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-rw-r--r--Documentation/devicetree/bindings/leds/leds-cpcap.txt29
-rw-r--r--Documentation/devicetree/bindings/leds/leds-mt6323.txt60
-rw-r--r--Documentation/devicetree/bindings/leds/leds-pca9532.txt10
-rw-r--r--drivers/leds/Kconfig27
-rw-r--r--drivers/leds/Makefile3
-rw-r--r--drivers/leds/led-class.c26
-rw-r--r--drivers/leds/leds-cpcap.c239
-rw-r--r--drivers/leds/leds-gpio.c12
-rw-r--r--drivers/leds/leds-lp3952.c18
-rw-r--r--drivers/leds/leds-mt6323.c502
-rw-r--r--drivers/leds/leds-pca9532.c27
-rw-r--r--drivers/leds/trigger/ledtrig-cpu.c33
-rw-r--r--drivers/platform/x86/Kconfig8
-rw-r--r--drivers/platform/x86/Makefile1
-rw-r--r--drivers/platform/x86/dell-laptop.c28
-rw-r--r--drivers/platform/x86/dell-wmi-led.c (renamed from drivers/leds/dell-led.c)141
-rw-r--r--include/linux/dell-led.h6
-rw-r--r--include/linux/leds-pca9532.h4
-rw-r--r--include/linux/leds.h14
-rw-r--r--include/linux/mfd/motorola-cpcap.h3
-rw-r--r--sound/pci/hda/dell_wmi_helper.c30
21 files changed, 1043 insertions, 178 deletions
diff --git a/Documentation/devicetree/bindings/leds/leds-cpcap.txt b/Documentation/devicetree/bindings/leds/leds-cpcap.txt
new file mode 100644
index 000000000000..ebf7cdc7f70c
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-cpcap.txt
@@ -0,0 +1,29 @@
+Motorola CPCAP PMIC LEDs
+------------------------
+
+This module is part of the CPCAP. For more details about the whole
+chip see Documentation/devicetree/bindings/mfd/motorola-cpcap.txt.
+
+Requires node properties:
+- compatible: should be one of
+ * "motorola,cpcap-led-mdl" (Main Display Lighting)
+ * "motorola,cpcap-led-kl" (Keyboard Lighting)
+ * "motorola,cpcap-led-adl" (Aux Display Lighting)
+ * "motorola,cpcap-led-red" (Red Triode)
+ * "motorola,cpcap-led-green" (Green Triode)
+ * "motorola,cpcap-led-blue" (Blue Triode)
+ * "motorola,cpcap-led-cf" (Camera Flash)
+ * "motorola,cpcap-led-bt" (Bluetooth)
+ * "motorola,cpcap-led-cp" (Camera Privacy LED)
+- label: see Documentation/devicetree/bindings/leds/common.txt
+- vdd-supply: A phandle to the regulator powering the LED
+
+Example:
+
+&cpcap {
+ cpcap_led_red: red-led {
+ compatible = "motorola,cpcap-led-red";
+ label = "cpcap:red";
+ vdd-supply = <&sw5>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/leds/leds-mt6323.txt b/Documentation/devicetree/bindings/leds/leds-mt6323.txt
new file mode 100644
index 000000000000..45bf9f7d85f3
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-mt6323.txt
@@ -0,0 +1,60 @@
+Device Tree Bindings for LED support on MT6323 PMIC
+
+MT6323 LED controller is subfunction provided by MT6323 PMIC, so the LED
+controllers are defined as the subnode of the function node provided by MT6323
+PMIC controller that is being defined as one kind of Muti-Function Device (MFD)
+using shared bus called PMIC wrapper for each subfunction to access remote
+MT6323 PMIC hardware.
+
+For MT6323 MFD bindings see:
+Documentation/devicetree/bindings/mfd/mt6397.txt
+For MediaTek PMIC wrapper bindings see:
+Documentation/devicetree/bindings/soc/mediatek/pwrap.txt
+
+Required properties:
+- compatible : Must be "mediatek,mt6323-led"
+- address-cells : Must be 1
+- size-cells : Must be 0
+
+Each led is represented as a child node of the mediatek,mt6323-led that
+describes the initial behavior for each LED physically and currently only four
+LED child nodes can be supported.
+
+Required properties for the LED child node:
+- reg : LED channel number (0..3)
+
+Optional properties for the LED child node:
+- label : See Documentation/devicetree/bindings/leds/common.txt
+- linux,default-trigger : See Documentation/devicetree/bindings/leds/common.txt
+- default-state: See Documentation/devicetree/bindings/leds/common.txt
+
+Example:
+
+ mt6323: pmic {
+ compatible = "mediatek,mt6323";
+
+ ...
+
+ mt6323led: leds {
+ compatible = "mediatek,mt6323-led";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@0 {
+ reg = <0>;
+ label = "LED0";
+ linux,default-trigger = "timer";
+ default-state = "on";
+ };
+ led@1 {
+ reg = <1>;
+ label = "LED1";
+ default-state = "off";
+ };
+ led@2 {
+ reg = <2>;
+ label = "LED2";
+ default-state = "on";
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/leds/leds-pca9532.txt b/Documentation/devicetree/bindings/leds/leds-pca9532.txt
index 198f3ba0e01f..f769c52e3643 100644
--- a/Documentation/devicetree/bindings/leds/leds-pca9532.txt
+++ b/Documentation/devicetree/bindings/leds/leds-pca9532.txt
@@ -17,6 +17,8 @@ Optional sub-node properties:
- label: see Documentation/devicetree/bindings/leds/common.txt
- type: Output configuration, see dt-bindings/leds/leds-pca9532.h (default NONE)
- linux,default-trigger: see Documentation/devicetree/bindings/leds/common.txt
+ - default-state: see Documentation/devicetree/bindings/leds/common.txt
+ This property is only valid for sub-nodes of type <PCA9532_TYPE_LED>.
Example:
#include <dt-bindings/leds/leds-pca9532.h>
@@ -33,6 +35,14 @@ Example:
label = "pca:green:power";
type = <PCA9532_TYPE_LED>;
};
+ kernel-booting {
+ type = <PCA9532_TYPE_LED>;
+ default-state = "on";
+ };
+ sys-stat {
+ type = <PCA9532_TYPE_LED>;
+ default-state = "keep"; // don't touch, was set by U-Boot
+ };
};
For more product information please see the link below:
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 275f467956ee..6c2999872090 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -76,6 +76,15 @@ config LEDS_BCM6358
This option enables support for LEDs connected to the BCM6358
LED HW controller accessed via MMIO registers.
+config LEDS_CPCAP
+ tristate "LED Support for Motorola CPCAP"
+ depends on LEDS_CLASS
+ depends on MFD_CPCAP
+ depends on OF
+ help
+ This option enables support for LEDs offered by Motorola's
+ CPCAP PMIC.
+
config LEDS_LM3530
tristate "LCD Backlight driver for LM3530"
depends on LEDS_CLASS
@@ -126,6 +135,14 @@ config LEDS_MIKROTIK_RB532
This option enables support for the so called "User LED" of
Mikrotik's Routerboard 532.
+config LEDS_MT6323
+ tristate "LED Support for Mediatek MT6323 PMIC"
+ depends on LEDS_CLASS
+ depends on MFD_MT6397
+ help
+ This option enables support for on-chip LED drivers found on
+ Mediatek MT6323 PMIC.
+
config LEDS_S3C24XX
tristate "LED Support for Samsung S3C24XX GPIO LEDs"
depends on LEDS_CLASS
@@ -241,7 +258,6 @@ config LEDS_LP3952
tristate "LED Support for TI LP3952 2 channel LED driver"
depends on LEDS_CLASS
depends on I2C
- depends on ACPI
depends on GPIOLIB
select REGMAP_I2C
help
@@ -463,15 +479,6 @@ config LEDS_ADP5520
To compile this driver as a module, choose M here: the module will
be called leds-adp5520.
-config LEDS_DELL_NETBOOKS
- tristate "External LED on Dell Business Netbooks"
- depends on LEDS_CLASS
- depends on X86 && ACPI_WMI
- depends on DELL_SMBIOS
- help
- This adds support for the Latitude 2100 and similar
- notebooks that have an external LED.
-
config LEDS_MC13783
tristate "LED Support for MC13XXX PMIC"
depends on LEDS_CLASS
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 6b8273736478..45f133962ed8 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_LEDS_AAT1290) += leds-aat1290.o
obj-$(CONFIG_LEDS_BCM6328) += leds-bcm6328.o
obj-$(CONFIG_LEDS_BCM6358) += leds-bcm6358.o
obj-$(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_LM3533) += leds-lm3533.o
@@ -52,7 +53,6 @@ obj-$(CONFIG_LEDS_REGULATOR) += leds-regulator.o
obj-$(CONFIG_LEDS_INTEL_SS4200) += leds-ss4200.o
obj-$(CONFIG_LEDS_LT3593) += leds-lt3593.o
obj-$(CONFIG_LEDS_ADP5520) += leds-adp5520.o
-obj-$(CONFIG_LEDS_DELL_NETBOOKS) += dell-led.o
obj-$(CONFIG_LEDS_MC13783) += leds-mc13783.o
obj-$(CONFIG_LEDS_NS2) += leds-ns2.o
obj-$(CONFIG_LEDS_NETXBIG) += leds-netxbig.o
@@ -72,6 +72,7 @@ obj-$(CONFIG_LEDS_IS31FL32XX) += leds-is31fl32xx.o
obj-$(CONFIG_LEDS_PM8058) += leds-pm8058.o
obj-$(CONFIG_LEDS_MLXCPLD) += leds-mlxcpld.o
obj-$(CONFIG_LEDS_NIC78BX) += leds-nic78bx.o
+obj-$(CONFIG_LEDS_MT6323) += leds-mt6323.o
# LED SPI Drivers
obj-$(CONFIG_LEDS_DAC124S085) += leds-dac124s085.o
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index f2b0a80a62b4..b0e2d55acbd6 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -244,11 +244,14 @@ static int led_classdev_next_name(const char *init_name, char *name,
}
/**
- * led_classdev_register - register a new object of led_classdev class.
- * @parent: The device to register.
+ * of_led_classdev_register - register a new object of led_classdev class.
+ *
+ * @parent: parent of LED device
* @led_cdev: the led_classdev structure for this device.
+ * @np: DT node describing this LED
*/
-int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
+int of_led_classdev_register(struct device *parent, struct device_node *np,
+ struct led_classdev *led_cdev)
{
char name[LED_MAX_NAME_SIZE];
int ret;
@@ -261,6 +264,7 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
led_cdev, led_cdev->groups, "%s", name);
if (IS_ERR(led_cdev->dev))
return PTR_ERR(led_cdev->dev);
+ led_cdev->dev->of_node = np;
if (ret)
dev_warn(parent, "Led %s renamed to %s due to name collision",
@@ -303,7 +307,7 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
return 0;
}
-EXPORT_SYMBOL_GPL(led_classdev_register);
+EXPORT_SYMBOL_GPL(of_led_classdev_register);
/**
* led_classdev_unregister - unregisters a object of led_properties class.
@@ -348,12 +352,14 @@ static void devm_led_classdev_release(struct device *dev, void *res)
}
/**
- * devm_led_classdev_register - resource managed led_classdev_register()
- * @parent: The device to register.
+ * devm_of_led_classdev_register - resource managed led_classdev_register()
+ *
+ * @parent: parent of LED device
* @led_cdev: the led_classdev structure for this device.
*/
-int devm_led_classdev_register(struct device *parent,
- struct led_classdev *led_cdev)
+int devm_of_led_classdev_register(struct device *parent,
+ struct device_node *np,
+ struct led_classdev *led_cdev)
{
struct led_classdev **dr;
int rc;
@@ -362,7 +368,7 @@ int devm_led_classdev_register(struct device *parent,
if (!dr)
return -ENOMEM;
- rc = led_classdev_register(parent, led_cdev);
+ rc = of_led_classdev_register(parent, np, led_cdev);
if (rc) {
devres_free(dr);
return rc;
@@ -373,7 +379,7 @@ int devm_led_classdev_register(struct device *parent,
return 0;
}
-EXPORT_SYMBOL_GPL(devm_led_classdev_register);
+EXPORT_SYMBOL_GPL(devm_of_led_classdev_register);
static int devm_led_classdev_match(struct device *dev, void *res, void *data)
{
diff --git a/drivers/leds/leds-cpcap.c b/drivers/leds/leds-cpcap.c
new file mode 100644
index 000000000000..f0f28c442807
--- /dev/null
+++ b/drivers/leds/leds-cpcap.c
@@ -0,0 +1,239 @@
+/*
+ * Copyright (c) 2017 Sebastian Reichel <sre@kernel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 or
+ * later as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/leds.h>
+#include <linux/mfd/motorola-cpcap.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+
+#define CPCAP_LED_NO_CURRENT 0x0001
+
+struct cpcap_led_info {
+ u16 reg;
+ u16 mask;
+ u16 limit;
+ u16 init_mask;
+ u16 init_val;
+};
+
+static const struct cpcap_led_info cpcap_led_red = {
+ .reg = CPCAP_REG_REDC,
+ .mask = 0x03FF,
+ .limit = 31,
+};
+
+static const struct cpcap_led_info cpcap_led_green = {
+ .reg = CPCAP_REG_GREENC,
+ .mask = 0x03FF,
+ .limit = 31,
+};
+
+static const struct cpcap_led_info cpcap_led_blue = {
+ .reg = CPCAP_REG_BLUEC,
+ .mask = 0x03FF,
+ .limit = 31,
+};
+
+/* aux display light */
+static const struct cpcap_led_info cpcap_led_adl = {
+ .reg = CPCAP_REG_ADLC,
+ .mask = 0x000F,
+ .limit = 1,
+ .init_mask = 0x7FFF,
+ .init_val = 0x5FF0,
+};
+
+/* camera privacy led */
+static const struct cpcap_led_info cpcap_led_cp = {
+ .reg = CPCAP_REG_CLEDC,
+ .mask = 0x0007,
+ .limit = 1,
+ .init_mask = 0x03FF,
+ .init_val = 0x0008,
+};
+
+struct cpcap_led {
+ struct led_classdev led;
+ const struct cpcap_led_info *info;
+ struct device *dev;
+ struct regmap *regmap;
+ struct mutex update_lock;
+ struct regulator *vdd;
+ bool powered;
+
+ u32 current_limit;
+};
+
+static u16 cpcap_led_val(u8 current_limit, u8 duty_cycle)
+{
+ current_limit &= 0x1f; /* 5 bit */
+ duty_cycle &= 0x0f; /* 4 bit */
+
+ return current_limit << 4 | duty_cycle;
+}
+
+static int cpcap_led_set_power(struct cpcap_led *led, bool status)
+{
+ int err;
+
+ if (status == led->powered)
+ return 0;
+
+ if (status)
+ err = regulator_enable(led->vdd);
+ else
+ err = regulator_disable(led->vdd);
+
+ if (err) {
+ dev_err(led->dev, "regulator failure: %d", err);
+ return err;
+ }
+
+ led->powered = status;
+
+ return 0;
+}
+
+static int cpcap_led_set(struct led_classdev *ledc, enum led_brightness value)
+{
+ struct cpcap_led *led = container_of(ledc, struct cpcap_led, led);
+ int brightness;
+ int err;
+
+ mutex_lock(&led->update_lock);
+
+ if (value > LED_OFF) {
+ err = cpcap_led_set_power(led, true);
+ if (err)
+ goto exit;
+ }
+
+ if (value == LED_OFF) {
+ /* Avoid HW issue by turning off current before duty cycle */
+ err = regmap_update_bits(led->regmap,
+ led->info->reg, led->info->mask, CPCAP_LED_NO_CURRENT);
+ if (err) {
+ dev_err(led->dev, "regmap failed: %d", err);
+ goto exit;
+ }
+
+ brightness = cpcap_led_val(value, LED_OFF);
+ } else {
+ brightness = cpcap_led_val(value, LED_ON);
+ }
+
+ err = regmap_update_bits(led->regmap, led->info->reg, led->info->mask,
+ brightness);
+ if (err) {
+ dev_err(led->dev, "regmap failed: %d", err);
+ goto exit;
+ }
+
+ if (value == LED_OFF) {
+ err = cpcap_led_set_power(led, false);
+ if (err)
+ goto exit;
+ }
+
+exit:
+ mutex_unlock(&led->update_lock);
+ return err;
+}
+
+static const struct of_device_id cpcap_led_of_match[] = {
+ { .compatible = "motorola,cpcap-led-red", .data = &cpcap_led_red },
+ { .compatible = "motorola,cpcap-led-green", .data = &cpcap_led_green },
+ { .compatible = "motorola,cpcap-led-blue", .data = &cpcap_led_blue },
+ { .compatible = "motorola,cpcap-led-adl", .data = &cpcap_led_adl },
+ { .compatible = "motorola,cpcap-led-cp", .data = &cpcap_led_cp },
+ {},
+};
+MODULE_DEVICE_TABLE(of, cpcap_led_of_match);
+
+static int cpcap_led_probe(struct platform_device *pdev)
+{
+ const struct of_device_id *match;
+ struct cpcap_led *led;
+ int err;
+
+ match = of_match_device(of_match_ptr(cpcap_led_of_match), &pdev->dev);
+ if (!match || !match->data)
+ return -EINVAL;
+
+ led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL);
+ if (!led)
+ return -ENOMEM;
+ platform_set_drvdata(pdev, led);
+ led->info = match->data;
+ led->dev = &pdev->dev;
+
+ if (led->info->reg == 0x0000) {
+ dev_err(led->dev, "Unsupported LED");
+ return -ENODEV;
+ }
+
+ led->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!led->regmap)
+ return -ENODEV;
+
+ led->vdd = devm_regulator_get(&pdev->dev, "vdd");
+ if (IS_ERR(led->vdd)) {
+ err = PTR_ERR(led->vdd);
+ dev_err(led->dev, "Couldn't get regulator: %d", err);
+ return err;
+ }
+
+ err = device_property_read_string(&pdev->dev, "label", &led->led.name);
+ if (err) {
+ dev_err(led->dev, "Couldn't read LED label: %d", err);
+ return err;
+ }
+
+ if (led->info->init_mask) {
+ err = regmap_update_bits(led->regmap, led->info->reg,
+ led->info->init_mask, led->info->init_val);
+ if (err) {
+ dev_err(led->dev, "regmap failed: %d", err);
+ return err;
+ }
+ }
+
+ mutex_init(&led->update_lock);
+
+ led->led.max_brightness = led->info->limit;
+ led->led.brightness_set_blocking = cpcap_led_set;
+ err = devm_led_classdev_register(&pdev->dev, &led->led);
+ if (err) {
+ dev_err(led->dev, "Couldn't register LED: %d", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static struct platform_driver cpcap_led_driver = {
+ .probe = cpcap_led_probe,
+ .driver = {
+ .name = "cpcap-led",
+ .of_match_table = cpcap_led_of_match,
+ },
+};
+module_platform_driver(cpcap_led_driver);
+
+MODULE_DESCRIPTION("CPCAP LED driver");
+MODULE_AUTHOR("Sebastian Reichel <sre@kernel.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index 066fc7590729..e753ba93ba1e 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -77,7 +77,7 @@ static int gpio_blink_set(struct led_classdev *led_cdev,
static int create_gpio_led(const struct gpio_led *template,
struct gpio_led_data *led_dat, struct device *parent,
- gpio_blink_set_t blink_set)
+ struct device_node *np, gpio_blink_set_t blink_set)
{
int ret, state;
@@ -139,7 +139,7 @@ static int create_gpio_led(const struct gpio_led *template,
if (ret < 0)
return ret;
- return devm_led_classdev_register(parent, &led_dat->cdev);
+ return devm_of_led_classdev_register(parent, np, &led_dat->cdev);
}
struct gpio_leds_priv {
@@ -208,7 +208,7 @@ static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)
if (fwnode_property_present(child, "panic-indicator"))
led.panic_indicator = 1;
- ret = create_gpio_led(&led, led_dat, dev, NULL);
+ ret = create_gpio_led(&led, led_dat, dev, np, NULL);
if (ret < 0) {
fwnode_handle_put(child);
return ERR_PTR(ret);
@@ -242,9 +242,9 @@ static int gpio_led_probe(struct platform_device *pdev)
priv->num_leds = pdata->num_leds;
for (i = 0; i < priv->num_leds; i++) {
- ret = create_gpio_led(&pdata->leds[i],
- &priv->leds[i],
- &pdev->dev, pdata->gpio_blink_set);
+ ret = create_gpio_led(&pdata->leds[i], &priv->leds[i],
+ &pdev->dev, NULL,
+ pdata->gpio_blink_set);
if (ret < 0)
return ret;
}
diff --git a/drivers/leds/leds-lp3952.c b/drivers/leds/leds-lp3952.c
index 4847e89883a7..847f7f282126 100644
--- a/drivers/leds/leds-lp3952.c
+++ b/drivers/leds/leds-lp3952.c
@@ -10,7 +10,6 @@
*
*/
-#include <linux/acpi.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
@@ -103,10 +102,11 @@ static int lp3952_get_label(struct device *dev, const char *label, char *dest)
const char *str;
ret = device_property_read_string(dev, label, &str);
- if (!ret)
- strncpy(dest, str, LP3952_LABEL_MAX_LEN);
+ if (ret)
+ return ret;
- return ret;
+ strncpy(dest, str, LP3952_LABEL_MAX_LEN);
+ return 0;
}
static int lp3952_register_led_classdev(struct lp3952_led_array *priv)
@@ -276,19 +276,9 @@ static const struct i2c_device_id lp3952_id[] = {
};
MODULE_DEVICE_TABLE(i2c, lp3952_id);
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id lp3952_acpi_match[] = {
- {"TXNW3952", 0},
- {}
-};
-
-MODULE_DEVICE_TABLE(acpi, lp3952_acpi_match);
-#endif
-
static struct i2c_driver lp3952_i2c_driver = {
.driver = {
.name = LP3952_NAME,
- .acpi_match_table = ACPI_PTR(lp3952_acpi_match),
},
.probe = lp3952_probe,
.remove = lp3952_remove,
diff --git a/drivers/leds/leds-mt6323.c b/drivers/leds/leds-mt6323.c
new file mode 100644
index 000000000000..8893c74e9a1f
--- /dev/null
+++ b/drivers/leds/leds-mt6323.c
@@ -0,0 +1,502 @@
+/*
+ * LED driver for Mediatek MT6323 PMIC
+ *
+ * Copyright (C) 2017 Sean Wang <sean.wang@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/leds.h>
+#include <linux/mfd/mt6323/registers.h>
+#include <linux/mfd/mt6397/core.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+/*
+ * Register field for MT6323_TOP_CKPDN0 to enable
+ * 32K clock common for LED device.
+ */
+#define MT6323_RG_DRV_32K_CK_PDN BIT(11)
+#define MT6323_RG_DRV_32K_CK_PDN_MASK BIT(11)
+
+/*
+ * Register field for MT6323_TOP_CKPDN2 to enable
+ * individual clock for LED device.
+ */
+#define MT6323_RG_ISINK_CK_PDN(i) BIT(i)
+#define MT6323_RG_ISINK_CK_PDN_MASK(i) BIT(i)
+
+/*
+ * Register field for MT6323_TOP_CKCON1 to select
+ * clock source.
+ */
+#define MT6323_RG_ISINK_CK_SEL_MASK(i) (BIT(10) << (i))
+
+/*
+ * Register for MT6323_ISINK_CON0 to setup the
+ * duty cycle of the blink.
+ */
+#define MT6323_ISINK_CON0(i) (MT6323_ISINK0_CON0 + 0x8 * (i))
+#define MT6323_ISINK_DIM_DUTY_MASK (0x1f << 8)
+#define MT6323_ISINK_DIM_DUTY(i) (((i) << 8) & \
+ MT6323_ISINK_DIM_DUTY_MASK)
+
+/* Register to setup the period of the blink. */
+#define MT6323_ISINK_CON1(i) (MT6323_ISINK0_CON1 + 0x8 * (i))
+#define MT6323_ISINK_DIM_FSEL_MASK (0xffff)
+#define MT6323_ISINK_DIM_FSEL(i) ((i) & MT6323_ISINK_DIM_FSEL_MASK)
+
+/* Register to control the brightness. */
+#define MT6323_ISINK_CON2(i) (MT6323_ISINK0_CON2 + 0x8 * (i))
+#define MT6323_ISINK_CH_STEP_SHIFT 12
+#define MT6323_ISINK_CH_STEP_MASK (0x7 << 12)
+#define MT6323_ISINK_CH_STEP(i) (((i) << 12) & \
+ MT6323_ISINK_CH_STEP_MASK)
+#define MT6323_ISINK_SFSTR0_TC_MASK (0x3 << 1)
+#define MT6323_ISINK_SFSTR0_TC(i) (((i) << 1) & \
+ MT6323_ISINK_SFSTR0_TC_MASK)
+#define MT6323_ISINK_SFSTR0_EN_MASK BIT(0)
+#define MT6323_ISINK_SFSTR0_EN BIT(0)
+
+/* Register to LED channel enablement. */
+#define MT6323_ISINK_CH_EN_MASK(i) BIT(i)
+#define MT6323_ISINK_CH_EN(i) BIT(i)
+
+#define MT6323_MAX_PERIOD 10000
+#define MT6323_MAX_LEDS 4
+#define MT6323_MAX_BRIGHTNESS 6
+#define MT6323_UNIT_DUTY 3125
+#define MT6323_CAL_HW_DUTY(o, p) DIV_ROUND_CLOSEST((o) * 100000ul,\
+ (p) * MT6323_UNIT_DUTY)
+
+struct mt6323_leds;
+
+/**
+ * struct mt6323_led - state container for the LED device
+ * @id: the identifier in MT6323 LED device
+ * @parent: the pointer to MT6323 LED controller
+ * @cdev: LED class device for this LED device
+ * @current_brightness: current state of the LED device
+ */
+struct mt6323_led {
+ int id;
+ struct mt6323_leds *parent;
+ struct led_classdev cdev;
+ enum led_brightness current_brightness;
+};
+
+/**
+ * struct mt6323_leds - state container for holding LED controller
+ * of the driver
+ * @dev: the device pointer
+ * @hw: the underlying hardware providing shared
+ * bus for the register operations
+ * @lock: the lock among process context
+ * @led: the array that contains the state of individual
+ * LED device
+ */
+struct mt6323_leds {
+ struct device *dev;
+ struct mt6397_chip *hw;
+ /* protect among process context */
+ struct mutex lock;
+ struct mt6323_led *led[MT6323_MAX_LEDS];
+};
+
+static int mt6323_led_hw_brightness(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev);
+ struct mt6323_leds *leds = led->parent;
+ struct regmap *regmap = leds->hw->regmap;
+ u32 con2_mask = 0, con2_val = 0;
+ int ret;
+
+ /*
+ * Setup current output for the corresponding
+ * brightness level.
+ */
+ con2_mask |= MT6323_ISINK_CH_STEP_MASK |
+ MT6323_ISINK_SFSTR0_TC_MASK |
+ MT6323_ISINK_SFSTR0_EN_MASK;
+ con2_val |= MT6323_ISINK_CH_STEP(brightness - 1) |
+ MT6323_ISINK_SFSTR0_TC(2) |
+ MT6323_ISINK_SFSTR0_EN;
+
+ ret = regmap_update_bits(regmap, MT6323_ISINK_CON2(led->id),
+ con2_mask, con2_val);
+ return ret;
+}
+
+static int mt6323_led_hw_off(struct led_classdev *cdev)
+{
+ struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev);
+ struct mt6323_leds *leds = led->parent;
+ struct regmap *regmap = leds->hw->regmap;
+ unsigned int status;
+ int ret;
+
+ status = MT6323_ISINK_CH_EN(led->id);
+ ret = regmap_update_bits(regmap, MT6323_ISINK_EN_CTRL,
+ MT6323_ISINK_CH_EN_MASK(led->id), ~status);
+ if (ret < 0)
+ return ret;
+
+ usleep_range(100, 300);
+ ret = regmap_update_bits(regmap, MT6323_TOP_CKPDN2,
+ MT6323_RG_ISINK_CK_PDN_MASK(led->id),
+ MT6323_RG_ISINK_CK_PDN(led->id));
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static enum led_brightness
+mt6323_get_led_hw_brightness(struct led_classdev *cdev)
+{
+ struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev);
+ struct mt6323_leds *leds = led->parent;
+ struct regmap *regmap = leds->hw->regmap;
+ unsigned int status;
+ int ret;
+
+ ret = regmap_read(regmap, MT6323_TOP_CKPDN2, &status);
+ if (ret < 0)
+ return ret;
+
+ if (status & MT6323_RG_ISINK_CK_PDN_MASK(led->id))
+ return 0;
+
+ ret = regmap_read(regmap, MT6323_ISINK_EN_CTRL, &status);
+ if (ret < 0)
+ return ret;
+
+ if (!(status & MT6323_ISINK_CH_EN(led->id)))
+ return 0;
+
+ ret = regmap_read(regmap, MT6323_ISINK_CON2(led->id), &status);
+ if (ret < 0)
+ return ret;
+
+ return ((status & MT6323_ISINK_CH_STEP_MASK)
+ >> MT6323_ISINK_CH_STEP_SHIFT) + 1;
+}
+
+static int mt6323_led_hw_on(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev);
+ struct mt6323_leds *leds = led->parent;
+ struct regmap *regmap = leds->hw->regmap;
+ unsigned int status;
+ int ret;
+
+ /*
+ * Setup required clock source, enable the corresponding
+ * clock and channel and let work with continuous blink as
+ * the default.
+ */
+ ret = regmap_update_bits(regmap, MT6323_TOP_CKCON1,
+ MT6323_RG_ISINK_CK_SEL_MASK(led->id), 0);
+ if (ret < 0)
+ return ret;
+
+ status = MT6323_RG_ISINK_CK_PDN(led->id);
+ ret = regmap_update_bits(regmap, MT6323_TOP_CKPDN2,
+ MT6323_RG_ISINK_CK_PDN_MASK(led->id),
+ ~status);
+ if (ret < 0)
+ return ret;
+
+ usleep_range(100, 300);
+
+ ret = regmap_update_bits(regmap, MT6323_ISINK_EN_CTRL,
+ MT6323_ISINK_CH_EN_MASK(led->id),
+ MT6323_ISINK_CH_EN(led->id));
+ if (ret < 0)
+ return ret;
+
+ ret = mt6323_led_hw_brightness(cdev, brightness);
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_update_bits(regmap, MT6323_ISINK_CON0(led->id),
+ MT6323_ISINK_DIM_DUTY_MASK,
+ MT6323_ISINK_DIM_DUTY(31));
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_update_bits(regmap, MT6323_ISINK_CON1(led->id),
+ MT6323_ISINK_DIM_FSEL_MASK,
+ MT6323_ISINK_DIM_FSEL(1000));
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int mt6323_led_set_blink(struct led_classdev *cdev,
+ unsigned long *delay_on,
+ unsigned long *delay_off)
+{
+ struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev);
+ struct mt6323_leds *leds = led->parent;
+ struct regmap *regmap = leds->hw->regmap;
+ unsigned long period;
+ u8 duty_hw;
+ int ret;
+
+ /*
+ * Units are in ms, if over the hardware able
+ * to support, fallback into software blink
+ */
+ period = *delay_on + *delay_off;
+
+ if (period > MT6323_MAX_PERIOD)
+ return -EINVAL;
+
+ /*
+ * LED subsystem requires a default user
+ * friendly blink pattern for the LED so using
+ * 1Hz duty cycle 50% here if without specific
+ * value delay_on and delay off being assigned.
+ */
+ if (!*delay_on && !*delay_off) {
+ *delay_on = 500;
+ *delay_off = 500;
+ }
+
+ /*
+ * Calculate duty_hw based on the percentage of period during
+ * which the led is ON.
+ */
+ duty_hw = MT6323_CAL_HW_DUTY(*delay_on, period);
+
+ /* hardware doesn't support zero duty cycle. */
+ if (!duty_hw)
+ return -EINVAL;
+
+ mutex_lock(&leds->lock);
+ /*
+ * Set max_brightness as the software blink behavior
+ * when no blink brightness.
+ */
+ if (!led->current_brightness) {
+ ret = mt6323_led_hw_on(cdev, cdev->max_brightness);
+ if (ret < 0)
+ goto out;
+ led->current_brightness = cdev->max_brightness;
+ }
+
+ ret = regmap_update_bits(regmap, MT6323_ISINK_CON0(led->id),
+ MT6323_ISINK_DIM_DUTY_MASK,
+ MT6323_ISINK_DIM_DUTY(duty_hw - 1));
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_update_bits(regmap, MT6323_ISINK_CON1(led->id),
+ MT6323_ISINK_DIM_FSEL_MASK,
+ MT6323_ISINK_DIM_FSEL(period - 1));
+out:
+ mutex_unlock(&leds->lock);
+
+ return ret;
+}
+
+static int mt6323_led_set_brightness(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev);
+ struct mt6323_leds *leds = led->parent;
+ int ret;
+
+ mutex_lock(&leds->lock);
+
+ if (!led->current_brightness && brightness) {
+ ret = mt6323_led_hw_on(cdev, brightness);
+ if (ret < 0)
+ goto out;
+ } else if (brightness) {
+ ret = mt6323_led_hw_brightness(cdev, brightness);
+ if (ret < 0)
+ goto out;
+ } else {
+ ret = mt6323_led_hw_off(cdev);
+ if (ret < 0)
+ goto out;
+ }
+
+ led->current_brightness = brightness;
+out:
+ mutex_unlock(&leds->lock);
+
+ return ret;
+}
+
+static int mt6323_led_set_dt_default(struct led_classdev *cdev,
+ struct device_node *np)
+{
+ struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev);
+ const char *state;
+ int ret = 0;
+
+ led->cdev.name = of_get_property(np, "label", NULL) ? : np->name;
+ led->cdev.default_trigger = of_get_property(np,
+ "linux,default-trigger",
+ NULL);
+
+ state = of_get_property(np, "default-state", NULL);
+ if (state) {
+ if (!strcmp(state, "keep")) {
+ ret = mt6323_get_led_hw_brightness(cdev);
+ if (ret < 0)
+ return ret;
+ led->current_brightness = ret;
+ ret = 0;
+ } else if (!strcmp(state, "on")) {
+ ret =
+ mt6323_led_set_brightness(cdev, cdev->max_brightness);
+ } else {
+ ret = mt6323_led_set_brightness(cdev, LED_OFF);
+ }
+ }
+
+ return ret;
+}
+
+static int mt6323_led_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = pdev->dev.of_node;
+ struct device_node *child;
+ struct mt6397_chip *hw = dev_get_drvdata(pdev->dev.parent);
+ struct mt6323_leds *leds;
+ struct mt6323_led *led;
+ int ret;
+ unsigned int status;
+ u32 reg;
+
+ leds = devm_kzalloc(dev, sizeof(*leds), GFP_KERNEL);
+ if (!leds)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, leds);
+ leds->dev = dev;
+
+ /*
+ * leds->hw points to the underlying bus for the register
+ * controlled.
+ */
+ leds->hw = hw;
+ mutex_init(&leds->lock);
+
+ status = MT6323_RG_DRV_32K_CK_PDN;
+ ret = regmap_update_bits(leds->hw->regmap, MT6323_TOP_CKPDN0,
+ MT6323_RG_DRV_32K_CK_PDN_MASK, ~status);
+ if (ret < 0) {
+ dev_err(leds->dev,
+ "Failed to update MT6323_TOP_CKPDN0 Register\n");
+ return ret;
+ }
+
+ for_each_available_child_of_node(np, child) {
+ ret = of_property_read_u32(child, "reg", &reg);
+ if (ret) {
+ dev_err(dev, "Failed to read led 'reg' property\n");
+ goto put_child_node;
+ }
+
+ if (reg >= MT6323_MAX_LEDS || leds->led[reg]) {
+ dev_err(dev, "Invalid led reg %u\n", reg);
+ ret = -EINVAL;
+ goto put_child_node;
+ }
+
+ led = devm_kzalloc(dev, sizeof(*led), GFP_KERNEL);
+ if (!led) {
+ ret = -ENOMEM;
+ goto put_child_node;
+ }
+
+ leds->led[reg] = led;
+ leds->led[reg]->id = reg;
+ leds->led[reg]->cdev.max_brightness = MT6323_MAX_BRIGHTNESS;
+ leds->led[reg]->cdev.brightness_set_blocking =
+ mt6323_led_set_brightness;
+ leds->led[reg]->cdev.blink_set = mt6323_led_set_blink;
+ leds->led[reg]->cdev.brightness_get =
+ mt6323_get_led_hw_brightness;
+ leds->led[reg]->parent = leds;
+
+ ret = mt6323_led_set_dt_default(&leds->led[reg]->cdev, child);
+ if (ret < 0) {
+ dev_err(leds->dev,
+ "Failed to LED set default from devicetree\n");
+ goto put_child_node;
+ }
+
+ ret = devm_led_classdev_register(dev, &leds->led[reg]->cdev);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to register LED: %d\n",
+ ret);
+ goto put_child_node;
+ }
+ leds->led[reg]->cdev.dev->of_node = child;
+ }
+
+ return 0;
+
+put_child_node:
+ of_node_put(child);
+ return ret;
+}
+
+static int mt6323_led_remove(struct platform_device *pdev)
+{
+ struct mt6323_leds *leds = platform_get_drvdata(pdev);
+ int i;
+
+ /* Turn the LEDs off on driver removal. */
+ for (i = 0 ; leds->led[i] ; i++)
+ mt6323_led_hw_off(&leds->led[i]->cdev);
+
+ regmap_update_bits(leds->hw->regmap, MT6323_TOP_CKPDN0,
+ MT6323_RG_DRV_32K_CK_PDN_MASK,
+ MT6323_RG_DRV_32K_CK_PDN);
+
+ mutex_destroy(&leds->lock);
+
+ return 0;
+}
+
+static const struct of_device_id mt6323_led_dt_match[] = {
+ { .compatible = "mediatek,mt6323-led" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mt6323_led_dt_match);
+
+static struct platform_driver mt6323_led_driver = {
+ .probe = mt6323_led_probe,
+ .remove = mt6323_led_remove,
+ .driver = {
+ .name = "mt6323-led",
+ .of_match_table = mt6323_led_dt_match,
+ },
+};
+
+module_platform_driver(mt6323_led_driver);
+
+MODULE_DESCRIPTION("LED driver for Mediatek MT6323 PMIC");
+MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c
index 06e63106ae1e..7fea18b0c15d 100644
--- a/drivers/leds/leds-pca9532.c
+++ b/drivers/leds/leds-pca9532.c
@@ -254,6 +254,21 @@ static void pca9532_input_work(struct work_struct *work)
mutex_unlock(&data->update_lock);
}
+static enum pca9532_state pca9532_getled(struct pca9532_led *led)
+{
+ struct i2c_client *client = led->client;
+ struct pca9532_data *data = i2c_get_clientdata(client);
+ u8 maxleds = data->chip_info->num_leds;
+ char reg;
+ enum pca9532_state ret;
+
+ mutex_lock(&data->update_lock);
+ reg = i2c_smbus_read_byte_data(client, LED_REG(maxleds, led->id));
+ ret = reg >> LED_NUM(led->id)/2;
+ mutex_unlock(&data->update_lock);
+ return ret;
+}
+
#ifdef CONFIG_LEDS_PCA9532_GPIO
static int pca9532_gpio_request_pin(struct gpio_chip *gc, unsigned offset)
{
@@ -366,7 +381,10 @@ static int pca9532_configure(struct i2c_client *client,
gpios++;
break;
case PCA9532_TYPE_LED:
- led->state = pled->state;
+ if (pled->state == PCA9532_KEEP)
+ led->state = pca9532_getled(led);
+ else
+ led->state = pled->state;
led->name = pled->name;
led->ldev.name = led->name;
led->ldev.default_trigger = pled->default_trigger;
@@ -456,6 +474,7 @@ pca9532_of_populate_pdata(struct device *dev, struct device_node *np)
const struct of_device_id *match;
int devid, maxleds;
int i = 0;
+ const char *state;
match = of_match_device(of_pca9532_leds_match, dev);
if (!match)
@@ -475,6 +494,12 @@ pca9532_of_populate_pdata(struct device *dev, struct device_node *np)
of_property_read_u32(child, "type", &pdata->leds[i].type);
of_property_read_string(child, "linux,default-trigger",
&pdata->leds[i].default_trigger);
+ if (!of_property_read_string(child, "default-state", &state)) {
+ if (!strcmp(state, "on"))
+ pdata->leds[i].state = PCA9532_ON;
+ else if (!strcmp(state, "keep"))
+ pdata->leds[i].state = PCA9532_KEEP;
+ }
if (++i >= maxleds) {
of_node_put(child);
break;
diff --git a/drivers/leds/trigger/ledtrig-cpu.c b/drivers/leds/trigger/ledtrig-cpu.c
index a41896468cb3..66a626091936 100644
--- a/drivers/leds/trigger/ledtrig-cpu.c
+++ b/drivers/leds/trigger/ledtrig-cpu.c
@@ -31,12 +31,16 @@
#define MAX_NAME_LEN 8
struct led_trigger_cpu {
+ bool is_active;
char name[MAX_NAME_LEN];
struct led_trigger *_trig;
};
static DEFINE_PER_CPU(struct led_trigger_cpu, cpu_trig);
+static struct led_trigger *trig_cpu_all;
+static atomic_t num_active_cpus = ATOMIC_INIT(0);
+
/**
* ledtrig_cpu - emit a CPU event as a trigger
* @evt: CPU event to be emitted
@@ -47,26 +51,46 @@ static DEFINE_PER_CPU(struct led_trigger_cpu, cpu_trig);
void ledtrig_cpu(enum cpu_led_event ledevt)
{
struct led_trigger_cpu *trig = this_cpu_ptr(&cpu_trig);
+ bool is_active = trig->is_active;
/* Locate the correct CPU LED */
switch (ledevt) {
case CPU_LED_IDLE_END:
case CPU_LED_START:
/* Will turn the LED on, max brightness */
- led_trigger_event(trig->_trig, LED_FULL);
+ is_active = true;
break;
case CPU_LED_IDLE_START:
case CPU_LED_STOP:
case CPU_LED_HALTED:
/* Will turn the LED off */
- led_trigger_event(trig->_trig, LED_OFF);
+ is_active = false;
break;
default:
/* Will leave the LED as it is */
break;
}
+
+ if (is_active != trig->is_active) {
+ unsigned int active_cpus;
+ unsigned int total_cpus;
+
+ /* Update trigger state */
+ trig->is_active = is_active;
+ atomic_add(is_active ? 1 : -1, &num_active_cpus);
+ active_cpus = atomic_read(&num_active_cpus);
+ total_cpus = num_present_cpus();
+
+ led_trigger_event(trig->_trig,
+ is_active ? LED_FULL : LED_OFF);
+
+
+ led_trigger_event(trig_cpu_all,
+ DIV_ROUND_UP(LED_FULL * active_cpus, total_cpus));
+
+ }
}
EXPORT_SYMBOL(ledtrig_cpu);
@@ -113,6 +137,11 @@ static int __init ledtrig_cpu_init(void)
BUILD_BUG_ON(CONFIG_NR_CPUS > 9999);
/*
+ * Registering a trigger for all CPUs.
+ */
+ led_trigger_register_simple("cpu", &trig_cpu_all);
+
+ /*
* Registering CPU led trigger for each CPU core here
* ignores CPU hotplug, but after this CPU hotplug works
* fine with this trigger.
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 4bc88eb52712..e1bffc9bb194 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -141,6 +141,14 @@ config DELL_WMI_AIO
To compile this driver as a module, choose M here: the module will
be called dell-wmi-aio.
+config DELL_WMI_LED
+ tristate "External LED on Dell Business Netbooks"
+ depends on LEDS_CLASS
+ depends on ACPI_WMI
+ help
+ This adds support for the Latitude 2100 and similar
+ notebooks that have an external LED.
+
config DELL_SMO8800
tristate "Dell Latitude freefall driver (ACPI SMO88XX)"
depends on ACPI
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 299d0f9e40f7..776b3a7a4984 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_DELL_SMBIOS) += dell-smbios.o
obj-$(CONFIG_DELL_LAPTOP) += dell-laptop.o
obj-$(CONFIG_DELL_WMI) += dell-wmi.o
obj-$(CONFIG_DELL_WMI_AIO) += dell-wmi-aio.o
+obj-$(CONFIG_DELL_WMI_LED) += dell-wmi-led.o
obj-$(CONFIG_DELL_SMO8800) += dell-smo8800.o
obj-$(CONFIG_DELL_RBTN) += dell-rbtn.o
obj-$(CONFIG_ACER_WMI) += acer-wmi.o
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index f57dd282a002..2e237bad4995 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -29,6 +29,7 @@
#include <linux/mm.h>
#include <linux/i8042.h>
#include <linux/debugfs.h>
+#include <linux/dell-led.h>
#include <linux/seq_file.h>
#include <acpi/video.h>
#include "dell-rbtn.h"
@@ -42,6 +43,8 @@
#define KBD_LED_AUTO_50_TOKEN 0x02EB
#define KBD_LED_AUTO_75_TOKEN 0x02EC
#define KBD_LED_AUTO_100_TOKEN 0x02F6
+#define GLOBAL_MIC_MUTE_ENABLE 0x0364
+#define GLOBAL_MIC_MUTE_DISABLE 0x0365
struct quirk_entry {
u8 touchpad_led;
@@ -1978,6 +1981,31 @@ static void kbd_led_exit(void)
led_classdev_unregister(&kbd_led);
}
+int dell_micmute_led_set(int state)
+{
+ struct calling_interface_buffer *buffer;
+ struct calling_interface_token *token;
+
+ if (state == 0)
+ token = dell_smbios_find_token(GLOBAL_MIC_MUTE_DISABLE);
+ else if (state == 1)
+ token = dell_smbios_find_token(GLOBAL_MIC_MUTE_ENABLE);
+ else
+ return -EINVAL;
+
+ if (!token)
+ return -ENODEV;
+
+ buffer = dell_smbios_get_buffer();
+ buffer->input[0] = token->location;
+ buffer->input[1] = token->value;
+ dell_smbios_send_request(1, 0);
+ dell_smbios_release_buffer();
+
+ return state;
+}
+EXPORT_SYMBOL_GPL(dell_micmute_led_set);
+
static int __init dell_init(void)
{
struct calling_interface_buffer *buffer;
diff --git a/drivers/leds/dell-led.c b/drivers/platform/x86/dell-wmi-led.c
index b3d6e9c15cf9..a0c7e99530ef 100644
--- a/drivers/leds/dell-led.c
+++ b/drivers/platform/x86/dell-wmi-led.c
@@ -1,6 +1,4 @@
/*
- * dell_led.c - Dell LED Driver
- *
* Copyright (C) 2010 Dell Inc.
* Louis Davis <louis_davis@dell.com>
* Jim Dailey <jim_dailey@dell.com>
@@ -15,16 +13,12 @@
#include <linux/leds.h>
#include <linux/slab.h>
#include <linux/module.h>
-#include <linux/dmi.h>
-#include <linux/dell-led.h>
-#include "../platform/x86/dell-smbios.h"
MODULE_AUTHOR("Louis Davis/Jim Dailey");
MODULE_DESCRIPTION("Dell LED Control Driver");
MODULE_LICENSE("GPL");
#define DELL_LED_BIOS_GUID "F6E4FE6E-909D-47cb-8BAB-C9F6F2F8D396"
-#define DELL_APP_GUID "A80593CE-A997-11DA-B012-B622A1EF5492"
MODULE_ALIAS("wmi:" DELL_LED_BIOS_GUID);
/* Error Result Codes: */
@@ -43,53 +37,6 @@ MODULE_ALIAS("wmi:" DELL_LED_BIOS_GUID);
#define CMD_LED_OFF 17
#define CMD_LED_BLINK 18
-#define GLOBAL_MIC_MUTE_ENABLE 0x364
-#define GLOBAL_MIC_MUTE_DISABLE 0x365
-
-static int dell_micmute_led_set(int state)
-{
- struct calling_interface_buffer *buffer;
- struct calling_interface_token *token;
-
- if (!wmi_has_guid(DELL_APP_GUID))
- return -ENODEV;
-
- if (state == 0)
- token = dell_smbios_find_token(GLOBAL_MIC_MUTE_DISABLE);
- else if (state == 1)
- token = dell_smbios_find_token(GLOBAL_MIC_MUTE_ENABLE);
- else
- return -EINVAL;
-
- if (!token)
- return -ENODEV;
-
- buffer = dell_smbios_get_buffer();
- buffer->input[0] = token->location;
- buffer->input[1] = token->value;
- dell_smbios_send_request(1, 0);
- dell_smbios_release_buffer();
-
- return state;
-}
-
-int dell_app_wmi_led_set(int whichled, int on)
-{
- int state = 0;
-
- switch (whichled) {
- case DELL_LED_MICMUTE:
- state = dell_micmute_led_set(on);
- break;
- default:
- pr_warn("led type %x is not supported\n", whichled);
- break;
- }
-
- return state;
-}
-EXPORT_SYMBOL_GPL(dell_app_wmi_led_set);
-
struct bios_args {
unsigned char length;
unsigned char result_code;
@@ -99,37 +46,29 @@ struct bios_args {
unsigned char off_time;
};
-static int dell_led_perform_fn(u8 length,
- u8 result_code,
- u8 device_id,
- u8 command,
- u8 on_time,
- u8 off_time)
+static int dell_led_perform_fn(u8 length, u8 result_code, u8 device_id,
+ u8 command, u8 on_time, u8 off_time)
{
- struct bios_args *bios_return;
- u8 return_code;
- union acpi_object *obj;
struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct bios_args *bios_return;
struct acpi_buffer input;
+ union acpi_object *obj;
acpi_status status;
+ u8 return_code;
- struct bios_args args;
- args.length = length;
- args.result_code = result_code;
- args.device_id = device_id;
- args.command = command;
- args.on_time = on_time;
- args.off_time = off_time;
+ struct bios_args args = {
+ .length = length,
+ .result_code = result_code,
+ .device_id = device_id,
+ .command = command,
+ .on_time = on_time,
+ .off_time = off_time
+ };
input.length = sizeof(struct bios_args);
input.pointer = &args;
- status = wmi_evaluate_method(DELL_LED_BIOS_GUID,
- 1,
- 1,
- &input,
- &output);
-
+ status = wmi_evaluate_method(DELL_LED_BIOS_GUID, 1, 1, &input, &output);
if (ACPI_FAILURE(status))
return status;
@@ -137,7 +76,7 @@ static int dell_led_perform_fn(u8 length,
if (!obj)
return -EINVAL;
- else if (obj->type != ACPI_TYPE_BUFFER) {
+ if (obj->type != ACPI_TYPE_BUFFER) {
kfree(obj);
return -EINVAL;
}
@@ -170,8 +109,7 @@ static int led_off(void)
0); /* not used */
}
-static int led_blink(unsigned char on_eighths,
- unsigned char off_eighths)
+static int led_blink(unsigned char on_eighths, unsigned char off_eighths)
{
return dell_led_perform_fn(5, /* Length of command */
INTERFACE_ERROR, /* Init to INTERFACE_ERROR */
@@ -182,7 +120,7 @@ static int led_blink(unsigned char on_eighths,
}
static void dell_led_set(struct led_classdev *led_cdev,
- enum led_brightness value)
+ enum led_brightness value)
{
if (value == LED_OFF)
led_off();
@@ -191,27 +129,22 @@ static void dell_led_set(struct led_classdev *led_cdev,
}
static int dell_led_blink(struct led_classdev *led_cdev,
- unsigned long *delay_on,
- unsigned long *delay_off)
+ unsigned long *delay_on, unsigned long *delay_off)
{
unsigned long on_eighths;
unsigned long off_eighths;
- /* The Dell LED delay is based on 125ms intervals.
- Need to round up to next interval. */
+ /*
+ * The Dell LED delay is based on 125ms intervals.
+ * Need to round up to next interval.
+ */
- on_eighths = (*delay_on + 124) / 125;
- if (0 == on_eighths)
- on_eighths = 1;
- if (on_eighths > 255)
- on_eighths = 255;
+ on_eighths = DIV_ROUND_UP(*delay_on, 125);
+ on_eighths = clamp_t(unsigned long, on_eighths, 1, 255);
*delay_on = on_eighths * 125;
- off_eighths = (*delay_off + 124) / 125;
- if (0 == off_eighths)
- off_eighths = 1;
- if (off_eighths > 255)
- off_eighths = 255;
+ off_eighths = DIV_ROUND_UP(*delay_off, 125);
+ off_eighths = clamp_t(unsigned long, off_eighths, 1, 255);
*delay_off = off_eighths * 125;
led_blink(on_eighths, off_eighths);
@@ -232,29 +165,21 @@ static int __init dell_led_init(void)
{
int error = 0;
- if (!wmi_has_guid(DELL_LED_BIOS_GUID) && !wmi_has_guid(DELL_APP_GUID))
+ if (!wmi_has_guid(DELL_LED_BIOS_GUID))
return -ENODEV;
- if (wmi_has_guid(DELL_LED_BIOS_GUID)) {
- error = led_off();
- if (error != 0)
- return -ENODEV;
-
- error = led_classdev_register(NULL, &dell_led);
- }
+ error = led_off();
+ if (error != 0)
+ return -ENODEV;
- return error;
+ return led_classdev_register(NULL, &dell_led);
}
static void __exit dell_led_exit(void)
{
- int error = 0;
+ led_classdev_unregister(&dell_led);
- if (wmi_has_guid(DELL_LED_BIOS_GUID)) {
- error = led_off();
- if (error == 0)
- led_classdev_unregister(&dell_led);
- }
+ led_off();
}
module_init(dell_led_init);
diff --git a/include/linux/dell-led.h b/include/linux/dell-led.h
index 7009b8bec77b..3f033c48071e 100644
--- a/include/linux/dell-led.h
+++ b/include/linux/dell-led.h
@@ -1,10 +1,6 @@
#ifndef __DELL_LED_H__
#define __DELL_LED_H__
-enum {
- DELL_LED_MICMUTE,
-};
-
-int dell_app_wmi_led_set(int whichled, int on);
+int dell_micmute_led_set(int on);
#endif
diff --git a/include/linux/leds-pca9532.h b/include/linux/leds-pca9532.h
index d215b4561180..5e240b2b4d58 100644
--- a/include/linux/leds-pca9532.h
+++ b/include/linux/leds-pca9532.h
@@ -22,7 +22,8 @@ enum pca9532_state {
PCA9532_OFF = 0x0,
PCA9532_ON = 0x1,
PCA9532_PWM0 = 0x2,
- PCA9532_PWM1 = 0x3
+ PCA9532_PWM1 = 0x3,
+ PCA9532_KEEP = 0xff,
};
struct pca9532_led {
@@ -44,4 +45,3 @@ struct pca9532_platform_data {
};
#endif /* __LINUX_PCA9532_H */
-
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 38c0bd7ca107..64c56d454f7d 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -122,10 +122,16 @@ struct led_classdev {
struct mutex led_access;
};
-extern int led_classdev_register(struct device *parent,
- struct led_classdev *led_cdev);
-extern int devm_led_classdev_register(struct device *parent,
- struct led_classdev *led_cdev);
+extern int of_led_classdev_register(struct device *parent,
+ struct device_node *np,
+ struct led_classdev *led_cdev);
+#define led_classdev_register(parent, led_cdev) \
+ of_led_classdev_register(parent, NULL, led_cdev)
+extern int devm_of_led_classdev_register(struct device *parent,
+ struct device_node *np,
+ struct led_classdev *led_cdev);
+#define devm_led_classdev_register(parent, led_cdev) \
+ devm_of_led_classdev_register(parent, NULL, led_cdev)
extern void led_classdev_unregister(struct led_classdev *led_cdev);
extern void devm_led_classdev_unregister(struct device *parent,
struct led_classdev *led_cdev);
diff --git a/include/linux/mfd/motorola-cpcap.h b/include/linux/mfd/motorola-cpcap.h
index b4031c2b2214..53758a7d7c32 100644
--- a/include/linux/mfd/motorola-cpcap.h
+++ b/include/linux/mfd/motorola-cpcap.h
@@ -14,6 +14,9 @@
* published by the Free Software Foundation.
*/
+#include <linux/device.h>
+#include <linux/regmap.h>
+
#define CPCAP_VENDOR_ST 0
#define CPCAP_VENDOR_TI 1
diff --git a/sound/pci/hda/dell_wmi_helper.c b/sound/pci/hda/dell_wmi_helper.c
index 19d41da79f93..7efa7bd7acb2 100644
--- a/sound/pci/hda/dell_wmi_helper.c
+++ b/sound/pci/hda/dell_wmi_helper.c
@@ -2,11 +2,11 @@
* to be included from codec driver
*/
-#if IS_ENABLED(CONFIG_LEDS_DELL_NETBOOKS)
+#if IS_ENABLED(CONFIG_DELL_LAPTOP)
#include <linux/dell-led.h>
static int dell_led_value;
-static int (*dell_led_set_func)(int, int);
+static int (*dell_micmute_led_set_func)(int);
static void (*dell_old_cap_hook)(struct hda_codec *,
struct snd_kcontrol *,
struct snd_ctl_elem_value *);
@@ -18,7 +18,7 @@ static void update_dell_wmi_micmute_led(struct hda_codec *codec,
if (dell_old_cap_hook)
dell_old_cap_hook(codec, kcontrol, ucontrol);
- if (!ucontrol || !dell_led_set_func)
+ if (!ucontrol || !dell_micmute_led_set_func)
return;
if (strcmp("Capture Switch", ucontrol->id.name) == 0 && ucontrol->id.index == 0) {
/* TODO: How do I verify if it's a mono or stereo here? */
@@ -26,8 +26,8 @@ static void update_dell_wmi_micmute_led(struct hda_codec *codec,
if (val == dell_led_value)
return;
dell_led_value = val;
- if (dell_led_set_func)
- dell_led_set_func(DELL_LED_MICMUTE, dell_led_value);
+ if (dell_micmute_led_set_func)
+ dell_micmute_led_set_func(dell_led_value);
}
}
@@ -39,15 +39,15 @@ static void alc_fixup_dell_wmi(struct hda_codec *codec,
bool removefunc = false;
if (action == HDA_FIXUP_ACT_PROBE) {
- if (!dell_led_set_func)
- dell_led_set_func = symbol_request(dell_app_wmi_led_set);
- if (!dell_led_set_func) {
- codec_warn(codec, "Failed to find dell wmi symbol dell_app_wmi_led_set\n");
+ if (!dell_micmute_led_set_func)
+ dell_micmute_led_set_func = symbol_request(dell_micmute_led_set);
+ if (!dell_micmute_led_set_func) {
+ codec_warn(codec, "Failed to find dell wmi symbol dell_micmute_led_set\n");
return;
}
removefunc = true;
- if (dell_led_set_func(DELL_LED_MICMUTE, false) >= 0) {
+ if (dell_micmute_led_set_func(false) >= 0) {
dell_led_value = 0;
if (spec->gen.num_adc_nids > 1 && !spec->gen.dyn_adc_switch)
codec_dbg(codec, "Skipping micmute LED control due to several ADCs");
@@ -60,17 +60,17 @@ static void alc_fixup_dell_wmi(struct hda_codec *codec,
}
- if (dell_led_set_func && (action == HDA_FIXUP_ACT_FREE || removefunc)) {
- symbol_put(dell_app_wmi_led_set);
- dell_led_set_func = NULL;
+ if (dell_micmute_led_set_func && (action == HDA_FIXUP_ACT_FREE || removefunc)) {
+ symbol_put(dell_micmute_led_set);
+ dell_micmute_led_set_func = NULL;
dell_old_cap_hook = NULL;
}
}
-#else /* CONFIG_LEDS_DELL_NETBOOKS */
+#else /* CONFIG_DELL_LAPTOP */
static void alc_fixup_dell_wmi(struct hda_codec *codec,
const struct hda_fixup *fix, int action)
{
}
-#endif /* CONFIG_LEDS_DELL_NETBOOKS */
+#endif /* CONFIG_DELL_LAPTOP */
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-16 10:12:21 +0300