[PATCH v10 0/6] leds: mt6360: Add LED driver for MT6360

[PATCH v10 0/6] leds: mt6360: Add LED driver for MT6360

[Gene Chen]

[PATCH v10 0/6] leds: mt6360: Add LED driver for MT6360

This patch series add MT6360 LED support contains driver and binding document

Gene Chen (6)
 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: common: Increase LED_COLOR_ID_* maximum size
 dt-bindings: leds: Add bindings for MT6360 LED
 leds: mt6360: Add LED driver for MT6360

 Documentation/devicetree/bindings/leds/common.yaml      |    2 
 Documentation/devicetree/bindings/leds/leds-mt6360.yaml |  164 +++
 drivers/leds/Kconfig                                    |   13 
 drivers/leds/Makefile                                   |    1 
 drivers/leds/leds-mt6360.c                              |  811 ++++++++++++++++
 include/dt-bindings/leds/common.h                       |    1 
 include/linux/led-class-flash.h                         |   42 
 include/linux/led-class-multicolor.h                    |   42 
 8 files changed, 1039 insertions(+), 37 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

[PATCH v10 1/6] leds: flash: Add flash registration with undefined CONFIG_LEDS_CLASS_FLASH

[Gene Chen]

From: Gene Chen <gene_chen@richtek.com>

Add flash registration with undefined CONFIG_LEDS_CLASS_FLASH,
and reuse same registration functions no matter flash class exist or not.

Signed-off-by: Gene Chen <gene_chen@richtek.com>
---
 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

[PATCH v10 2/6] leds: flash: Fix multicolor no-ops registration by return 0

[Gene Chen]

From: Gene Chen <gene_chen@richtek.com>

Fix multicolor no-ops registration by return 0,
and reuse same registration functions no matter multicolor class exist or not.

Signed-off-by: Gene Chen <gene_chen@richtek.com>
---
 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

[PATCH v10 3/6] dt-bindings: leds: Add LED_FUNCTION_MOONLIGHT definitions

[Gene Chen]

From: Gene Chen <gene_chen@richtek.com>

Add LED_FUNCTION_MOONLIGHT definitions

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
---
 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

[PATCH v10 4/6] dt-bindings: leds: common: Increase LED_COLOR_ID_* maximum size

[Gene Chen]

From: Gene Chen <gene_chen@richtek.com>

Increase LED_COLOR_ID maximum size for LED_COLOR_ID_RGB

Signed-off-by: Gene Chen <gene_chen@richtek.com>
---
 Documentation/devicetree/bindings/leds/common.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/leds/common.yaml b/Documentation/devicetree/bindings/leds/common.yaml
index a2a541b..0c9f912 100644
--- a/Documentation/devicetree/bindings/leds/common.yaml
+++ b/Documentation/devicetree/bindings/leds/common.yaml
@@ -43,7 +43,7 @@ properties:
       LED_COLOR_ID available, add a new one.
     $ref: /schemas/types.yaml#definitions/uint32
     minimum: 0
-    maximum: 8
+    maximum: 9
 
   function-enumerator:
     description:
-- 
2.7.4

[PATCH v10 5/6] dt-bindings: leds: Add bindings for MT6360 LED

[Gene Chen]

From: Gene Chen <gene_chen@richtek.com>

Add bindings document for LED support on MT6360 PMIC

Signed-off-by: Gene Chen <gene_chen@richtek.com>
---
 .../devicetree/bindings/leds/leds-mt6360.yaml      | 164 +++++++++++++++++++++
 1 file changed, 164 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..b2ffbc6
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-mt6360.yaml
@@ -0,0 +1,164 @@
+# 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 <gene_chen@richtek.com>
+
+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@[0-6]$":
+    type: object
+    $ref: common.yaml#
+    description:
+      Properties for a single LED.
+
+    properties:
+      reg:
+        description: Index of the LED.
+        enum:
+          - 0 # LED output INDICATOR1_RED
+          - 1 # LED output INDICATOR1_GREEN
+          - 2 # LED output INDICATOR1_BLUE
+          - 3 # LED output INDICATOR2_ML
+          - 4 # LED output FLED1
+          - 5 # LED output FLED2
+          - 6 # LED output MULTICOLOR
+
+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>;
+
+     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@6 {
+       reg = <6>;
+       function = LED_FUNCTION_INDICATOR;
+       color = <LED_COLOR_ID_RGB>;
+       led-max-microamp = <24000>;
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       led@0 {
+         reg = <0>;
+         function = LED_FUNCTION_INDICATOR;
+         color = <LED_COLOR_ID_RED>;
+       };
+       led@1 {
+         reg = <1>;
+         function = LED_FUNCTION_INDICATOR;
+         color = <LED_COLOR_ID_GREEN>;
+       };
+       led@2 {
+         reg = <2>;
+         function = LED_FUNCTION_INDICATOR;
+         color = <LED_COLOR_ID_BLUE>;
+       };
+     };
+   };
+
+ - |
+
+   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

[PATCH v10 6/6] leds: mt6360: Add LED driver for MT6360

[Gene Chen]

From: Gene Chen <gene_chen@richtek.com>

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 <gene_chen@richtek.com>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
---
 drivers/leds/Kconfig       |  13 +
 drivers/leds/Makefile      |   1 +
 drivers/leds/leds-mt6360.c | 811 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 825 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..94836bb
--- /dev/null
+++ b/drivers/leds/leds-mt6360.c
@@ -0,0 +1,811 @@
+// 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_LED_MULTICOLOR,
+	MT6360_MAX_LEDS = MT6360_LED_MULTICOLOR
+};
+
+#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)
+
+#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), &regval);
+	if (ret)
+		return ret;
+	level = regval & MT6360_ISNK_MASK;
+
+	ret = regmap_read(priv->regmap, MT6360_REG_RGBEN, &regval);
+	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), &regval);
+	if (ret)
+		return ret;
+	level = regval & MT6360_ITORCH_MASK;
+
+	ret = regmap_read(priv->regmap, MT6360_REG_FLEDEN, &regval);
+	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_LED_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_LED_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_LED_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", &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;
+
+		ret = fwnode_property_read_u32(child, "reg", &reg);
+		if (ret)
+			goto out_flash_release;
+
+		if (reg > MT6360_MAX_LEDS || priv->leds_active & BIT(reg))
+			return -EINVAL;
+		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_LED_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 <gene_chen@richtek.com>");
+MODULE_DESCRIPTION("MT6360 LED Driver");
+MODULE_LICENSE("GPL v2");
-- 
2.7.4

Re: [PATCH v10 5/6] dt-bindings: leds: Add bindings for MT6360 LED

[Jacek Anaszewski]

Hi Gene,

On 11/27/20 4:28 AM, Gene Chen wrote:
> From: Gene Chen <gene_chen@richtek.com>
> 
> Add bindings document for LED support on MT6360 PMIC
> 
> Signed-off-by: Gene Chen <gene_chen@richtek.com>
> ---
>   .../devicetree/bindings/leds/leds-mt6360.yaml      | 164 +++++++++++++++++++++
>   1 file changed, 164 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..b2ffbc6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-mt6360.yaml
> @@ -0,0 +1,164 @@
> +# 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 <gene_chen@richtek.com>
> +
> +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@[0-6]$":
> +    type: object
> +    $ref: common.yaml#
> +    description:
> +      Properties for a single LED.
> +
> +    properties:
> +      reg:
> +        description: Index of the LED.
> +        enum:
> +          - 0 # LED output INDICATOR1_RED
> +          - 1 # LED output INDICATOR1_GREEN
> +          - 2 # LED output INDICATOR1_BLUE
> +          - 3 # LED output INDICATOR2_
These LED output descriptions look odd.
In the driver you have:

enum {
     MT6360_LED_ISNK1 = 0,
     MT6360_LED_ISNK2,
     MT6360_LED_ISNK3,
     MT6360_LED_ISNKML
     ...

I think the same names should be used for DT reg property documentation:

- 0 # LED output ISNK1
- 1 # LED output ISNK2
- 2 # LED output ISNK3
- 3 # LED output ISNKML

Here you're describing hardware, i.e. current sinks as they are
defined in the device documentation, and not the functions you're
assigning in DT to the connected LEDs.

> +          - 4 # LED output FLED1
> +          - 5 # LED output FLED2
> +          - 6 # LED output MULTICOLOR


This last enum is also disputable, since it is driver specific, and not
hardware specific. Actually you should rather check LED color id and
basing on that treat the LED as multicolor (for LED_COLOR_ID_RGB).
See drivers/leds/leds-lp55xx-common.c for a reference.

> +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>;
> +
> +     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@6 {
> +       reg = <6>;
> +       function = LED_FUNCTION_INDICATOR;
> +       color = <LED_COLOR_ID_RGB>;
> +       led-max-microamp = <24000>;
> +       #address-cells = <1>;
> +       #size-cells = <0>;
> +
> +       led@0 {
> +         reg = <0>;
> +         function = LED_FUNCTION_INDICATOR;

The function is unused in case of the multicolor subleds.
Please drop it from here.

> +         color = <LED_COLOR_ID_RED>;
> +       };
> +       led@1 {
> +         reg = <1>;
> +         function = LED_FUNCTION_INDICATOR;

Ditto.

> +         color = <LED_COLOR_ID_GREEN>;
> +       };
> +       led@2 {
> +         reg = <2>;
> +         function = LED_FUNCTION_INDICATOR;

Ditto.

> +         color = <LED_COLOR_ID_BLUE>;
> +       };
> +     };
> +   };
> +
> + - |
> +
> +   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>;
> +     };
> +   };
> +...
> 

-- 
Best regards,
Jacek Anaszewski

Re: [PATCH v10 5/6] dt-bindings: leds: Add bindings for MT6360 LED

[Rob Herring]

On Fri, 27 Nov 2020 11:28:55 +0800, Gene Chen wrote:
> From: Gene Chen <gene_chen@richtek.com>
> 
> Add bindings document for LED support on MT6360 PMIC
> 
> Signed-off-by: Gene Chen <gene_chen@richtek.com>
> ---
>  .../devicetree/bindings/leds/leds-mt6360.yaml      | 164 +++++++++++++++++++++
>  1 file changed, 164 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/leds/leds-mt6360.yaml
> 


My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:
./Documentation/devicetree/bindings/leds/leds-mt6360.yaml:57:2: [warning] wrong indentation: expected 2 but found 1 (indentation)

dtschema/dtc warnings/errors:


See https://patchwork.ozlabs.org/patch/1406971

The base for the patch is generally the last rc1. Any dependencies
should be noted.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.

Re: [PATCH v10 3/6] dt-bindings: leds: Add LED_FUNCTION_MOONLIGHT definitions

[Rob Herring]

On Fri, 27 Nov 2020 11:28:53 +0800, Gene Chen wrote:
> From: Gene Chen <gene_chen@richtek.com>
> 
> Add LED_FUNCTION_MOONLIGHT definitions
> 
> Signed-off-by: Gene Chen <gene_chen@richtek.com>
> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
> ---
>  include/dt-bindings/leds/common.h | 1 +
>  1 file changed, 1 insertion(+)
> 

Acked-by: Rob Herring <robh@kernel.org>

Re: [PATCH v10 4/6] dt-bindings: leds: common: Increase LED_COLOR_ID_* maximum size

[Rob Herring]

On Fri, Nov 27, 2020 at 11:28:54AM +0800, Gene Chen wrote:
> From: Gene Chen <gene_chen@richtek.com>
> 
> Increase LED_COLOR_ID maximum size for LED_COLOR_ID_RGB
> 
> Signed-off-by: Gene Chen <gene_chen@richtek.com>
> ---
>  Documentation/devicetree/bindings/leds/common.yaml | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/leds/common.yaml b/Documentation/devicetree/bindings/leds/common.yaml
> index a2a541b..0c9f912 100644
> --- a/Documentation/devicetree/bindings/leds/common.yaml
> +++ b/Documentation/devicetree/bindings/leds/common.yaml
> @@ -43,7 +43,7 @@ properties:
>        LED_COLOR_ID available, add a new one.
>      $ref: /schemas/types.yaml#definitions/uint32
>      minimum: 0
> -    maximum: 8
> +    maximum: 9

Already in linux-next.

>  
>    function-enumerator:
>      description:
> -- 
> 2.7.4
>