. Additional drivers can be enabled in order to use
+ the following functionalities of the device: GPIO, regulator,
+ charger, LED, onkey.
+
config MFD_MAX77686
tristate "Maxim Semiconductor MAX77686/802 PMIC Support"
depends on I2C
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index b4569ed7f3f3..5727d099c16f 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -155,6 +155,7 @@ obj-$(CONFIG_MFD_DA9150) += da9150-core.o
obj-$(CONFIG_MFD_MAX14577) += max14577.o
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_MAX77843) += max77843.o
diff --git a/drivers/mfd/max77650.c b/drivers/mfd/max77650.c
new file mode 100644
index 000000000000..7a6c0a5cf602
--- /dev/null
+++ b/drivers/mfd/max77650.c
@@ -0,0 +1,234 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2018 BayLibre SAS
+// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+//
+// Core MFD driver for MAXIM 77650/77651 charger/power-supply.
+// Programming manual: https://pdfserv.maximintegrated.com/en/an/AN6428.pdf
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/max77650.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+
+#define MAX77650_INT_GPI_F_MSK BIT(0)
+#define MAX77650_INT_GPI_R_MSK BIT(1)
+#define MAX77650_INT_GPI_MSK \
+ (MAX77650_INT_GPI_F_MSK | MAX77650_INT_GPI_R_MSK)
+#define MAX77650_INT_nEN_F_MSK BIT(2)
+#define MAX77650_INT_nEN_R_MSK BIT(3)
+#define MAX77650_INT_TJAL1_R_MSK BIT(4)
+#define MAX77650_INT_TJAL2_R_MSK BIT(5)
+#define MAX77650_INT_DOD_R_MSK BIT(6)
+
+#define MAX77650_INT_THM_MSK BIT(0)
+#define MAX77650_INT_CHG_MSK BIT(1)
+#define MAX77650_INT_CHGIN_MSK BIT(2)
+#define MAX77650_INT_TJ_REG_MSK BIT(3)
+#define MAX77650_INT_CHGIN_CTRL_MSK BIT(4)
+#define MAX77650_INT_SYS_CTRL_MSK BIT(5)
+#define MAX77650_INT_SYS_CNFG_MSK BIT(6)
+
+#define MAX77650_INT_GLBL_OFFSET 0
+#define MAX77650_INT_CHG_OFFSET 1
+
+#define MAX77650_SBIA_LPM_MASK BIT(5)
+#define MAX77650_SBIA_LPM_DISABLED 0x00
+
+enum {
+ MAX77650_INT_GPI,
+ MAX77650_INT_nEN_F,
+ MAX77650_INT_nEN_R,
+ MAX77650_INT_TJAL1_R,
+ MAX77650_INT_TJAL2_R,
+ MAX77650_INT_DOD_R,
+ MAX77650_INT_THM,
+ MAX77650_INT_CHG,
+ MAX77650_INT_CHGIN,
+ MAX77650_INT_TJ_REG,
+ MAX77650_INT_CHGIN_CTRL,
+ MAX77650_INT_SYS_CTRL,
+ MAX77650_INT_SYS_CNFG,
+};
+
+static const struct resource max77650_charger_resources[] = {
+ DEFINE_RES_IRQ_NAMED(MAX77650_INT_CHG, "CHG"),
+ DEFINE_RES_IRQ_NAMED(MAX77650_INT_CHGIN, "CHGIN"),
+};
+
+static const struct resource max77650_gpio_resources[] = {
+ DEFINE_RES_IRQ_NAMED(MAX77650_INT_GPI, "GPI"),
+};
+
+static const struct resource max77650_onkey_resources[] = {
+ DEFINE_RES_IRQ_NAMED(MAX77650_INT_nEN_F, "nEN_F"),
+ DEFINE_RES_IRQ_NAMED(MAX77650_INT_nEN_R, "nEN_R"),
+};
+
+static const struct mfd_cell max77650_cells[] = {
+ {
+ .name = "max77650-regulator",
+ .of_compatible = "maxim,max77650-regulator",
+ },
+ {
+ .name = "max77650-charger",
+ .of_compatible = "maxim,max77650-charger",
+ .resources = max77650_charger_resources,
+ .num_resources = ARRAY_SIZE(max77650_charger_resources),
+ },
+ {
+ .name = "max77650-gpio",
+ .of_compatible = "maxim,max77650-gpio",
+ .resources = max77650_gpio_resources,
+ .num_resources = ARRAY_SIZE(max77650_gpio_resources),
+ },
+ {
+ .name = "max77650-led",
+ .of_compatible = "maxim,max77650-led",
+ },
+ {
+ .name = "max77650-onkey",
+ .of_compatible = "maxim,max77650-onkey",
+ .resources = max77650_onkey_resources,
+ .num_resources = ARRAY_SIZE(max77650_onkey_resources),
+ },
+};
+
+static const struct regmap_irq max77650_irqs[] = {
+ [MAX77650_INT_GPI] = {
+ .reg_offset = MAX77650_INT_GLBL_OFFSET,
+ .mask = MAX77650_INT_GPI_MSK,
+ .type = {
+ .type_falling_val = MAX77650_INT_GPI_F_MSK,
+ .type_rising_val = MAX77650_INT_GPI_R_MSK,
+ .types_supported = IRQ_TYPE_EDGE_BOTH,
+ },
+ },
+ REGMAP_IRQ_REG(MAX77650_INT_nEN_F,
+ MAX77650_INT_GLBL_OFFSET, MAX77650_INT_nEN_F_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_nEN_R,
+ MAX77650_INT_GLBL_OFFSET, MAX77650_INT_nEN_R_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_TJAL1_R,
+ MAX77650_INT_GLBL_OFFSET, MAX77650_INT_TJAL1_R_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_TJAL2_R,
+ MAX77650_INT_GLBL_OFFSET, MAX77650_INT_TJAL2_R_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_DOD_R,
+ MAX77650_INT_GLBL_OFFSET, MAX77650_INT_DOD_R_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_THM,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_THM_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_CHG,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_CHG_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_CHGIN,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_CHGIN_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_TJ_REG,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_TJ_REG_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_CHGIN_CTRL,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_CHGIN_CTRL_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_SYS_CTRL,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_SYS_CTRL_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_SYS_CNFG,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_SYS_CNFG_MSK),
+};
+
+static const struct regmap_irq_chip max77650_irq_chip = {
+ .name = "max77650-irq",
+ .irqs = max77650_irqs,
+ .num_irqs = ARRAY_SIZE(max77650_irqs),
+ .num_regs = 2,
+ .status_base = MAX77650_REG_INT_GLBL,
+ .mask_base = MAX77650_REG_INTM_GLBL,
+ .type_in_mask = true,
+ .type_invert = true,
+ .init_ack_masked = true,
+ .clear_on_unmask = true,
+};
+
+static const struct regmap_config max77650_regmap_config = {
+ .name = "max77650",
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int max77650_i2c_probe(struct i2c_client *i2c)
+{
+ struct regmap_irq_chip_data *irq_data;
+ struct device *dev = &i2c->dev;
+ struct irq_domain *domain;
+ struct regmap *map;
+ unsigned int val;
+ int rv;
+
+ map = devm_regmap_init_i2c(i2c, &max77650_regmap_config);
+ if (IS_ERR(map)) {
+ dev_err(dev, "unable to initialize i2c regmap\n");
+ return PTR_ERR(map);
+ }
+
+ rv = regmap_read(map, MAX77650_REG_CID, &val);
+ if (rv) {
+ dev_err(dev, "unable to read the CID from device\n");
+ return rv;
+ }
+
+ switch (MAX77650_CID_BITS(val)) {
+ case MAX77650_CID_77650A:
+ case MAX77650_CID_77650C:
+ case MAX77650_CID_77651A:
+ case MAX77650_CID_77651B:
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ /*
+ * This IC has a low-power mode which reduces the quiescent current
+ * consumption to ~5.6uA but is only suitable for systems consuming
+ * less than ~2mA. Since this is not likely the case even on
+ * linux-based wearables - keep the chip in normal power mode.
+ */
+ rv = regmap_update_bits(map,
+ MAX77650_REG_CNFG_GLBL,
+ MAX77650_SBIA_LPM_MASK,
+ MAX77650_SBIA_LPM_DISABLED);
+ if (rv) {
+ dev_err(dev, "unable to change the power mode\n");
+ return rv;
+ }
+
+ rv = devm_regmap_add_irq_chip(dev, map, i2c->irq,
+ IRQF_ONESHOT | IRQF_SHARED, 0,
+ &max77650_irq_chip, &irq_data);
+ if (rv) {
+ dev_err(dev, "unable to add the regmap irq chip\n");
+ return rv;
+ }
+
+ domain = regmap_irq_get_domain(irq_data);
+
+ return devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
+ max77650_cells, ARRAY_SIZE(max77650_cells),
+ NULL, 0, domain);
+}
+
+static const struct of_device_id max77650_of_match[] = {
+ { .compatible = "maxim,max77650" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, max77650_of_match);
+
+static struct i2c_driver max77650_i2c_driver = {
+ .driver = {
+ .name = "max77650",
+ .of_match_table = of_match_ptr(max77650_of_match),
+ },
+ .probe_new = max77650_i2c_probe,
+};
+module_i2c_driver(max77650_i2c_driver);
+
+MODULE_DESCRIPTION("MAXIM 77650/77651 multi-function core driver");
+MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/max77650.h b/include/linux/mfd/max77650.h
new file mode 100644
index 000000000000..c809e211a8cd
--- /dev/null
+++ b/include/linux/mfd/max77650.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 BayLibre SAS
+ * Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+ *
+ * Common definitions for MAXIM 77650/77651 charger/power-supply.
+ */
+
+#ifndef MAX77650_H
+#define MAX77650_H
+
+#include <linux/bits.h>
+
+#define MAX77650_REG_INT_GLBL 0x00
+#define MAX77650_REG_INT_CHG 0x01
+#define MAX77650_REG_STAT_CHG_A 0x02
+#define MAX77650_REG_STAT_CHG_B 0x03
+#define MAX77650_REG_ERCFLAG 0x04
+#define MAX77650_REG_STAT_GLBL 0x05
+#define MAX77650_REG_INTM_GLBL 0x06
+#define MAX77650_REG_INTM_CHG 0x07
+#define MAX77650_REG_CNFG_GLBL 0x10
+#define MAX77650_REG_CID 0x11
+#define MAX77650_REG_CNFG_GPIO 0x12
+#define MAX77650_REG_CNFG_CHG_A 0x18
+#define MAX77650_REG_CNFG_CHG_B 0x19
+#define MAX77650_REG_CNFG_CHG_C 0x1a
+#define MAX77650_REG_CNFG_CHG_D 0x1b
+#define MAX77650_REG_CNFG_CHG_E 0x1c
+#define MAX77650_REG_CNFG_CHG_F 0x1d
+#define MAX77650_REG_CNFG_CHG_G 0x1e
+#define MAX77650_REG_CNFG_CHG_H 0x1f
+#define MAX77650_REG_CNFG_CHG_I 0x20
+#define MAX77650_REG_CNFG_SBB_TOP 0x28
+#define MAX77650_REG_CNFG_SBB0_A 0x29
+#define MAX77650_REG_CNFG_SBB0_B 0x2a
+#define MAX77650_REG_CNFG_SBB1_A 0x2b
+#define MAX77650_REG_CNFG_SBB1_B 0x2c
+#define MAX77650_REG_CNFG_SBB2_A 0x2d
+#define MAX77650_REG_CNFG_SBB2_B 0x2e
+#define MAX77650_REG_CNFG_LDO_A 0x38
+#define MAX77650_REG_CNFG_LDO_B 0x39
+#define MAX77650_REG_CNFG_LED0_A 0x40
+#define MAX77650_REG_CNFG_LED1_A 0x41
+#define MAX77650_REG_CNFG_LED2_A 0x42
+#define MAX77650_REG_CNFG_LED0_B 0x43
+#define MAX77650_REG_CNFG_LED1_B 0x44
+#define MAX77650_REG_CNFG_LED2_B 0x45
+#define MAX77650_REG_CNFG_LED_TOP 0x46
+
+#define MAX77650_CID_MASK GENMASK(3, 0)
+#define MAX77650_CID_BITS(_reg) (_reg & MAX77650_CID_MASK)
+
+#define MAX77650_CID_77650A 0x03
+#define MAX77650_CID_77650C 0x0a
+#define MAX77650_CID_77651A 0x06
+#define MAX77650_CID_77651B 0x08
+
+#endif /* MAX77650_H */
--
2.21.0
^ permalink raw reply related [flat|nested] 23+ messages in thread
* [PATCH v8 07/11] power: supply: max77650: add support for battery charger
2019-04-03 9:00 [PATCH v8 00/11] mfd: add support for max77650 PMIC Bartosz Golaszewski
` (5 preceding siblings ...)
2019-04-03 9:01 ` [PATCH v8 06/11] mfd: max77650: new core mfd driver Bartosz Golaszewski
@ 2019-04-03 9:01 ` Bartosz Golaszewski
2019-04-03 9:01 ` [PATCH v8 08/11] gpio: max77650: add GPIO support Bartosz Golaszewski
` (3 subsequent siblings)
10 siblings, 0 replies; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-03 9:01 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Lee Jones, Sebastian Reichel,
Liam Girdwood, Greg Kroah-Hartman
Cc: linux-kernel, linux-gpio, devicetree, linux-input, linux-leds,
linux-pm, Bartosz Golaszewski
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Add basic support for the battery charger for max77650 PMIC.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
drivers/power/supply/Kconfig | 7 +
drivers/power/supply/Makefile | 1 +
drivers/power/supply/max77650-charger.c | 367 ++++++++++++++++++++++++
3 files changed, 375 insertions(+)
create mode 100644 drivers/power/supply/max77650-charger.c
diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
index e901b9879e7e..0230c96fa94d 100644
--- a/drivers/power/supply/Kconfig
+++ b/drivers/power/supply/Kconfig
@@ -499,6 +499,13 @@ config CHARGER_DETECTOR_MAX14656
Revision 1.2 and can be found e.g. in Kindle 4/5th generation
readers and certain LG devices.
+config CHARGER_MAX77650
+ tristate "Maxim MAX77650 battery charger driver"
+ depends on MFD_MAX77650
+ help
+ Say Y to enable support for the battery charger control of MAX77650
+ PMICs.
+
config CHARGER_MAX77693
tristate "Maxim MAX77693 battery charger driver"
depends on MFD_MAX77693
diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile
index b731c2a9b695..b73eb8c5c1a9 100644
--- a/drivers/power/supply/Makefile
+++ b/drivers/power/supply/Makefile
@@ -70,6 +70,7 @@ obj-$(CONFIG_CHARGER_MANAGER) += charger-manager.o
obj-$(CONFIG_CHARGER_LTC3651) += ltc3651-charger.o
obj-$(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_MAX8997) += max8997_charger.o
obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o
diff --git a/drivers/power/supply/max77650-charger.c b/drivers/power/supply/max77650-charger.c
new file mode 100644
index 000000000000..e7cca32944bd
--- /dev/null
+++ b/drivers/power/supply/max77650-charger.c
@@ -0,0 +1,367 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2018 BayLibre SAS
+// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+//
+// Battery charger driver for MAXIM 77650/77651 charger/power-supply.
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/max77650.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/regmap.h>
+
+#define MAX77650_CHARGER_ENABLED BIT(0)
+#define MAX77650_CHARGER_DISABLED 0x00
+#define MAX77650_CHARGER_CHG_EN_MASK BIT(0)
+
+#define MAX77650_CHG_DETAILS_MASK GENMASK(7, 4)
+#define MAX77650_CHG_DETAILS_BITS(_reg) \
+ (((_reg) & MAX77650_CHG_DETAILS_MASK) >> 4)
+
+/* Charger is OFF. */
+#define MAX77650_CHG_OFF 0x00
+/* Charger is in prequalification mode. */
+#define MAX77650_CHG_PREQ 0x01
+/* Charger is in fast-charge constant current mode. */
+#define MAX77650_CHG_ON_CURR 0x02
+/* Charger is in JEITA modified fast-charge constant-current mode. */
+#define MAX77650_CHG_ON_CURR_JEITA 0x03
+/* Charger is in fast-charge constant-voltage mode. */
+#define MAX77650_CHG_ON_VOLT 0x04
+/* Charger is in JEITA modified fast-charge constant-voltage mode. */
+#define MAX77650_CHG_ON_VOLT_JEITA 0x05
+/* Charger is in top-off mode. */
+#define MAX77650_CHG_ON_TOPOFF 0x06
+/* Charger is in JEITA modified top-off mode. */
+#define MAX77650_CHG_ON_TOPOFF_JEITA 0x07
+/* Charger is done. */
+#define MAX77650_CHG_DONE 0x08
+/* Charger is JEITA modified done. */
+#define MAX77650_CHG_DONE_JEITA 0x09
+/* Charger is suspended due to a prequalification timer fault. */
+#define MAX77650_CHG_SUSP_PREQ_TIM_FAULT 0x0a
+/* Charger is suspended due to a fast-charge timer fault. */
+#define MAX77650_CHG_SUSP_FAST_CHG_TIM_FAULT 0x0b
+/* Charger is suspended due to a battery temperature fault. */
+#define MAX77650_CHG_SUSP_BATT_TEMP_FAULT 0x0c
+
+#define MAX77650_CHGIN_DETAILS_MASK GENMASK(3, 2)
+#define MAX77650_CHGIN_DETAILS_BITS(_reg) \
+ (((_reg) & MAX77650_CHGIN_DETAILS_MASK) >> 2)
+
+#define MAX77650_CHGIN_UNDERVOLTAGE_LOCKOUT 0x00
+#define MAX77650_CHGIN_OVERVOLTAGE_LOCKOUT 0x01
+#define MAX77650_CHGIN_OKAY 0x11
+
+#define MAX77650_CHARGER_CHG_MASK BIT(1)
+#define MAX77650_CHARGER_CHG_CHARGING(_reg) \
+ (((_reg) & MAX77650_CHARGER_CHG_MASK) > 1)
+
+#define MAX77650_CHARGER_VCHGIN_MIN_MASK 0xc0
+#define MAX77650_CHARGER_VCHGIN_MIN_SHIFT(_val) ((_val) << 5)
+
+#define MAX77650_CHARGER_ICHGIN_LIM_MASK 0x1c
+#define MAX77650_CHARGER_ICHGIN_LIM_SHIFT(_val) ((_val) << 2)
+
+struct max77650_charger_data {
+ struct regmap *map;
+ struct device *dev;
+};
+
+static enum power_supply_property max77650_charger_properties[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_CHARGE_TYPE
+};
+
+static const unsigned int max77650_charger_vchgin_min_table[] = {
+ 4000000, 4100000, 4200000, 4300000, 4400000, 4500000, 4600000, 4700000
+};
+
+static const unsigned int max77650_charger_ichgin_lim_table[] = {
+ 95000, 190000, 285000, 380000, 475000
+};
+
+static int max77650_charger_set_vchgin_min(struct max77650_charger_data *chg,
+ unsigned int val)
+{
+ int i, rv;
+
+ for (i = 0; i < ARRAY_SIZE(max77650_charger_vchgin_min_table); i++) {
+ if (val == max77650_charger_vchgin_min_table[i]) {
+ rv = regmap_update_bits(chg->map,
+ MAX77650_REG_CNFG_CHG_B,
+ MAX77650_CHARGER_VCHGIN_MIN_MASK,
+ MAX77650_CHARGER_VCHGIN_MIN_SHIFT(i));
+ if (rv)
+ return rv;
+
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int max77650_charger_set_ichgin_lim(struct max77650_charger_data *chg,
+ unsigned int val)
+{
+ int i, rv;
+
+ for (i = 0; i < ARRAY_SIZE(max77650_charger_ichgin_lim_table); i++) {
+ if (val == max77650_charger_ichgin_lim_table[i]) {
+ rv = regmap_update_bits(chg->map,
+ MAX77650_REG_CNFG_CHG_B,
+ MAX77650_CHARGER_ICHGIN_LIM_MASK,
+ MAX77650_CHARGER_ICHGIN_LIM_SHIFT(i));
+ if (rv)
+ return rv;
+
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int max77650_charger_enable(struct max77650_charger_data *chg)
+{
+ int rv;
+
+ rv = regmap_update_bits(chg->map,
+ MAX77650_REG_CNFG_CHG_B,
+ MAX77650_CHARGER_CHG_EN_MASK,
+ MAX77650_CHARGER_ENABLED);
+ if (rv)
+ dev_err(chg->dev, "unable to enable the charger: %d\n", rv);
+
+ return rv;
+}
+
+static int max77650_charger_disable(struct max77650_charger_data *chg)
+{
+ int rv;
+
+ rv = regmap_update_bits(chg->map,
+ MAX77650_REG_CNFG_CHG_B,
+ MAX77650_CHARGER_CHG_EN_MASK,
+ MAX77650_CHARGER_DISABLED);
+ if (rv)
+ dev_err(chg->dev, "unable to disable the charger: %d\n", rv);
+
+ return rv;
+}
+
+static irqreturn_t max77650_charger_check_status(int irq, void *data)
+{
+ struct max77650_charger_data *chg = data;
+ int rv, reg;
+
+ rv = regmap_read(chg->map, MAX77650_REG_STAT_CHG_B, ®);
+ if (rv) {
+ dev_err(chg->dev,
+ "unable to read the charger status: %d\n", rv);
+ return IRQ_HANDLED;
+ }
+
+ switch (MAX77650_CHGIN_DETAILS_BITS(reg)) {
+ case MAX77650_CHGIN_UNDERVOLTAGE_LOCKOUT:
+ dev_err(chg->dev, "undervoltage lockout detected, disabling charger\n");
+ max77650_charger_disable(chg);
+ break;
+ case MAX77650_CHGIN_OVERVOLTAGE_LOCKOUT:
+ dev_err(chg->dev, "overvoltage lockout detected, disabling charger\n");
+ max77650_charger_disable(chg);
+ break;
+ case MAX77650_CHGIN_OKAY:
+ max77650_charger_enable(chg);
+ break;
+ default:
+ /* May be 0x10 - debouncing */
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int max77650_charger_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct max77650_charger_data *chg = power_supply_get_drvdata(psy);
+ int rv, reg;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ rv = regmap_read(chg->map, MAX77650_REG_STAT_CHG_B, ®);
+ if (rv)
+ return rv;
+
+ if (MAX77650_CHARGER_CHG_CHARGING(reg)) {
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ break;
+ }
+
+ switch (MAX77650_CHG_DETAILS_BITS(reg)) {
+ case MAX77650_CHG_OFF:
+ case MAX77650_CHG_SUSP_PREQ_TIM_FAULT:
+ case MAX77650_CHG_SUSP_FAST_CHG_TIM_FAULT:
+ case MAX77650_CHG_SUSP_BATT_TEMP_FAULT:
+ val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ break;
+ case MAX77650_CHG_PREQ:
+ case MAX77650_CHG_ON_CURR:
+ case MAX77650_CHG_ON_CURR_JEITA:
+ case MAX77650_CHG_ON_VOLT:
+ case MAX77650_CHG_ON_VOLT_JEITA:
+ case MAX77650_CHG_ON_TOPOFF:
+ case MAX77650_CHG_ON_TOPOFF_JEITA:
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ break;
+ case MAX77650_CHG_DONE:
+ val->intval = POWER_SUPPLY_STATUS_FULL;
+ break;
+ default:
+ val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
+ }
+ break;
+ case POWER_SUPPLY_PROP_ONLINE:
+ rv = regmap_read(chg->map, MAX77650_REG_STAT_CHG_B, ®);
+ if (rv)
+ return rv;
+
+ val->intval = MAX77650_CHARGER_CHG_CHARGING(reg);
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_TYPE:
+ rv = regmap_read(chg->map, MAX77650_REG_STAT_CHG_B, ®);
+ if (rv)
+ return rv;
+
+ if (!MAX77650_CHARGER_CHG_CHARGING(reg)) {
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE;
+ break;
+ }
+
+ switch (MAX77650_CHG_DETAILS_BITS(reg)) {
+ case MAX77650_CHG_PREQ:
+ case MAX77650_CHG_ON_CURR:
+ case MAX77650_CHG_ON_CURR_JEITA:
+ case MAX77650_CHG_ON_VOLT:
+ case MAX77650_CHG_ON_VOLT_JEITA:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST;
+ break;
+ case MAX77650_CHG_ON_TOPOFF:
+ case MAX77650_CHG_ON_TOPOFF_JEITA:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
+ break;
+ default:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static const struct power_supply_desc max77650_battery_desc = {
+ .name = "max77650",
+ .type = POWER_SUPPLY_TYPE_USB,
+ .get_property = max77650_charger_get_property,
+ .properties = max77650_charger_properties,
+ .num_properties = ARRAY_SIZE(max77650_charger_properties),
+};
+
+static int max77650_charger_probe(struct platform_device *pdev)
+{
+ struct power_supply_config pscfg = {};
+ struct max77650_charger_data *chg;
+ struct power_supply *battery;
+ struct device *dev, *parent;
+ int rv, chg_irq, chgin_irq;
+ unsigned int prop;
+
+ dev = &pdev->dev;
+ parent = dev->parent;
+
+ chg = devm_kzalloc(dev, sizeof(*chg), GFP_KERNEL);
+ if (!chg)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, chg);
+
+ chg->map = dev_get_regmap(parent, NULL);
+ if (!chg->map)
+ return -ENODEV;
+
+ chg->dev = dev;
+
+ pscfg.of_node = dev->of_node;
+ pscfg.drv_data = chg;
+
+ chg_irq = platform_get_irq_byname(pdev, "CHG");
+ if (chg_irq < 0)
+ return chg_irq;
+
+ chgin_irq = platform_get_irq_byname(pdev, "CHGIN");
+ if (chgin_irq < 0)
+ return chgin_irq;
+
+ rv = devm_request_any_context_irq(dev, chg_irq,
+ max77650_charger_check_status,
+ IRQF_ONESHOT, "chg", chg);
+ if (rv < 0)
+ return rv;
+
+ rv = devm_request_any_context_irq(dev, chgin_irq,
+ max77650_charger_check_status,
+ IRQF_ONESHOT, "chgin", chg);
+ if (rv < 0)
+ return rv;
+
+ battery = devm_power_supply_register(dev,
+ &max77650_battery_desc, &pscfg);
+ if (IS_ERR(battery))
+ return PTR_ERR(battery);
+
+ rv = of_property_read_u32(dev->of_node, "min-microvolt", &prop);
+ if (rv == 0) {
+ rv = max77650_charger_set_vchgin_min(chg, prop);
+ if (rv)
+ return rv;
+ }
+
+ rv = of_property_read_u32(dev->of_node,
+ "current-limit-microamp", &prop);
+ if (rv == 0) {
+ rv = max77650_charger_set_ichgin_lim(chg, prop);
+ if (rv)
+ return rv;
+ }
+
+ return max77650_charger_enable(chg);
+}
+
+static int max77650_charger_remove(struct platform_device *pdev)
+{
+ struct max77650_charger_data *chg = platform_get_drvdata(pdev);
+
+ return max77650_charger_disable(chg);
+}
+
+static struct platform_driver max77650_charger_driver = {
+ .driver = {
+ .name = "max77650-charger",
+ },
+ .probe = max77650_charger_probe,
+ .remove = max77650_charger_remove,
+};
+module_platform_driver(max77650_charger_driver);
+
+MODULE_DESCRIPTION("MAXIM 77650/77651 charger driver");
+MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
+MODULE_LICENSE("GPL v2");
--
2.21.0
^ permalink raw reply related [flat|nested] 23+ messages in thread
* [PATCH v8 08/11] gpio: max77650: add GPIO support
2019-04-03 9:00 [PATCH v8 00/11] mfd: add support for max77650 PMIC Bartosz Golaszewski
` (6 preceding siblings ...)
2019-04-03 9:01 ` [PATCH v8 07/11] power: supply: max77650: add support for battery charger Bartosz Golaszewski
@ 2019-04-03 9:01 ` Bartosz Golaszewski
2019-04-03 9:01 ` [PATCH v8 09/11] leds: max77650: add LEDs support Bartosz Golaszewski
` (2 subsequent siblings)
10 siblings, 0 replies; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-03 9:01 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Lee Jones, Sebastian Reichel,
Liam Girdwood, Greg Kroah-Hartman
Cc: linux-kernel, linux-gpio, devicetree, linux-input, linux-leds,
linux-pm, Bartosz Golaszewski
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Add GPIO support for max77650 mfd device. This PMIC exposes a single
GPIO line.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpio/Kconfig | 7 ++
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-max77650.c | 190 +++++++++++++++++++++++++++++++++++
3 files changed, 198 insertions(+)
create mode 100644 drivers/gpio/gpio-max77650.c
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 3f50526a771f..c4f912104440 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -1112,6 +1112,13 @@ config GPIO_MAX77620
driver also provides interrupt support for each of the gpios.
Say yes here to enable the max77620 to be used as gpio controller.
+config GPIO_MAX77650
+ tristate "Maxim MAX77650/77651 GPIO support"
+ depends on MFD_MAX77650
+ help
+ GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
+ These chips have a single pin that can be configured as GPIO.
+
config GPIO_MSIC
bool "Intel MSIC mixed signal gpio support"
depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 54d55274b93a..075722d8317d 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -80,6 +80,7 @@ obj-$(CONFIG_GPIO_MAX7300) += gpio-max7300.o
obj-$(CONFIG_GPIO_MAX7301) += gpio-max7301.o
obj-$(CONFIG_GPIO_MAX732X) += gpio-max732x.o
obj-$(CONFIG_GPIO_MAX77620) += gpio-max77620.o
+obj-$(CONFIG_GPIO_MAX77650) += gpio-max77650.o
obj-$(CONFIG_GPIO_MB86S7X) += gpio-mb86s7x.o
obj-$(CONFIG_GPIO_MENZ127) += gpio-menz127.o
obj-$(CONFIG_GPIO_MERRIFIELD) += gpio-merrifield.o
diff --git a/drivers/gpio/gpio-max77650.c b/drivers/gpio/gpio-max77650.c
new file mode 100644
index 000000000000..3f03f4e8956c
--- /dev/null
+++ b/drivers/gpio/gpio-max77650.c
@@ -0,0 +1,190 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2018 BayLibre SAS
+// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+//
+// GPIO driver for MAXIM 77650/77651 charger/power-supply.
+
+#include <linux/gpio/driver.h>
+#include <linux/i2c.h>
+#include <linux/mfd/max77650.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#define MAX77650_GPIO_DIR_MASK BIT(0)
+#define MAX77650_GPIO_INVAL_MASK BIT(1)
+#define MAX77650_GPIO_DRV_MASK BIT(2)
+#define MAX77650_GPIO_OUTVAL_MASK BIT(3)
+#define MAX77650_GPIO_DEBOUNCE_MASK BIT(4)
+
+#define MAX77650_GPIO_DIR_OUT 0x00
+#define MAX77650_GPIO_DIR_IN BIT(0)
+#define MAX77650_GPIO_OUT_LOW 0x00
+#define MAX77650_GPIO_OUT_HIGH BIT(3)
+#define MAX77650_GPIO_DRV_OPEN_DRAIN 0x00
+#define MAX77650_GPIO_DRV_PUSH_PULL BIT(2)
+#define MAX77650_GPIO_DEBOUNCE BIT(4)
+
+#define MAX77650_GPIO_DIR_BITS(_reg) \
+ ((_reg) & MAX77650_GPIO_DIR_MASK)
+#define MAX77650_GPIO_INVAL_BITS(_reg) \
+ (((_reg) & MAX77650_GPIO_INVAL_MASK) >> 1)
+
+struct max77650_gpio_chip {
+ struct regmap *map;
+ struct gpio_chip gc;
+ int irq;
+};
+
+static int max77650_gpio_direction_input(struct gpio_chip *gc,
+ unsigned int offset)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+
+ return regmap_update_bits(chip->map,
+ MAX77650_REG_CNFG_GPIO,
+ MAX77650_GPIO_DIR_MASK,
+ MAX77650_GPIO_DIR_IN);
+}
+
+static int max77650_gpio_direction_output(struct gpio_chip *gc,
+ unsigned int offset, int value)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+ int mask, regval;
+
+ mask = MAX77650_GPIO_DIR_MASK | MAX77650_GPIO_OUTVAL_MASK;
+ regval = value ? MAX77650_GPIO_OUT_HIGH : MAX77650_GPIO_OUT_LOW;
+ regval |= MAX77650_GPIO_DIR_OUT;
+
+ return regmap_update_bits(chip->map,
+ MAX77650_REG_CNFG_GPIO, mask, regval);
+}
+
+static void max77650_gpio_set_value(struct gpio_chip *gc,
+ unsigned int offset, int value)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+ int rv, regval;
+
+ regval = value ? MAX77650_GPIO_OUT_HIGH : MAX77650_GPIO_OUT_LOW;
+
+ rv = regmap_update_bits(chip->map, MAX77650_REG_CNFG_GPIO,
+ MAX77650_GPIO_OUTVAL_MASK, regval);
+ if (rv)
+ dev_err(gc->parent, "cannot set GPIO value: %d\n", rv);
+}
+
+static int max77650_gpio_get_value(struct gpio_chip *gc,
+ unsigned int offset)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+ unsigned int val;
+ int rv;
+
+ rv = regmap_read(chip->map, MAX77650_REG_CNFG_GPIO, &val);
+ if (rv)
+ return rv;
+
+ return MAX77650_GPIO_INVAL_BITS(val);
+}
+
+static int max77650_gpio_get_direction(struct gpio_chip *gc,
+ unsigned int offset)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+ unsigned int val;
+ int rv;
+
+ rv = regmap_read(chip->map, MAX77650_REG_CNFG_GPIO, &val);
+ if (rv)
+ return rv;
+
+ return MAX77650_GPIO_DIR_BITS(val);
+}
+
+static int max77650_gpio_set_config(struct gpio_chip *gc,
+ unsigned int offset, unsigned long cfg)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+
+ switch (pinconf_to_config_param(cfg)) {
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+ return regmap_update_bits(chip->map,
+ MAX77650_REG_CNFG_GPIO,
+ MAX77650_GPIO_DRV_MASK,
+ MAX77650_GPIO_DRV_OPEN_DRAIN);
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
+ return regmap_update_bits(chip->map,
+ MAX77650_REG_CNFG_GPIO,
+ MAX77650_GPIO_DRV_MASK,
+ MAX77650_GPIO_DRV_PUSH_PULL);
+ case PIN_CONFIG_INPUT_DEBOUNCE:
+ return regmap_update_bits(chip->map,
+ MAX77650_REG_CNFG_GPIO,
+ MAX77650_GPIO_DEBOUNCE_MASK,
+ MAX77650_GPIO_DEBOUNCE);
+ default:
+ return -ENOTSUPP;
+ }
+}
+
+static int max77650_gpio_to_irq(struct gpio_chip *gc, unsigned int offset)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+
+ return chip->irq;
+}
+
+static int max77650_gpio_probe(struct platform_device *pdev)
+{
+ struct max77650_gpio_chip *chip;
+ struct device *dev, *parent;
+ struct i2c_client *i2c;
+
+ dev = &pdev->dev;
+ parent = dev->parent;
+ i2c = to_i2c_client(parent);
+
+ chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+
+ chip->map = dev_get_regmap(parent, NULL);
+ if (!chip->map)
+ return -ENODEV;
+
+ chip->irq = platform_get_irq_byname(pdev, "GPI");
+ if (chip->irq < 0)
+ return chip->irq;
+
+ chip->gc.base = -1;
+ chip->gc.ngpio = 1;
+ chip->gc.label = i2c->name;
+ chip->gc.parent = dev;
+ chip->gc.owner = THIS_MODULE;
+ chip->gc.can_sleep = true;
+
+ chip->gc.direction_input = max77650_gpio_direction_input;
+ chip->gc.direction_output = max77650_gpio_direction_output;
+ chip->gc.set = max77650_gpio_set_value;
+ chip->gc.get = max77650_gpio_get_value;
+ chip->gc.get_direction = max77650_gpio_get_direction;
+ chip->gc.set_config = max77650_gpio_set_config;
+ chip->gc.to_irq = max77650_gpio_to_irq;
+
+ return devm_gpiochip_add_data(dev, &chip->gc, chip);
+}
+
+static struct platform_driver max77650_gpio_driver = {
+ .driver = {
+ .name = "max77650-gpio",
+ },
+ .probe = max77650_gpio_probe,
+};
+module_platform_driver(max77650_gpio_driver);
+
+MODULE_DESCRIPTION("MAXIM 77650/77651 GPIO driver");
+MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
+MODULE_LICENSE("GPL v2");
--
2.21.0
^ permalink raw reply related [flat|nested] 23+ messages in thread
* [PATCH v8 09/11] leds: max77650: add LEDs support
2019-04-03 9:00 [PATCH v8 00/11] mfd: add support for max77650 PMIC Bartosz Golaszewski
` (7 preceding siblings ...)
2019-04-03 9:01 ` [PATCH v8 08/11] gpio: max77650: add GPIO support Bartosz Golaszewski
@ 2019-04-03 9:01 ` Bartosz Golaszewski
2019-04-04 13:22 ` Pavel Machek
2019-04-03 9:01 ` [PATCH v8 10/11] input: max77650: add onkey support Bartosz Golaszewski
2019-04-03 9:01 ` [PATCH v8 11/11] MAINTAINERS: add an entry for max77650 mfd driver Bartosz Golaszewski
10 siblings, 1 reply; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-03 9:01 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Lee Jones, Sebastian Reichel,
Liam Girdwood, Greg Kroah-Hartman
Cc: linux-kernel, linux-gpio, devicetree, linux-input, linux-leds,
linux-pm, Bartosz Golaszewski
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
This adds basic support for LEDs for the max77650 PMIC. The device has
three current sinks for driving LEDs.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
---
drivers/leds/Kconfig | 6 ++
drivers/leds/Makefile | 1 +
drivers/leds/leds-max77650.c | 147 +++++++++++++++++++++++++++++++++++
3 files changed, 154 insertions(+)
create mode 100644 drivers/leds/leds-max77650.c
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index a72f97fca57b..d8c70cc6a714 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -608,6 +608,12 @@ config LEDS_TLC591XX
This option enables support for Texas Instruments TLC59108
and TLC59116 LED controllers.
+config LEDS_MAX77650
+ tristate "LED support for Maxim MAX77650 PMIC"
+ depends on LEDS_CLASS && MFD_MAX77650
+ help
+ LEDs driver for MAX77650 family of PMICs from Maxim Integrated.
+
config LEDS_MAX77693
tristate "LED support for MAX77693 Flash"
depends on LEDS_CLASS_FLASH
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 4c1b0054f379..f48b2404dbb7 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -61,6 +61,7 @@ obj-$(CONFIG_LEDS_MC13783) += leds-mc13783.o
obj-$(CONFIG_LEDS_NS2) += leds-ns2.o
obj-$(CONFIG_LEDS_NETXBIG) += leds-netxbig.o
obj-$(CONFIG_LEDS_ASIC3) += leds-asic3.o
+obj-$(CONFIG_LEDS_MAX77650) += leds-max77650.o
obj-$(CONFIG_LEDS_MAX77693) += leds-max77693.o
obj-$(CONFIG_LEDS_MAX8997) += leds-max8997.o
obj-$(CONFIG_LEDS_LM355x) += leds-lm355x.o
diff --git a/drivers/leds/leds-max77650.c b/drivers/leds/leds-max77650.c
new file mode 100644
index 000000000000..6b74ce9cac12
--- /dev/null
+++ b/drivers/leds/leds-max77650.c
@@ -0,0 +1,147 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2018 BayLibre SAS
+// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+//
+// LED driver for MAXIM 77650/77651 charger/power-supply.
+
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/mfd/max77650.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#define MAX77650_LED_NUM_LEDS 3
+
+#define MAX77650_LED_A_BASE 0x40
+#define MAX77650_LED_B_BASE 0x43
+
+#define MAX77650_LED_BR_MASK GENMASK(4, 0)
+#define MAX77650_LED_EN_MASK GENMASK(7, 6)
+
+#define MAX77650_LED_MAX_BRIGHTNESS MAX77650_LED_BR_MASK
+
+/* Enable EN_LED_MSTR. */
+#define MAX77650_LED_TOP_DEFAULT BIT(0)
+
+#define MAX77650_LED_ENABLE GENMASK(7, 6)
+#define MAX77650_LED_DISABLE 0x00
+
+#define MAX77650_LED_A_DEFAULT MAX77650_LED_DISABLE
+/* 100% on duty */
+#define MAX77650_LED_B_DEFAULT GENMASK(3, 0)
+
+struct max77650_led {
+ struct led_classdev cdev;
+ struct regmap *map;
+ unsigned int regA;
+ unsigned int regB;
+};
+
+static struct max77650_led *max77650_to_led(struct led_classdev *cdev)
+{
+ return container_of(cdev, struct max77650_led, cdev);
+}
+
+static int max77650_led_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct max77650_led *led = max77650_to_led(cdev);
+ int val, mask;
+
+ mask = MAX77650_LED_BR_MASK | MAX77650_LED_EN_MASK;
+
+ if (brightness == LED_OFF)
+ val = MAX77650_LED_DISABLE;
+ else
+ val = MAX77650_LED_ENABLE | brightness;
+
+ return regmap_update_bits(led->map, led->regA, mask, val);
+}
+
+static int max77650_led_probe(struct platform_device *pdev)
+{
+ struct device_node *of_node, *child;
+ struct max77650_led *leds, *led;
+ struct device *parent;
+ struct device *dev;
+ struct regmap *map;
+ const char *label;
+ int rv, num_leds;
+ u32 reg;
+
+ dev = &pdev->dev;
+ parent = dev->parent;
+ of_node = dev->of_node;
+
+ if (!of_node)
+ return -ENODEV;
+
+ leds = devm_kcalloc(dev, sizeof(*leds),
+ MAX77650_LED_NUM_LEDS, GFP_KERNEL);
+ if (!leds)
+ return -ENOMEM;
+
+ map = dev_get_regmap(dev->parent, NULL);
+ if (!map)
+ return -ENODEV;
+
+ num_leds = of_get_child_count(of_node);
+ if (!num_leds || num_leds > MAX77650_LED_NUM_LEDS)
+ return -ENODEV;
+
+ for_each_child_of_node(of_node, child) {
+ rv = of_property_read_u32(child, "reg", ®);
+ if (rv || reg >= MAX77650_LED_NUM_LEDS)
+ return -EINVAL;
+
+ led = &leds[reg];
+ led->map = map;
+ led->regA = MAX77650_LED_A_BASE + reg;
+ led->regB = MAX77650_LED_B_BASE + reg;
+ led->cdev.brightness_set_blocking = max77650_led_brightness_set;
+ led->cdev.max_brightness = MAX77650_LED_MAX_BRIGHTNESS;
+
+ label = of_get_property(child, "label", NULL);
+ if (!label) {
+ led->cdev.name = "max77650::";
+ } else {
+ led->cdev.name = devm_kasprintf(dev, GFP_KERNEL,
+ "max77650:%s", label);
+ if (!led->cdev.name)
+ return -ENOMEM;
+ }
+
+ of_property_read_string(child, "linux,default-trigger",
+ &led->cdev.default_trigger);
+
+ rv = devm_of_led_classdev_register(dev, child, &led->cdev);
+ if (rv)
+ return rv;
+
+ rv = regmap_write(map, led->regA, MAX77650_LED_A_DEFAULT);
+ if (rv)
+ return rv;
+
+ rv = regmap_write(map, led->regB, MAX77650_LED_B_DEFAULT);
+ if (rv)
+ return rv;
+ }
+
+ return regmap_write(map,
+ MAX77650_REG_CNFG_LED_TOP,
+ MAX77650_LED_TOP_DEFAULT);
+}
+
+static struct platform_driver max77650_led_driver = {
+ .driver = {
+ .name = "max77650-led",
+ },
+ .probe = max77650_led_probe,
+};
+module_platform_driver(max77650_led_driver);
+
+MODULE_DESCRIPTION("MAXIM 77650/77651 LED driver");
+MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
+MODULE_LICENSE("GPL v2");
--
2.21.0
^ permalink raw reply related [flat|nested] 23+ messages in thread
* [PATCH v8 10/11] input: max77650: add onkey support
2019-04-03 9:00 [PATCH v8 00/11] mfd: add support for max77650 PMIC Bartosz Golaszewski
` (8 preceding siblings ...)
2019-04-03 9:01 ` [PATCH v8 09/11] leds: max77650: add LEDs support Bartosz Golaszewski
@ 2019-04-03 9:01 ` Bartosz Golaszewski
2019-04-03 9:01 ` [PATCH v8 11/11] MAINTAINERS: add an entry for max77650 mfd driver Bartosz Golaszewski
10 siblings, 0 replies; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-03 9:01 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Lee Jones, Sebastian Reichel,
Liam Girdwood, Greg Kroah-Hartman
Cc: linux-kernel, linux-gpio, devicetree, linux-input, linux-leds,
linux-pm, Bartosz Golaszewski
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Add support for the push- and slide-button events for max77650.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
---
drivers/input/misc/Kconfig | 9 +++
drivers/input/misc/Makefile | 1 +
drivers/input/misc/max77650-onkey.c | 121 ++++++++++++++++++++++++++++
3 files changed, 131 insertions(+)
create mode 100644 drivers/input/misc/max77650-onkey.c
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index e15ed1bb8558..85bc675eecd3 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -190,6 +190,15 @@ config INPUT_M68K_BEEP
tristate "M68k Beeper support"
depends on M68K
+config INPUT_MAX77650_ONKEY
+ tristate "Maxim MAX77650 ONKEY support"
+ depends on MFD_MAX77650
+ help
+ Support the ONKEY of the MAX77650 PMIC as an input device.
+
+ To compile this driver as a module, choose M here: the module
+ will be called max77650-onkey.
+
config INPUT_MAX77693_HAPTIC
tristate "MAXIM MAX77693/MAX77843 haptic controller support"
depends on (MFD_MAX77693 || MFD_MAX77843) && PWM
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index b936c5b1d4ac..ffd72161c79b 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -43,6 +43,7 @@ obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
obj-$(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_MAX8925_ONKEY) += max8925_onkey.o
obj-$(CONFIG_INPUT_MAX8997_HAPTIC) += max8997_haptic.o
diff --git a/drivers/input/misc/max77650-onkey.c b/drivers/input/misc/max77650-onkey.c
new file mode 100644
index 000000000000..fbf6caab7217
--- /dev/null
+++ b/drivers/input/misc/max77650-onkey.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2018 BayLibre SAS
+// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+//
+// ONKEY driver for MAXIM 77650/77651 charger/power-supply.
+
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/max77650.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#define MAX77650_ONKEY_MODE_MASK BIT(3)
+#define MAX77650_ONKEY_MODE_PUSH 0x00
+#define MAX77650_ONKEY_MODE_SLIDE BIT(3)
+
+struct max77650_onkey {
+ struct input_dev *input;
+ unsigned int code;
+};
+
+static irqreturn_t max77650_onkey_falling(int irq, void *data)
+{
+ struct max77650_onkey *onkey = data;
+
+ input_report_key(onkey->input, onkey->code, 0);
+ input_sync(onkey->input);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t max77650_onkey_rising(int irq, void *data)
+{
+ struct max77650_onkey *onkey = data;
+
+ input_report_key(onkey->input, onkey->code, 1);
+ input_sync(onkey->input);
+
+ return IRQ_HANDLED;
+}
+
+static int max77650_onkey_probe(struct platform_device *pdev)
+{
+ int irq_r, irq_f, error, mode;
+ struct max77650_onkey *onkey;
+ struct device *dev, *parent;
+ struct regmap *map;
+ unsigned int type;
+
+ dev = &pdev->dev;
+ parent = dev->parent;
+
+ map = dev_get_regmap(parent, NULL);
+ if (!map)
+ return -ENODEV;
+
+ onkey = devm_kzalloc(dev, sizeof(*onkey), GFP_KERNEL);
+ if (!onkey)
+ return -ENOMEM;
+
+ error = device_property_read_u32(dev, "linux,code", &onkey->code);
+ if (error)
+ onkey->code = KEY_POWER;
+
+ if (device_property_read_bool(dev, "maxim,onkey-slide")) {
+ mode = MAX77650_ONKEY_MODE_SLIDE;
+ type = EV_SW;
+ } else {
+ mode = MAX77650_ONKEY_MODE_PUSH;
+ type = EV_KEY;
+ }
+
+ error = regmap_update_bits(map, MAX77650_REG_CNFG_GLBL,
+ MAX77650_ONKEY_MODE_MASK, mode);
+ if (error)
+ return error;
+
+ irq_f = platform_get_irq_byname(pdev, "nEN_F");
+ if (irq_f < 0)
+ return irq_f;
+
+ irq_r = platform_get_irq_byname(pdev, "nEN_R");
+ if (irq_r < 0)
+ return irq_r;
+
+ onkey->input = devm_input_allocate_device(dev);
+ if (!onkey->input)
+ return -ENOMEM;
+
+ onkey->input->name = "max77650_onkey";
+ onkey->input->phys = "max77650_onkey/input0";
+ onkey->input->id.bustype = BUS_I2C;
+ input_set_capability(onkey->input, type, onkey->code);
+
+ error = devm_request_any_context_irq(dev, irq_f, max77650_onkey_falling,
+ IRQF_ONESHOT, "onkey-down", onkey);
+ if (error < 0)
+ return error;
+
+ error = devm_request_any_context_irq(dev, irq_r, max77650_onkey_rising,
+ IRQF_ONESHOT, "onkey-up", onkey);
+ if (error < 0)
+ return error;
+
+ return input_register_device(onkey->input);
+}
+
+static struct platform_driver max77650_onkey_driver = {
+ .driver = {
+ .name = "max77650-onkey",
+ },
+ .probe = max77650_onkey_probe,
+};
+module_platform_driver(max77650_onkey_driver);
+
+MODULE_DESCRIPTION("MAXIM 77650/77651 ONKEY driver");
+MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
+MODULE_LICENSE("GPL v2");
--
2.21.0
^ permalink raw reply related [flat|nested] 23+ messages in thread
* [PATCH v8 11/11] MAINTAINERS: add an entry for max77650 mfd driver
2019-04-03 9:00 [PATCH v8 00/11] mfd: add support for max77650 PMIC Bartosz Golaszewski
` (9 preceding siblings ...)
2019-04-03 9:01 ` [PATCH v8 10/11] input: max77650: add onkey support Bartosz Golaszewski
@ 2019-04-03 9:01 ` Bartosz Golaszewski
10 siblings, 0 replies; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-03 9:01 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Lee Jones, Sebastian Reichel,
Liam Girdwood, Greg Kroah-Hartman
Cc: linux-kernel, linux-gpio, devicetree, linux-input, linux-leds,
linux-pm, Bartosz Golaszewski
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
I plan on extending this set of drivers so add myself as maintainer.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
MAINTAINERS | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 43b36dbed48e..d8bdaeb72b95 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9406,6 +9406,20 @@ S: Maintained
F: Documentation/devicetree/bindings/sound/max9860.txt
F: sound/soc/codecs/max9860.*
+MAXIM MAX77650 PMIC MFD DRIVER
+M: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/*/*max77650.txt
+F: Documentation/devicetree/bindings/*/max77650*.txt
+F: include/linux/mfd/max77650.h
+F: drivers/mfd/max77650.c
+F: drivers/regulator/max77650-regulator.c
+F: drivers/power/supply/max77650-charger.c
+F: drivers/input/misc/max77650-onkey.c
+F: drivers/leds/leds-max77650.c
+F: drivers/gpio/gpio-max77650.c
+
MAXIM MAX77802 PMIC REGULATOR DEVICE DRIVER
M: Javier Martinez Canillas <javier@dowhile0.org>
L: linux-kernel@vger.kernel.org
--
2.21.0
^ permalink raw reply related [flat|nested] 23+ messages in thread
* Re: [PATCH v8 05/11] mfd: core: document mfd_add_devices()
2019-04-03 9:01 ` [PATCH v8 05/11] mfd: core: document mfd_add_devices() Bartosz Golaszewski
@ 2019-04-04 7:04 ` Lee Jones
0 siblings, 0 replies; 23+ messages in thread
From: Lee Jones @ 2019-04-04 7:04 UTC (permalink / raw)
To: Bartosz Golaszewski
Cc: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Sebastian Reichel, Liam Girdwood,
Greg Kroah-Hartman, linux-kernel, linux-gpio, devicetree,
linux-input, linux-leds, linux-pm, Bartosz Golaszewski
On Wed, 03 Apr 2019, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
>
> Add a kernel doc for mfd_add_devices().
>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> Acked-by: Pavel Machek <pavel@ucw.cz>
> ---
> drivers/mfd/mfd-core.c | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
For my own reference:
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
--
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: [PATCH v8 06/11] mfd: max77650: new core mfd driver
2019-04-03 9:01 ` [PATCH v8 06/11] mfd: max77650: new core mfd driver Bartosz Golaszewski
@ 2019-04-04 7:15 ` Lee Jones
2019-04-04 7:30 ` Bartosz Golaszewski
0 siblings, 1 reply; 23+ messages in thread
From: Lee Jones @ 2019-04-04 7:15 UTC (permalink / raw)
To: Bartosz Golaszewski
Cc: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Sebastian Reichel, Liam Girdwood,
Greg Kroah-Hartman, linux-kernel, linux-gpio, devicetree,
linux-input, linux-leds, linux-pm, Bartosz Golaszewski
On Wed, 03 Apr 2019, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
>
> Add the core mfd driver for max77650 PMIC. We define five sub-devices
> for which the drivers will be added in subsequent patches.
>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> ---
> drivers/mfd/Kconfig | 14 +++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/max77650.c | 234 +++++++++++++++++++++++++++++++++++
> include/linux/mfd/max77650.h | 59 +++++++++
> 4 files changed, 308 insertions(+)
> create mode 100644 drivers/mfd/max77650.c
> create mode 100644 include/linux/mfd/max77650.h
>
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 0ce2d8dfc5f1..ade04e124aa0 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -733,6 +733,20 @@ config MFD_MAX77620
> provides common support for accessing the device; additional drivers
> must be enabled in order to use the functionality of the device.
>
> +config MFD_MAX77650
> + tristate "Maxim MAX77650/77651 PMIC Support"
> + depends on I2C
> + depends on OF || COMPILE_TEST
> + select MFD_CORE
> + select REGMAP_I2C
> + help
> + Say Y here to add support for Maxim Semiconductor MAX77650 and
> + MAX77651 Power Management ICs. This is the core multifunction
> + driver for interacting with the device. The module name is
> + 'max77650'. Additional drivers can be enabled in order to use
> + the following functionalities of the device: GPIO, regulator,
> + charger, LED, onkey.
> +
> config MFD_MAX77686
> tristate "Maxim Semiconductor MAX77686/802 PMIC Support"
> depends on I2C
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index b4569ed7f3f3..5727d099c16f 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -155,6 +155,7 @@ obj-$(CONFIG_MFD_DA9150) += da9150-core.o
>
> obj-$(CONFIG_MFD_MAX14577) += max14577.o
> obj-$(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_MAX77843) += max77843.o
> diff --git a/drivers/mfd/max77650.c b/drivers/mfd/max77650.c
> new file mode 100644
> index 000000000000..7a6c0a5cf602
> --- /dev/null
> +++ b/drivers/mfd/max77650.c
> @@ -0,0 +1,234 @@
> +// SPDX-License-Identifier: GPL-2.0
> +//
> +// Copyright (C) 2018 BayLibre SAS
> +// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> +//
> +// Core MFD driver for MAXIM 77650/77651 charger/power-supply.
> +// Programming manual: https://pdfserv.maximintegrated.com/en/an/AN6428.pdf
> +
> +#include <linux/i2c.h>
> +#include <linux/interrupt.h>
> +#include <linux/irq.h>
> +#include <linux/mfd/core.h>
> +#include <linux/mfd/max77650.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/regmap.h>
> +
> +#define MAX77650_INT_GPI_F_MSK BIT(0)
> +#define MAX77650_INT_GPI_R_MSK BIT(1)
> +#define MAX77650_INT_GPI_MSK \
> + (MAX77650_INT_GPI_F_MSK | MAX77650_INT_GPI_R_MSK)
> +#define MAX77650_INT_nEN_F_MSK BIT(2)
> +#define MAX77650_INT_nEN_R_MSK BIT(3)
> +#define MAX77650_INT_TJAL1_R_MSK BIT(4)
> +#define MAX77650_INT_TJAL2_R_MSK BIT(5)
> +#define MAX77650_INT_DOD_R_MSK BIT(6)
> +
> +#define MAX77650_INT_THM_MSK BIT(0)
> +#define MAX77650_INT_CHG_MSK BIT(1)
> +#define MAX77650_INT_CHGIN_MSK BIT(2)
> +#define MAX77650_INT_TJ_REG_MSK BIT(3)
> +#define MAX77650_INT_CHGIN_CTRL_MSK BIT(4)
> +#define MAX77650_INT_SYS_CTRL_MSK BIT(5)
> +#define MAX77650_INT_SYS_CNFG_MSK BIT(6)
> +
> +#define MAX77650_INT_GLBL_OFFSET 0
> +#define MAX77650_INT_CHG_OFFSET 1
> +
> +#define MAX77650_SBIA_LPM_MASK BIT(5)
> +#define MAX77650_SBIA_LPM_DISABLED 0x00
> +
> +enum {
> + MAX77650_INT_GPI,
> + MAX77650_INT_nEN_F,
> + MAX77650_INT_nEN_R,
> + MAX77650_INT_TJAL1_R,
> + MAX77650_INT_TJAL2_R,
> + MAX77650_INT_DOD_R,
> + MAX77650_INT_THM,
> + MAX77650_INT_CHG,
> + MAX77650_INT_CHGIN,
> + MAX77650_INT_TJ_REG,
> + MAX77650_INT_CHGIN_CTRL,
> + MAX77650_INT_SYS_CTRL,
> + MAX77650_INT_SYS_CNFG,
> +};
> +
> +static const struct resource max77650_charger_resources[] = {
> + DEFINE_RES_IRQ_NAMED(MAX77650_INT_CHG, "CHG"),
> + DEFINE_RES_IRQ_NAMED(MAX77650_INT_CHGIN, "CHGIN"),
> +};
> +
> +static const struct resource max77650_gpio_resources[] = {
> + DEFINE_RES_IRQ_NAMED(MAX77650_INT_GPI, "GPI"),
> +};
> +
> +static const struct resource max77650_onkey_resources[] = {
> + DEFINE_RES_IRQ_NAMED(MAX77650_INT_nEN_F, "nEN_F"),
> + DEFINE_RES_IRQ_NAMED(MAX77650_INT_nEN_R, "nEN_R"),
> +};
> +
> +static const struct mfd_cell max77650_cells[] = {
> + {
> + .name = "max77650-regulator",
> + .of_compatible = "maxim,max77650-regulator",
> + },
> + {
Nit: Place these all on the same line, like:
}, {
> + .name = "max77650-charger",
> + .of_compatible = "maxim,max77650-charger",
> + .resources = max77650_charger_resources,
> + .num_resources = ARRAY_SIZE(max77650_charger_resources),
> + },
> + {
> + .name = "max77650-gpio",
> + .of_compatible = "maxim,max77650-gpio",
> + .resources = max77650_gpio_resources,
> + .num_resources = ARRAY_SIZE(max77650_gpio_resources),
> + },
> + {
> + .name = "max77650-led",
> + .of_compatible = "maxim,max77650-led",
> + },
> + {
> + .name = "max77650-onkey",
> + .of_compatible = "maxim,max77650-onkey",
> + .resources = max77650_onkey_resources,
> + .num_resources = ARRAY_SIZE(max77650_onkey_resources),
> + },
> +};
> +
> +static const struct regmap_irq max77650_irqs[] = {
> + [MAX77650_INT_GPI] = {
> + .reg_offset = MAX77650_INT_GLBL_OFFSET,
> + .mask = MAX77650_INT_GPI_MSK,
> + .type = {
> + .type_falling_val = MAX77650_INT_GPI_F_MSK,
> + .type_rising_val = MAX77650_INT_GPI_R_MSK,
> + .types_supported = IRQ_TYPE_EDGE_BOTH,
Not really a fan of these silly double/triple tabs everywhere. I like
a straight line as much as anyone, but I'd probably remove them from
here.
> + },
> + },
> + REGMAP_IRQ_REG(MAX77650_INT_nEN_F,
> + MAX77650_INT_GLBL_OFFSET, MAX77650_INT_nEN_F_MSK),
> + REGMAP_IRQ_REG(MAX77650_INT_nEN_R,
> + MAX77650_INT_GLBL_OFFSET, MAX77650_INT_nEN_R_MSK),
> + REGMAP_IRQ_REG(MAX77650_INT_TJAL1_R,
> + MAX77650_INT_GLBL_OFFSET, MAX77650_INT_TJAL1_R_MSK),
> + REGMAP_IRQ_REG(MAX77650_INT_TJAL2_R,
> + MAX77650_INT_GLBL_OFFSET, MAX77650_INT_TJAL2_R_MSK),
> + REGMAP_IRQ_REG(MAX77650_INT_DOD_R,
> + MAX77650_INT_GLBL_OFFSET, MAX77650_INT_DOD_R_MSK),
> + REGMAP_IRQ_REG(MAX77650_INT_THM,
> + MAX77650_INT_CHG_OFFSET, MAX77650_INT_THM_MSK),
> + REGMAP_IRQ_REG(MAX77650_INT_CHG,
> + MAX77650_INT_CHG_OFFSET, MAX77650_INT_CHG_MSK),
> + REGMAP_IRQ_REG(MAX77650_INT_CHGIN,
> + MAX77650_INT_CHG_OFFSET, MAX77650_INT_CHGIN_MSK),
> + REGMAP_IRQ_REG(MAX77650_INT_TJ_REG,
> + MAX77650_INT_CHG_OFFSET, MAX77650_INT_TJ_REG_MSK),
> + REGMAP_IRQ_REG(MAX77650_INT_CHGIN_CTRL,
> + MAX77650_INT_CHG_OFFSET, MAX77650_INT_CHGIN_CTRL_MSK),
> + REGMAP_IRQ_REG(MAX77650_INT_SYS_CTRL,
> + MAX77650_INT_CHG_OFFSET, MAX77650_INT_SYS_CTRL_MSK),
> + REGMAP_IRQ_REG(MAX77650_INT_SYS_CNFG,
> + MAX77650_INT_CHG_OFFSET, MAX77650_INT_SYS_CNFG_MSK),
> +};
> +
> +static const struct regmap_irq_chip max77650_irq_chip = {
> + .name = "max77650-irq",
> + .irqs = max77650_irqs,
> + .num_irqs = ARRAY_SIZE(max77650_irqs),
> + .num_regs = 2,
> + .status_base = MAX77650_REG_INT_GLBL,
> + .mask_base = MAX77650_REG_INTM_GLBL,
> + .type_in_mask = true,
> + .type_invert = true,
> + .init_ack_masked = true,
> + .clear_on_unmask = true,
> +};
> +
> +static const struct regmap_config max77650_regmap_config = {
> + .name = "max77650",
> + .reg_bits = 8,
> + .val_bits = 8,
> +};
> +
> +static int max77650_i2c_probe(struct i2c_client *i2c)
> +{
> + struct regmap_irq_chip_data *irq_data;
> + struct device *dev = &i2c->dev;
> + struct irq_domain *domain;
> + struct regmap *map;
> + unsigned int val;
> + int rv;
> +
> + map = devm_regmap_init_i2c(i2c, &max77650_regmap_config);
> + if (IS_ERR(map)) {
> + dev_err(dev, "unable to initialize i2c regmap\n");
"Unable to initialise I2C Regmap"
> + return PTR_ERR(map);
> + }
> +
> + rv = regmap_read(map, MAX77650_REG_CID, &val);
> + if (rv) {
> + dev_err(dev, "unable to read the CID from device\n");
"Unable to read Chip ID"
> + return rv;
> + }
> +
> + switch (MAX77650_CID_BITS(val)) {
> + case MAX77650_CID_77650A:
> + case MAX77650_CID_77650C:
> + case MAX77650_CID_77651A:
> + case MAX77650_CID_77651B:
> + break;
> + default:
So you're exiting silently here. What is the user going to think?
"Chip not supported - ID: %d"
> + return -ENODEV;
> + }
> +
> + /*
> + * This IC has a low-power mode which reduces the quiescent current
> + * consumption to ~5.6uA but is only suitable for systems consuming
> + * less than ~2mA. Since this is not likely the case even on
> + * linux-based wearables - keep the chip in normal power mode.
> + */
> + rv = regmap_update_bits(map,
> + MAX77650_REG_CNFG_GLBL,
> + MAX77650_SBIA_LPM_MASK,
> + MAX77650_SBIA_LPM_DISABLED);
> + if (rv) {
> + dev_err(dev, "unable to change the power mode\n");
"Unable ..."
> + return rv;
> + }
> +
> + rv = devm_regmap_add_irq_chip(dev, map, i2c->irq,
> + IRQF_ONESHOT | IRQF_SHARED, 0,
> + &max77650_irq_chip, &irq_data);
> + if (rv) {
> + dev_err(dev, "unable to add the regmap irq chip\n");
"Unable to add Regmap IRQ chip"
> + return rv;
> + }
> +
> + domain = regmap_irq_get_domain(irq_data);
No error checking?
> + return devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
> + max77650_cells, ARRAY_SIZE(max77650_cells),
> + NULL, 0, domain);
> +}
> +
> +static const struct of_device_id max77650_of_match[] = {
> + { .compatible = "maxim,max77650" },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, max77650_of_match);
> +
> +static struct i2c_driver max77650_i2c_driver = {
> + .driver = {
> + .name = "max77650",
> + .of_match_table = of_match_ptr(max77650_of_match),
> + },
> + .probe_new = max77650_i2c_probe,
I wrote this years ago. Hasn't it gone away yet?
> +};
> +module_i2c_driver(max77650_i2c_driver);
> +
> +MODULE_DESCRIPTION("MAXIM 77650/77651 multi-function core driver");
> +MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/mfd/max77650.h b/include/linux/mfd/max77650.h
> new file mode 100644
> index 000000000000..c809e211a8cd
> --- /dev/null
> +++ b/include/linux/mfd/max77650.h
> @@ -0,0 +1,59 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (C) 2018 BayLibre SAS
> + * Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> + *
> + * Common definitions for MAXIM 77650/77651 charger/power-supply.
> + */
> +
> +#ifndef MAX77650_H
> +#define MAX77650_H
> +
> +#include <linux/bits.h>
> +
> +#define MAX77650_REG_INT_GLBL 0x00
> +#define MAX77650_REG_INT_CHG 0x01
> +#define MAX77650_REG_STAT_CHG_A 0x02
> +#define MAX77650_REG_STAT_CHG_B 0x03
> +#define MAX77650_REG_ERCFLAG 0x04
> +#define MAX77650_REG_STAT_GLBL 0x05
> +#define MAX77650_REG_INTM_GLBL 0x06
> +#define MAX77650_REG_INTM_CHG 0x07
> +#define MAX77650_REG_CNFG_GLBL 0x10
> +#define MAX77650_REG_CID 0x11
> +#define MAX77650_REG_CNFG_GPIO 0x12
> +#define MAX77650_REG_CNFG_CHG_A 0x18
> +#define MAX77650_REG_CNFG_CHG_B 0x19
> +#define MAX77650_REG_CNFG_CHG_C 0x1a
> +#define MAX77650_REG_CNFG_CHG_D 0x1b
> +#define MAX77650_REG_CNFG_CHG_E 0x1c
> +#define MAX77650_REG_CNFG_CHG_F 0x1d
> +#define MAX77650_REG_CNFG_CHG_G 0x1e
> +#define MAX77650_REG_CNFG_CHG_H 0x1f
> +#define MAX77650_REG_CNFG_CHG_I 0x20
> +#define MAX77650_REG_CNFG_SBB_TOP 0x28
> +#define MAX77650_REG_CNFG_SBB0_A 0x29
> +#define MAX77650_REG_CNFG_SBB0_B 0x2a
> +#define MAX77650_REG_CNFG_SBB1_A 0x2b
> +#define MAX77650_REG_CNFG_SBB1_B 0x2c
> +#define MAX77650_REG_CNFG_SBB2_A 0x2d
> +#define MAX77650_REG_CNFG_SBB2_B 0x2e
> +#define MAX77650_REG_CNFG_LDO_A 0x38
> +#define MAX77650_REG_CNFG_LDO_B 0x39
> +#define MAX77650_REG_CNFG_LED0_A 0x40
> +#define MAX77650_REG_CNFG_LED1_A 0x41
> +#define MAX77650_REG_CNFG_LED2_A 0x42
> +#define MAX77650_REG_CNFG_LED0_B 0x43
> +#define MAX77650_REG_CNFG_LED1_B 0x44
> +#define MAX77650_REG_CNFG_LED2_B 0x45
> +#define MAX77650_REG_CNFG_LED_TOP 0x46
> +
> +#define MAX77650_CID_MASK GENMASK(3, 0)
> +#define MAX77650_CID_BITS(_reg) (_reg & MAX77650_CID_MASK)
> +
> +#define MAX77650_CID_77650A 0x03
> +#define MAX77650_CID_77650C 0x0a
> +#define MAX77650_CID_77651A 0x06
> +#define MAX77650_CID_77651B 0x08
> +
> +#endif /* MAX77650_H */
--
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: [PATCH v8 06/11] mfd: max77650: new core mfd driver
2019-04-04 7:15 ` Lee Jones
@ 2019-04-04 7:30 ` Bartosz Golaszewski
0 siblings, 0 replies; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-04 7:30 UTC (permalink / raw)
To: Lee Jones
Cc: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Pavel Machek, Sebastian Reichel, Liam Girdwood,
Greg Kroah-Hartman, Linux Kernel Mailing List,
open list:GPIO SUBSYSTEM, devicetree, Linux Input,
Linux LED Subsystem, Linux PM list, Bartosz Golaszewski
czw., 4 kwi 2019 o 09:15 Lee Jones <lee.jones@linaro.org> napisał(a):
>
> On Wed, 03 Apr 2019, Bartosz Golaszewski wrote:
>
> > From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> >
> > Add the core mfd driver for max77650 PMIC. We define five sub-devices
> > for which the drivers will be added in subsequent patches.
> >
> > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > ---
> > drivers/mfd/Kconfig | 14 +++
> > drivers/mfd/Makefile | 1 +
> > drivers/mfd/max77650.c | 234 +++++++++++++++++++++++++++++++++++
> > include/linux/mfd/max77650.h | 59 +++++++++
> > 4 files changed, 308 insertions(+)
> > create mode 100644 drivers/mfd/max77650.c
> > create mode 100644 include/linux/mfd/max77650.h
> >
> > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> > index 0ce2d8dfc5f1..ade04e124aa0 100644
> > --- a/drivers/mfd/Kconfig
> > +++ b/drivers/mfd/Kconfig
> > @@ -733,6 +733,20 @@ config MFD_MAX77620
> > provides common support for accessing the device; additional drivers
> > must be enabled in order to use the functionality of the device.
> >
> > +config MFD_MAX77650
> > + tristate "Maxim MAX77650/77651 PMIC Support"
> > + depends on I2C
> > + depends on OF || COMPILE_TEST
> > + select MFD_CORE
> > + select REGMAP_I2C
> > + help
> > + Say Y here to add support for Maxim Semiconductor MAX77650 and
> > + MAX77651 Power Management ICs. This is the core multifunction
> > + driver for interacting with the device. The module name is
> > + 'max77650'. Additional drivers can be enabled in order to use
> > + the following functionalities of the device: GPIO, regulator,
> > + charger, LED, onkey.
> > +
> > config MFD_MAX77686
> > tristate "Maxim Semiconductor MAX77686/802 PMIC Support"
> > depends on I2C
> > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> > index b4569ed7f3f3..5727d099c16f 100644
> > --- a/drivers/mfd/Makefile
> > +++ b/drivers/mfd/Makefile
> > @@ -155,6 +155,7 @@ obj-$(CONFIG_MFD_DA9150) += da9150-core.o
> >
> > obj-$(CONFIG_MFD_MAX14577) += max14577.o
> > 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_MAX77843) += max77843.o
> > diff --git a/drivers/mfd/max77650.c b/drivers/mfd/max77650.c
> > new file mode 100644
> > index 000000000000..7a6c0a5cf602
> > --- /dev/null
> > +++ b/drivers/mfd/max77650.c
> > @@ -0,0 +1,234 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +//
> > +// Copyright (C) 2018 BayLibre SAS
> > +// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > +//
> > +// Core MFD driver for MAXIM 77650/77651 charger/power-supply.
> > +// Programming manual: https://pdfserv.maximintegrated.com/en/an/AN6428.pdf
> > +
> > +#include <linux/i2c.h>
> > +#include <linux/interrupt.h>
> > +#include <linux/irq.h>
> > +#include <linux/mfd/core.h>
> > +#include <linux/mfd/max77650.h>
> > +#include <linux/module.h>
> > +#include <linux/of.h>
> > +#include <linux/regmap.h>
> > +
> > +#define MAX77650_INT_GPI_F_MSK BIT(0)
> > +#define MAX77650_INT_GPI_R_MSK BIT(1)
> > +#define MAX77650_INT_GPI_MSK \
> > + (MAX77650_INT_GPI_F_MSK | MAX77650_INT_GPI_R_MSK)
> > +#define MAX77650_INT_nEN_F_MSK BIT(2)
> > +#define MAX77650_INT_nEN_R_MSK BIT(3)
> > +#define MAX77650_INT_TJAL1_R_MSK BIT(4)
> > +#define MAX77650_INT_TJAL2_R_MSK BIT(5)
> > +#define MAX77650_INT_DOD_R_MSK BIT(6)
> > +
> > +#define MAX77650_INT_THM_MSK BIT(0)
> > +#define MAX77650_INT_CHG_MSK BIT(1)
> > +#define MAX77650_INT_CHGIN_MSK BIT(2)
> > +#define MAX77650_INT_TJ_REG_MSK BIT(3)
> > +#define MAX77650_INT_CHGIN_CTRL_MSK BIT(4)
> > +#define MAX77650_INT_SYS_CTRL_MSK BIT(5)
> > +#define MAX77650_INT_SYS_CNFG_MSK BIT(6)
> > +
> > +#define MAX77650_INT_GLBL_OFFSET 0
> > +#define MAX77650_INT_CHG_OFFSET 1
> > +
> > +#define MAX77650_SBIA_LPM_MASK BIT(5)
> > +#define MAX77650_SBIA_LPM_DISABLED 0x00
> > +
> > +enum {
> > + MAX77650_INT_GPI,
> > + MAX77650_INT_nEN_F,
> > + MAX77650_INT_nEN_R,
> > + MAX77650_INT_TJAL1_R,
> > + MAX77650_INT_TJAL2_R,
> > + MAX77650_INT_DOD_R,
> > + MAX77650_INT_THM,
> > + MAX77650_INT_CHG,
> > + MAX77650_INT_CHGIN,
> > + MAX77650_INT_TJ_REG,
> > + MAX77650_INT_CHGIN_CTRL,
> > + MAX77650_INT_SYS_CTRL,
> > + MAX77650_INT_SYS_CNFG,
> > +};
> > +
> > +static const struct resource max77650_charger_resources[] = {
> > + DEFINE_RES_IRQ_NAMED(MAX77650_INT_CHG, "CHG"),
> > + DEFINE_RES_IRQ_NAMED(MAX77650_INT_CHGIN, "CHGIN"),
> > +};
> > +
> > +static const struct resource max77650_gpio_resources[] = {
> > + DEFINE_RES_IRQ_NAMED(MAX77650_INT_GPI, "GPI"),
> > +};
> > +
> > +static const struct resource max77650_onkey_resources[] = {
> > + DEFINE_RES_IRQ_NAMED(MAX77650_INT_nEN_F, "nEN_F"),
> > + DEFINE_RES_IRQ_NAMED(MAX77650_INT_nEN_R, "nEN_R"),
> > +};
> > +
> > +static const struct mfd_cell max77650_cells[] = {
> > + {
> > + .name = "max77650-regulator",
> > + .of_compatible = "maxim,max77650-regulator",
>
> > + },
> > + {
>
> Nit: Place these all on the same line, like:
>
> }, {
>
> > + .name = "max77650-charger",
> > + .of_compatible = "maxim,max77650-charger",
> > + .resources = max77650_charger_resources,
> > + .num_resources = ARRAY_SIZE(max77650_charger_resources),
> > + },
> > + {
> > + .name = "max77650-gpio",
> > + .of_compatible = "maxim,max77650-gpio",
> > + .resources = max77650_gpio_resources,
> > + .num_resources = ARRAY_SIZE(max77650_gpio_resources),
> > + },
> > + {
> > + .name = "max77650-led",
> > + .of_compatible = "maxim,max77650-led",
> > + },
> > + {
> > + .name = "max77650-onkey",
> > + .of_compatible = "maxim,max77650-onkey",
> > + .resources = max77650_onkey_resources,
> > + .num_resources = ARRAY_SIZE(max77650_onkey_resources),
> > + },
> > +};
> > +
> > +static const struct regmap_irq max77650_irqs[] = {
> > + [MAX77650_INT_GPI] = {
> > + .reg_offset = MAX77650_INT_GLBL_OFFSET,
> > + .mask = MAX77650_INT_GPI_MSK,
> > + .type = {
> > + .type_falling_val = MAX77650_INT_GPI_F_MSK,
> > + .type_rising_val = MAX77650_INT_GPI_R_MSK,
> > + .types_supported = IRQ_TYPE_EDGE_BOTH,
>
> Not really a fan of these silly double/triple tabs everywhere. I like
> a straight line as much as anyone, but I'd probably remove them from
> here.
>
> > + },
> > + },
> > + REGMAP_IRQ_REG(MAX77650_INT_nEN_F,
> > + MAX77650_INT_GLBL_OFFSET, MAX77650_INT_nEN_F_MSK),
> > + REGMAP_IRQ_REG(MAX77650_INT_nEN_R,
> > + MAX77650_INT_GLBL_OFFSET, MAX77650_INT_nEN_R_MSK),
> > + REGMAP_IRQ_REG(MAX77650_INT_TJAL1_R,
> > + MAX77650_INT_GLBL_OFFSET, MAX77650_INT_TJAL1_R_MSK),
> > + REGMAP_IRQ_REG(MAX77650_INT_TJAL2_R,
> > + MAX77650_INT_GLBL_OFFSET, MAX77650_INT_TJAL2_R_MSK),
> > + REGMAP_IRQ_REG(MAX77650_INT_DOD_R,
> > + MAX77650_INT_GLBL_OFFSET, MAX77650_INT_DOD_R_MSK),
> > + REGMAP_IRQ_REG(MAX77650_INT_THM,
> > + MAX77650_INT_CHG_OFFSET, MAX77650_INT_THM_MSK),
> > + REGMAP_IRQ_REG(MAX77650_INT_CHG,
> > + MAX77650_INT_CHG_OFFSET, MAX77650_INT_CHG_MSK),
> > + REGMAP_IRQ_REG(MAX77650_INT_CHGIN,
> > + MAX77650_INT_CHG_OFFSET, MAX77650_INT_CHGIN_MSK),
> > + REGMAP_IRQ_REG(MAX77650_INT_TJ_REG,
> > + MAX77650_INT_CHG_OFFSET, MAX77650_INT_TJ_REG_MSK),
> > + REGMAP_IRQ_REG(MAX77650_INT_CHGIN_CTRL,
> > + MAX77650_INT_CHG_OFFSET, MAX77650_INT_CHGIN_CTRL_MSK),
> > + REGMAP_IRQ_REG(MAX77650_INT_SYS_CTRL,
> > + MAX77650_INT_CHG_OFFSET, MAX77650_INT_SYS_CTRL_MSK),
> > + REGMAP_IRQ_REG(MAX77650_INT_SYS_CNFG,
> > + MAX77650_INT_CHG_OFFSET, MAX77650_INT_SYS_CNFG_MSK),
> > +};
> > +
> > +static const struct regmap_irq_chip max77650_irq_chip = {
> > + .name = "max77650-irq",
> > + .irqs = max77650_irqs,
> > + .num_irqs = ARRAY_SIZE(max77650_irqs),
> > + .num_regs = 2,
> > + .status_base = MAX77650_REG_INT_GLBL,
> > + .mask_base = MAX77650_REG_INTM_GLBL,
> > + .type_in_mask = true,
> > + .type_invert = true,
> > + .init_ack_masked = true,
> > + .clear_on_unmask = true,
> > +};
> > +
> > +static const struct regmap_config max77650_regmap_config = {
> > + .name = "max77650",
> > + .reg_bits = 8,
> > + .val_bits = 8,
> > +};
> > +
> > +static int max77650_i2c_probe(struct i2c_client *i2c)
> > +{
> > + struct regmap_irq_chip_data *irq_data;
> > + struct device *dev = &i2c->dev;
> > + struct irq_domain *domain;
> > + struct regmap *map;
> > + unsigned int val;
> > + int rv;
> > +
> > + map = devm_regmap_init_i2c(i2c, &max77650_regmap_config);
> > + if (IS_ERR(map)) {
> > + dev_err(dev, "unable to initialize i2c regmap\n");
>
> "Unable to initialise I2C Regmap"
>
> > + return PTR_ERR(map);
> > + }
> > +
> > + rv = regmap_read(map, MAX77650_REG_CID, &val);
> > + if (rv) {
> > + dev_err(dev, "unable to read the CID from device\n");
>
> "Unable to read Chip ID"
>
> > + return rv;
> > + }
> > +
> > + switch (MAX77650_CID_BITS(val)) {
> > + case MAX77650_CID_77650A:
> > + case MAX77650_CID_77650C:
> > + case MAX77650_CID_77651A:
> > + case MAX77650_CID_77651B:
> > + break;
> > + default:
>
> So you're exiting silently here. What is the user going to think?
>
> "Chip not supported - ID: %d"
>
> > + return -ENODEV;
> > + }
> > +
> > + /*
> > + * This IC has a low-power mode which reduces the quiescent current
> > + * consumption to ~5.6uA but is only suitable for systems consuming
> > + * less than ~2mA. Since this is not likely the case even on
> > + * linux-based wearables - keep the chip in normal power mode.
> > + */
> > + rv = regmap_update_bits(map,
> > + MAX77650_REG_CNFG_GLBL,
> > + MAX77650_SBIA_LPM_MASK,
> > + MAX77650_SBIA_LPM_DISABLED);
> > + if (rv) {
> > + dev_err(dev, "unable to change the power mode\n");
>
> "Unable ..."
>
> > + return rv;
> > + }
> > +
> > + rv = devm_regmap_add_irq_chip(dev, map, i2c->irq,
> > + IRQF_ONESHOT | IRQF_SHARED, 0,
> > + &max77650_irq_chip, &irq_data);
> > + if (rv) {
> > + dev_err(dev, "unable to add the regmap irq chip\n");
>
> "Unable to add Regmap IRQ chip"
>
> > + return rv;
> > + }
> > +
> > + domain = regmap_irq_get_domain(irq_data);
>
> No error checking?
>
This can only fail is irq_data is NULL and since the previous function
succeeded we know it isn't.
Bart
> > + return devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
> > + max77650_cells, ARRAY_SIZE(max77650_cells),
> > + NULL, 0, domain);
> > +}
> > +
> > +static const struct of_device_id max77650_of_match[] = {
> > + { .compatible = "maxim,max77650" },
> > + { }
> > +};
> > +MODULE_DEVICE_TABLE(of, max77650_of_match);
> > +
> > +static struct i2c_driver max77650_i2c_driver = {
> > + .driver = {
> > + .name = "max77650",
> > + .of_match_table = of_match_ptr(max77650_of_match),
> > + },
> > + .probe_new = max77650_i2c_probe,
>
> I wrote this years ago. Hasn't it gone away yet?
>
> > +};
> > +module_i2c_driver(max77650_i2c_driver);
> > +
> > +MODULE_DESCRIPTION("MAXIM 77650/77651 multi-function core driver");
> > +MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
> > +MODULE_LICENSE("GPL v2");
> > diff --git a/include/linux/mfd/max77650.h b/include/linux/mfd/max77650.h
> > new file mode 100644
> > index 000000000000..c809e211a8cd
> > --- /dev/null
> > +++ b/include/linux/mfd/max77650.h
> > @@ -0,0 +1,59 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
> > +/*
> > + * Copyright (C) 2018 BayLibre SAS
> > + * Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > + *
> > + * Common definitions for MAXIM 77650/77651 charger/power-supply.
> > + */
> > +
> > +#ifndef MAX77650_H
> > +#define MAX77650_H
> > +
> > +#include <linux/bits.h>
> > +
> > +#define MAX77650_REG_INT_GLBL 0x00
> > +#define MAX77650_REG_INT_CHG 0x01
> > +#define MAX77650_REG_STAT_CHG_A 0x02
> > +#define MAX77650_REG_STAT_CHG_B 0x03
> > +#define MAX77650_REG_ERCFLAG 0x04
> > +#define MAX77650_REG_STAT_GLBL 0x05
> > +#define MAX77650_REG_INTM_GLBL 0x06
> > +#define MAX77650_REG_INTM_CHG 0x07
> > +#define MAX77650_REG_CNFG_GLBL 0x10
> > +#define MAX77650_REG_CID 0x11
> > +#define MAX77650_REG_CNFG_GPIO 0x12
> > +#define MAX77650_REG_CNFG_CHG_A 0x18
> > +#define MAX77650_REG_CNFG_CHG_B 0x19
> > +#define MAX77650_REG_CNFG_CHG_C 0x1a
> > +#define MAX77650_REG_CNFG_CHG_D 0x1b
> > +#define MAX77650_REG_CNFG_CHG_E 0x1c
> > +#define MAX77650_REG_CNFG_CHG_F 0x1d
> > +#define MAX77650_REG_CNFG_CHG_G 0x1e
> > +#define MAX77650_REG_CNFG_CHG_H 0x1f
> > +#define MAX77650_REG_CNFG_CHG_I 0x20
> > +#define MAX77650_REG_CNFG_SBB_TOP 0x28
> > +#define MAX77650_REG_CNFG_SBB0_A 0x29
> > +#define MAX77650_REG_CNFG_SBB0_B 0x2a
> > +#define MAX77650_REG_CNFG_SBB1_A 0x2b
> > +#define MAX77650_REG_CNFG_SBB1_B 0x2c
> > +#define MAX77650_REG_CNFG_SBB2_A 0x2d
> > +#define MAX77650_REG_CNFG_SBB2_B 0x2e
> > +#define MAX77650_REG_CNFG_LDO_A 0x38
> > +#define MAX77650_REG_CNFG_LDO_B 0x39
> > +#define MAX77650_REG_CNFG_LED0_A 0x40
> > +#define MAX77650_REG_CNFG_LED1_A 0x41
> > +#define MAX77650_REG_CNFG_LED2_A 0x42
> > +#define MAX77650_REG_CNFG_LED0_B 0x43
> > +#define MAX77650_REG_CNFG_LED1_B 0x44
> > +#define MAX77650_REG_CNFG_LED2_B 0x45
> > +#define MAX77650_REG_CNFG_LED_TOP 0x46
> > +
> > +#define MAX77650_CID_MASK GENMASK(3, 0)
> > +#define MAX77650_CID_BITS(_reg) (_reg & MAX77650_CID_MASK)
> > +
> > +#define MAX77650_CID_77650A 0x03
> > +#define MAX77650_CID_77650C 0x0a
> > +#define MAX77650_CID_77651A 0x06
> > +#define MAX77650_CID_77651B 0x08
> > +
> > +#endif /* MAX77650_H */
>
> --
> Lee Jones [李琼斯]
> Linaro Services Technical Lead
> Linaro.org │ Open source software for ARM SoCs
> Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: [PATCH v8 03/11] dt-bindings: leds: add DT bindings for max77650
2019-04-03 9:01 ` [PATCH v8 03/11] dt-bindings: leds: " Bartosz Golaszewski
@ 2019-04-04 13:22 ` Pavel Machek
0 siblings, 0 replies; 23+ messages in thread
From: Pavel Machek @ 2019-04-04 13:22 UTC (permalink / raw)
To: Bartosz Golaszewski
Cc: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Lee Jones, Sebastian Reichel, Liam Girdwood,
Greg Kroah-Hartman, linux-kernel, linux-gpio, devicetree,
linux-input, linux-leds, linux-pm, Bartosz Golaszewski,
Rob Herring
On Wed 2019-04-03 11:01:00, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
>
> Add the DT binding document for the LEDs module of max77650.
>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: [PATCH v8 09/11] leds: max77650: add LEDs support
2019-04-03 9:01 ` [PATCH v8 09/11] leds: max77650: add LEDs support Bartosz Golaszewski
@ 2019-04-04 13:22 ` Pavel Machek
0 siblings, 0 replies; 23+ messages in thread
From: Pavel Machek @ 2019-04-04 13:22 UTC (permalink / raw)
To: Bartosz Golaszewski
Cc: Rob Herring, Mark Rutland, Linus Walleij, Dmitry Torokhov,
Jacek Anaszewski, Lee Jones, Sebastian Reichel, Liam Girdwood,
Greg Kroah-Hartman, linux-kernel, linux-gpio, devicetree,
linux-input, linux-leds, linux-pm, Bartosz Golaszewski
On Wed 2019-04-03 11:01:06, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
>
> This adds basic support for LEDs for the max77650 PMIC. The device has
> three current sinks for driving LEDs.
>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: [PATCH v8 02/11] dt-bindings: power: supply: add DT bindings for max77650
2019-04-03 9:00 ` [PATCH v8 02/11] dt-bindings: power: supply: " Bartosz Golaszewski
@ 2019-04-06 7:07 ` Rob Herring
2019-04-08 12:25 ` Bartosz Golaszewski
0 siblings, 1 reply; 23+ messages in thread
From: Rob Herring @ 2019-04-06 7:07 UTC (permalink / raw)
To: Bartosz Golaszewski
Cc: Mark Rutland, Linus Walleij, Dmitry Torokhov, Jacek Anaszewski,
Pavel Machek, Lee Jones, Sebastian Reichel, Liam Girdwood,
Greg Kroah-Hartman, linux-kernel, linux-gpio, devicetree,
linux-input, linux-leds, linux-pm, Bartosz Golaszewski
On Wed, Apr 03, 2019 at 11:00:59AM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
>
> Add the DT binding document for the battery charger module of max77650.
>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> ---
> .../power/supply/max77650-charger.txt | 27 +++++++++++++++++++
> 1 file changed, 27 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/power/supply/max77650-charger.txt
>
> diff --git a/Documentation/devicetree/bindings/power/supply/max77650-charger.txt b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> new file mode 100644
> index 000000000000..fef188144386
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> @@ -0,0 +1,27 @@
> +Battery charger driver for MAX77650 PMIC from Maxim Integrated.
> +
> +This module is part of the MAX77650 MFD device. For more details
> +see Documentation/devicetree/bindings/mfd/max77650.txt.
> +
> +The charger is represented as a sub-node of the PMIC node on the device tree.
> +
> +Required properties:
> +--------------------
> +- compatible: Must be "maxim,max77650-charger"
> +
> +Optional properties:
> +--------------------
> +- min-microvolt: Minimum CHGIN regulation voltage (in microvolts). Must be
> + one of: 4000000, 4100000, 4200000, 4300000, 4400000,
> + 4500000, 4600000, 4700000.
> +- current-limit-microamp: CHGIN input current limit (in microamps). Must
> + be one of: 95000, 190000, 285000, 380000, 475000.
To repeat what I said on v6, these should be common properties IMO (and
therefore documented as such).
> +
> +Example:
> +--------
> +
> + charger {
> + compatible = "maxim,max77650-charger";
> + min-microvolt = <4200000>;
> + curr-lim-microamp = <285000>;
> + };
> --
> 2.21.0
>
^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: [PATCH v8 02/11] dt-bindings: power: supply: add DT bindings for max77650
2019-04-06 7:07 ` Rob Herring
@ 2019-04-08 12:25 ` Bartosz Golaszewski
2019-04-09 1:10 ` Rob Herring
0 siblings, 1 reply; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-08 12:25 UTC (permalink / raw)
To: Rob Herring
Cc: Mark Rutland, Linus Walleij, Dmitry Torokhov, Jacek Anaszewski,
Pavel Machek, Lee Jones, Sebastian Reichel, Liam Girdwood,
Greg Kroah-Hartman, Linux Kernel Mailing List,
open list:GPIO SUBSYSTEM, devicetree, Linux Input,
Linux LED Subsystem, Linux PM list, Bartosz Golaszewski
sob., 6 kwi 2019 o 09:07 Rob Herring <robh@kernel.org> napisał(a):
>
> On Wed, Apr 03, 2019 at 11:00:59AM +0200, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> >
> > Add the DT binding document for the battery charger module of max77650.
> >
> > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > ---
> > .../power/supply/max77650-charger.txt | 27 +++++++++++++++++++
> > 1 file changed, 27 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> >
> > diff --git a/Documentation/devicetree/bindings/power/supply/max77650-charger.txt b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > new file mode 100644
> > index 000000000000..fef188144386
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > @@ -0,0 +1,27 @@
> > +Battery charger driver for MAX77650 PMIC from Maxim Integrated.
> > +
> > +This module is part of the MAX77650 MFD device. For more details
> > +see Documentation/devicetree/bindings/mfd/max77650.txt.
> > +
> > +The charger is represented as a sub-node of the PMIC node on the device tree.
> > +
> > +Required properties:
> > +--------------------
> > +- compatible: Must be "maxim,max77650-charger"
> > +
> > +Optional properties:
> > +--------------------
> > +- min-microvolt: Minimum CHGIN regulation voltage (in microvolts). Must be
> > + one of: 4000000, 4100000, 4200000, 4300000, 4400000,
> > + 4500000, 4600000, 4700000.
> > +- current-limit-microamp: CHGIN input current limit (in microamps). Must
> > + be one of: 95000, 190000, 285000, 380000, 475000.
>
> To repeat what I said on v6, these should be common properties IMO (and
> therefore documented as such).
>
Do you mean a separate "charger.txt" document in
Documentation/devicetree/bindings/power/supply/?
Bart
> > +
> > +Example:
> > +--------
> > +
> > + charger {
> > + compatible = "maxim,max77650-charger";
> > + min-microvolt = <4200000>;
> > + curr-lim-microamp = <285000>;
> > + };
> > --
> > 2.21.0
> >
^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: [PATCH v8 02/11] dt-bindings: power: supply: add DT bindings for max77650
2019-04-08 12:25 ` Bartosz Golaszewski
@ 2019-04-09 1:10 ` Rob Herring
2019-04-09 11:04 ` Bartosz Golaszewski
0 siblings, 1 reply; 23+ messages in thread
From: Rob Herring @ 2019-04-09 1:10 UTC (permalink / raw)
To: Bartosz Golaszewski
Cc: Mark Rutland, Linus Walleij, Dmitry Torokhov, Jacek Anaszewski,
Pavel Machek, Lee Jones, Sebastian Reichel, Liam Girdwood,
Greg Kroah-Hartman, Linux Kernel Mailing List,
open list:GPIO SUBSYSTEM, devicetree, Linux Input,
Linux LED Subsystem, Linux PM list, Bartosz Golaszewski
On Mon, Apr 8, 2019 at 7:25 AM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
>
> sob., 6 kwi 2019 o 09:07 Rob Herring <robh@kernel.org> napisał(a):
> >
> > On Wed, Apr 03, 2019 at 11:00:59AM +0200, Bartosz Golaszewski wrote:
> > > From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > >
> > > Add the DT binding document for the battery charger module of max77650.
> > >
> > > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > > ---
> > > .../power/supply/max77650-charger.txt | 27 +++++++++++++++++++
> > > 1 file changed, 27 insertions(+)
> > > create mode 100644 Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > >
> > > diff --git a/Documentation/devicetree/bindings/power/supply/max77650-charger.txt b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > > new file mode 100644
> > > index 000000000000..fef188144386
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > > @@ -0,0 +1,27 @@
> > > +Battery charger driver for MAX77650 PMIC from Maxim Integrated.
> > > +
> > > +This module is part of the MAX77650 MFD device. For more details
> > > +see Documentation/devicetree/bindings/mfd/max77650.txt.
> > > +
> > > +The charger is represented as a sub-node of the PMIC node on the device tree.
> > > +
> > > +Required properties:
> > > +--------------------
> > > +- compatible: Must be "maxim,max77650-charger"
> > > +
> > > +Optional properties:
> > > +--------------------
> > > +- min-microvolt: Minimum CHGIN regulation voltage (in microvolts). Must be
> > > + one of: 4000000, 4100000, 4200000, 4300000, 4400000,
> > > + 4500000, 4600000, 4700000.
> > > +- current-limit-microamp: CHGIN input current limit (in microamps). Must
> > > + be one of: 95000, 190000, 285000, 380000, 475000.
> >
> > To repeat what I said on v6, these should be common properties IMO (and
> > therefore documented as such).
> >
>
> Do you mean a separate "charger.txt" document in
> Documentation/devicetree/bindings/power/supply/?
Yes, though I thought we had something already.
Rob
^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: [PATCH v8 02/11] dt-bindings: power: supply: add DT bindings for max77650
2019-04-09 1:10 ` Rob Herring
@ 2019-04-09 11:04 ` Bartosz Golaszewski
2019-04-09 15:38 ` Bartosz Golaszewski
0 siblings, 1 reply; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-09 11:04 UTC (permalink / raw)
To: Rob Herring
Cc: Mark Rutland, Linus Walleij, Dmitry Torokhov, Jacek Anaszewski,
Pavel Machek, Lee Jones, Sebastian Reichel, Liam Girdwood,
Greg Kroah-Hartman, Linux Kernel Mailing List,
open list:GPIO SUBSYSTEM, devicetree, Linux Input,
Linux LED Subsystem, Linux PM list, Bartosz Golaszewski
wt., 9 kwi 2019 o 03:10 Rob Herring <robh@kernel.org> napisał(a):
>
> On Mon, Apr 8, 2019 at 7:25 AM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> >
> > sob., 6 kwi 2019 o 09:07 Rob Herring <robh@kernel.org> napisał(a):
> > >
> > > On Wed, Apr 03, 2019 at 11:00:59AM +0200, Bartosz Golaszewski wrote:
> > > > From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > > >
> > > > Add the DT binding document for the battery charger module of max77650.
> > > >
> > > > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > > > ---
> > > > .../power/supply/max77650-charger.txt | 27 +++++++++++++++++++
> > > > 1 file changed, 27 insertions(+)
> > > > create mode 100644 Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > > >
> > > > diff --git a/Documentation/devicetree/bindings/power/supply/max77650-charger.txt b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > > > new file mode 100644
> > > > index 000000000000..fef188144386
> > > > --- /dev/null
> > > > +++ b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > > > @@ -0,0 +1,27 @@
> > > > +Battery charger driver for MAX77650 PMIC from Maxim Integrated.
> > > > +
> > > > +This module is part of the MAX77650 MFD device. For more details
> > > > +see Documentation/devicetree/bindings/mfd/max77650.txt.
> > > > +
> > > > +The charger is represented as a sub-node of the PMIC node on the device tree.
> > > > +
> > > > +Required properties:
> > > > +--------------------
> > > > +- compatible: Must be "maxim,max77650-charger"
> > > > +
> > > > +Optional properties:
> > > > +--------------------
> > > > +- min-microvolt: Minimum CHGIN regulation voltage (in microvolts). Must be
> > > > + one of: 4000000, 4100000, 4200000, 4300000, 4400000,
> > > > + 4500000, 4600000, 4700000.
> > > > +- current-limit-microamp: CHGIN input current limit (in microamps). Must
> > > > + be one of: 95000, 190000, 285000, 380000, 475000.
> > >
> > > To repeat what I said on v6, these should be common properties IMO (and
> > > therefore documented as such).
> > >
> >
> > Do you mean a separate "charger.txt" document in
> > Documentation/devicetree/bindings/power/supply/?
>
> Yes, though I thought we had something already.
>
> Rob
We don't AFAICT. There's only a binding document for "simple-battery"
in power supply.
Bart
^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: [PATCH v8 02/11] dt-bindings: power: supply: add DT bindings for max77650
2019-04-09 11:04 ` Bartosz Golaszewski
@ 2019-04-09 15:38 ` Bartosz Golaszewski
2019-04-11 16:50 ` Rob Herring
0 siblings, 1 reply; 23+ messages in thread
From: Bartosz Golaszewski @ 2019-04-09 15:38 UTC (permalink / raw)
To: Rob Herring
Cc: Mark Rutland, Linus Walleij, Dmitry Torokhov, Jacek Anaszewski,
Pavel Machek, Lee Jones, Sebastian Reichel, Liam Girdwood,
Greg Kroah-Hartman, Linux Kernel Mailing List,
open list:GPIO SUBSYSTEM, devicetree, Linux Input,
Linux LED Subsystem, Linux PM list, Bartosz Golaszewski
wt., 9 kwi 2019 o 13:04 Bartosz Golaszewski <brgl@bgdev.pl> napisał(a):
>
> wt., 9 kwi 2019 o 03:10 Rob Herring <robh@kernel.org> napisał(a):
> >
> > On Mon, Apr 8, 2019 at 7:25 AM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> > >
> > > sob., 6 kwi 2019 o 09:07 Rob Herring <robh@kernel.org> napisał(a):
> > > >
> > > > On Wed, Apr 03, 2019 at 11:00:59AM +0200, Bartosz Golaszewski wrote:
> > > > > From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > > > >
> > > > > Add the DT binding document for the battery charger module of max77650.
> > > > >
> > > > > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > > > > ---
> > > > > .../power/supply/max77650-charger.txt | 27 +++++++++++++++++++
> > > > > 1 file changed, 27 insertions(+)
> > > > > create mode 100644 Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > > > >
> > > > > diff --git a/Documentation/devicetree/bindings/power/supply/max77650-charger.txt b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > > > > new file mode 100644
> > > > > index 000000000000..fef188144386
> > > > > --- /dev/null
> > > > > +++ b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > > > > @@ -0,0 +1,27 @@
> > > > > +Battery charger driver for MAX77650 PMIC from Maxim Integrated.
> > > > > +
> > > > > +This module is part of the MAX77650 MFD device. For more details
> > > > > +see Documentation/devicetree/bindings/mfd/max77650.txt.
> > > > > +
> > > > > +The charger is represented as a sub-node of the PMIC node on the device tree.
> > > > > +
> > > > > +Required properties:
> > > > > +--------------------
> > > > > +- compatible: Must be "maxim,max77650-charger"
> > > > > +
> > > > > +Optional properties:
> > > > > +--------------------
> > > > > +- min-microvolt: Minimum CHGIN regulation voltage (in microvolts). Must be
> > > > > + one of: 4000000, 4100000, 4200000, 4300000, 4400000,
> > > > > + 4500000, 4600000, 4700000.
> > > > > +- current-limit-microamp: CHGIN input current limit (in microamps). Must
> > > > > + be one of: 95000, 190000, 285000, 380000, 475000.
> > > >
> > > > To repeat what I said on v6, these should be common properties IMO (and
> > > > therefore documented as such).
> > > >
> > >
> > > Do you mean a separate "charger.txt" document in
> > > Documentation/devicetree/bindings/power/supply/?
> >
> > Yes, though I thought we had something already.
> >
> > Rob
>
> We don't AFAICT. There's only a binding document for "simple-battery"
> in power supply.
>
> Bart
Can we have it locally for now but without the maxim prefix and then
reuse it if any other charger needs such functionality? To make it
even more generic we can name it: "input-voltage-min-microvolt" &
"input-current-limit-microamp".
Bart
^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: [PATCH v8 02/11] dt-bindings: power: supply: add DT bindings for max77650
2019-04-09 15:38 ` Bartosz Golaszewski
@ 2019-04-11 16:50 ` Rob Herring
0 siblings, 0 replies; 23+ messages in thread
From: Rob Herring @ 2019-04-11 16:50 UTC (permalink / raw)
To: Bartosz Golaszewski
Cc: Mark Rutland, Linus Walleij, Dmitry Torokhov, Jacek Anaszewski,
Pavel Machek, Lee Jones, Sebastian Reichel, Liam Girdwood,
Greg Kroah-Hartman, Linux Kernel Mailing List,
open list:GPIO SUBSYSTEM, devicetree, Linux Input,
Linux LED Subsystem, Linux PM list, Bartosz Golaszewski
On Tue, Apr 9, 2019 at 10:38 AM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
>
> wt., 9 kwi 2019 o 13:04 Bartosz Golaszewski <brgl@bgdev.pl> napisał(a):
> >
> > wt., 9 kwi 2019 o 03:10 Rob Herring <robh@kernel.org> napisał(a):
> > >
> > > On Mon, Apr 8, 2019 at 7:25 AM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> > > >
> > > > sob., 6 kwi 2019 o 09:07 Rob Herring <robh@kernel.org> napisał(a):
> > > > >
> > > > > On Wed, Apr 03, 2019 at 11:00:59AM +0200, Bartosz Golaszewski wrote:
> > > > > > From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > > > > >
> > > > > > Add the DT binding document for the battery charger module of max77650.
> > > > > >
> > > > > > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > > > > > ---
> > > > > > .../power/supply/max77650-charger.txt | 27 +++++++++++++++++++
> > > > > > 1 file changed, 27 insertions(+)
> > > > > > create mode 100644 Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > > > > >
> > > > > > diff --git a/Documentation/devicetree/bindings/power/supply/max77650-charger.txt b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > > > > > new file mode 100644
> > > > > > index 000000000000..fef188144386
> > > > > > --- /dev/null
> > > > > > +++ b/Documentation/devicetree/bindings/power/supply/max77650-charger.txt
> > > > > > @@ -0,0 +1,27 @@
> > > > > > +Battery charger driver for MAX77650 PMIC from Maxim Integrated.
> > > > > > +
> > > > > > +This module is part of the MAX77650 MFD device. For more details
> > > > > > +see Documentation/devicetree/bindings/mfd/max77650.txt.
> > > > > > +
> > > > > > +The charger is represented as a sub-node of the PMIC node on the device tree.
> > > > > > +
> > > > > > +Required properties:
> > > > > > +--------------------
> > > > > > +- compatible: Must be "maxim,max77650-charger"
> > > > > > +
> > > > > > +Optional properties:
> > > > > > +--------------------
> > > > > > +- min-microvolt: Minimum CHGIN regulation voltage (in microvolts). Must be
> > > > > > + one of: 4000000, 4100000, 4200000, 4300000, 4400000,
> > > > > > + 4500000, 4600000, 4700000.
> > > > > > +- current-limit-microamp: CHGIN input current limit (in microamps). Must
> > > > > > + be one of: 95000, 190000, 285000, 380000, 475000.
> > > > >
> > > > > To repeat what I said on v6, these should be common properties IMO (and
> > > > > therefore documented as such).
> > > > >
> > > >
> > > > Do you mean a separate "charger.txt" document in
> > > > Documentation/devicetree/bindings/power/supply/?
> > >
> > > Yes, though I thought we had something already.
> > >
> > > Rob
> >
> > We don't AFAICT. There's only a binding document for "simple-battery"
> > in power supply.
> >
> > Bart
>
> Can we have it locally for now but without the maxim prefix and then
> reuse it if any other charger needs such functionality? To make it
> even more generic we can name it: "input-voltage-min-microvolt" &
> "input-current-limit-microamp".
I guess. And defining these as 'input' is good because we do have
similar property names already for battery current limit and voltages.
Rob
^ permalink raw reply [flat|nested] 23+ messages in thread
end of thread, other threads:[~2019-04-11 16:50 UTC | newest]
Thread overview: 23+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-04-03 9:00 [PATCH v8 00/11] mfd: add support for max77650 PMIC Bartosz Golaszewski
2019-04-03 9:00 ` [PATCH v8 01/11] dt-bindings: mfd: add DT bindings for max77650 Bartosz Golaszewski
2019-04-03 9:00 ` [PATCH v8 02/11] dt-bindings: power: supply: " Bartosz Golaszewski
2019-04-06 7:07 ` Rob Herring
2019-04-08 12:25 ` Bartosz Golaszewski
2019-04-09 1:10 ` Rob Herring
2019-04-09 11:04 ` Bartosz Golaszewski
2019-04-09 15:38 ` Bartosz Golaszewski
2019-04-11 16:50 ` Rob Herring
2019-04-03 9:01 ` [PATCH v8 03/11] dt-bindings: leds: " Bartosz Golaszewski
2019-04-04 13:22 ` Pavel Machek
2019-04-03 9:01 ` [PATCH v8 04/11] dt-bindings: input: " Bartosz Golaszewski
2019-04-03 9:01 ` [PATCH v8 05/11] mfd: core: document mfd_add_devices() Bartosz Golaszewski
2019-04-04 7:04 ` Lee Jones
2019-04-03 9:01 ` [PATCH v8 06/11] mfd: max77650: new core mfd driver Bartosz Golaszewski
2019-04-04 7:15 ` Lee Jones
2019-04-04 7:30 ` Bartosz Golaszewski
2019-04-03 9:01 ` [PATCH v8 07/11] power: supply: max77650: add support for battery charger Bartosz Golaszewski
2019-04-03 9:01 ` [PATCH v8 08/11] gpio: max77650: add GPIO support Bartosz Golaszewski
2019-04-03 9:01 ` [PATCH v8 09/11] leds: max77650: add LEDs support Bartosz Golaszewski
2019-04-04 13:22 ` Pavel Machek
2019-04-03 9:01 ` [PATCH v8 10/11] input: max77650: add onkey support Bartosz Golaszewski
2019-04-03 9:01 ` [PATCH v8 11/11] MAINTAINERS: add an entry for max77650 mfd driver Bartosz Golaszewski
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