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LED updates for 5.2-rc1.
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Merge tag 'leds-for-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
Pull LED updates from Jacek Anaszewski:
"LED core fixes and improvements:
- avoid races with workqueue
- Kconfig: pedantic cleanup
- small fixes for Flash class description
leds-lt3593:
- remove unneeded assignment in lt3593_led_probe
- drop pdata handling code
leds-blinkm:
- clean up double assignment to data->i2c_addr
leds-pca955x, leds-pca963x:
- revert ACPI support, as it turned out that there is no evidence
of officially registered ACPI IDs for these devices.
- make use of device property API
leds-as3645a:
- switch to fwnode property API
LED related addition to ACPI documentation:
- document how to refer to LEDs from remote nodes
LED related fix to ALSA line6/toneport driver:
- avoid polluting led_* namespace
And lm3532 driver relocation from MFD to LED subsystem, accompanied by
various improvements and optimizations; it entails also a change in
omap4-droid4-xt894.dts:
- leds: lm3532: Introduce the lm3532 LED driver
- mfd: ti-lmu: Remove LM3532 backlight driver references
- ARM: dts: omap4-droid4: Update backlight dt properties
- dt: lm3532: Add lm3532 dt doc and update ti_lmu doc"
* tag 'leds-for-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
leds: avoid races with workqueue
ALSA: line6: Avoid polluting led_* namespace
leds: lm3532: Introduce the lm3532 LED driver
mfd: ti-lmu: Remove LM3532 backlight driver references
ARM: dts: omap4-droid4: Update backlight dt properties
dt: lm3532: Add lm3532 dt doc and update ti_lmu doc
leds: Small fixes for Flash class description
leds: blinkm: clean up double assignment to data->i2c_addr
leds: pca963x: Make use of device property API
leds: pca955x: Make use of device property API
leds: lt3593: Remove unneeded assignment in lt3593_led_probe
leds: lt3593: drop pdata handling code
leds: pca955x: Revert "Add ACPI support"
leds: pca963x: Revert "Add ACPI support"
drivers: leds: Kconfig: pedantic cleanups
ACPI: Document how to refer to LEDs from remote nodes
leds: as3645a: Switch to fwnode property API
This commit is contained in:
Linus Torvalds
commit
8b35ad6232
99
Documentation/acpi/dsd/leds.txt
Normal file
99
Documentation/acpi/dsd/leds.txt
Normal file
@ -0,0 +1,99 @@
|
||||
Describing and referring to LEDs in ACPI
|
||||
|
||||
Individual LEDs are described by hierarchical data extension [6] nodes under the
|
||||
device node, the LED driver chip. The "reg" property in the LED specific nodes
|
||||
tells the numerical ID of each individual LED output to which the LEDs are
|
||||
connected. [3] The hierarchical data nodes are named "led@X", where X is the
|
||||
number of the LED output.
|
||||
|
||||
Referring to LEDs in Device tree is documented in [4], in "flash-leds" property
|
||||
documentation. In short, LEDs are directly referred to by using phandles.
|
||||
|
||||
While Device tree allows referring to any node in the tree[1], in ACPI
|
||||
references are limited to device nodes only [2]. For this reason using the same
|
||||
mechanism on ACPI is not possible. A mechanism to refer to non-device ACPI nodes
|
||||
is documented in [7].
|
||||
|
||||
ACPI allows (as does DT) using integer arguments after the reference. A
|
||||
combination of the LED driver device reference and an integer argument,
|
||||
referring to the "reg" property of the relevant LED, is used to identify
|
||||
individual LEDs. The value of the "reg" property is a contract between the
|
||||
firmware and software, it uniquely identifies the LED driver outputs.
|
||||
|
||||
Under the LED driver device, The first hierarchical data extension package list
|
||||
entry shall contain the string "led@" followed by the number of the LED,
|
||||
followed by the referred object name. That object shall be named "LED" followed
|
||||
by the number of the LED.
|
||||
|
||||
An ASL example of a camera sensor device and a LED driver device for two LEDs.
|
||||
Objects not relevant for LEDs or the references to them have been omitted.
|
||||
|
||||
Device (LED)
|
||||
{
|
||||
Name (_DSD, Package () {
|
||||
ToUUID("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
|
||||
Package () {
|
||||
Package () { "led@0", LED0 },
|
||||
Package () { "led@1", LED1 },
|
||||
}
|
||||
})
|
||||
Name (LED0, Package () {
|
||||
ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
|
||||
Package () {
|
||||
Package () { "reg", 0 },
|
||||
Package () { "flash-max-microamp", 1000000 },
|
||||
Package () { "flash-timeout-us", 200000 },
|
||||
Package () { "led-max-microamp", 100000 },
|
||||
Package () { "label", "white:flash" },
|
||||
}
|
||||
})
|
||||
Name (LED1, Package () {
|
||||
ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
|
||||
Package () {
|
||||
Package () { "reg", 1 },
|
||||
Package () { "led-max-microamp", 10000 },
|
||||
Package () { "label", "red:indicator" },
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
Device (SEN)
|
||||
{
|
||||
Name (_DSD, Package () {
|
||||
ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
|
||||
Package () {
|
||||
Package () {
|
||||
"flash-leds",
|
||||
Package () { ^LED, "led@0", ^LED, "led@1" },
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
where
|
||||
|
||||
LED LED driver device
|
||||
LED0 First LED
|
||||
LED1 Second LED
|
||||
SEN Camera sensor device (or another device the LED is
|
||||
related to)
|
||||
|
||||
[1] Device tree. <URL:http://www.devicetree.org>, referenced 2019-02-21.
|
||||
|
||||
[2] Advanced Configuration and Power Interface Specification.
|
||||
<URL:https://uefi.org/sites/default/files/resources/ACPI_6_3_final_Jan30.pdf>,
|
||||
referenced 2019-02-21.
|
||||
|
||||
[3] Documentation/devicetree/bindings/leds/common.txt
|
||||
|
||||
[4] Documentation/devicetree/bindings/media/video-interfaces.txt
|
||||
|
||||
[5] Device Properties UUID For _DSD.
|
||||
<URL:http://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf>,
|
||||
referenced 2019-02-21.
|
||||
|
||||
[6] Hierarchical Data Extension UUID For _DSD.
|
||||
<URL:http://www.uefi.org/sites/default/files/resources/_DSD-hierarchical-data-extension-UUID-v1.1.pdf>,
|
||||
referenced 2019-02-21.
|
||||
|
||||
[7] Documentation/acpi/dsd/data-node-reference.txt
|
||||
101
Documentation/devicetree/bindings/leds/leds-lm3532.txt
Normal file
101
Documentation/devicetree/bindings/leds/leds-lm3532.txt
Normal file
@ -0,0 +1,101 @@
|
||||
* Texas Instruments - lm3532 White LED driver with ambient light sensing
|
||||
capability.
|
||||
|
||||
The LM3532 provides the 3 high-voltage, low-side current sinks. The device is
|
||||
programmable over an I2C-compatible interface and has independent
|
||||
current control for all three channels. The adaptive current regulation
|
||||
method allows for different LED currents in each current sink thus allowing
|
||||
for a wide variety of backlight and keypad applications.
|
||||
|
||||
The main features of the LM3532 include dual ambient light sensor inputs
|
||||
each with 32 internal voltage setting resistors, 8-bit logarithmic and linear
|
||||
brightness control, dual external PWM brightness control inputs, and up to
|
||||
1000:1 dimming ratio with programmable fade in and fade out settings.
|
||||
|
||||
Required properties:
|
||||
- compatible : "ti,lm3532"
|
||||
- reg : I2C slave address
|
||||
- #address-cells : 1
|
||||
- #size-cells : 0
|
||||
|
||||
Optional properties:
|
||||
- enable-gpios : gpio pin to enable (active high)/disable the device.
|
||||
- ramp-up-us - The Run time ramp rates/step are from one current
|
||||
set-point to another after the device has reached its
|
||||
initial target set point from turn-on
|
||||
- ramp-down-us - The Run time ramp rates/step are from one current
|
||||
set-point to another after the device has reached its
|
||||
initial target set point from turn-on
|
||||
Range for ramp settings: 8us - 65536us
|
||||
|
||||
Optional properties if ALS mode is used:
|
||||
- ti,als-vmin - Minimum ALS voltage defined in Volts
|
||||
- ti,als-vmax - Maximum ALS voltage defined in Volts
|
||||
Per the data sheet the max ALS voltage is 2V and the min is 0V
|
||||
|
||||
- ti,als1-imp-sel - ALS1 impedance resistor selection in Ohms
|
||||
- ti,als2-imp-sel - ALS2 impedance resistor selection in Ohms
|
||||
Range for impedance select: 37000 Ohms - 1190 Ohms
|
||||
Values above 37kohms will be set to the "High Impedance" setting
|
||||
|
||||
- ti,als-avrg-time-us - Determines the length of time the device needs to
|
||||
average the two ALS inputs. This is only used if
|
||||
the input mode is LM3532_ALS_INPUT_AVRG.
|
||||
Range: 17920us - 2293760us
|
||||
- ti,als-input-mode - Determines how the device uses the attached ALS
|
||||
devices.
|
||||
0x00 - ALS1 and ALS2 input average
|
||||
0x01 - ALS1 Input
|
||||
0x02 - ALS2 Input
|
||||
0x03 - Max of ALS1 and ALS2
|
||||
|
||||
Required child properties:
|
||||
- reg : Indicates control bank the LED string is controlled by
|
||||
- led-sources : see Documentation/devicetree/bindings/leds/common.txt
|
||||
- ti,led-mode : Defines if the LED strings are manually controlled or
|
||||
if the LED strings are controlled by the ALS.
|
||||
0x00 - LED strings are I2C controlled via full scale
|
||||
brightness control register
|
||||
0x01 - LED strings are ALS controlled
|
||||
|
||||
Optional LED child properties:
|
||||
- label : see Documentation/devicetree/bindings/leds/common.txt
|
||||
- linux,default-trigger :
|
||||
see Documentation/devicetree/bindings/leds/common.txt
|
||||
|
||||
Example:
|
||||
led-controller@38 {
|
||||
compatible = "ti,lm3532";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
reg = <0x38>;
|
||||
|
||||
enable-gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>;
|
||||
ramp-up-us = <1024>;
|
||||
ramp-down-us = <65536>;
|
||||
|
||||
ti,als-vmin = <0>;
|
||||
ti,als-vmax = <2000>;
|
||||
ti,als1-imp-sel = <4110>;
|
||||
ti,als2-imp-sel = <2180>;
|
||||
ti,als-avrg-time-us = <17920>;
|
||||
ti,als-input-mode = <0x00>;
|
||||
|
||||
led@0 {
|
||||
reg = <0>;
|
||||
led-sources = <2>;
|
||||
ti,led-mode = <1>;
|
||||
label = ":backlight";
|
||||
linux,default-trigger = "backlight";
|
||||
};
|
||||
|
||||
led@1 {
|
||||
reg = <1>;
|
||||
led-sources = <1>;
|
||||
ti,led-mode = <0>;
|
||||
label = ":kbd_backlight";
|
||||
};
|
||||
};
|
||||
|
||||
For more product information please see the links below:
|
||||
http://www.ti.com/product/LM3532
|
||||
@ -4,7 +4,6 @@ TI LMU driver supports lighting devices below.
|
||||
|
||||
Name Child nodes
|
||||
------ ---------------------------------
|
||||
LM3532 Backlight
|
||||
LM3631 Backlight and regulator
|
||||
LM3632 Backlight and regulator
|
||||
LM3633 Backlight, LED and fault monitor
|
||||
@ -13,7 +12,6 @@ TI LMU driver supports lighting devices below.
|
||||
|
||||
Required properties:
|
||||
- compatible: Should be one of:
|
||||
"ti,lm3532"
|
||||
"ti,lm3631"
|
||||
"ti,lm3632"
|
||||
"ti,lm3633"
|
||||
@ -23,7 +21,6 @@ Required properties:
|
||||
0x11 for LM3632
|
||||
0x29 for LM3631
|
||||
0x36 for LM3633, LM3697
|
||||
0x38 for LM3532
|
||||
0x63 for LM3695
|
||||
|
||||
Optional property:
|
||||
@ -47,23 +44,6 @@ Optional nodes:
|
||||
[2] ../leds/leds-lm3633.txt
|
||||
[3] ../regulator/lm363x-regulator.txt
|
||||
|
||||
lm3532@38 {
|
||||
compatible = "ti,lm3532";
|
||||
reg = <0x38>;
|
||||
|
||||
enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
|
||||
|
||||
backlight {
|
||||
compatible = "ti,lm3532-backlight";
|
||||
|
||||
lcd {
|
||||
led-sources = <0 1 2>;
|
||||
ramp-up-msec = <30>;
|
||||
ramp-down-msec = <0>;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
lm3631@29 {
|
||||
compatible = "ti,lm3631";
|
||||
reg = <0x29>;
|
||||
|
||||
@ -214,7 +214,6 @@
|
||||
|
||||
width-mm = <50>;
|
||||
height-mm = <89>;
|
||||
backlight = <&lcd_backlight>;
|
||||
|
||||
panel-timing {
|
||||
clock-frequency = <0>; /* Calculated by dsi */
|
||||
@ -383,20 +382,30 @@
|
||||
};
|
||||
|
||||
&i2c1 {
|
||||
lm3532@38 {
|
||||
led-controller@38 {
|
||||
compatible = "ti,lm3532";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
reg = <0x38>;
|
||||
|
||||
enable-gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>;
|
||||
|
||||
lcd_backlight: backlight {
|
||||
compatible = "ti,lm3532-backlight";
|
||||
ramp-up-us = <1024>;
|
||||
ramp-down-us = <8193>;
|
||||
|
||||
lcd {
|
||||
led-sources = <0 1 2>;
|
||||
ramp-up-msec = <1>;
|
||||
ramp-down-msec = <0>;
|
||||
led@0 {
|
||||
reg = <0>;
|
||||
led-sources = <2>;
|
||||
ti,led-mode = <0>;
|
||||
label = ":backlight";
|
||||
linux,default-trigger = "backlight";
|
||||
};
|
||||
|
||||
led@1 {
|
||||
reg = <1>;
|
||||
led-sources = <1>;
|
||||
ti,led-mode = <0>;
|
||||
label = ":kbd_backlight";
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
@ -23,8 +23,8 @@ config LEDS_CLASS_FLASH
|
||||
tristate "LED Flash Class Support"
|
||||
depends on LEDS_CLASS
|
||||
help
|
||||
This option enables the flash led sysfs class in /sys/class/leds.
|
||||
It wrapps LED Class and adds flash LEDs specific sysfs attributes
|
||||
This option enables the flash LED sysfs class in /sys/class/leds.
|
||||
It wraps LED Class and adds flash LEDs specific sysfs attributes
|
||||
and kernel internal API to it. You'll need this to provide support
|
||||
for the flash related features of a LED device. It can be built
|
||||
as a module.
|
||||
@ -138,6 +138,16 @@ config LEDS_LM3530
|
||||
controlled manually or using PWM input or using ambient
|
||||
light automatically.
|
||||
|
||||
config LEDS_LM3532
|
||||
tristate "LCD Backlight driver for LM3532"
|
||||
depends on LEDS_CLASS
|
||||
depends on I2C
|
||||
help
|
||||
This option enables support for the LCD backlight using
|
||||
LM3532 ambient light sensor chip. This ALS chip can be
|
||||
controlled manually or using PWM input or using ambient
|
||||
light automatically.
|
||||
|
||||
config LEDS_LM3533
|
||||
tristate "LED support for LM3533"
|
||||
depends on LEDS_CLASS
|
||||
@ -533,6 +543,7 @@ config LEDS_LT3593
|
||||
tristate "LED driver for LT3593 controllers"
|
||||
depends on LEDS_CLASS
|
||||
depends on GPIOLIB || COMPILE_TEST
|
||||
depends on OF
|
||||
help
|
||||
This option enables support for LEDs driven by a Linear Technology
|
||||
LT3593 controller. This controller uses a special one-wire pulse
|
||||
|
||||
@ -18,6 +18,7 @@ obj-$(CONFIG_LEDS_BD2802) += leds-bd2802.o
|
||||
obj-$(CONFIG_LEDS_CPCAP) += leds-cpcap.o
|
||||
obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o
|
||||
obj-$(CONFIG_LEDS_LM3530) += leds-lm3530.o
|
||||
obj-$(CONFIG_LEDS_LM3532) += leds-lm3532.o
|
||||
obj-$(CONFIG_LEDS_LM3533) += leds-lm3533.o
|
||||
obj-$(CONFIG_LEDS_LM3642) += leds-lm3642.o
|
||||
obj-$(CONFIG_LEDS_MIKROTIK_RB532) += leds-rb532.o
|
||||
|
||||
@ -57,6 +57,7 @@ static ssize_t brightness_store(struct device *dev,
|
||||
if (state == LED_OFF)
|
||||
led_trigger_remove(led_cdev);
|
||||
led_set_brightness(led_cdev, state);
|
||||
flush_work(&led_cdev->set_brightness_work);
|
||||
|
||||
ret = size;
|
||||
unlock:
|
||||
|
||||
@ -164,6 +164,11 @@ static void led_blink_setup(struct led_classdev *led_cdev,
|
||||
unsigned long *delay_on,
|
||||
unsigned long *delay_off)
|
||||
{
|
||||
/*
|
||||
* If "set brightness to 0" is pending in workqueue, we don't
|
||||
* want that to be reordered after blink_set()
|
||||
*/
|
||||
flush_work(&led_cdev->set_brightness_work);
|
||||
if (!test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) &&
|
||||
led_cdev->blink_set &&
|
||||
!led_cdev->blink_set(led_cdev, delay_on, delay_off))
|
||||
|
||||
@ -25,7 +25,7 @@
|
||||
#include <linux/leds.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/property.h>
|
||||
#include <linux/slab.h>
|
||||
|
||||
#include <media/v4l2-flash-led-class.h>
|
||||
@ -148,8 +148,8 @@ struct as3645a {
|
||||
struct v4l2_flash *vf;
|
||||
struct v4l2_flash *vfind;
|
||||
|
||||
struct device_node *flash_node;
|
||||
struct device_node *indicator_node;
|
||||
struct fwnode_handle *flash_node;
|
||||
struct fwnode_handle *indicator_node;
|
||||
|
||||
struct as3645a_config cfg;
|
||||
|
||||
@ -493,30 +493,31 @@ static int as3645a_detect(struct as3645a *flash)
|
||||
|
||||
static int as3645a_parse_node(struct as3645a *flash,
|
||||
struct as3645a_names *names,
|
||||
struct device_node *node)
|
||||
struct fwnode_handle *fwnode)
|
||||
{
|
||||
struct as3645a_config *cfg = &flash->cfg;
|
||||
struct device_node *child;
|
||||
struct fwnode_handle *child;
|
||||
const char *name;
|
||||
int rval;
|
||||
|
||||
for_each_child_of_node(node, child) {
|
||||
fwnode_for_each_child_node(fwnode, child) {
|
||||
u32 id = 0;
|
||||
|
||||
of_property_read_u32(child, "reg", &id);
|
||||
fwnode_property_read_u32(child, "reg", &id);
|
||||
|
||||
switch (id) {
|
||||
case AS_LED_FLASH:
|
||||
flash->flash_node = of_node_get(child);
|
||||
flash->flash_node = child;
|
||||
break;
|
||||
case AS_LED_INDICATOR:
|
||||
flash->indicator_node = of_node_get(child);
|
||||
flash->indicator_node = child;
|
||||
break;
|
||||
default:
|
||||
dev_warn(&flash->client->dev,
|
||||
"unknown LED %u encountered, ignoring\n", id);
|
||||
break;
|
||||
}
|
||||
fwnode_handle_get(child);
|
||||
}
|
||||
|
||||
if (!flash->flash_node) {
|
||||
@ -524,14 +525,18 @@ static int as3645a_parse_node(struct as3645a *flash,
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
rval = of_property_read_string(flash->flash_node, "label", &name);
|
||||
if (!rval)
|
||||
rval = fwnode_property_read_string(flash->flash_node, "label", &name);
|
||||
if (!rval) {
|
||||
strlcpy(names->flash, name, sizeof(names->flash));
|
||||
else
|
||||
} else if (is_of_node(fwnode)) {
|
||||
snprintf(names->flash, sizeof(names->flash),
|
||||
"%pOFn:flash", node);
|
||||
"%pOFn:flash", to_of_node(fwnode));
|
||||
} else {
|
||||
dev_err(&flash->client->dev, "flash node has no label!\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
rval = of_property_read_u32(flash->flash_node, "flash-timeout-us",
|
||||
rval = fwnode_property_read_u32(flash->flash_node, "flash-timeout-us",
|
||||
&cfg->flash_timeout_us);
|
||||
if (rval < 0) {
|
||||
dev_err(&flash->client->dev,
|
||||
@ -539,7 +544,7 @@ static int as3645a_parse_node(struct as3645a *flash,
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
rval = of_property_read_u32(flash->flash_node, "flash-max-microamp",
|
||||
rval = fwnode_property_read_u32(flash->flash_node, "flash-max-microamp",
|
||||
&cfg->flash_max_ua);
|
||||
if (rval < 0) {
|
||||
dev_err(&flash->client->dev,
|
||||
@ -547,7 +552,7 @@ static int as3645a_parse_node(struct as3645a *flash,
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
rval = of_property_read_u32(flash->flash_node, "led-max-microamp",
|
||||
rval = fwnode_property_read_u32(flash->flash_node, "led-max-microamp",
|
||||
&cfg->assist_max_ua);
|
||||
if (rval < 0) {
|
||||
dev_err(&flash->client->dev,
|
||||
@ -555,10 +560,10 @@ static int as3645a_parse_node(struct as3645a *flash,
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
of_property_read_u32(flash->flash_node, "voltage-reference",
|
||||
fwnode_property_read_u32(flash->flash_node, "voltage-reference",
|
||||
&cfg->voltage_reference);
|
||||
|
||||
of_property_read_u32(flash->flash_node, "ams,input-max-microamp",
|
||||
fwnode_property_read_u32(flash->flash_node, "ams,input-max-microamp",
|
||||
&cfg->peak);
|
||||
cfg->peak = AS_PEAK_mA_TO_REG(cfg->peak);
|
||||
|
||||
@ -568,14 +573,20 @@ static int as3645a_parse_node(struct as3645a *flash,
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
rval = of_property_read_string(flash->indicator_node, "label", &name);
|
||||
if (!rval)
|
||||
rval = fwnode_property_read_string(flash->indicator_node, "label",
|
||||
&name);
|
||||
if (!rval) {
|
||||
strlcpy(names->indicator, name, sizeof(names->indicator));
|
||||
else
|
||||
} else if (is_of_node(fwnode)) {
|
||||
snprintf(names->indicator, sizeof(names->indicator),
|
||||
"%pOFn:indicator", node);
|
||||
"%pOFn:indicator", to_of_node(fwnode));
|
||||
} else {
|
||||
dev_err(&flash->client->dev, "indicator node has no label!\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
rval = of_property_read_u32(flash->indicator_node, "led-max-microamp",
|
||||
rval = fwnode_property_read_u32(flash->indicator_node,
|
||||
"led-max-microamp",
|
||||
&cfg->indicator_max_ua);
|
||||
if (rval < 0) {
|
||||
dev_err(&flash->client->dev,
|
||||
@ -586,8 +597,8 @@ static int as3645a_parse_node(struct as3645a *flash,
|
||||
return 0;
|
||||
|
||||
out_err:
|
||||
of_node_put(flash->flash_node);
|
||||
of_node_put(flash->indicator_node);
|
||||
fwnode_handle_put(flash->flash_node);
|
||||
fwnode_handle_put(flash->indicator_node);
|
||||
|
||||
return rval;
|
||||
}
|
||||
@ -668,14 +679,14 @@ static int as3645a_v4l2_setup(struct as3645a *flash)
|
||||
strlcpy(cfgind.dev_name, flash->iled_cdev.name, sizeof(cfg.dev_name));
|
||||
|
||||
flash->vf = v4l2_flash_init(
|
||||
&flash->client->dev, of_fwnode_handle(flash->flash_node),
|
||||
&flash->fled, NULL, &cfg);
|
||||
&flash->client->dev, flash->flash_node, &flash->fled, NULL,
|
||||
&cfg);
|
||||
if (IS_ERR(flash->vf))
|
||||
return PTR_ERR(flash->vf);
|
||||
|
||||
flash->vfind = v4l2_flash_indicator_init(
|
||||
&flash->client->dev, of_fwnode_handle(flash->indicator_node),
|
||||
&flash->iled_cdev, &cfgind);
|
||||
&flash->client->dev, flash->indicator_node, &flash->iled_cdev,
|
||||
&cfgind);
|
||||
if (IS_ERR(flash->vfind)) {
|
||||
v4l2_flash_release(flash->vf);
|
||||
return PTR_ERR(flash->vfind);
|
||||
@ -690,7 +701,7 @@ static int as3645a_probe(struct i2c_client *client)
|
||||
struct as3645a *flash;
|
||||
int rval;
|
||||
|
||||
if (client->dev.of_node == NULL)
|
||||
if (!dev_fwnode(&client->dev))
|
||||
return -ENODEV;
|
||||
|
||||
flash = devm_kzalloc(&client->dev, sizeof(*flash), GFP_KERNEL);
|
||||
@ -699,7 +710,7 @@ static int as3645a_probe(struct i2c_client *client)
|
||||
|
||||
flash->client = client;
|
||||
|
||||
rval = as3645a_parse_node(flash, &names, client->dev.of_node);
|
||||
rval = as3645a_parse_node(flash, &names, dev_fwnode(&client->dev));
|
||||
if (rval < 0)
|
||||
return rval;
|
||||
|
||||
@ -731,8 +742,8 @@ out_mutex_destroy:
|
||||
mutex_destroy(&flash->mutex);
|
||||
|
||||
out_put_nodes:
|
||||
of_node_put(flash->flash_node);
|
||||
of_node_put(flash->indicator_node);
|
||||
fwnode_handle_put(flash->flash_node);
|
||||
fwnode_handle_put(flash->indicator_node);
|
||||
|
||||
return rval;
|
||||
}
|
||||
@ -751,8 +762,8 @@ static int as3645a_remove(struct i2c_client *client)
|
||||
|
||||
mutex_destroy(&flash->mutex);
|
||||
|
||||
of_node_put(flash->flash_node);
|
||||
of_node_put(flash->indicator_node);
|
||||
fwnode_handle_put(flash->flash_node);
|
||||
fwnode_handle_put(flash->indicator_node);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -594,7 +594,6 @@ static int blinkm_probe(struct i2c_client *client,
|
||||
goto exit;
|
||||
}
|
||||
|
||||
data->i2c_addr = 0x09;
|
||||
data->i2c_addr = 0x08;
|
||||
/* i2c addr - use fake addr of 0x08 initially (real is 0x09) */
|
||||
data->fw_ver = 0xfe;
|
||||
|
||||
683
drivers/leds/leds-lm3532.c
Normal file
683
drivers/leds/leds-lm3532.c
Normal file
@ -0,0 +1,683 @@
|
||||
// SPDX-License-Identifier: GPL-2.0
|
||||
// TI LM3532 LED driver
|
||||
// Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
|
||||
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/leds.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/regulator/consumer.h>
|
||||
#include <linux/module.h>
|
||||
#include <uapi/linux/uleds.h>
|
||||
#include <linux/gpio/consumer.h>
|
||||
|
||||
#define LM3532_NAME "lm3532-led"
|
||||
#define LM3532_BL_MODE_MANUAL 0x00
|
||||
#define LM3532_BL_MODE_ALS 0x01
|
||||
|
||||
#define LM3532_REG_OUTPUT_CFG 0x10
|
||||
#define LM3532_REG_STARTSHUT_RAMP 0x11
|
||||
#define LM3532_REG_RT_RAMP 0x12
|
||||
#define LM3532_REG_PWM_A_CFG 0x13
|
||||
#define LM3532_REG_PWM_B_CFG 0x14
|
||||
#define LM3532_REG_PWM_C_CFG 0x15
|
||||
#define LM3532_REG_ZONE_CFG_A 0x16
|
||||
#define LM3532_REG_CTRL_A_BRT 0x17
|
||||
#define LM3532_REG_ZONE_CFG_B 0x18
|
||||
#define LM3532_REG_CTRL_B_BRT 0x19
|
||||
#define LM3532_REG_ZONE_CFG_C 0x1a
|
||||
#define LM3532_REG_CTRL_C_BRT 0x1b
|
||||
#define LM3532_REG_ENABLE 0x1d
|
||||
#define LM3532_ALS_CONFIG 0x23
|
||||
#define LM3532_REG_ZN_0_HI 0x60
|
||||
#define LM3532_REG_ZN_0_LO 0x61
|
||||
#define LM3532_REG_ZN_1_HI 0x62
|
||||
#define LM3532_REG_ZN_1_LO 0x63
|
||||
#define LM3532_REG_ZN_2_HI 0x64
|
||||
#define LM3532_REG_ZN_2_LO 0x65
|
||||
#define LM3532_REG_ZN_3_HI 0x66
|
||||
#define LM3532_REG_ZN_3_LO 0x67
|
||||
#define LM3532_REG_MAX 0x7e
|
||||
|
||||
/* Contorl Enable */
|
||||
#define LM3532_CTRL_A_ENABLE BIT(0)
|
||||
#define LM3532_CTRL_B_ENABLE BIT(1)
|
||||
#define LM3532_CTRL_C_ENABLE BIT(2)
|
||||
|
||||
/* PWM Zone Control */
|
||||
#define LM3532_PWM_ZONE_MASK 0x7c
|
||||
#define LM3532_PWM_ZONE_0_EN BIT(2)
|
||||
#define LM3532_PWM_ZONE_1_EN BIT(3)
|
||||
#define LM3532_PWM_ZONE_2_EN BIT(4)
|
||||
#define LM3532_PWM_ZONE_3_EN BIT(5)
|
||||
#define LM3532_PWM_ZONE_4_EN BIT(6)
|
||||
|
||||
/* Brightness Configuration */
|
||||
#define LM3532_I2C_CTRL BIT(0)
|
||||
#define LM3532_ALS_CTRL 0
|
||||
#define LM3532_LINEAR_MAP BIT(1)
|
||||
#define LM3532_ZONE_MASK (BIT(2) | BIT(3) | BIT(4))
|
||||
#define LM3532_ZONE_0 0
|
||||
#define LM3532_ZONE_1 BIT(2)
|
||||
#define LM3532_ZONE_2 BIT(3)
|
||||
#define LM3532_ZONE_3 (BIT(2) | BIT(3))
|
||||
#define LM3532_ZONE_4 BIT(4)
|
||||
|
||||
#define LM3532_ENABLE_ALS BIT(3)
|
||||
#define LM3532_ALS_SEL_SHIFT 6
|
||||
|
||||
/* Zone Boundary Register */
|
||||
#define LM3532_ALS_WINDOW_mV 2000
|
||||
#define LM3532_ALS_ZB_MAX 4
|
||||
#define LM3532_ALS_OFFSET_mV 2
|
||||
|
||||
#define LM3532_CONTROL_A 0
|
||||
#define LM3532_CONTROL_B 1
|
||||
#define LM3532_CONTROL_C 2
|
||||
#define LM3532_MAX_CONTROL_BANKS 3
|
||||
#define LM3532_MAX_LED_STRINGS 3
|
||||
|
||||
#define LM3532_OUTPUT_CFG_MASK 0x3
|
||||
#define LM3532_BRT_VAL_ADJUST 8
|
||||
#define LM3532_RAMP_DOWN_SHIFT 3
|
||||
|
||||
#define LM3532_NUM_RAMP_VALS 8
|
||||
#define LM3532_NUM_AVG_VALS 8
|
||||
#define LM3532_NUM_IMP_VALS 32
|
||||
|
||||
/*
|
||||
* struct lm3532_als_data
|
||||
* @config - value of ALS configuration register
|
||||
* @als1_imp_sel - value of ALS1 resistor select register
|
||||
* @als2_imp_sel - value of ALS2 resistor select register
|
||||
* @als_avrg_time - ALS averaging time
|
||||
* @als_input_mode - ALS input mode for brightness control
|
||||
* @als_vmin - Minimum ALS voltage
|
||||
* @als_vmax - Maximum ALS voltage
|
||||
* @zone_lo - values of ALS lo ZB(Zone Boundary) registers
|
||||
* @zone_hi - values of ALS hi ZB(Zone Boundary) registers
|
||||
*/
|
||||
struct lm3532_als_data {
|
||||
u8 config;
|
||||
u8 als1_imp_sel;
|
||||
u8 als2_imp_sel;
|
||||
u8 als_avrg_time;
|
||||
u8 als_input_mode;
|
||||
u32 als_vmin;
|
||||
u32 als_vmax;
|
||||
u8 zones_lo[LM3532_ALS_ZB_MAX];
|
||||
u8 zones_hi[LM3532_ALS_ZB_MAX];
|
||||
};
|
||||
|
||||
/**
|
||||
* struct lm3532_led
|
||||
* @led_dev: led class device
|
||||
* @priv - Pointer the device data structure
|
||||
* @control_bank - Control bank the LED is associated to
|
||||
* @mode - Mode of the LED string
|
||||
* @num_leds - Number of LED strings are supported in this array
|
||||
* @led_strings - The LED strings supported in this array
|
||||
* @label - LED label
|
||||
*/
|
||||
struct lm3532_led {
|
||||
struct led_classdev led_dev;
|
||||
struct lm3532_data *priv;
|
||||
|
||||
int control_bank;
|
||||
int mode;
|
||||
int num_leds;
|
||||
u32 led_strings[LM3532_MAX_CONTROL_BANKS];
|
||||
char label[LED_MAX_NAME_SIZE];
|
||||
};
|
||||
|
||||
/**
|
||||
* struct lm3532_data
|
||||
* @enable_gpio - Hardware enable gpio
|
||||
* @regulator: regulator
|
||||
* @client: i2c client
|
||||
* @regmap - Devices register map
|
||||
* @dev - Pointer to the devices device struct
|
||||
* @lock - Lock for reading/writing the device
|
||||
* @als_data - Pointer to the als data struct
|
||||
* @runtime_ramp_up - Runtime ramp up setting
|
||||
* @runtime_ramp_down - Runtime ramp down setting
|
||||
* @leds - Array of LED strings
|
||||
*/
|
||||
struct lm3532_data {
|
||||
struct gpio_desc *enable_gpio;
|
||||
struct regulator *regulator;
|
||||
struct i2c_client *client;
|
||||
struct regmap *regmap;
|
||||
struct device *dev;
|
||||
struct mutex lock;
|
||||
|
||||
struct lm3532_als_data *als_data;
|
||||
|
||||
u32 runtime_ramp_up;
|
||||
u32 runtime_ramp_down;
|
||||
|
||||
struct lm3532_led leds[];
|
||||
};
|
||||
|
||||
static const struct reg_default lm3532_reg_defs[] = {
|
||||
{LM3532_REG_OUTPUT_CFG, 0xe4},
|
||||
{LM3532_REG_STARTSHUT_RAMP, 0xc0},
|
||||
{LM3532_REG_RT_RAMP, 0xc0},
|
||||
{LM3532_REG_PWM_A_CFG, 0x82},
|
||||
{LM3532_REG_PWM_B_CFG, 0x82},
|
||||
{LM3532_REG_PWM_C_CFG, 0x82},
|
||||
{LM3532_REG_ZONE_CFG_A, 0xf1},
|
||||
{LM3532_REG_CTRL_A_BRT, 0xf3},
|
||||
{LM3532_REG_ZONE_CFG_B, 0xf1},
|
||||
{LM3532_REG_CTRL_B_BRT, 0xf3},
|
||||
{LM3532_REG_ZONE_CFG_C, 0xf1},
|
||||
{LM3532_REG_CTRL_C_BRT, 0xf3},
|
||||
{LM3532_REG_ENABLE, 0xf8},
|
||||
{LM3532_ALS_CONFIG, 0x44},
|
||||
{LM3532_REG_ZN_0_HI, 0x35},
|
||||
{LM3532_REG_ZN_0_LO, 0x33},
|
||||
{LM3532_REG_ZN_1_HI, 0x6a},
|
||||
{LM3532_REG_ZN_1_LO, 0x66},
|
||||
{LM3532_REG_ZN_2_HI, 0xa1},
|
||||
{LM3532_REG_ZN_2_LO, 0x99},
|
||||
{LM3532_REG_ZN_3_HI, 0xdc},
|
||||
{LM3532_REG_ZN_3_LO, 0xcc},
|
||||
};
|
||||
|
||||
static const struct regmap_config lm3532_regmap_config = {
|
||||
.reg_bits = 8,
|
||||
.val_bits = 8,
|
||||
|
||||
.max_register = LM3532_REG_MAX,
|
||||
.reg_defaults = lm3532_reg_defs,
|
||||
.num_reg_defaults = ARRAY_SIZE(lm3532_reg_defs),
|
||||
.cache_type = REGCACHE_FLAT,
|
||||
};
|
||||
|
||||
const static int als_imp_table[LM3532_NUM_IMP_VALS] = {37000, 18500, 12330,
|
||||
92500, 7400, 6170, 5290,
|
||||
4630, 4110, 3700, 3360,
|
||||
3080, 2850, 2640, 2440,
|
||||
2310, 2180, 2060, 1950,
|
||||
1850, 1760, 1680, 1610,
|
||||
1540, 1480, 1420, 1370,
|
||||
1320, 1280, 1230, 1190};
|
||||
static int lm3532_get_als_imp_index(int als_imped)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (als_imped > als_imp_table[1])
|
||||
return 0;
|
||||
|
||||
if (als_imped < als_imp_table[LM3532_NUM_IMP_VALS - 1])
|
||||
return LM3532_NUM_IMP_VALS - 1;
|
||||
|
||||
for (i = 1; i < LM3532_NUM_IMP_VALS; i++) {
|
||||
if (als_imped == als_imp_table[i])
|
||||
return i;
|
||||
|
||||
/* Find an approximate index by looking up the table */
|
||||
if (als_imped < als_imp_table[i - 1] &&
|
||||
als_imped > als_imp_table[i]) {
|
||||
if (als_imped - als_imp_table[i - 1] <
|
||||
als_imp_table[i] - als_imped)
|
||||
return i + 1;
|
||||
else
|
||||
return i;
|
||||
}
|
||||
}
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static int lm3532_get_index(const int table[], int size, int value)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 1; i < size; i++) {
|
||||
if (value == table[i])
|
||||
return i;
|
||||
|
||||
/* Find an approximate index by looking up the table */
|
||||
if (value > table[i - 1] &&
|
||||
value < table[i]) {
|
||||
if (value - table[i - 1] < table[i] - value)
|
||||
return i - 1;
|
||||
else
|
||||
return i;
|
||||
}
|
||||
}
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
const static int als_avrg_table[LM3532_NUM_AVG_VALS] = {17920, 35840, 71680,
|
||||
1433360, 286720, 573440,
|
||||
1146880, 2293760};
|
||||
static int lm3532_get_als_avg_index(int avg_time)
|
||||
{
|
||||
if (avg_time <= als_avrg_table[0])
|
||||
return 0;
|
||||
|
||||
if (avg_time > als_avrg_table[LM3532_NUM_AVG_VALS - 1])
|
||||
return LM3532_NUM_AVG_VALS - 1;
|
||||
|
||||
return lm3532_get_index(&als_avrg_table[0], LM3532_NUM_AVG_VALS,
|
||||
avg_time);
|
||||
}
|
||||
|
||||
const static int ramp_table[LM3532_NUM_RAMP_VALS] = { 8, 1024, 2048, 4096, 8192,
|
||||
16384, 32768, 65536};
|
||||
static int lm3532_get_ramp_index(int ramp_time)
|
||||
{
|
||||
if (ramp_time <= ramp_table[0])
|
||||
return 0;
|
||||
|
||||
if (ramp_time > ramp_table[LM3532_NUM_RAMP_VALS - 1])
|
||||
return LM3532_NUM_RAMP_VALS - 1;
|
||||
|
||||
return lm3532_get_index(&ramp_table[0], LM3532_NUM_RAMP_VALS,
|
||||
ramp_time);
|
||||
}
|
||||
|
||||
static int lm3532_led_enable(struct lm3532_led *led_data)
|
||||
{
|
||||
int ctrl_en_val = BIT(led_data->control_bank);
|
||||
int ret;
|
||||
|
||||
ret = regmap_update_bits(led_data->priv->regmap, LM3532_REG_ENABLE,
|
||||
ctrl_en_val, ctrl_en_val);
|
||||
if (ret) {
|
||||
dev_err(led_data->priv->dev, "Failed to set ctrl:%d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
return regulator_enable(led_data->priv->regulator);
|
||||
}
|
||||
|
||||
static int lm3532_led_disable(struct lm3532_led *led_data)
|
||||
{
|
||||
int ctrl_en_val = BIT(led_data->control_bank);
|
||||
int ret;
|
||||
|
||||
ret = regmap_update_bits(led_data->priv->regmap, LM3532_REG_ENABLE,
|
||||
ctrl_en_val, ~ctrl_en_val);
|
||||
if (ret) {
|
||||
dev_err(led_data->priv->dev, "Failed to set ctrl:%d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
return regulator_disable(led_data->priv->regulator);
|
||||
}
|
||||
|
||||
static int lm3532_brightness_set(struct led_classdev *led_cdev,
|
||||
enum led_brightness brt_val)
|
||||
{
|
||||
struct lm3532_led *led =
|
||||
container_of(led_cdev, struct lm3532_led, led_dev);
|
||||
u8 brightness_reg;
|
||||
int ret;
|
||||
|
||||
mutex_lock(&led->priv->lock);
|
||||
|
||||
if (led->mode == LM3532_BL_MODE_ALS) {
|
||||
if (brt_val > LED_OFF)
|
||||
ret = lm3532_led_enable(led);
|
||||
else
|
||||
ret = lm3532_led_disable(led);
|
||||
|
||||
goto unlock;
|
||||
}
|
||||
|
||||
if (brt_val == LED_OFF) {
|
||||
ret = lm3532_led_disable(led);
|
||||
goto unlock;
|
||||
}
|
||||
|
||||
ret = lm3532_led_enable(led);
|
||||
if (ret)
|
||||
goto unlock;
|
||||
|
||||
brightness_reg = LM3532_REG_CTRL_A_BRT + led->control_bank * 2;
|
||||
brt_val = brt_val / LM3532_BRT_VAL_ADJUST;
|
||||
|
||||
ret = regmap_write(led->priv->regmap, brightness_reg, brt_val);
|
||||
|
||||
unlock:
|
||||
mutex_unlock(&led->priv->lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int lm3532_init_registers(struct lm3532_led *led)
|
||||
{
|
||||
struct lm3532_data *drvdata = led->priv;
|
||||
unsigned int runtime_ramp_val;
|
||||
unsigned int output_cfg_val = 0;
|
||||
unsigned int output_cfg_shift = 0;
|
||||
unsigned int output_cfg_mask = 0;
|
||||
int ret, i;
|
||||
|
||||
for (i = 0; i < led->num_leds; i++) {
|
||||
output_cfg_shift = led->led_strings[i] * 2;
|
||||
output_cfg_val |= (led->control_bank << output_cfg_shift);
|
||||
output_cfg_mask |= LM3532_OUTPUT_CFG_MASK << output_cfg_shift;
|
||||
}
|
||||
|
||||
ret = regmap_update_bits(drvdata->regmap, LM3532_REG_OUTPUT_CFG,
|
||||
output_cfg_mask, output_cfg_val);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
runtime_ramp_val = drvdata->runtime_ramp_up |
|
||||
(drvdata->runtime_ramp_down << LM3532_RAMP_DOWN_SHIFT);
|
||||
|
||||
return regmap_write(drvdata->regmap, LM3532_REG_RT_RAMP,
|
||||
runtime_ramp_val);
|
||||
}
|
||||
|
||||
static int lm3532_als_configure(struct lm3532_data *priv,
|
||||
struct lm3532_led *led)
|
||||
{
|
||||
struct lm3532_als_data *als = priv->als_data;
|
||||
u32 als_vmin, als_vmax, als_vstep;
|
||||
int zone_reg = LM3532_REG_ZN_0_HI;
|
||||
int brightnes_config_reg;
|
||||
int ret;
|
||||
int i;
|
||||
|
||||
als_vmin = als->als_vmin;
|
||||
als_vmax = als->als_vmax;
|
||||
|
||||
als_vstep = (als_vmax - als_vmin) / ((LM3532_ALS_ZB_MAX + 1) * 2);
|
||||
|
||||
for (i = 0; i < LM3532_ALS_ZB_MAX; i++) {
|
||||
als->zones_lo[i] = ((als_vmin + als_vstep + (i * als_vstep)) *
|
||||
LED_FULL) / 1000;
|
||||
als->zones_hi[i] = ((als_vmin + LM3532_ALS_OFFSET_mV +
|
||||
als_vstep + (i * als_vstep)) * LED_FULL) / 1000;
|
||||
|
||||
zone_reg = LM3532_REG_ZN_0_HI + i * 2;
|
||||
ret = regmap_write(priv->regmap, zone_reg, als->zones_lo[i]);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
zone_reg += 1;
|
||||
ret = regmap_write(priv->regmap, zone_reg, als->zones_hi[i]);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
als->config = (als->als_avrg_time | (LM3532_ENABLE_ALS) |
|
||||
(als->als_input_mode << LM3532_ALS_SEL_SHIFT));
|
||||
|
||||
ret = regmap_write(priv->regmap, LM3532_ALS_CONFIG, als->config);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
brightnes_config_reg = LM3532_REG_ZONE_CFG_A + led->control_bank * 2;
|
||||
|
||||
return regmap_update_bits(priv->regmap, brightnes_config_reg,
|
||||
LM3532_I2C_CTRL, LM3532_ALS_CTRL);
|
||||
}
|
||||
|
||||
static int lm3532_parse_als(struct lm3532_data *priv)
|
||||
{
|
||||
struct lm3532_als_data *als;
|
||||
int als_avg_time;
|
||||
int als_impedance;
|
||||
int ret;
|
||||
|
||||
als = devm_kzalloc(priv->dev, sizeof(*als), GFP_KERNEL);
|
||||
if (als == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
ret = device_property_read_u32(&priv->client->dev, "ti,als-vmin",
|
||||
&als->als_vmin);
|
||||
if (ret)
|
||||
als->als_vmin = 0;
|
||||
|
||||
ret = device_property_read_u32(&priv->client->dev, "ti,als-vmax",
|
||||
&als->als_vmax);
|
||||
if (ret)
|
||||
als->als_vmax = LM3532_ALS_WINDOW_mV;
|
||||
|
||||
if (als->als_vmax > LM3532_ALS_WINDOW_mV) {
|
||||
ret = -EINVAL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = device_property_read_u32(&priv->client->dev, "ti,als1-imp-sel",
|
||||
&als_impedance);
|
||||
if (ret)
|
||||
als->als1_imp_sel = 0;
|
||||
else
|
||||
als->als1_imp_sel = lm3532_get_als_imp_index(als_impedance);
|
||||
|
||||
ret = device_property_read_u32(&priv->client->dev, "ti,als2-imp-sel",
|
||||
&als_impedance);
|
||||
if (ret)
|
||||
als->als2_imp_sel = 0;
|
||||
else
|
||||
als->als2_imp_sel = lm3532_get_als_imp_index(als_impedance);
|
||||
|
||||
ret = device_property_read_u32(&priv->client->dev, "ti,als-avrg-time-us",
|
||||
&als_avg_time);
|
||||
if (ret)
|
||||
als->als_avrg_time = 0;
|
||||
else
|
||||
als->als_avrg_time = lm3532_get_als_avg_index(als_avg_time);
|
||||
|
||||
ret = device_property_read_u8(&priv->client->dev, "ti,als-input-mode",
|
||||
&als->als_input_mode);
|
||||
if (ret)
|
||||
als->als_input_mode = 0;
|
||||
|
||||
if (als->als_input_mode > LM3532_BL_MODE_ALS) {
|
||||
ret = -EINVAL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
priv->als_data = als;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int lm3532_parse_node(struct lm3532_data *priv)
|
||||
{
|
||||
struct fwnode_handle *child = NULL;
|
||||
struct lm3532_led *led;
|
||||
const char *name;
|
||||
int control_bank;
|
||||
u32 ramp_time;
|
||||
size_t i = 0;
|
||||
int ret;
|
||||
|
||||
priv->enable_gpio = devm_gpiod_get_optional(&priv->client->dev,
|
||||
"enable", GPIOD_OUT_LOW);
|
||||
if (IS_ERR(priv->enable_gpio))
|
||||
priv->enable_gpio = NULL;
|
||||
|
||||
priv->regulator = devm_regulator_get(&priv->client->dev, "vin");
|
||||
if (IS_ERR(priv->regulator))
|
||||
priv->regulator = NULL;
|
||||
|
||||
ret = device_property_read_u32(&priv->client->dev, "ramp-up-us",
|
||||
&ramp_time);
|
||||
if (ret)
|
||||
dev_info(&priv->client->dev, "ramp-up-ms property missing\n");
|
||||
else
|
||||
priv->runtime_ramp_up = lm3532_get_ramp_index(ramp_time);
|
||||
|
||||
ret = device_property_read_u32(&priv->client->dev, "ramp-down-us",
|
||||
&ramp_time);
|
||||
if (ret)
|
||||
dev_info(&priv->client->dev, "ramp-down-ms property missing\n");
|
||||
else
|
||||
priv->runtime_ramp_down = lm3532_get_ramp_index(ramp_time);
|
||||
|
||||
device_for_each_child_node(priv->dev, child) {
|
||||
led = &priv->leds[i];
|
||||
|
||||
ret = fwnode_property_read_u32(child, "reg", &control_bank);
|
||||
if (ret) {
|
||||
dev_err(&priv->client->dev, "reg property missing\n");
|
||||
fwnode_handle_put(child);
|
||||
goto child_out;
|
||||
}
|
||||
|
||||
if (control_bank > LM3532_CONTROL_C) {
|
||||
dev_err(&priv->client->dev, "Control bank invalid\n");
|
||||
continue;
|
||||
}
|
||||
|
||||
led->control_bank = control_bank;
|
||||
|
||||
ret = fwnode_property_read_u32(child, "ti,led-mode",
|
||||
&led->mode);
|
||||
if (ret) {
|
||||
dev_err(&priv->client->dev, "ti,led-mode property missing\n");
|
||||
fwnode_handle_put(child);
|
||||
goto child_out;
|
||||
}
|
||||
|
||||
if (led->mode == LM3532_BL_MODE_ALS) {
|
||||
ret = lm3532_parse_als(priv);
|
||||
if (ret)
|
||||
dev_err(&priv->client->dev, "Failed to parse als\n");
|
||||
else
|
||||
lm3532_als_configure(priv, led);
|
||||
}
|
||||
|
||||
led->num_leds = fwnode_property_read_u32_array(child,
|
||||
"led-sources",
|
||||
NULL, 0);
|
||||
|
||||
if (led->num_leds > LM3532_MAX_LED_STRINGS) {
|
||||
dev_err(&priv->client->dev, "To many LED string defined\n");
|
||||
continue;
|
||||
}
|
||||
|
||||
ret = fwnode_property_read_u32_array(child, "led-sources",
|
||||
led->led_strings,
|
||||
led->num_leds);
|
||||
if (ret) {
|
||||
dev_err(&priv->client->dev, "led-sources property missing\n");
|
||||
fwnode_handle_put(child);
|
||||
goto child_out;
|
||||
}
|
||||
|
||||
fwnode_property_read_string(child, "linux,default-trigger",
|
||||
&led->led_dev.default_trigger);
|
||||
|
||||
ret = fwnode_property_read_string(child, "label", &name);
|
||||
if (ret)
|
||||
snprintf(led->label, sizeof(led->label),
|
||||
"%s::", priv->client->name);
|
||||
else
|
||||
snprintf(led->label, sizeof(led->label),
|
||||
"%s:%s", priv->client->name, name);
|
||||
|
||||
led->priv = priv;
|
||||
led->led_dev.name = led->label;
|
||||
led->led_dev.brightness_set_blocking = lm3532_brightness_set;
|
||||
|
||||
ret = devm_led_classdev_register(priv->dev, &led->led_dev);
|
||||
if (ret) {
|
||||
dev_err(&priv->client->dev, "led register err: %d\n",
|
||||
ret);
|
||||
fwnode_handle_put(child);
|
||||
goto child_out;
|
||||
}
|
||||
|
||||
lm3532_init_registers(led);
|
||||
|
||||
i++;
|
||||
}
|
||||
|
||||
child_out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int lm3532_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
struct lm3532_data *drvdata;
|
||||
int ret = 0;
|
||||
int count;
|
||||
|
||||
count = device_get_child_node_count(&client->dev);
|
||||
if (!count) {
|
||||
dev_err(&client->dev, "LEDs are not defined in device tree!");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
drvdata = devm_kzalloc(&client->dev, struct_size(drvdata, leds, count),
|
||||
GFP_KERNEL);
|
||||
if (drvdata == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
drvdata->client = client;
|
||||
drvdata->dev = &client->dev;
|
||||
|
||||
drvdata->regmap = devm_regmap_init_i2c(client, &lm3532_regmap_config);
|
||||
if (IS_ERR(drvdata->regmap)) {
|
||||
ret = PTR_ERR(drvdata->regmap);
|
||||
dev_err(&client->dev, "Failed to allocate register map: %d\n",
|
||||
ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
mutex_init(&drvdata->lock);
|
||||
i2c_set_clientdata(client, drvdata);
|
||||
|
||||
ret = lm3532_parse_node(drvdata);
|
||||
if (ret) {
|
||||
dev_err(&client->dev, "Failed to parse node\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (drvdata->enable_gpio)
|
||||
gpiod_direction_output(drvdata->enable_gpio, 1);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int lm3532_remove(struct i2c_client *client)
|
||||
{
|
||||
struct lm3532_data *drvdata = i2c_get_clientdata(client);
|
||||
|
||||
mutex_destroy(&drvdata->lock);
|
||||
|
||||
if (drvdata->enable_gpio)
|
||||
gpiod_direction_output(drvdata->enable_gpio, 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct of_device_id of_lm3532_leds_match[] = {
|
||||
{ .compatible = "ti,lm3532", },
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, of_lm3532_leds_match);
|
||||
|
||||
static const struct i2c_device_id lm3532_id[] = {
|
||||
{LM3532_NAME, 0},
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, lm3532_id);
|
||||
|
||||
static struct i2c_driver lm3532_i2c_driver = {
|
||||
.probe = lm3532_probe,
|
||||
.remove = lm3532_remove,
|
||||
.id_table = lm3532_id,
|
||||
.driver = {
|
||||
.name = LM3532_NAME,
|
||||
.of_match_table = of_lm3532_leds_match,
|
||||
},
|
||||
};
|
||||
module_i2c_driver(lm3532_i2c_driver);
|
||||
|
||||
MODULE_DESCRIPTION("Back Light driver for LM3532");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
|
||||
@ -60,67 +60,14 @@ static int lt3593_led_set(struct led_classdev *led_cdev,
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct lt3593_led_data *lt3593_led_probe_pdata(struct device *dev)
|
||||
{
|
||||
struct gpio_led_platform_data *pdata = dev_get_platdata(dev);
|
||||
const struct gpio_led *template = &pdata->leds[0];
|
||||
struct lt3593_led_data *led_data;
|
||||
int ret, state;
|
||||
|
||||
if (pdata->num_leds != 1)
|
||||
return ERR_PTR(-EINVAL);
|
||||
|
||||
led_data = devm_kzalloc(dev, sizeof(*led_data), GFP_KERNEL);
|
||||
if (!led_data)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
led_data->cdev.name = template->name;
|
||||
led_data->cdev.default_trigger = template->default_trigger;
|
||||
led_data->cdev.brightness_set_blocking = lt3593_led_set;
|
||||
|
||||
state = (template->default_state == LEDS_GPIO_DEFSTATE_ON);
|
||||
led_data->cdev.brightness = state ? LED_FULL : LED_OFF;
|
||||
|
||||
if (!template->retain_state_suspended)
|
||||
led_data->cdev.flags |= LED_CORE_SUSPENDRESUME;
|
||||
|
||||
ret = devm_gpio_request_one(dev, template->gpio, state ?
|
||||
GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW,
|
||||
template->name);
|
||||
if (ret < 0)
|
||||
return ERR_PTR(ret);
|
||||
|
||||
led_data->gpiod = gpio_to_desc(template->gpio);
|
||||
if (!led_data->gpiod)
|
||||
return ERR_PTR(-EPROBE_DEFER);
|
||||
|
||||
ret = devm_led_classdev_register(dev, &led_data->cdev);
|
||||
if (ret < 0)
|
||||
return ERR_PTR(ret);
|
||||
|
||||
dev_info(dev, "registered LT3593 LED '%s' at GPIO %d\n",
|
||||
template->name, template->gpio);
|
||||
|
||||
return led_data;
|
||||
}
|
||||
|
||||
static int lt3593_led_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct lt3593_led_data *led_data;
|
||||
struct fwnode_handle *child;
|
||||
int ret, state = LEDS_GPIO_DEFSTATE_OFF;
|
||||
enum gpiod_flags flags = GPIOD_OUT_LOW;
|
||||
const char *tmp;
|
||||
|
||||
if (dev_get_platdata(dev)) {
|
||||
led_data = lt3593_led_probe_pdata(dev);
|
||||
if (IS_ERR(led_data))
|
||||
return PTR_ERR(led_data);
|
||||
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (!dev->of_node)
|
||||
return -ENODEV;
|
||||
|
||||
@ -151,13 +98,8 @@ static int lt3593_led_probe(struct platform_device *pdev)
|
||||
&led_data->cdev.default_trigger);
|
||||
|
||||
if (!fwnode_property_read_string(child, "default-state", &tmp)) {
|
||||
if (!strcmp(tmp, "keep")) {
|
||||
state = LEDS_GPIO_DEFSTATE_KEEP;
|
||||
flags = GPIOD_ASIS;
|
||||
} else if (!strcmp(tmp, "on")) {
|
||||
if (!strcmp(tmp, "on"))
|
||||
state = LEDS_GPIO_DEFSTATE_ON;
|
||||
flags = GPIOD_OUT_HIGH;
|
||||
}
|
||||
}
|
||||
|
||||
led_data->cdev.name = led_data->name;
|
||||
@ -171,20 +113,16 @@ static int lt3593_led_probe(struct platform_device *pdev)
|
||||
}
|
||||
|
||||
led_data->cdev.dev->of_node = dev->of_node;
|
||||
|
||||
out:
|
||||
platform_set_drvdata(pdev, led_data);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_OF
|
||||
static const struct of_device_id of_lt3593_leds_match[] = {
|
||||
{ .compatible = "lltc,lt3593", },
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, of_lt3593_leds_match);
|
||||
#endif
|
||||
|
||||
static struct platform_driver lt3593_led_driver = {
|
||||
.probe = lt3593_led_probe,
|
||||
|
||||
@ -40,7 +40,6 @@
|
||||
* bits the chip supports.
|
||||
*/
|
||||
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/ctype.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/err.h>
|
||||
@ -48,8 +47,8 @@
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/leds.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of_device.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/property.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/string.h>
|
||||
|
||||
@ -110,15 +109,6 @@ static const struct i2c_device_id pca955x_id[] = {
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, pca955x_id);
|
||||
|
||||
static const struct acpi_device_id pca955x_acpi_ids[] = {
|
||||
{ "PCA9550", pca9550 },
|
||||
{ "PCA9551", pca9551 },
|
||||
{ "PCA9552", pca9552 },
|
||||
{ "PCA9553", pca9553 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(acpi, pca955x_acpi_ids);
|
||||
|
||||
struct pca955x {
|
||||
struct mutex lock;
|
||||
struct pca955x_led *leds;
|
||||
@ -373,16 +363,14 @@ static int pca955x_gpio_direction_output(struct gpio_chip *gc,
|
||||
}
|
||||
#endif /* CONFIG_LEDS_PCA955X_GPIO */
|
||||
|
||||
#if IS_ENABLED(CONFIG_OF)
|
||||
static struct pca955x_platform_data *
|
||||
pca955x_pdata_of_init(struct i2c_client *client, struct pca955x_chipdef *chip)
|
||||
pca955x_get_pdata(struct i2c_client *client, struct pca955x_chipdef *chip)
|
||||
{
|
||||
struct device_node *np = client->dev.of_node;
|
||||
struct device_node *child;
|
||||
struct pca955x_platform_data *pdata;
|
||||
struct fwnode_handle *child;
|
||||
int count;
|
||||
|
||||
count = of_get_child_count(np);
|
||||
count = device_get_child_node_count(&client->dev);
|
||||
if (!count || count > chip->bits)
|
||||
return ERR_PTR(-ENODEV);
|
||||
|
||||
@ -396,24 +384,25 @@ pca955x_pdata_of_init(struct i2c_client *client, struct pca955x_chipdef *chip)
|
||||
if (!pdata->leds)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
for_each_child_of_node(np, child) {
|
||||
device_for_each_child_node(&client->dev, child) {
|
||||
const char *name;
|
||||
u32 reg;
|
||||
int res;
|
||||
|
||||
res = of_property_read_u32(child, "reg", ®);
|
||||
res = fwnode_property_read_u32(child, "reg", ®);
|
||||
if ((res != 0) || (reg >= chip->bits))
|
||||
continue;
|
||||
|
||||
if (of_property_read_string(child, "label", &name))
|
||||
name = child->name;
|
||||
res = fwnode_property_read_string(child, "label", &name);
|
||||
if ((res != 0) && is_of_node(child))
|
||||
name = to_of_node(child)->name;
|
||||
|
||||
snprintf(pdata->leds[reg].name, sizeof(pdata->leds[reg].name),
|
||||
"%s", name);
|
||||
|
||||
pdata->leds[reg].type = PCA955X_TYPE_LED;
|
||||
of_property_read_u32(child, "type", &pdata->leds[reg].type);
|
||||
of_property_read_string(child, "linux,default-trigger",
|
||||
fwnode_property_read_u32(child, "type", &pdata->leds[reg].type);
|
||||
fwnode_property_read_string(child, "linux,default-trigger",
|
||||
&pdata->leds[reg].default_trigger);
|
||||
}
|
||||
|
||||
@ -429,15 +418,7 @@ static const struct of_device_id of_pca955x_match[] = {
|
||||
{ .compatible = "nxp,pca9553", .data = (void *)pca9553 },
|
||||
{},
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(of, of_pca955x_match);
|
||||
#else
|
||||
static struct pca955x_platform_data *
|
||||
pca955x_pdata_of_init(struct i2c_client *client, struct pca955x_chipdef *chip)
|
||||
{
|
||||
return ERR_PTR(-ENODEV);
|
||||
}
|
||||
#endif
|
||||
|
||||
static int pca955x_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
@ -450,20 +431,11 @@ static int pca955x_probe(struct i2c_client *client,
|
||||
struct pca955x_platform_data *pdata;
|
||||
int ngpios = 0;
|
||||
|
||||
if (id) {
|
||||
chip = &pca955x_chipdefs[id->driver_data];
|
||||
} else {
|
||||
const struct acpi_device_id *acpi_id;
|
||||
|
||||
acpi_id = acpi_match_device(pca955x_acpi_ids, &client->dev);
|
||||
if (!acpi_id)
|
||||
return -ENODEV;
|
||||
chip = &pca955x_chipdefs[acpi_id->driver_data];
|
||||
}
|
||||
adapter = to_i2c_adapter(client->dev.parent);
|
||||
pdata = dev_get_platdata(&client->dev);
|
||||
if (!pdata) {
|
||||
pdata = pca955x_pdata_of_init(client, chip);
|
||||
pdata = pca955x_get_pdata(client, chip);
|
||||
if (IS_ERR(pdata))
|
||||
return PTR_ERR(pdata);
|
||||
}
|
||||
@ -602,8 +574,7 @@ static int pca955x_probe(struct i2c_client *client,
|
||||
static struct i2c_driver pca955x_driver = {
|
||||
.driver = {
|
||||
.name = "leds-pca955x",
|
||||
.acpi_match_table = ACPI_PTR(pca955x_acpi_ids),
|
||||
.of_match_table = of_match_ptr(of_pca955x_match),
|
||||
.of_match_table = of_pca955x_match,
|
||||
},
|
||||
.probe = pca955x_probe,
|
||||
.id_table = pca955x_id,
|
||||
|
||||
@ -25,7 +25,6 @@
|
||||
* or by adding the 'nxp,hw-blink' property to the DTS.
|
||||
*/
|
||||
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/string.h>
|
||||
@ -33,6 +32,7 @@
|
||||
#include <linux/leds.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/property.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/platform_data/leds-pca963x.h>
|
||||
@ -97,15 +97,6 @@ static const struct i2c_device_id pca963x_id[] = {
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, pca963x_id);
|
||||
|
||||
static const struct acpi_device_id pca963x_acpi_ids[] = {
|
||||
{ "PCA9632", pca9633 },
|
||||
{ "PCA9633", pca9633 },
|
||||
{ "PCA9634", pca9634 },
|
||||
{ "PCA9635", pca9635 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(acpi, pca963x_acpi_ids);
|
||||
|
||||
struct pca963x_led;
|
||||
|
||||
struct pca963x {
|
||||
@ -287,16 +278,15 @@ static int pca963x_blink_set(struct led_classdev *led_cdev,
|
||||
return 0;
|
||||
}
|
||||
|
||||
#if IS_ENABLED(CONFIG_OF)
|
||||
static struct pca963x_platform_data *
|
||||
pca963x_dt_init(struct i2c_client *client, struct pca963x_chipdef *chip)
|
||||
pca963x_get_pdata(struct i2c_client *client, struct pca963x_chipdef *chip)
|
||||
{
|
||||
struct device_node *np = client->dev.of_node, *child;
|
||||
struct pca963x_platform_data *pdata;
|
||||
struct led_info *pca963x_leds;
|
||||
struct fwnode_handle *child;
|
||||
int count;
|
||||
|
||||
count = of_get_child_count(np);
|
||||
count = device_get_child_node_count(&client->dev);
|
||||
if (!count || count > chip->n_leds)
|
||||
return ERR_PTR(-ENODEV);
|
||||
|
||||
@ -305,18 +295,22 @@ pca963x_dt_init(struct i2c_client *client, struct pca963x_chipdef *chip)
|
||||
if (!pca963x_leds)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
for_each_child_of_node(np, child) {
|
||||
device_for_each_child_node(&client->dev, child) {
|
||||
struct led_info led = {};
|
||||
u32 reg;
|
||||
int res;
|
||||
|
||||
res = of_property_read_u32(child, "reg", ®);
|
||||
res = fwnode_property_read_u32(child, "reg", ®);
|
||||
if ((res != 0) || (reg >= chip->n_leds))
|
||||
continue;
|
||||
led.name =
|
||||
of_get_property(child, "label", NULL) ? : child->name;
|
||||
led.default_trigger =
|
||||
of_get_property(child, "linux,default-trigger", NULL);
|
||||
|
||||
res = fwnode_property_read_string(child, "label", &led.name);
|
||||
if ((res != 0) && is_of_node(child))
|
||||
led.name = to_of_node(child)->name;
|
||||
|
||||
fwnode_property_read_string(child, "linux,default-trigger",
|
||||
&led.default_trigger);
|
||||
|
||||
pca963x_leds[reg] = led;
|
||||
}
|
||||
pdata = devm_kzalloc(&client->dev,
|
||||
@ -328,22 +322,23 @@ pca963x_dt_init(struct i2c_client *client, struct pca963x_chipdef *chip)
|
||||
pdata->leds.num_leds = chip->n_leds;
|
||||
|
||||
/* default to open-drain unless totem pole (push-pull) is specified */
|
||||
if (of_property_read_bool(np, "nxp,totem-pole"))
|
||||
if (device_property_read_bool(&client->dev, "nxp,totem-pole"))
|
||||
pdata->outdrv = PCA963X_TOTEM_POLE;
|
||||
else
|
||||
pdata->outdrv = PCA963X_OPEN_DRAIN;
|
||||
|
||||
/* default to software blinking unless hardware blinking is specified */
|
||||
if (of_property_read_bool(np, "nxp,hw-blink"))
|
||||
if (device_property_read_bool(&client->dev, "nxp,hw-blink"))
|
||||
pdata->blink_type = PCA963X_HW_BLINK;
|
||||
else
|
||||
pdata->blink_type = PCA963X_SW_BLINK;
|
||||
|
||||
if (of_property_read_u32(np, "nxp,period-scale", &chip->scaling))
|
||||
if (device_property_read_u32(&client->dev, "nxp,period-scale",
|
||||
&chip->scaling))
|
||||
chip->scaling = 1000;
|
||||
|
||||
/* default to non-inverted output, unless inverted is specified */
|
||||
if (of_property_read_bool(np, "nxp,inverted-out"))
|
||||
if (device_property_read_bool(&client->dev, "nxp,inverted-out"))
|
||||
pdata->dir = PCA963X_INVERTED;
|
||||
else
|
||||
pdata->dir = PCA963X_NORMAL;
|
||||
@ -359,13 +354,6 @@ static const struct of_device_id of_pca963x_match[] = {
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, of_pca963x_match);
|
||||
#else
|
||||
static struct pca963x_platform_data *
|
||||
pca963x_dt_init(struct i2c_client *client, struct pca963x_chipdef *chip)
|
||||
{
|
||||
return ERR_PTR(-ENODEV);
|
||||
}
|
||||
#endif
|
||||
|
||||
static int pca963x_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
@ -376,20 +364,11 @@ static int pca963x_probe(struct i2c_client *client,
|
||||
struct pca963x_chipdef *chip;
|
||||
int i, err;
|
||||
|
||||
if (id) {
|
||||
chip = &pca963x_chipdefs[id->driver_data];
|
||||
} else {
|
||||
const struct acpi_device_id *acpi_id;
|
||||
|
||||
acpi_id = acpi_match_device(pca963x_acpi_ids, &client->dev);
|
||||
if (!acpi_id)
|
||||
return -ENODEV;
|
||||
chip = &pca963x_chipdefs[acpi_id->driver_data];
|
||||
}
|
||||
pdata = dev_get_platdata(&client->dev);
|
||||
|
||||
if (!pdata) {
|
||||
pdata = pca963x_dt_init(client, chip);
|
||||
pdata = pca963x_get_pdata(client, chip);
|
||||
if (IS_ERR(pdata)) {
|
||||
dev_warn(&client->dev, "could not parse configuration\n");
|
||||
pdata = NULL;
|
||||
@ -495,8 +474,7 @@ static int pca963x_remove(struct i2c_client *client)
|
||||
static struct i2c_driver pca963x_driver = {
|
||||
.driver = {
|
||||
.name = "leds-pca963x",
|
||||
.of_match_table = of_match_ptr(of_pca963x_match),
|
||||
.acpi_match_table = ACPI_PTR(pca963x_acpi_ids),
|
||||
.of_match_table = of_pca963x_match,
|
||||
},
|
||||
.probe = pca963x_probe,
|
||||
.remove = pca963x_remove,
|
||||
|
||||
@ -54,14 +54,6 @@ static void ti_lmu_disable_hw(void *data)
|
||||
gpiod_set_value(lmu->en_gpio, 0);
|
||||
}
|
||||
|
||||
static const struct mfd_cell lm3532_devices[] = {
|
||||
{
|
||||
.name = "ti-lmu-backlight",
|
||||
.id = LM3532,
|
||||
.of_compatible = "ti,lm3532-backlight",
|
||||
},
|
||||
};
|
||||
|
||||
#define LM363X_REGULATOR(_id) \
|
||||
{ \
|
||||
.name = "lm363x-regulator", \
|
||||
@ -141,7 +133,6 @@ static const struct ti_lmu_data chip##_data = \
|
||||
.max_register = max_reg, \
|
||||
} \
|
||||
|
||||
TI_LMU_DATA(lm3532, LM3532_MAX_REG);
|
||||
TI_LMU_DATA(lm3631, LM3631_MAX_REG);
|
||||
TI_LMU_DATA(lm3632, LM3632_MAX_REG);
|
||||
TI_LMU_DATA(lm3633, LM3633_MAX_REG);
|
||||
@ -211,7 +202,6 @@ static int ti_lmu_probe(struct i2c_client *cl, const struct i2c_device_id *id)
|
||||
}
|
||||
|
||||
static const struct of_device_id ti_lmu_of_match[] = {
|
||||
{ .compatible = "ti,lm3532", .data = &lm3532_data },
|
||||
{ .compatible = "ti,lm3631", .data = &lm3631_data },
|
||||
{ .compatible = "ti,lm3632", .data = &lm3632_data },
|
||||
{ .compatible = "ti,lm3633", .data = &lm3633_data },
|
||||
@ -222,7 +212,6 @@ static const struct of_device_id ti_lmu_of_match[] = {
|
||||
MODULE_DEVICE_TABLE(of, ti_lmu_of_match);
|
||||
|
||||
static const struct i2c_device_id ti_lmu_ids[] = {
|
||||
{ "lm3532", LM3532 },
|
||||
{ "lm3631", LM3631 },
|
||||
{ "lm3632", LM3632 },
|
||||
{ "lm3633", LM3633 },
|
||||
|
||||
@ -15,50 +15,6 @@
|
||||
|
||||
#include <linux/bitops.h>
|
||||
|
||||
/* LM3532 */
|
||||
#define LM3532_REG_OUTPUT_CFG 0x10
|
||||
#define LM3532_ILED1_CFG_MASK 0x03
|
||||
#define LM3532_ILED2_CFG_MASK 0x0C
|
||||
#define LM3532_ILED3_CFG_MASK 0x30
|
||||
#define LM3532_ILED1_CFG_SHIFT 0
|
||||
#define LM3532_ILED2_CFG_SHIFT 2
|
||||
#define LM3532_ILED3_CFG_SHIFT 4
|
||||
|
||||
#define LM3532_REG_RAMPUP 0x12
|
||||
#define LM3532_REG_RAMPDN LM3532_REG_RAMPUP
|
||||
#define LM3532_RAMPUP_MASK 0x07
|
||||
#define LM3532_RAMPUP_SHIFT 0
|
||||
#define LM3532_RAMPDN_MASK 0x38
|
||||
#define LM3532_RAMPDN_SHIFT 3
|
||||
|
||||
#define LM3532_REG_ENABLE 0x1D
|
||||
|
||||
#define LM3532_REG_PWM_A_CFG 0x13
|
||||
#define LM3532_PWM_A_MASK 0x05 /* zone 0 */
|
||||
#define LM3532_PWM_ZONE_0 BIT(2)
|
||||
|
||||
#define LM3532_REG_PWM_B_CFG 0x14
|
||||
#define LM3532_PWM_B_MASK 0x09 /* zone 1 */
|
||||
#define LM3532_PWM_ZONE_1 BIT(3)
|
||||
|
||||
#define LM3532_REG_PWM_C_CFG 0x15
|
||||
#define LM3532_PWM_C_MASK 0x11 /* zone 2 */
|
||||
#define LM3532_PWM_ZONE_2 BIT(4)
|
||||
|
||||
#define LM3532_REG_ZONE_CFG_A 0x16
|
||||
#define LM3532_REG_ZONE_CFG_B 0x18
|
||||
#define LM3532_REG_ZONE_CFG_C 0x1A
|
||||
#define LM3532_ZONE_MASK (BIT(2) | BIT(3) | BIT(4))
|
||||
#define LM3532_ZONE_0 0
|
||||
#define LM3532_ZONE_1 BIT(2)
|
||||
#define LM3532_ZONE_2 BIT(3)
|
||||
|
||||
#define LM3532_REG_BRT_A 0x70 /* zone 0 */
|
||||
#define LM3532_REG_BRT_B 0x76 /* zone 1 */
|
||||
#define LM3532_REG_BRT_C 0x7C /* zone 2 */
|
||||
|
||||
#define LM3532_MAX_REG 0x7E
|
||||
|
||||
/* LM3631 */
|
||||
#define LM3631_REG_DEVCTRL 0x00
|
||||
#define LM3631_LCD_EN_MASK BIT(1)
|
||||
|
||||
@ -22,7 +22,6 @@
|
||||
#define LMU_EVENT_MONITOR_DONE 0x01
|
||||
|
||||
enum ti_lmu_id {
|
||||
LM3532,
|
||||
LM3631,
|
||||
LM3632,
|
||||
LM3633,
|
||||
|
||||
@ -291,8 +291,8 @@ static bool toneport_has_led(struct usb_line6_toneport *toneport)
|
||||
}
|
||||
}
|
||||
|
||||
static const char * const led_colors[2] = { "red", "green" };
|
||||
static const int led_init_vals[2] = { 0x00, 0x26 };
|
||||
static const char * const toneport_led_colors[2] = { "red", "green" };
|
||||
static const int toneport_led_init_vals[2] = { 0x00, 0x26 };
|
||||
|
||||
static void toneport_update_led(struct usb_line6_toneport *toneport)
|
||||
{
|
||||
@ -320,9 +320,9 @@ static int toneport_init_leds(struct usb_line6_toneport *toneport)
|
||||
|
||||
led->toneport = toneport;
|
||||
snprintf(led->name, sizeof(led->name), "%s::%s",
|
||||
dev_name(dev), led_colors[i]);
|
||||
dev_name(dev), toneport_led_colors[i]);
|
||||
leddev->name = led->name;
|
||||
leddev->brightness = led_init_vals[i];
|
||||
leddev->brightness = toneport_led_init_vals[i];
|
||||
leddev->max_brightness = 0x26;
|
||||
leddev->brightness_set = toneport_led_brightness_set;
|
||||
err = led_classdev_register(dev, leddev);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user