Merge tag 'leds-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kerne…

…l/git/pavel/linux-leds

Pull LED updates from Pavel Machek:
 "Nothing too exciting here, just some fixes"

* tag 'leds-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
  leds: pca9532: Assign gpio base dynamically
  leds: trigger: pattern: Switch to using the new API kobj_to_dev()
  leds: LEDS_BLINK_LGM should depend on X86
  leds: lgm: Fix spelling mistake "prepate" -> "prepare"
  MAINTAINERS: Remove Dan Murphy's bouncing email
  leds-lm3642: convert comma to semicolon
  leds: rt4505: Add support for Richtek RT4505 flash LED controller
  leds: rt4505: Add DT binding document for Richtek RT4505
  leds: Kconfig: LEDS_CLASS is usually selected.
  leds: lgm: Improve Kconfig help
  leds: lgm: fix gpiolib dependency

Documentation/devicetree/bindings/leds/leds-rt4505.yaml

@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-rt4505.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Richtek RT4505 Single Channel LED Driver
+
+maintainers:
+  - ChiYuan Huang <cy_huang@richtek.com>
+
+description: |
+  The RT4505 is a flash LED driver that can support up to 375mA and 1.5A for
+  torch and flash mode, respectively.
+
+  The data sheet can be found at:
+    https://www.richtek.com/assets/product_file/RT4505/DS4505-02.pdf
+
+properties:
+  compatible:
+    const: richtek,rt4505
+
+  reg:
+    description: I2C slave address of the controller.
+    maxItems: 1
+
+  led:
+    type: object
+    $ref: common.yaml#
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/leds/common.h>
+
+    i2c0 {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      led-controller@63 {
+        compatible = "richtek,rt4505";
+        reg = <0x63>;
+
+        rt4505_flash: led {
+          function = LED_FUNCTION_FLASH;
+          color = <LED_COLOR_ID_WHITE>;
+          led-max-microamp = <375000>;
+          flash-max-microamp = <1500000>;
+          flash-max-timeout-us = <800000>;
+        };
+      };
+    };

drivers/leds/Kconfig

@@ -18,7 +18,7 @@ config LEDS_CLASS
 	tristate "LED Class Support"
 	help
 	  This option enables the LED sysfs class in /sys/class/leds.  You'll
-	  need this to do anything useful with LEDs.  If unsure, say N.
+	  need this to do anything useful with LEDs.  If unsure, say Y.
 
 config LEDS_CLASS_FLASH
 	tristate "LED Flash Class Support"
@@ -928,13 +928,12 @@ config LEDS_ACER_A500
 	  This option enables support for the Power Button LED of
 	  Acer Iconia Tab A500.
 
+source "drivers/leds/blink/Kconfig"
+
 comment "Flash and Torch LED drivers"
 source "drivers/leds/flash/Kconfig"
 
 comment "LED Triggers"
 source "drivers/leds/trigger/Kconfig"
 
-comment "LED Blink"
-source "drivers/leds/blink/Kconfig"
-
 endif # NEW_LEDS

drivers/leds/Makefile

@@ -110,4 +110,4 @@ obj-$(CONFIG_LEDS_CLASS_FLASH)		+= flash/
 obj-$(CONFIG_LEDS_TRIGGERS)		+= trigger/
 
 # LED Blink
-obj-$(CONFIG_LEDS_BLINK)                += blink/
+obj-y					+= blink/

drivers/leds/blink/Kconfig

@@ -1,20 +1,17 @@
-menuconfig LEDS_BLINK
-	bool "LED Blink support"
-	depends on LEDS_CLASS
-	help
-	  This option enables blink support for the leds class.
-	  If unsure, say Y.
+config LEDS_LGM
+       tristate "LED support for LGM SoC series"
+       depends on X86 || COMPILE_TEST
+       depends on GPIOLIB && LEDS_CLASS && MFD_SYSCON && OF
+       help
+         This option enables support for LEDs connected to GPIO lines on
+         Lightning Mountain (LGM) SoC. Lightning Mountain is a AnyWAN
+         gateway-on-a-chip SoC to be shipped on mid and high end home
+         gateways and routers.
 
-if LEDS_BLINK
+         These LEDs are driven by a Serial Shift Output (SSO) controller.
+         The driver supports hardware blinking and the LEDs can be configured
+         to be triggered by software/CPU or by hardware.
 
-config LEDS_BLINK_LGM
-	tristate "LED support for Intel LGM SoC series"
-	depends on LEDS_CLASS
-	depends on MFD_SYSCON
-	depends on OF
-	help
-	  Parallel to serial conversion, which is also called SSO controller,
-	  can drive external shift register for LED outputs.
-	  This enables LED support for Serial Shift Output controller(SSO).
-
-endif # LEDS_BLINK
+         Say 'Y' here if you are working on LGM SoC based platform. Otherwise,
+         say 'N'. To compile this driver as a module, choose M here: the module
+         will be called leds-lgm-sso.

drivers/leds/blink/Makefile

@@ -1,2 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_LEDS_BLINK_LGM)	+= leds-lgm-sso.o
+obj-$(CONFIG_LEDS_LGM)	+= leds-lgm-sso.o

drivers/leds/blink/leds-lgm-sso.c

@@ -793,7 +793,7 @@ static int intel_sso_led_probe(struct platform_device *pdev)
 
 	ret = clk_prepare_enable(priv->gclk);
 	if (ret) {
-		dev_err(dev, "Failed to prepate/enable sso gate clock!\n");
+		dev_err(dev, "Failed to prepare/enable sso gate clock!\n");
 		return ret;
 	}
 

drivers/leds/flash/Kconfig

@@ -2,6 +2,17 @@
 
 if LEDS_CLASS_FLASH
 
+config LEDS_RT4505
+	tristate "LED support for RT4505 flashlight controller"
+	depends on I2C && OF
+	depends on V4L2_FLASH_LED_CLASS || !V4L2_FLASH_LED_CLASS
+	select REGMAP_I2C
+	help
+	  This option enables support for the RT4505 flash LED controller.
+	  RT4505 includes torch and flash functions with programmable current.
+	  And it's commonly used to compensate the illuminance for the camera
+	  inside the mobile product like as phones or tablets.
+
 config LEDS_RT8515
 	tristate "LED support for Richtek RT8515 flash/torch LED"
 	depends on GPIOLIB

drivers/leds/flash/Makefile

@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
 
+obj-$(CONFIG_LEDS_RT4505)	+= leds-rt4505.o
 obj-$(CONFIG_LEDS_RT8515)	+= leds-rt8515.o