This patch series add MT6360 LED support contains driver and binding document
Gene Chen (5)
leds: flash: Add flash registration with undefined CONFIG_LEDS_CLASS_FLASH
leds: flash: Fix multicolor no-ops registration by return 0
dt-bindings: leds: Add LED_COLOR_ID_MOONLIGHT definitions
dt-bindings: leds: Add bindings for MT6360 LED
leds: mt6360: Add LED driver for MT6360
Documentation/devicetree/bindings/leds/leds-mt6360.yaml | 159 +++
drivers/leds/Kconfig | 13
drivers/leds/Makefile | 1
drivers/leds/leds-mt6360.c | 827 ++++++++++++++++
include/dt-bindings/leds/common.h | 1
include/linux/led-class-flash.h | 42
include/linux/led-class-multicolor.h | 42
7 files changed, 1049 insertions(+), 36 deletions(-)
changelogs between v1 & v2
- add led driver with mfd
changelogs between v2 & v3
- independent add led driver
- add dt-binding document
- refactor macros definition for easy to debug
- parse device tree by fwnode
- use devm*ext to register led class device
changelogs between v3 & v4
- fix binding document description
- use GENMASK and add unit postfix to definition
- isink register led class device
changelogs between v4 & v5
- change rgb isink to multicolor control
- add binding reference to mfd yaml
changelogs between v5 & v6
- Use DT to decide RGB LED is multicolor device or indicator device only
changelogs between v6 & v7
- Add binding multicolor device sample code
- Add flash ops mutex lock
- Remove V4L2 init with indicator device
changelogs between v7 & v8
- Add mutex for led fault get ops
- Fix flash and multicolor no-ops return 0
- Add LED_FUNCTION_MOONLIGHT
changelogs between v8 & v9
- reuse api in flash and multicolor header
changelogs between v9 & v10
- add comment for reuse registration functions in flash and multicolor
changelogs between v10 & v11
- match dt-binding reg property comment to the functionality name
- remove exist patch in linux-next
- dicide multicolor channel by color definitiion
From: Gene Chen <[email protected]>
Add flash registration with undefined CONFIG_LEDS_CLASS_FLASH,
and move the same registration functions outside of #ifdef block.
Signed-off-by: Gene Chen <[email protected]>
Acked-by: Jacek Anaszewski <[email protected]>
---
include/linux/led-class-flash.h | 42 ++++++++++++++++++++++++++++++++---------
1 file changed, 33 insertions(+), 9 deletions(-)
diff --git a/include/linux/led-class-flash.h b/include/linux/led-class-flash.h
index 21a3358..612b4ca 100644
--- a/include/linux/led-class-flash.h
+++ b/include/linux/led-class-flash.h
@@ -85,6 +85,7 @@ static inline struct led_classdev_flash *lcdev_to_flcdev(
return container_of(lcdev, struct led_classdev_flash, led_cdev);
}
+#if IS_ENABLED(CONFIG_LEDS_CLASS_FLASH)
/**
* led_classdev_flash_register_ext - register a new object of LED class with
* init data and with support for flash LEDs
@@ -98,12 +99,6 @@ int led_classdev_flash_register_ext(struct device *parent,
struct led_classdev_flash *fled_cdev,
struct led_init_data *init_data);
-static inline int led_classdev_flash_register(struct device *parent,
- struct led_classdev_flash *fled_cdev)
-{
- return led_classdev_flash_register_ext(parent, fled_cdev, NULL);
-}
-
/**
* led_classdev_flash_unregister - unregisters an object of led_classdev class
* with support for flash LEDs
@@ -118,15 +113,44 @@ int devm_led_classdev_flash_register_ext(struct device *parent,
struct led_init_data *init_data);
+void devm_led_classdev_flash_unregister(struct device *parent,
+ struct led_classdev_flash *fled_cdev);
+
+#else
+
+static inline int led_classdev_flash_register_ext(struct device *parent,
+ struct led_classdev_flash *fled_cdev,
+ struct led_init_data *init_data)
+{
+ return 0;
+}
+
+static inline void led_classdev_flash_unregister(struct led_classdev_flash *fled_cdev) {};
+static inline int devm_led_classdev_flash_register_ext(struct device *parent,
+ struct led_classdev_flash *fled_cdev,
+ struct led_init_data *init_data)
+{
+ return 0;
+}
+
+static inline void devm_led_classdev_flash_unregister(struct device *parent,
+ struct led_classdev_flash *fled_cdev)
+{};
+
+#endif /* IS_ENABLED(CONFIG_LEDS_CLASS_FLASH) */
+
+static inline int led_classdev_flash_register(struct device *parent,
+ struct led_classdev_flash *fled_cdev)
+{
+ return led_classdev_flash_register_ext(parent, fled_cdev, NULL);
+}
+
static inline int devm_led_classdev_flash_register(struct device *parent,
struct led_classdev_flash *fled_cdev)
{
return devm_led_classdev_flash_register_ext(parent, fled_cdev, NULL);
}
-void devm_led_classdev_flash_unregister(struct device *parent,
- struct led_classdev_flash *fled_cdev);
-
/**
* led_set_flash_strobe - setup flash strobe
* @fled_cdev: the flash LED to set strobe on
--
2.7.4
From: Gene Chen <[email protected]>
Fix multicolor no-ops registration by return 0,
and move the same registration functions outside of #ifdef block.
Signed-off-by: Gene Chen <[email protected]>
Acked-by: Jacek Anaszewski <[email protected]>
---
include/linux/led-class-multicolor.h | 42 +++++++++++++-----------------------
1 file changed, 15 insertions(+), 27 deletions(-)
diff --git a/include/linux/led-class-multicolor.h b/include/linux/led-class-multicolor.h
index 5116f9a..210d57b 100644
--- a/include/linux/led-class-multicolor.h
+++ b/include/linux/led-class-multicolor.h
@@ -44,12 +44,6 @@ int led_classdev_multicolor_register_ext(struct device *parent,
struct led_classdev_mc *mcled_cdev,
struct led_init_data *init_data);
-static inline int led_classdev_multicolor_register(struct device *parent,
- struct led_classdev_mc *mcled_cdev)
-{
- return led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL);
-}
-
/**
* led_classdev_multicolor_unregister - unregisters an object of led_classdev
* class with support for multicolor LEDs
@@ -68,13 +62,6 @@ int devm_led_classdev_multicolor_register_ext(struct device *parent,
struct led_classdev_mc *mcled_cdev,
struct led_init_data *init_data);
-static inline int devm_led_classdev_multicolor_register(struct device *parent,
- struct led_classdev_mc *mcled_cdev)
-{
- return devm_led_classdev_multicolor_register_ext(parent, mcled_cdev,
- NULL);
-}
-
void devm_led_classdev_multicolor_unregister(struct device *parent,
struct led_classdev_mc *mcled_cdev);
#else
@@ -83,27 +70,33 @@ static inline int led_classdev_multicolor_register_ext(struct device *parent,
struct led_classdev_mc *mcled_cdev,
struct led_init_data *init_data)
{
- return -EINVAL;
-}
-
-static inline int led_classdev_multicolor_register(struct device *parent,
- struct led_classdev_mc *mcled_cdev)
-{
- return led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL);
+ return 0;
}
static inline void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev) {};
static inline int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev,
enum led_brightness brightness)
{
- return -EINVAL;
+ return 0;
}
static inline int devm_led_classdev_multicolor_register_ext(struct device *parent,
struct led_classdev_mc *mcled_cdev,
struct led_init_data *init_data)
{
- return -EINVAL;
+ return 0;
+}
+
+static inline void devm_led_classdev_multicolor_unregister(struct device *parent,
+ struct led_classdev_mc *mcled_cdev)
+{};
+
+#endif /* IS_ENABLED(CONFIG_LEDS_CLASS_MULTICOLOR) */
+
+static inline int led_classdev_multicolor_register(struct device *parent,
+ struct led_classdev_mc *mcled_cdev)
+{
+ return led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL);
}
static inline int devm_led_classdev_multicolor_register(struct device *parent,
@@ -113,9 +106,4 @@ static inline int devm_led_classdev_multicolor_register(struct device *parent,
NULL);
}
-static inline void devm_led_classdev_multicolor_unregister(struct device *parent,
- struct led_classdev_mc *mcled_cdev)
-{};
-
-#endif /* IS_ENABLED(CONFIG_LEDS_CLASS_MULTICOLOR) */
#endif /* _LINUX_MULTICOLOR_LEDS_H_INCLUDED */
--
2.7.4
From: Gene Chen <[email protected]>
Add bindings document for LED support on MT6360 PMIC
Signed-off-by: Gene Chen <[email protected]>
---
.../devicetree/bindings/leds/leds-mt6360.yaml | 159 +++++++++++++++++++++
1 file changed, 159 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/leds-mt6360.yaml
diff --git a/Documentation/devicetree/bindings/leds/leds-mt6360.yaml b/Documentation/devicetree/bindings/leds/leds-mt6360.yaml
new file mode 100644
index 0000000..73c67b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-mt6360.yaml
@@ -0,0 +1,159 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-mt6360.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LED driver for MT6360 PMIC from MediaTek Integrated.
+
+maintainers:
+ - Gene Chen <[email protected]>
+
+description: |
+ This module is part of the MT6360 MFD device.
+ see Documentation/devicetree/bindings/mfd/mt6360.yaml
+ Add MT6360 LED driver include 2-channel Flash LED with torch/strobe mode,
+ and 4-channel RGB LED support Register/Flash/Breath Mode
+
+properties:
+ compatible:
+ const: mediatek,mt6360-led
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "(^led@[0-5]$|led)":
+ type: object
+ $ref: common.yaml#
+ description:
+ Properties for a single LED.
+
+ properties:
+ reg:
+ description: Index of the LED.
+ enum:
+ - 0 # LED output ISINK1
+ - 1 # LED output ISINK2
+ - 2 # LED output ISINK3
+ - 3 # LED output ISINKML
+ - 4 # LED output FLASH1
+ - 5 # LED output FLASH2
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/leds/common.h>
+ led-controller {
+ compatible = "mediatek,mt6360-led";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ multi-led@0 {
+ reg = <0>;
+ function = LED_FUNCTION_INDICATOR;
+ color = <LED_COLOR_ID_RGB>;
+ led-max-microamp = <24000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ led@0 {
+ reg = <0>;
+ color = <LED_COLOR_ID_RED>;
+ };
+ led@1 {
+ reg = <1>;
+ color = <LED_COLOR_ID_GREEN>;
+ };
+ led@2 {
+ reg = <2>;
+ color = <LED_COLOR_ID_BLUE>;
+ };
+ };
+ led@3 {
+ reg = <3>;
+ function = LED_FUNCTION_MOONLIGHT;
+ color = <LED_COLOR_ID_WHITE>;
+ led-max-microamp = <150000>;
+ };
+ led@4 {
+ reg = <4>;
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
+ function-enumerator = <1>;
+ led-max-microamp = <200000>;
+ flash-max-microamp = <500000>;
+ flash-max-timeout-us = <1024000>;
+ };
+ led@5 {
+ reg = <5>;
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
+ function-enumerator = <2>;
+ led-max-microamp = <200000>;
+ flash-max-microamp = <500000>;
+ flash-max-timeout-us = <1024000>;
+ };
+ };
+
+ - |
+
+ led-controller {
+ compatible = "mediatek,mt6360-led";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@0 {
+ reg = <0>;
+ function = LED_FUNCTION_INDICATOR;
+ color = <LED_COLOR_ID_RED>;
+ led-max-microamp = <24000>;
+ };
+ led@1 {
+ reg = <1>;
+ function = LED_FUNCTION_INDICATOR;
+ color = <LED_COLOR_ID_GREEN>;
+ led-max-microamp = <24000>;
+ };
+ led@2 {
+ reg = <2>;
+ function = LED_FUNCTION_INDICATOR;
+ color = <LED_COLOR_ID_BLUE>;
+ led-max-microamp = <24000>;
+ };
+ led@3 {
+ reg = <3>;
+ function = LED_FUNCTION_MOONLIGHT;
+ color = <LED_COLOR_ID_WHITE>;
+ led-max-microamp = <150000>;
+ };
+ led@4 {
+ reg = <4>;
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
+ function-enumerator = <1>;
+ led-max-microamp = <200000>;
+ flash-max-microamp = <500000>;
+ flash-max-timeout-us = <1024000>;
+ };
+ led@5 {
+ reg = <5>;
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
+ function-enumerator = <2>;
+ led-max-microamp = <200000>;
+ flash-max-microamp = <500000>;
+ flash-max-timeout-us = <1024000>;
+ };
+ };
+...
--
2.7.4
From: Gene Chen <[email protected]>
Add MT6360 LED driver include 2-channel Flash LED with torch/strobe mode,
3-channel RGB LED support Register/Flash/Breath Mode, and 1-channel for
moonlight LED.
Signed-off-by: Gene Chen <[email protected]>
---
drivers/leds/Kconfig | 13 +
drivers/leds/Makefile | 1 +
drivers/leds/leds-mt6360.c | 827 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 841 insertions(+)
create mode 100644 drivers/leds/leds-mt6360.c
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 1c181df..4f533bc 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -271,6 +271,19 @@ config LEDS_MT6323
This option enables support for on-chip LED drivers found on
Mediatek MT6323 PMIC.
+config LEDS_MT6360
+ tristate "LED Support for Mediatek MT6360 PMIC"
+ depends on LEDS_CLASS && OF
+ depends on LEDS_CLASS_FLASH || !LEDS_CLASS_FLASH
+ depends on LEDS_CLASS_MULTICOLOR || !LEDS_CLASS_MULTICOLOR
+ depends on V4L2_FLASH_LED_CLASS || !V4L2_FLASH_LED_CLASS
+ depends on MFD_MT6360
+ help
+ This option enables support for dual Flash LED drivers found on
+ Mediatek MT6360 PMIC.
+ Independent current sources supply for each flash LED support torch
+ and strobe mode.
+
config LEDS_S3C24XX
tristate "LED Support for Samsung S3C24XX GPIO LEDs"
depends on LEDS_CLASS
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index c2c7d7a..5596427 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -66,6 +66,7 @@ obj-$(CONFIG_LEDS_MIKROTIK_RB532) += leds-rb532.o
obj-$(CONFIG_LEDS_MLXCPLD) += leds-mlxcpld.o
obj-$(CONFIG_LEDS_MLXREG) += leds-mlxreg.o
obj-$(CONFIG_LEDS_MT6323) += leds-mt6323.o
+obj-$(CONFIG_LEDS_MT6360) += leds-mt6360.o
obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o
obj-$(CONFIG_LEDS_NETXBIG) += leds-netxbig.o
obj-$(CONFIG_LEDS_NIC78BX) += leds-nic78bx.o
diff --git a/drivers/leds/leds-mt6360.c b/drivers/leds/leds-mt6360.c
new file mode 100644
index 0000000..42d18a8
--- /dev/null
+++ b/drivers/leds/leds-mt6360.c
@@ -0,0 +1,827 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/led-class-flash.h>
+#include <linux/led-class-multicolor.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/regmap.h>
+#include <media/v4l2-flash-led-class.h>
+
+enum {
+ MT6360_LED_ISNK1 = 0,
+ MT6360_LED_ISNK2,
+ MT6360_LED_ISNK3,
+ MT6360_LED_ISNKML,
+ MT6360_LED_FLASH1,
+ MT6360_LED_FLASH2,
+ MT6360_MAX_LEDS
+};
+
+#define MT6360_REG_RGBEN 0x380
+#define MT6360_REG_ISNK(_led_no) (0x381 + (_led_no))
+#define MT6360_ISNK_ENMASK(_led_no) BIT(7 - (_led_no))
+#define MT6360_ISNK_MASK GENMASK(4, 0)
+#define MT6360_CHRINDSEL_MASK BIT(3)
+
+/* Virtual definition for multicolor */
+#define MT6360_VIRTUAL_MULTICOLOR (MT6360_MAX_LEDS + 1)
+#define MULTICOLOR_NUM_CHANNELS 3
+
+#define MT6360_REG_FLEDEN 0x37E
+#define MT6360_REG_STRBTO 0x373
+#define MT6360_REG_FLEDBASE(_id) (0x372 + 4 * (_id - MT6360_LED_FLASH1))
+#define MT6360_REG_FLEDISTRB(_id) (MT6360_REG_FLEDBASE(_id) + 2)
+#define MT6360_REG_FLEDITOR(_id) (MT6360_REG_FLEDBASE(_id) + 3)
+#define MT6360_REG_CHGSTAT2 0x3E1
+#define MT6360_REG_FLEDSTAT1 0x3E9
+#define MT6360_ITORCH_MASK GENMASK(4, 0)
+#define MT6360_ISTROBE_MASK GENMASK(6, 0)
+#define MT6360_STRBTO_MASK GENMASK(6, 0)
+#define MT6360_TORCHEN_MASK BIT(3)
+#define MT6360_STROBEN_MASK BIT(2)
+#define MT6360_FLCSEN_MASK(_id) BIT(MT6360_LED_FLASH2 - _id)
+#define MT6360_FLEDCHGVINOVP_MASK BIT(3)
+#define MT6360_FLED1STRBTO_MASK BIT(11)
+#define MT6360_FLED2STRBTO_MASK BIT(10)
+#define MT6360_FLED1STRB_MASK BIT(9)
+#define MT6360_FLED2STRB_MASK BIT(8)
+#define MT6360_FLED1SHORT_MASK BIT(7)
+#define MT6360_FLED2SHORT_MASK BIT(6)
+#define MT6360_FLEDLVF_MASK BIT(3)
+
+#define MT6360_ISNKRGB_STEPUA 2000
+#define MT6360_ISNKRGB_MAXUA 24000
+#define MT6360_ISNKML_STEPUA 5000
+#define MT6360_ISNKML_MAXUA 150000
+
+#define MT6360_ITORCH_MINUA 25000
+#define MT6360_ITORCH_STEPUA 12500
+#define MT6360_ITORCH_MAXUA 400000
+#define MT6360_ISTRB_MINUA 50000
+#define MT6360_ISTRB_STEPUA 12500
+#define MT6360_ISTRB_MAXUA 1500000
+#define MT6360_STRBTO_MINUS 64000
+#define MT6360_STRBTO_STEPUS 32000
+#define MT6360_STRBTO_MAXUS 2432000
+
+#define STATE_OFF 0
+#define STATE_KEEP 1
+#define STATE_ON 2
+
+struct mt6360_led {
+ union {
+ struct led_classdev isnk;
+ struct led_classdev_mc mc;
+ struct led_classdev_flash flash;
+ };
+ struct v4l2_flash *v4l2_flash;
+ struct mt6360_priv *priv;
+ u32 led_no;
+ u32 default_state;
+};
+
+struct mt6360_priv {
+ struct device *dev;
+ struct regmap *regmap;
+ struct mutex lock;
+ unsigned int fled_strobe_used;
+ unsigned int fled_torch_used;
+ unsigned int leds_active;
+ unsigned int leds_count;
+ struct mt6360_led leds[];
+};
+
+static int mt6360_mc_brightness_set(struct led_classdev *lcdev, enum led_brightness level)
+{
+ struct led_classdev_mc *mccdev = lcdev_to_mccdev(lcdev);
+ struct mt6360_led *led = container_of(mccdev, struct mt6360_led, mc);
+ struct mt6360_priv *priv = led->priv;
+ u32 real_bright, enable_mask = 0, enable = 0;
+ int i, ret;
+
+ mutex_lock(&priv->lock);
+
+ led_mc_calc_color_components(mccdev, level);
+
+ for (i = 0; i < mccdev->num_colors; i++) {
+ struct mc_subled *subled = mccdev->subled_info + i;
+
+ real_bright = min(lcdev->max_brightness, subled->brightness);
+ ret = regmap_update_bits(priv->regmap, MT6360_REG_ISNK(i), MT6360_ISNK_MASK,
+ real_bright);
+ if (ret)
+ goto out;
+
+ enable_mask |= MT6360_ISNK_ENMASK(subled->channel);
+ if (real_bright)
+ enable |= MT6360_ISNK_ENMASK(subled->channel);
+ }
+
+ ret = regmap_update_bits(priv->regmap, MT6360_REG_RGBEN, enable_mask, enable);
+
+out:
+ mutex_unlock(&priv->lock);
+ return ret;
+}
+
+static int mt6360_isnk_brightness_set(struct led_classdev *lcdev, enum led_brightness level)
+{
+ struct mt6360_led *led = container_of(lcdev, struct mt6360_led, isnk);
+ struct mt6360_priv *priv = led->priv;
+ u32 enable_mask = MT6360_ISNK_ENMASK(led->led_no);
+ u32 val = level ? MT6360_ISNK_ENMASK(led->led_no) : 0;
+ int ret;
+
+ mutex_lock(&priv->lock);
+
+ ret = regmap_update_bits(priv->regmap, MT6360_REG_ISNK(led->led_no), MT6360_ISNK_MASK,
+ level);
+ if (ret)
+ goto out;
+
+ ret = regmap_update_bits(priv->regmap, MT6360_REG_RGBEN, enable_mask, val);
+
+out:
+ mutex_unlock(&priv->lock);
+ return ret;
+}
+
+static int mt6360_torch_brightness_set(struct led_classdev *lcdev, enum led_brightness level)
+{
+ struct mt6360_led *led = container_of(lcdev, struct mt6360_led, flash.led_cdev);
+ struct mt6360_priv *priv = led->priv;
+ u32 enable_mask = MT6360_TORCHEN_MASK | MT6360_FLCSEN_MASK(led->led_no);
+ u32 val = level ? MT6360_FLCSEN_MASK(led->led_no) : 0;
+ u32 prev = priv->fled_torch_used, curr;
+ int ret;
+
+ mutex_lock(&priv->lock);
+
+ /* Only one set of flash control logic, use the flag to avoid strobe is currently used */
+ if (priv->fled_strobe_used) {
+ dev_warn(lcdev->dev, "Please disable strobe first [%d]\n", priv->fled_strobe_used);
+ ret = -EBUSY;
+ goto unlock;
+ }
+
+ if (level)
+ curr = prev | BIT(led->led_no);
+ else
+ curr = prev & ~BIT(led->led_no);
+
+ if (curr)
+ val |= MT6360_TORCHEN_MASK;
+
+ if (level) {
+ ret = regmap_update_bits(priv->regmap, MT6360_REG_FLEDITOR(led->led_no),
+ MT6360_ITORCH_MASK, level - 1);
+ if (ret)
+ goto unlock;
+ }
+
+ ret = regmap_update_bits(priv->regmap, MT6360_REG_FLEDEN, enable_mask, val);
+ if (ret)
+ goto unlock;
+
+ priv->fled_torch_used = curr;
+
+unlock:
+ mutex_unlock(&priv->lock);
+ return ret;
+}
+
+static int mt6360_flash_brightness_set(struct led_classdev_flash *fl_cdev, u32 brightness)
+{
+ /*
+ * Due to the current spike when turning on flash, let brightness to be kept by framework.
+ * This empty function is used to prevent led_classdev_flash register ops check failure.
+ */
+ return 0;
+}
+
+static int _mt6360_flash_brightness_set(struct led_classdev_flash *fl_cdev, u32 brightness)
+{
+ struct mt6360_led *led = container_of(fl_cdev, struct mt6360_led, flash);
+ struct mt6360_priv *priv = led->priv;
+ struct led_flash_setting *s = &fl_cdev->brightness;
+ u32 val = (brightness - s->min) / s->step;
+
+ return regmap_update_bits(priv->regmap, MT6360_REG_FLEDISTRB(led->led_no),
+ MT6360_ISTROBE_MASK, val);
+}
+
+static int mt6360_strobe_set(struct led_classdev_flash *fl_cdev, bool state)
+{
+ struct mt6360_led *led = container_of(fl_cdev, struct mt6360_led, flash);
+ struct mt6360_priv *priv = led->priv;
+ struct led_classdev *lcdev = &fl_cdev->led_cdev;
+ struct led_flash_setting *s = &fl_cdev->brightness;
+ u32 enable_mask = MT6360_STROBEN_MASK | MT6360_FLCSEN_MASK(led->led_no);
+ u32 val = state ? MT6360_FLCSEN_MASK(led->led_no) : 0;
+ u32 prev = priv->fled_strobe_used, curr;
+ int ret;
+
+ mutex_lock(&priv->lock);
+
+ /* Only one set of flash control logic, use the flag to avoid torch is currently used */
+ if (priv->fled_torch_used) {
+ dev_warn(lcdev->dev, "Please disable torch first [0x%x]\n", priv->fled_torch_used);
+ ret = -EBUSY;
+ goto unlock;
+ }
+
+ if (state)
+ curr = prev | BIT(led->led_no);
+ else
+ curr = prev & ~BIT(led->led_no);
+
+ if (curr)
+ val |= MT6360_STROBEN_MASK;
+
+ ret = regmap_update_bits(priv->regmap, MT6360_REG_FLEDEN, enable_mask, val);
+ if (ret) {
+ dev_err(lcdev->dev, "[%d] control current source %d fail\n", led->led_no, state);
+ goto unlock;
+ }
+
+ /*
+ * If the flash need to be on, config the flash current ramping up to the setting value
+ * Else, always recover back to the minimum one
+ */
+ ret = _mt6360_flash_brightness_set(fl_cdev, state ? s->val : s->min);
+ if (ret)
+ goto unlock;
+
+ /* For the flash turn on/off, HW rampping up/down time is 5ms/500us, respectively */
+ if (!prev && curr)
+ usleep_range(5000, 6000);
+ else if (prev && !curr)
+ udelay(500);
+
+ priv->fled_strobe_used = curr;
+
+unlock:
+ mutex_unlock(&priv->lock);
+ return ret;
+}
+
+static int mt6360_strobe_get(struct led_classdev_flash *fl_cdev, bool *state)
+{
+ struct mt6360_led *led = container_of(fl_cdev, struct mt6360_led, flash);
+ struct mt6360_priv *priv = led->priv;
+
+ mutex_lock(&priv->lock);
+ *state = !!(priv->fled_strobe_used & BIT(led->led_no));
+ mutex_unlock(&priv->lock);
+
+ return 0;
+}
+
+static int mt6360_timeout_set(struct led_classdev_flash *fl_cdev, u32 timeout)
+{
+ struct mt6360_led *led = container_of(fl_cdev, struct mt6360_led, flash);
+ struct mt6360_priv *priv = led->priv;
+ struct led_flash_setting *s = &fl_cdev->timeout;
+ u32 val = (timeout - s->min) / s->step;
+ int ret;
+
+ mutex_lock(&priv->lock);
+ ret = regmap_update_bits(priv->regmap, MT6360_REG_STRBTO, MT6360_STRBTO_MASK, val);
+ mutex_unlock(&priv->lock);
+
+ return ret;
+}
+
+static int mt6360_fault_get(struct led_classdev_flash *fl_cdev, u32 *fault)
+{
+ struct mt6360_led *led = container_of(fl_cdev, struct mt6360_led, flash);
+ struct mt6360_priv *priv = led->priv;
+ u16 fled_stat;
+ unsigned int chg_stat, strobe_timeout_mask, fled_short_mask;
+ u32 rfault = 0;
+ int ret;
+
+ mutex_lock(&priv->lock);
+ ret = regmap_read(priv->regmap, MT6360_REG_CHGSTAT2, &chg_stat);
+ if (ret)
+ goto unlock;
+
+ ret = regmap_raw_read(priv->regmap, MT6360_REG_FLEDSTAT1, &fled_stat, sizeof(fled_stat));
+ if (ret)
+ goto unlock;
+
+ if (led->led_no == MT6360_LED_FLASH1) {
+ strobe_timeout_mask = MT6360_FLED1STRBTO_MASK;
+ fled_short_mask = MT6360_FLED1SHORT_MASK;
+ } else {
+ strobe_timeout_mask = MT6360_FLED2STRBTO_MASK;
+ fled_short_mask = MT6360_FLED2SHORT_MASK;
+ }
+
+ if (chg_stat & MT6360_FLEDCHGVINOVP_MASK)
+ rfault |= LED_FAULT_INPUT_VOLTAGE;
+
+ if (fled_stat & strobe_timeout_mask)
+ rfault |= LED_FAULT_TIMEOUT;
+
+ if (fled_stat & fled_short_mask)
+ rfault |= LED_FAULT_SHORT_CIRCUIT;
+
+ if (fled_stat & MT6360_FLEDLVF_MASK)
+ rfault |= LED_FAULT_UNDER_VOLTAGE;
+
+ *fault = rfault;
+unlock:
+ mutex_unlock(&priv->lock);
+ return ret;
+}
+
+static const struct led_flash_ops mt6360_flash_ops = {
+ .flash_brightness_set = mt6360_flash_brightness_set,
+ .strobe_set = mt6360_strobe_set,
+ .strobe_get = mt6360_strobe_get,
+ .timeout_set = mt6360_timeout_set,
+ .fault_get = mt6360_fault_get,
+};
+
+static int mt6360_isnk_init_default_state(struct mt6360_led *led)
+{
+ struct mt6360_priv *priv = led->priv;
+ unsigned int regval;
+ u32 level;
+ int ret;
+
+ ret = regmap_read(priv->regmap, MT6360_REG_ISNK(led->led_no), ®val);
+ if (ret)
+ return ret;
+ level = regval & MT6360_ISNK_MASK;
+
+ ret = regmap_read(priv->regmap, MT6360_REG_RGBEN, ®val);
+ if (ret)
+ return ret;
+
+ if (!(regval & MT6360_ISNK_ENMASK(led->led_no)))
+ level = LED_OFF;
+
+ switch (led->default_state) {
+ case STATE_ON:
+ led->isnk.brightness = led->isnk.max_brightness;
+ break;
+ case STATE_KEEP:
+ led->isnk.brightness = min(level, led->isnk.max_brightness);
+ break;
+ default:
+ led->isnk.brightness = LED_OFF;
+ }
+
+ return mt6360_isnk_brightness_set(&led->isnk, led->isnk.brightness);
+}
+
+static int mt6360_flash_init_default_state(struct mt6360_led *led)
+{
+ struct led_classdev_flash *flash = &led->flash;
+ struct mt6360_priv *priv = led->priv;
+ u32 enable_mask = MT6360_TORCHEN_MASK | MT6360_FLCSEN_MASK(led->led_no);
+ u32 level;
+ unsigned int regval;
+ int ret;
+
+ ret = regmap_read(priv->regmap, MT6360_REG_FLEDITOR(led->led_no), ®val);
+ if (ret)
+ return ret;
+ level = regval & MT6360_ITORCH_MASK;
+
+ ret = regmap_read(priv->regmap, MT6360_REG_FLEDEN, ®val);
+ if (ret)
+ return ret;
+
+ if ((regval & enable_mask) == enable_mask)
+ level += 1;
+ else
+ level = LED_OFF;
+
+ switch (led->default_state) {
+ case STATE_ON:
+ flash->led_cdev.brightness = flash->led_cdev.max_brightness;
+ break;
+ case STATE_KEEP:
+ flash->led_cdev.brightness = min(level, flash->led_cdev.max_brightness);
+ break;
+ default:
+ flash->led_cdev.brightness = LED_OFF;
+ }
+
+ return mt6360_torch_brightness_set(&flash->led_cdev, flash->led_cdev.brightness);
+}
+
+#if IS_ENABLED(CONFIG_V4L2_FLASH_LED_CLASS)
+static int mt6360_flash_external_strobe_set(struct v4l2_flash *v4l2_flash, bool enable)
+{
+ struct led_classdev_flash *flash = v4l2_flash->fled_cdev;
+ struct mt6360_led *led = container_of(flash, struct mt6360_led, flash);
+ struct mt6360_priv *priv = led->priv;
+ u32 mask = MT6360_FLCSEN_MASK(led->led_no);
+ u32 val = enable ? mask : 0;
+ int ret;
+
+ mutex_lock(&priv->lock);
+
+ ret = regmap_update_bits(priv->regmap, MT6360_REG_FLEDEN, mask, val);
+ if (ret)
+ goto unlock;
+
+ if (enable)
+ priv->fled_strobe_used |= BIT(led->led_no);
+ else
+ priv->fled_strobe_used &= ~BIT(led->led_no);
+
+unlock:
+ mutex_unlock(&priv->lock);
+ return ret;
+}
+
+static const struct v4l2_flash_ops v4l2_flash_ops = {
+ .external_strobe_set = mt6360_flash_external_strobe_set,
+};
+
+static void mt6360_init_v4l2_flash_config(struct mt6360_led *led, struct v4l2_flash_config *config)
+{
+ struct led_classdev *lcdev;
+ struct led_flash_setting *s = &config->intensity;
+
+ lcdev = &led->flash.led_cdev;
+
+ s->min = MT6360_ITORCH_MINUA;
+ s->step = MT6360_ITORCH_STEPUA;
+ s->val = s->max = s->min + (lcdev->max_brightness - 1) * s->step;
+
+ config->has_external_strobe = 1;
+ strscpy(config->dev_name, lcdev->dev->kobj.name, sizeof(config->dev_name));
+
+ config->flash_faults = LED_FAULT_SHORT_CIRCUIT | LED_FAULT_TIMEOUT |
+ LED_FAULT_INPUT_VOLTAGE | LED_FAULT_UNDER_VOLTAGE;
+}
+#else
+static const struct v4l2_flash_ops v4l2_flash_ops;
+static void mt6360_init_v4l2_flash_config(struct mt6360_led *led, struct v4l2_flash_config *config)
+{
+}
+#endif
+
+static int mt6360_led_register(struct device *parent, struct mt6360_led *led,
+ struct led_init_data *init_data)
+{
+ struct mt6360_priv *priv = led->priv;
+ struct v4l2_flash_config v4l2_config = {0};
+ int ret;
+
+ if ((led->led_no == MT6360_LED_ISNK1 || led->led_no == MT6360_VIRTUAL_MULTICOLOR) &&
+ (priv->leds_active & BIT(MT6360_LED_ISNK1))) {
+ /* Change isink1 to SW control mode, disconnect it with charger state */
+ ret = regmap_update_bits(priv->regmap, MT6360_REG_RGBEN, MT6360_CHRINDSEL_MASK,
+ MT6360_CHRINDSEL_MASK);
+ if (ret) {
+ dev_err(parent, "Failed to config ISNK1 to SW mode\n");
+ return ret;
+ }
+ }
+
+ switch (led->led_no) {
+ case MT6360_VIRTUAL_MULTICOLOR:
+ ret = mt6360_mc_brightness_set(&led->mc.led_cdev, LED_OFF);
+ if (ret) {
+ dev_err(parent, "Failed to init multicolor brightness\n");
+ return ret;
+ }
+
+ ret = devm_led_classdev_multicolor_register_ext(parent, &led->mc, init_data);
+ if (ret) {
+ dev_err(parent, "Couldn't register multicolor\n");
+ return ret;
+ }
+ break;
+ case MT6360_LED_ISNK1 ... MT6360_LED_ISNKML:
+ ret = mt6360_isnk_init_default_state(led);
+ if (ret) {
+ dev_err(parent, "Failed to init %d isnk state\n", led->led_no);
+ return ret;
+ }
+
+ ret = devm_led_classdev_register_ext(parent, &led->isnk, init_data);
+ if (ret) {
+ dev_err(parent, "Couldn't register isink %d\n", led->led_no);
+ return ret;
+ }
+ break;
+ default:
+ ret = mt6360_flash_init_default_state(led);
+ if (ret) {
+ dev_err(parent, "Failed to init %d flash state\n", led->led_no);
+ return ret;
+ }
+
+ ret = devm_led_classdev_flash_register_ext(parent, &led->flash, init_data);
+ if (ret) {
+ dev_err(parent, "Couldn't register flash %d\n", led->led_no);
+ return ret;
+ }
+
+ mt6360_init_v4l2_flash_config(led, &v4l2_config);
+ led->v4l2_flash = v4l2_flash_init(parent, init_data->fwnode, &led->flash,
+ &v4l2_flash_ops, &v4l2_config);
+ if (IS_ERR(led->v4l2_flash)) {
+ dev_err(parent, "Failed to register %d v4l2 sd\n", led->led_no);
+ return PTR_ERR(led->v4l2_flash);
+ }
+ }
+
+ return 0;
+}
+
+static u32 clamp_align(u32 val, u32 min, u32 max, u32 step)
+{
+ u32 retval;
+
+ retval = clamp_val(val, min, max);
+ if (step > 1)
+ retval = rounddown(retval - min, step) + min;
+
+ return retval;
+}
+
+static int mt6360_init_isnk_properties(struct mt6360_led *led, struct led_init_data *init_data)
+{
+ struct led_classdev *lcdev;
+ struct mt6360_priv *priv = led->priv;
+ struct fwnode_handle *child;
+ u32 step_uA = MT6360_ISNKRGB_STEPUA, max_uA = MT6360_ISNKRGB_MAXUA;
+ u32 val;
+ int num_color = 0, ret;
+
+ if (led->led_no == MT6360_VIRTUAL_MULTICOLOR) {
+ struct mc_subled *sub_led;
+
+ sub_led = devm_kzalloc(priv->dev, sizeof(*sub_led) * MULTICOLOR_NUM_CHANNELS,
+ GFP_KERNEL);
+ if (!sub_led)
+ return -ENOMEM;
+
+ fwnode_for_each_child_node(init_data->fwnode, child) {
+ u32 reg, color;
+
+ ret = fwnode_property_read_u32(child, "reg", ®);
+ if (ret || reg > MT6360_LED_ISNK3 || priv->leds_active & BIT(reg))
+ return -EINVAL;
+
+ ret = fwnode_property_read_u32(child, "color", &color);
+ if (ret) {
+ dev_err(priv->dev, "led %d, no color specified\n", led->led_no);
+ return ret;
+ }
+
+ priv->leds_active |= BIT(reg);
+ sub_led[num_color].color_index = color;
+ sub_led[num_color].channel = reg;
+ num_color++;
+ }
+
+ if (num_color < 2) {
+ dev_err(priv->dev, "Multicolor must include 2 or more led channel\n");
+ return -EINVAL;
+ }
+
+ led->mc.num_colors = num_color;
+ led->mc.subled_info = sub_led;
+
+ lcdev = &led->mc.led_cdev;
+ lcdev->brightness_set_blocking = mt6360_mc_brightness_set;
+ } else {
+ if (led->led_no == MT6360_LED_ISNKML) {
+ step_uA = MT6360_ISNKML_STEPUA;
+ max_uA = MT6360_ISNKML_MAXUA;
+ }
+
+ lcdev = &led->isnk;
+ lcdev->brightness_set_blocking = mt6360_isnk_brightness_set;
+ }
+
+ ret = fwnode_property_read_u32(init_data->fwnode, "led-max-microamp", &val);
+ if (ret) {
+ dev_warn(priv->dev, "Not specified led-max-microamp, config to the minimum\n");
+ val = step_uA;
+ } else
+ val = clamp_align(val, 0, max_uA, step_uA);
+
+ lcdev->max_brightness = val / step_uA;
+
+ fwnode_property_read_string(init_data->fwnode, "linux,default-trigger",
+ &lcdev->default_trigger);
+
+ return 0;
+}
+
+static int mt6360_init_flash_properties(struct mt6360_led *led, struct led_init_data *init_data)
+{
+ struct led_classdev_flash *flash = &led->flash;
+ struct led_classdev *lcdev = &flash->led_cdev;
+ struct mt6360_priv *priv = led->priv;
+ struct led_flash_setting *s;
+ u32 val;
+ int ret;
+
+ ret = fwnode_property_read_u32(init_data->fwnode, "led-max-microamp", &val);
+ if (ret) {
+ dev_warn(priv->dev, "Not specified led-max-microamp, config to the minimum\n");
+ val = MT6360_ITORCH_MINUA;
+ } else
+ val = clamp_align(val, MT6360_ITORCH_MINUA, MT6360_ITORCH_MAXUA,
+ MT6360_ITORCH_STEPUA);
+
+ lcdev->max_brightness = (val - MT6360_ITORCH_MINUA) / MT6360_ITORCH_STEPUA + 1;
+ lcdev->brightness_set_blocking = mt6360_torch_brightness_set;
+ lcdev->flags |= LED_DEV_CAP_FLASH;
+
+ ret = fwnode_property_read_u32(init_data->fwnode, "flash-max-microamp", &val);
+ if (ret) {
+ dev_warn(priv->dev, "Not specified flash-max-microamp, config to the minimum\n");
+ val = MT6360_ISTRB_MINUA;
+ } else
+ val = clamp_align(val, MT6360_ISTRB_MINUA, MT6360_ISTRB_MAXUA, MT6360_ISTRB_STEPUA);
+
+ s = &flash->brightness;
+ s->min = MT6360_ISTRB_MINUA;
+ s->step = MT6360_ISTRB_STEPUA;
+ s->val = s->max = val;
+
+ /* Always configure as min level when off to prevent flash current spike */
+ ret = _mt6360_flash_brightness_set(flash, s->min);
+ if (ret)
+ return ret;
+
+ ret = fwnode_property_read_u32(init_data->fwnode, "flash-max-timeout-us", &val);
+ if (ret) {
+ dev_warn(priv->dev, "Not specified flash-max-timeout-us, config to the minimum\n");
+ val = MT6360_STRBTO_MINUS;
+ } else
+ val = clamp_align(val, MT6360_STRBTO_MINUS, MT6360_STRBTO_MAXUS,
+ MT6360_STRBTO_STEPUS);
+
+ s = &flash->timeout;
+ s->min = MT6360_STRBTO_MINUS;
+ s->step = MT6360_STRBTO_STEPUS;
+ s->val = s->max = val;
+
+ flash->ops = &mt6360_flash_ops;
+
+ return 0;
+}
+
+static int mt6360_init_common_properties(struct mt6360_led *led, struct led_init_data *init_data)
+{
+ const char * const states[] = { "off", "keep", "on" };
+ const char *str;
+ int ret;
+
+ if (!fwnode_property_read_string(init_data->fwnode, "default-state", &str)) {
+ ret = match_string(states, ARRAY_SIZE(states), str);
+ if (ret < 0)
+ ret = STATE_OFF;
+
+ led->default_state = ret;
+ }
+
+ return 0;
+}
+
+static void mt6360_v4l2_flash_release(struct mt6360_priv *priv)
+{
+ int i;
+
+ for (i = 0; i < priv->leds_count; i++) {
+ struct mt6360_led *led = priv->leds + i;
+
+ if (led->v4l2_flash)
+ v4l2_flash_release(led->v4l2_flash);
+ }
+}
+
+static int mt6360_led_probe(struct platform_device *pdev)
+{
+ struct mt6360_priv *priv;
+ struct fwnode_handle *child;
+ size_t count;
+ int i = 0, ret;
+
+ count = device_get_child_node_count(&pdev->dev);
+ if (!count || count > MT6360_MAX_LEDS) {
+ dev_err(&pdev->dev, "No child node or node count over max led number %lu\n", count);
+ return -EINVAL;
+ }
+
+ priv = devm_kzalloc(&pdev->dev, struct_size(priv, leds, count), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->leds_count = count;
+ priv->dev = &pdev->dev;
+ mutex_init(&priv->lock);
+
+ priv->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!priv->regmap) {
+ dev_err(&pdev->dev, "Failed to get parent regmap\n");
+ return -ENODEV;
+ }
+
+ device_for_each_child_node(&pdev->dev, child) {
+ struct mt6360_led *led = priv->leds + i;
+ struct led_init_data init_data = { .fwnode = child, };
+ u32 reg, led_color;
+
+ ret = fwnode_property_read_u32(child, "color", &led_color);
+ if (ret)
+ goto out_flash_release;
+
+ if (led_color == LED_COLOR_ID_RGB || led_color == LED_COLOR_ID_MULTI)
+ reg = MT6360_VIRTUAL_MULTICOLOR;
+ else {
+ ret = fwnode_property_read_u32(child, "reg", ®);
+ if (ret)
+ goto out_flash_release;
+
+ if (reg >= MT6360_MAX_LEDS) {
+ ret = -EINVAL;
+ goto out_flash_release;
+ }
+ }
+
+ if (priv->leds_active & BIT(reg)) {
+ ret = -EINVAL;
+ goto out_flash_release;
+ }
+ priv->leds_active |= BIT(reg);
+
+ led->led_no = reg;
+ led->priv = priv;
+
+ ret = mt6360_init_common_properties(led, &init_data);
+ if (ret)
+ goto out_flash_release;
+
+ if (reg == MT6360_VIRTUAL_MULTICOLOR ||
+ (reg >= MT6360_LED_ISNK1 && reg <= MT6360_LED_ISNKML))
+ ret = mt6360_init_isnk_properties(led, &init_data);
+ else
+ ret = mt6360_init_flash_properties(led, &init_data);
+
+ if (ret)
+ goto out_flash_release;
+
+ ret = mt6360_led_register(&pdev->dev, led, &init_data);
+ if (ret)
+ goto out_flash_release;
+
+ i++;
+ }
+
+ platform_set_drvdata(pdev, priv);
+ return 0;
+
+out_flash_release:
+ mt6360_v4l2_flash_release(priv);
+ return ret;
+}
+
+static int mt6360_led_remove(struct platform_device *pdev)
+{
+ struct mt6360_priv *priv = platform_get_drvdata(pdev);
+
+ mt6360_v4l2_flash_release(priv);
+ return 0;
+}
+
+static const struct of_device_id __maybe_unused mt6360_led_of_id[] = {
+ { .compatible = "mediatek,mt6360-led", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, mt6360_led_of_id);
+
+static struct platform_driver mt6360_led_driver = {
+ .driver = {
+ .name = "mt6360-led",
+ .of_match_table = mt6360_led_of_id,
+ },
+ .probe = mt6360_led_probe,
+ .remove = mt6360_led_remove,
+};
+module_platform_driver(mt6360_led_driver);
+
+MODULE_AUTHOR("Gene Chen <[email protected]>");
+MODULE_DESCRIPTION("MT6360 LED Driver");
+MODULE_LICENSE("GPL v2");
--
2.7.4
From: Gene Chen <[email protected]>
Add LED_FUNCTION_MOONLIGHT definitions
Signed-off-by: Gene Chen <[email protected]>
Acked-by: Jacek Anaszewski <[email protected]>
Acked-by: Rob Herring <[email protected]>
---
include/dt-bindings/leds/common.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/dt-bindings/leds/common.h b/include/dt-bindings/leds/common.h
index 52b619d..843e65d 100644
--- a/include/dt-bindings/leds/common.h
+++ b/include/dt-bindings/leds/common.h
@@ -78,6 +78,7 @@
#define LED_FUNCTION_INDICATOR "indicator"
#define LED_FUNCTION_LAN "lan"
#define LED_FUNCTION_MAIL "mail"
+#define LED_FUNCTION_MOONLIGHT "moonlight"
#define LED_FUNCTION_MTD "mtd"
#define LED_FUNCTION_PANIC "panic"
#define LED_FUNCTION_PROGRAMMING "programming"
--
2.7.4
On Wed 2020-12-02 18:46:49, Gene Chen wrote:
> From: Gene Chen <[email protected]>
>
> Add LED_FUNCTION_MOONLIGHT definitions
>
> Signed-off-by: Gene Chen <[email protected]>
> Acked-by: Jacek Anaszewski <[email protected]>
> Acked-by: Rob Herring <[email protected]>
> ---
> include/dt-bindings/leds/common.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/include/dt-bindings/leds/common.h b/include/dt-bindings/leds/common.h
> index 52b619d..843e65d 100644
> --- a/include/dt-bindings/leds/common.h
> +++ b/include/dt-bindings/leds/common.h
> @@ -78,6 +78,7 @@
> #define LED_FUNCTION_INDICATOR "indicator"
> #define LED_FUNCTION_LAN "lan"
> #define LED_FUNCTION_MAIL "mail"
> +#define LED_FUNCTION_MOONLIGHT "moonlight"
There's "torch" function that should be used for this. I guess comment
should be added with explanation what exactly that is and how should
the LED be named.
Best regards,
Pavel
--
http://www.livejournal.com/~pavelmachek
Hi Gene,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on pavel-linux-leds/for-next]
[also build test WARNING on robh/for-next linus/master v5.10-rc6 next-20201201]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Gene-Chen/leds-mt6360-Add-LED-driver-for-MT6360/20201202-185224
base: git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds.git for-next
config: arm-randconfig-r035-20201202 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 2671fccf0381769276ca8246ec0499adcb9b0355)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://github.com/0day-ci/linux/commit/594faa6d4c2cea720cd53d19375000ab042bb5cb
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Gene-Chen/leds-mt6360-Add-LED-driver-for-MT6360/20201202-185224
git checkout 594faa6d4c2cea720cd53d19375000ab042bb5cb
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>
All warnings (new ones prefixed by >>):
>> drivers/leds/leds-mt6360.c:724:80: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Wformat]
dev_err(&pdev->dev, "No child node or node count over max led number %lu\n", count);
~~~ ^~~~~
%u
include/linux/dev_printk.h:112:32: note: expanded from macro 'dev_err'
_dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
1 warning generated.
vim +724 drivers/leds/leds-mt6360.c
714
715 static int mt6360_led_probe(struct platform_device *pdev)
716 {
717 struct mt6360_priv *priv;
718 struct fwnode_handle *child;
719 size_t count;
720 int i = 0, ret;
721
722 count = device_get_child_node_count(&pdev->dev);
723 if (!count || count > MT6360_MAX_LEDS) {
> 724 dev_err(&pdev->dev, "No child node or node count over max led number %lu\n", count);
725 return -EINVAL;
726 }
727
728 priv = devm_kzalloc(&pdev->dev, struct_size(priv, leds, count), GFP_KERNEL);
729 if (!priv)
730 return -ENOMEM;
731
732 priv->leds_count = count;
733 priv->dev = &pdev->dev;
734 mutex_init(&priv->lock);
735
736 priv->regmap = dev_get_regmap(pdev->dev.parent, NULL);
737 if (!priv->regmap) {
738 dev_err(&pdev->dev, "Failed to get parent regmap\n");
739 return -ENODEV;
740 }
741
742 device_for_each_child_node(&pdev->dev, child) {
743 struct mt6360_led *led = priv->leds + i;
744 struct led_init_data init_data = { .fwnode = child, };
745 u32 reg, led_color;
746
747 ret = fwnode_property_read_u32(child, "color", &led_color);
748 if (ret)
749 goto out_flash_release;
750
751 if (led_color == LED_COLOR_ID_RGB || led_color == LED_COLOR_ID_MULTI)
752 reg = MT6360_VIRTUAL_MULTICOLOR;
753 else {
754 ret = fwnode_property_read_u32(child, "reg", ®);
755 if (ret)
756 goto out_flash_release;
757
758 if (reg >= MT6360_MAX_LEDS) {
759 ret = -EINVAL;
760 goto out_flash_release;
761 }
762 }
763
764 if (priv->leds_active & BIT(reg)) {
765 ret = -EINVAL;
766 goto out_flash_release;
767 }
768 priv->leds_active |= BIT(reg);
769
770 led->led_no = reg;
771 led->priv = priv;
772
773 ret = mt6360_init_common_properties(led, &init_data);
774 if (ret)
775 goto out_flash_release;
776
777 if (reg == MT6360_VIRTUAL_MULTICOLOR ||
778 (reg >= MT6360_LED_ISNK1 && reg <= MT6360_LED_ISNKML))
779 ret = mt6360_init_isnk_properties(led, &init_data);
780 else
781 ret = mt6360_init_flash_properties(led, &init_data);
782
783 if (ret)
784 goto out_flash_release;
785
786 ret = mt6360_led_register(&pdev->dev, led, &init_data);
787 if (ret)
788 goto out_flash_release;
789
790 i++;
791 }
792
793 platform_set_drvdata(pdev, priv);
794 return 0;
795
796 out_flash_release:
797 mt6360_v4l2_flash_release(priv);
798 return ret;
799 }
800
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]
Hi Gene,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on pavel-linux-leds/for-next]
[also build test WARNING on robh/for-next linus/master v5.10-rc6 next-20201201]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Gene-Chen/leds-mt6360-Add-LED-driver-for-MT6360/20201202-185224
base: git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds.git for-next
config: nds32-randconfig-r012-20201202 (attached as .config)
compiler: nds32le-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/594faa6d4c2cea720cd53d19375000ab042bb5cb
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Gene-Chen/leds-mt6360-Add-LED-driver-for-MT6360/20201202-185224
git checkout 594faa6d4c2cea720cd53d19375000ab042bb5cb
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nds32
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>
All warnings (new ones prefixed by >>):
In file included from include/linux/device.h:15,
from include/linux/leds.h:12,
from include/linux/led-class-flash.h:11,
from drivers/leds/leds-mt6360.c:8:
drivers/leds/leds-mt6360.c: In function 'mt6360_led_probe':
>> drivers/leds/leds-mt6360.c:724:23: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Wformat=]
724 | dev_err(&pdev->dev, "No child node or node count over max led number %lu\n", count);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt'
19 | #define dev_fmt(fmt) fmt
| ^~~
drivers/leds/leds-mt6360.c:724:3: note: in expansion of macro 'dev_err'
724 | dev_err(&pdev->dev, "No child node or node count over max led number %lu\n", count);
| ^~~~~~~
drivers/leds/leds-mt6360.c:724:74: note: format string is defined here
724 | dev_err(&pdev->dev, "No child node or node count over max led number %lu\n", count);
| ~~^
| |
| long unsigned int
| %u
vim +724 drivers/leds/leds-mt6360.c
714
715 static int mt6360_led_probe(struct platform_device *pdev)
716 {
717 struct mt6360_priv *priv;
718 struct fwnode_handle *child;
719 size_t count;
720 int i = 0, ret;
721
722 count = device_get_child_node_count(&pdev->dev);
723 if (!count || count > MT6360_MAX_LEDS) {
> 724 dev_err(&pdev->dev, "No child node or node count over max led number %lu\n", count);
725 return -EINVAL;
726 }
727
728 priv = devm_kzalloc(&pdev->dev, struct_size(priv, leds, count), GFP_KERNEL);
729 if (!priv)
730 return -ENOMEM;
731
732 priv->leds_count = count;
733 priv->dev = &pdev->dev;
734 mutex_init(&priv->lock);
735
736 priv->regmap = dev_get_regmap(pdev->dev.parent, NULL);
737 if (!priv->regmap) {
738 dev_err(&pdev->dev, "Failed to get parent regmap\n");
739 return -ENODEV;
740 }
741
742 device_for_each_child_node(&pdev->dev, child) {
743 struct mt6360_led *led = priv->leds + i;
744 struct led_init_data init_data = { .fwnode = child, };
745 u32 reg, led_color;
746
747 ret = fwnode_property_read_u32(child, "color", &led_color);
748 if (ret)
749 goto out_flash_release;
750
751 if (led_color == LED_COLOR_ID_RGB || led_color == LED_COLOR_ID_MULTI)
752 reg = MT6360_VIRTUAL_MULTICOLOR;
753 else {
754 ret = fwnode_property_read_u32(child, "reg", ®);
755 if (ret)
756 goto out_flash_release;
757
758 if (reg >= MT6360_MAX_LEDS) {
759 ret = -EINVAL;
760 goto out_flash_release;
761 }
762 }
763
764 if (priv->leds_active & BIT(reg)) {
765 ret = -EINVAL;
766 goto out_flash_release;
767 }
768 priv->leds_active |= BIT(reg);
769
770 led->led_no = reg;
771 led->priv = priv;
772
773 ret = mt6360_init_common_properties(led, &init_data);
774 if (ret)
775 goto out_flash_release;
776
777 if (reg == MT6360_VIRTUAL_MULTICOLOR ||
778 (reg >= MT6360_LED_ISNK1 && reg <= MT6360_LED_ISNKML))
779 ret = mt6360_init_isnk_properties(led, &init_data);
780 else
781 ret = mt6360_init_flash_properties(led, &init_data);
782
783 if (ret)
784 goto out_flash_release;
785
786 ret = mt6360_led_register(&pdev->dev, led, &init_data);
787 if (ret)
788 goto out_flash_release;
789
790 i++;
791 }
792
793 platform_set_drvdata(pdev, priv);
794 return 0;
795
796 out_flash_release:
797 mt6360_v4l2_flash_release(priv);
798 return ret;
799 }
800
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]
Pavel Machek <[email protected]> 於 2020年12月2日 週三 下午8:23寫道：
>
> On Wed 2020-12-02 18:46:49, Gene Chen wrote:
> > From: Gene Chen <[email protected]>
> >
> > Add LED_FUNCTION_MOONLIGHT definitions
> >
> > Signed-off-by: Gene Chen <[email protected]>
> > Acked-by: Jacek Anaszewski <[email protected]>
> > Acked-by: Rob Herring <[email protected]>
> > ---
> > include/dt-bindings/leds/common.h | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/include/dt-bindings/leds/common.h b/include/dt-bindings/leds/common.h
> > index 52b619d..843e65d 100644
> > --- a/include/dt-bindings/leds/common.h
> > +++ b/include/dt-bindings/leds/common.h
> > @@ -78,6 +78,7 @@
> > #define LED_FUNCTION_INDICATOR "indicator"
> > #define LED_FUNCTION_LAN "lan"
> > #define LED_FUNCTION_MAIL "mail"
> > +#define LED_FUNCTION_MOONLIGHT "moonlight"
>
> There's "torch" function that should be used for this. I guess comment
> should be added with explanation what exactly that is and how should
> the LED be named.
>
According to mail, 11/25 "Re: [PATCH v7 2/5] dt-bindings: leds: Add
LED_COLOR_ID_MOONLIGHT definitions",
The Moonlight LED is LED which maximum current more than torch, but
less than flash. Such as front camera fill light.
I think our channel is moonlight, not torch.
I will add this description to comment.
We can't exactly define moonlight current level, because every vendor
has their own specification.
> Best regards,
> Pavel
> --
> http://www.livejournal.com/~pavelmachek
Hi!
> > > +++ b/include/dt-bindings/leds/common.h
> > > @@ -78,6 +78,7 @@
> > > #define LED_FUNCTION_INDICATOR "indicator"
> > > #define LED_FUNCTION_LAN "lan"
> > > #define LED_FUNCTION_MAIL "mail"
> > > +#define LED_FUNCTION_MOONLIGHT "moonlight"
> >
> > There's "torch" function that should be used for this. I guess comment
> > should be added with explanation what exactly that is and how should
> > the LED be named.
> >
>
> According to mail, 11/25 "Re: [PATCH v7 2/5] dt-bindings: leds: Add
> LED_COLOR_ID_MOONLIGHT definitions",
> The Moonlight LED is LED which maximum current more than torch, but
> less than flash. Such as front camera fill light.
> I think our channel is moonlight, not torch.
> I will add this description to comment.
> We can't exactly define moonlight current level, because every vendor
> has their own specification.
So... what is the timelimit on moonlight?
But if it is used for camera illumination, I believe it should be
simply called flash.
Best regards,
Pavel
--
http://www.livejournal.com/~pavelmachek
Hi Pavel,
On 12/3/20 12:40 PM, Pavel Machek wrote:
> Hi!
>
>>>> +++ b/include/dt-bindings/leds/common.h
>>>> @@ -78,6 +78,7 @@
>>>> #define LED_FUNCTION_INDICATOR "indicator"
>>>> #define LED_FUNCTION_LAN "lan"
>>>> #define LED_FUNCTION_MAIL "mail"
>>>> +#define LED_FUNCTION_MOONLIGHT "moonlight"
>>>
>>> There's "torch" function that should be used for this. I guess comment
>>> should be added with explanation what exactly that is and how should
>>> the LED be named.
>>>
>>
>> According to mail, 11/25 "Re: [PATCH v7 2/5] dt-bindings: leds: Add
>> LED_COLOR_ID_MOONLIGHT definitions",
>> The Moonlight LED is LED which maximum current more than torch, but
>> less than flash. Such as front camera fill light.
>> I think our channel is moonlight, not torch.
>> I will add this description to comment.
>> We can't exactly define moonlight current level, because every vendor
>> has their own specification.
>
> So... what is the timelimit on moonlight?
>
> But if it is used for camera illumination, I believe it should be
> simply called flash.
Let's keep FLASH reserved for LED flash class devices.
This device has already two other flash iouts.
Also iouts amperage gives clue that they have three different
functions.
--
Best regards,
Jacek Anaszewski
Hi Gene,
Thanks for the update.
On 12/2/20 11:46 AM, Gene Chen wrote:
> From: Gene Chen <[email protected]>
>
> Add bindings document for LED support on MT6360 PMIC
>
> Signed-off-by: Gene Chen <[email protected]>
> ---
> .../devicetree/bindings/leds/leds-mt6360.yaml | 159 +++++++++++++++++++++
> 1 file changed, 159 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/leds/leds-mt6360.yaml
>
> diff --git a/Documentation/devicetree/bindings/leds/leds-mt6360.yaml b/Documentation/devicetree/bindings/leds/leds-mt6360.yaml
> new file mode 100644
> index 0000000..73c67b1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-mt6360.yaml
Acked-by: Jacek Anaszewski <[email protected]>
--
Best regards,
Jacek Anaszewski
Hi Gene,
On 12/2/20 11:46 AM, Gene Chen wrote:
> From: Gene Chen <[email protected]>
>
> Add MT6360 LED driver include 2-channel Flash LED with torch/strobe mode,
> 3-channel RGB LED support Register/Flash/Breath Mode, and 1-channel for
> moonlight LED.
>
> Signed-off-by: Gene Chen <[email protected]>
> ---
> drivers/leds/Kconfig | 13 +
> drivers/leds/Makefile | 1 +
> drivers/leds/leds-mt6360.c | 827 +++++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 841 insertions(+)
> create mode 100644 drivers/leds/leds-mt6360.c
>
> diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
> index 1c181df..4f533bc 100644
> --- a/drivers/leds/Kconfig
> +++ b/drivers/leds/Kconfig
> @@ -271,6 +271,19 @@ config LEDS_MT6323
> This option enables support for on-chip LED drivers found on
> Mediatek MT6323 PMIC.
>
> +config LEDS_MT6360
> + tristate "LED Support for Mediatek MT6360 PMIC"
> + depends on LEDS_CLASS && OF
> + depends on LEDS_CLASS_FLASH || !LEDS_CLASS_FLASH
> + depends on LEDS_CLASS_MULTICOLOR || !LEDS_CLASS_MULTICOLOR
> + depends on V4L2_FLASH_LED_CLASS || !V4L2_FLASH_LED_CLASS
> + depends on MFD_MT6360
> + help
> + This option enables support for dual Flash LED drivers found on
> + Mediatek MT6360 PMIC.
> + Independent current sources supply for each flash LED support torch
> + and strobe mode.
> +
> config LEDS_S3C24XX
> tristate "LED Support for Samsung S3C24XX GPIO LEDs"
> depends on LEDS_CLASS
> diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
> index c2c7d7a..5596427 100644
[...]
> +static int mt6360_led_probe(struct platform_device *pdev)
> +{
> + struct mt6360_priv *priv;
> + struct fwnode_handle *child;
> + size_t count;
> + int i = 0, ret;
> +
> + count = device_get_child_node_count(&pdev->dev);
> + if (!count || count > MT6360_MAX_LEDS) {
> + dev_err(&pdev->dev, "No child node or node count over max led number %lu\n", count);
> + return -EINVAL;
> + }
> +
> + priv = devm_kzalloc(&pdev->dev, struct_size(priv, leds, count), GFP_KERNEL);
> + if (!priv)
> + return -ENOMEM;
> +
> + priv->leds_count = count;
> + priv->dev = &pdev->dev;
> + mutex_init(&priv->lock);
> +
> + priv->regmap = dev_get_regmap(pdev->dev.parent, NULL);
> + if (!priv->regmap) {
> + dev_err(&pdev->dev, "Failed to get parent regmap\n");
> + return -ENODEV;
> + }
> +
> + device_for_each_child_node(&pdev->dev, child) {
> + struct mt6360_led *led = priv->leds + i;
> + struct led_init_data init_data = { .fwnode = child, };
> + u32 reg, led_color;
> +
> + ret = fwnode_property_read_u32(child, "color", &led_color);
> + if (ret)
> + goto out_flash_release;
> +
> + if (led_color == LED_COLOR_ID_RGB || led_color == LED_COLOR_ID_MULTI)
> + reg = MT6360_VIRTUAL_MULTICOLOR;
> + else {
> + ret = fwnode_property_read_u32(child, "reg", ®);
> + if (ret)
> + goto out_flash_release;
> +
> + if (reg >= MT6360_MAX_LEDS) {
> + ret = -EINVAL;
> + goto out_flash_release;
> + }
> + }
> +
> + if (priv->leds_active & BIT(reg)) {
> + ret = -EINVAL;
> + goto out_flash_release;
> + }
> + priv->leds_active |= BIT(reg);
> +
> + led->led_no = reg;
> + led->priv = priv;
> +
> + ret = mt6360_init_common_properties(led, &init_data);
> + if (ret)
> + goto out_flash_release;
> +
> + if (reg == MT6360_VIRTUAL_MULTICOLOR ||
> + (reg >= MT6360_LED_ISNK1 && reg <= MT6360_LED_ISNKML))
> + ret = mt6360_init_isnk_properties(led, &init_data);
> + else
> + ret = mt6360_init_flash_properties(led, &init_data);
> +
> + if (ret)
> + goto out_flash_release;
> +
> + ret = mt6360_led_register(&pdev->dev, led, &init_data);
> + if (ret)
> + goto out_flash_release;
> +
> + i++;
> + }
> +
> + platform_set_drvdata(pdev, priv);
> + return 0;
> +
> +out_flash_release:
> + mt6360_v4l2_flash_release(priv);
The need for releasing v4l2_flash devices here and not other LEDs is not
obvious at first glance. Of course this is due to the fact that
LED/flash registration functions have devm support but v4l2_flash
doesn't. It would be good to cover it at some point.
If you added that support to
drivers/media/v4l2-core/v4l2-flash-led-class.c then you could
simplify the code in this driver quite nicely.
But it's up to you.
That being said:
Acked-by: Jacek Anaszewski <[email protected]>
--
Best regards,
Jacek Anaszewski
On Thu, Dec 03, 2020 at 09:06:42PM +0100, Jacek Anaszewski wrote:
> Hi Pavel,
>
> On 12/3/20 12:40 PM, Pavel Machek wrote:
> > Hi!
> >
> > > > > +++ b/include/dt-bindings/leds/common.h
> > > > > @@ -78,6 +78,7 @@
> > > > > #define LED_FUNCTION_INDICATOR "indicator"
> > > > > #define LED_FUNCTION_LAN "lan"
> > > > > #define LED_FUNCTION_MAIL "mail"
> > > > > +#define LED_FUNCTION_MOONLIGHT "moonlight"
> > > >
> > > > There's "torch" function that should be used for this. I guess comment
> > > > should be added with explanation what exactly that is and how should
> > > > the LED be named.
> > > >
> > >
> > > According to mail, 11/25 "Re: [PATCH v7 2/5] dt-bindings: leds: Add
> > > LED_COLOR_ID_MOONLIGHT definitions",
> > > The Moonlight LED is LED which maximum current more than torch, but
> > > less than flash. Such as front camera fill light.
> > > I think our channel is moonlight, not torch.
> > > I will add this description to comment.
> > > We can't exactly define moonlight current level, because every vendor
> > > has their own specification.
> >
> > So... what is the timelimit on moonlight?
> >
> > But if it is used for camera illumination, I believe it should be
> > simply called flash.
>
> Let's keep FLASH reserved for LED flash class devices.
> This device has already two other flash iouts.
>
> Also iouts amperage gives clue that they have three different
> functions.
Perhaps there should just be a table of currents and max times rather
than trying to continually expand this while tied to function.
One could simply want an LED brighter when blinking than steady state
would allow for.
Rob
On Wed, Dec 02, 2020 at 06:46:50PM +0800, Gene Chen wrote:
> From: Gene Chen <[email protected]>
>
> Add bindings document for LED support on MT6360 PMIC
>
> Signed-off-by: Gene Chen <[email protected]>
> ---
> .../devicetree/bindings/leds/leds-mt6360.yaml | 159 +++++++++++++++++++++
> 1 file changed, 159 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/leds/leds-mt6360.yaml
>
> diff --git a/Documentation/devicetree/bindings/leds/leds-mt6360.yaml b/Documentation/devicetree/bindings/leds/leds-mt6360.yaml
> new file mode 100644
> index 0000000..73c67b1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-mt6360.yaml
> @@ -0,0 +1,159 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/leds/leds-mt6360.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: LED driver for MT6360 PMIC from MediaTek Integrated.
> +
> +maintainers:
> + - Gene Chen <[email protected]>
> +
> +description: |
> + This module is part of the MT6360 MFD device.
> + see Documentation/devicetree/bindings/mfd/mt6360.yaml
> + Add MT6360 LED driver include 2-channel Flash LED with torch/strobe mode,
> + and 4-channel RGB LED support Register/Flash/Breath Mode
> +
> +properties:
> + compatible:
> + const: mediatek,mt6360-led
> +
> + "#address-cells":
> + const: 1
> +
> + "#size-cells":
> + const: 0
> +
> +patternProperties:
> + "(^led@[0-5]$|led)":
"^(multi-)?led@[0-5]$":
> + type: object
> + $ref: common.yaml#
> + description:
> + Properties for a single LED.
> +
> + properties:
> + reg:
> + description: Index of the LED.
> + enum:
> + - 0 # LED output ISINK1
> + - 1 # LED output ISINK2
> + - 2 # LED output ISINK3
> + - 3 # LED output ISINKML
> + - 4 # LED output FLASH1
> + - 5 # LED output FLASH2
> +
> +unevaluatedProperties: false
> +
> +required:
> + - compatible
> + - "#address-cells"
> + - "#size-cells"
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/leds/common.h>
> + led-controller {
> + compatible = "mediatek,mt6360-led";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + multi-led@0 {
> + reg = <0>;
> + function = LED_FUNCTION_INDICATOR;
> + color = <LED_COLOR_ID_RGB>;
> + led-max-microamp = <24000>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + led@0 {
> + reg = <0>;
> + color = <LED_COLOR_ID_RED>;
> + };
> + led@1 {
> + reg = <1>;
> + color = <LED_COLOR_ID_GREEN>;
> + };
> + led@2 {
> + reg = <2>;
> + color = <LED_COLOR_ID_BLUE>;
> + };
> + };
> + led@3 {
> + reg = <3>;
> + function = LED_FUNCTION_MOONLIGHT;
> + color = <LED_COLOR_ID_WHITE>;
> + led-max-microamp = <150000>;
> + };
> + led@4 {
> + reg = <4>;
> + function = LED_FUNCTION_FLASH;
> + color = <LED_COLOR_ID_WHITE>;
> + function-enumerator = <1>;
> + led-max-microamp = <200000>;
> + flash-max-microamp = <500000>;
> + flash-max-timeout-us = <1024000>;
> + };
> + led@5 {
> + reg = <5>;
> + function = LED_FUNCTION_FLASH;
> + color = <LED_COLOR_ID_WHITE>;
> + function-enumerator = <2>;
> + led-max-microamp = <200000>;
> + flash-max-microamp = <500000>;
> + flash-max-timeout-us = <1024000>;
> + };
> + };
> +
> + - |
> +
> + led-controller {
> + compatible = "mediatek,mt6360-led";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + led@0 {
> + reg = <0>;
> + function = LED_FUNCTION_INDICATOR;
> + color = <LED_COLOR_ID_RED>;
> + led-max-microamp = <24000>;
> + };
> + led@1 {
> + reg = <1>;
> + function = LED_FUNCTION_INDICATOR;
> + color = <LED_COLOR_ID_GREEN>;
> + led-max-microamp = <24000>;
> + };
> + led@2 {
> + reg = <2>;
> + function = LED_FUNCTION_INDICATOR;
> + color = <LED_COLOR_ID_BLUE>;
> + led-max-microamp = <24000>;
> + };
> + led@3 {
> + reg = <3>;
> + function = LED_FUNCTION_MOONLIGHT;
> + color = <LED_COLOR_ID_WHITE>;
> + led-max-microamp = <150000>;
> + };
> + led@4 {
> + reg = <4>;
> + function = LED_FUNCTION_FLASH;
> + color = <LED_COLOR_ID_WHITE>;
> + function-enumerator = <1>;
> + led-max-microamp = <200000>;
> + flash-max-microamp = <500000>;
> + flash-max-timeout-us = <1024000>;
> + };
> + led@5 {
> + reg = <5>;
> + function = LED_FUNCTION_FLASH;
> + color = <LED_COLOR_ID_WHITE>;
> + function-enumerator = <2>;
> + led-max-microamp = <200000>;
> + flash-max-microamp = <500000>;
> + flash-max-timeout-us = <1024000>;
> + };
> + };
> +...
> --
> 2.7.4
>