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-rw-r--r--Documentation/acpi/dsd/leds.txt99
-rw-r--r--Documentation/devicetree/bindings/leds/leds-lm3532.txt101
-rw-r--r--Documentation/devicetree/bindings/mfd/ti-lmu.txt20
-rw-r--r--arch/arm/boot/dts/omap4-droid4-xt894.dts27
-rw-r--r--drivers/leds/Kconfig33
-rw-r--r--drivers/leds/Makefile1
-rw-r--r--drivers/leds/led-class.c1
-rw-r--r--drivers/leds/led-core.c5
-rw-r--r--drivers/leds/leds-as3645a.c93
-rw-r--r--drivers/leds/leds-blinkm.c1
-rw-r--r--drivers/leds/leds-lm3532.c683
-rw-r--r--drivers/leds/leds-lt3593.c64
-rw-r--r--drivers/leds/leds-pca955x.c57
-rw-r--r--drivers/leds/leds-pca963x.c66
-rw-r--r--drivers/mfd/ti-lmu.c11
-rw-r--r--include/linux/mfd/ti-lmu-register.h44
-rw-r--r--include/linux/mfd/ti-lmu.h1
-rw-r--r--sound/usb/line6/toneport.c8
18 files changed, 1023 insertions, 292 deletions
diff --git a/Documentation/acpi/dsd/leds.txt b/Documentation/acpi/dsd/leds.txt
new file mode 100644
index 000000000000..81a63af42ed2
--- /dev/null
+++ b/Documentation/acpi/dsd/leds.txt
@@ -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
diff --git a/Documentation/devicetree/bindings/leds/leds-lm3532.txt b/Documentation/devicetree/bindings/leds/leds-lm3532.txt
new file mode 100644
index 000000000000..c087f85ddddc
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-lm3532.txt
@@ -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
diff --git a/Documentation/devicetree/bindings/mfd/ti-lmu.txt b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
index c885cf89b8ce..980394d701a7 100644
--- a/Documentation/devicetree/bindings/mfd/ti-lmu.txt
+++ b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
@@ -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>;
diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts
index e21ec929f096..714863f8f261 100644
--- a/arch/arm/boot/dts/omap4-droid4-xt894.dts
+++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts
@@ -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";
};
};
};
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index a72f97fca57b..f3000ccb8d35 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -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.
@@ -56,7 +56,7 @@ config LEDS_AAT1290
depends on OF
depends on PINCTRL
help
- This option enables support for the LEDs on the AAT1290.
+ This option enables support for the LEDs on the AAT1290.
config LEDS_AN30259A
tristate "LED support for Panasonic AN30259A"
@@ -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
@@ -413,13 +423,13 @@ config LEDS_CLEVO_MAIL
This module can drive the mail LED for the following notebooks:
- Clevo D400P
- Clevo D410J
- Clevo D410V
- Clevo D400V/D470V (not tested, but might work)
- Clevo M540N
- Clevo M5x0N (not tested, but might work)
- Positivo Mobile (Clevo M5x0V)
+ Clevo D400P
+ Clevo D410J
+ Clevo D410V
+ Clevo D400V/D470V (not tested, but might work)
+ Clevo M540N
+ Clevo M5x0N (not tested, but might work)
+ Positivo Mobile (Clevo M5x0V)
If your model is not listed here you can try the "nodetect"
module parameter.
@@ -462,7 +472,7 @@ config LEDS_WM831X_STATUS
depends on MFD_WM831X
help
This option enables support for the status LEDs of the WM831x
- series of PMICs.
+ series of PMICs.
config LEDS_WM8350
tristate "LED Support for WM8350 AudioPlus PMIC"
@@ -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
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 4c1b0054f379..7a8b1f55d459 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -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
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 3c7e3487b373..85848c5da705 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -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:
diff --git a/drivers/leds/led-core.c b/drivers/leds/led-core.c
index e3da7c03da1b..e9ae7f87ab90 100644
--- a/drivers/leds/led-core.c
+++ b/drivers/leds/led-core.c
@@ -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))
diff --git a/drivers/leds/leds-as3645a.c b/drivers/leds/leds-as3645a.c
index 98a69b1a43f9..b0df514992e1 100644
--- a/drivers/leds/leds-as3645a.c
+++ b/drivers/leds/leds-as3645a.c
@@ -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) {
@@ -524,42 +525,46 @@ 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",
- &cfg->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,
"can't read flash-timeout-us property for flash\n");
goto out_err;
}
- rval = of_property_read_u32(flash->flash_node, "flash-max-microamp",
- &cfg->flash_max_ua);
+ rval = fwnode_property_read_u32(flash->flash_node, "flash-max-microamp",
+ &cfg->flash_max_ua);
if (rval < 0) {
dev_err(&flash->client->dev,
"can't read flash-max-microamp property for flash\n");
goto out_err;
}
- rval = of_property_read_u32(flash->flash_node, "led-max-microamp",
- &cfg->assist_max_ua);
+ rval = fwnode_property_read_u32(flash->flash_node, "led-max-microamp",
+ &cfg->assist_max_ua);
if (rval < 0) {
dev_err(&flash->client->dev,
"can't read led-max-microamp property for flash\n");
goto out_err;
}
- of_property_read_u32(flash->flash_node, "voltage-reference",
- &cfg->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",
- &cfg->peak);
+ fwnode_property_read_u32(flash->flash_node, "ams,input-max-microamp",
+ &cfg->peak);
cfg->peak = AS_PEAK_mA_TO_REG(cfg->peak);
if (!flash->indicator_node) {
@@ -568,15 +573,21 @@ 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",
- &cfg->indicator_max_ua);
+ rval = fwnode_property_read_u32(flash->indicator_node,
+ "led-max-microamp",
+ &cfg->indicator_max_ua);
if (rval < 0) {
dev_err(&flash->client->dev,
"can't read led-max-microamp property for indicator\n");
@@ -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;
}
diff --git a/drivers/leds/leds-blinkm.c b/drivers/leds/leds-blinkm.c
index 851c1920b63c..11b771fb933b 100644
--- a/drivers/leds/leds-blinkm.c
+++ b/drivers/leds/leds-blinkm.c
@@ -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;
diff --git a/drivers/leds/leds-lm3532.c b/drivers/leds/leds-lm3532.c
new file mode 100644
index 000000000000..180895b83b88
--- /dev/null
+++ b/drivers/leds/leds-lm3532.c
@@ -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);