leds: leds-mc13783: Add MC13892 LED support

Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Tested-by: Philippe Retornaz <philippe.retornaz@epfl.ch> Signed-off-by: Bryan Wu <cooloney@gmail.com>
mariux64 · Jun 20, 2013 · ae6cdb0 · ae6cdb0
1 parent 9d26381
commit ae6cdb0
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Showing 3 changed files with 69 additions and 4 deletions.
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
@@ -388,12 +388,12 @@ config LEDS_DELL_NETBOOKS
 	  notebooks that have an external LED.
 
 config LEDS_MC13783
-	tristate "LED Support for MC13783 PMIC"
+	tristate "LED Support for MC13XXX PMIC"
 	depends on LEDS_CLASS
-	depends on MFD_MC13783
+	depends on MFD_MC13XXX
 	help
 	  This option enable support for on-chip LED drivers found
-	  on Freescale Semiconductor MC13783 PMIC.
+	  on Freescale Semiconductor MC13783/MC13892 PMIC.
 
 config LEDS_NS2
 	tristate "LED support for Network Space v2 GPIO LEDs"

diff --git a/drivers/leds/leds-mc13783.c b/drivers/leds/leds-mc13783.c
@@ -1,5 +1,5 @@
 /*
- * LEDs driver for Freescale MC13783
+ * LEDs driver for Freescale MC13783/MC13892
  *
  * Copyright (C) 2010 Philippe Rétornaz
  *
@@ -85,6 +85,34 @@ static void mc13xxx_led_work(struct work_struct *work)
 		value = led->new_brightness >> 3;
 		mask = 0x1f;
 		break;
+	case MC13892_LED_MD:
+		reg = MC13XXX_REG_LED_CONTROL(0);
+		shift = 3;
+		mask = 0x3f;
+		value = led->new_brightness >> 2;
+		break;
+	case MC13892_LED_AD:
+		reg = MC13XXX_REG_LED_CONTROL(0);
+		shift = 15;
+		mask = 0x3f;
+		value = led->new_brightness >> 2;
+		break;
+	case MC13892_LED_KP:
+		reg = MC13XXX_REG_LED_CONTROL(1);
+		shift = 3;
+		mask = 0x3f;
+		value = led->new_brightness >> 2;
+		break;
+	case MC13892_LED_R:
+	case MC13892_LED_G:
+	case MC13892_LED_B:
+		off = led->id - MC13892_LED_R;
+		bank = off / 2;
+		reg = MC13XXX_REG_LED_CONTROL(2) + bank;
+		shift = (off - bank * 2) * 12 + 3;
+		value = led->new_brightness >> 2;
+		mask = 0x3f;
+		break;
 	default:
 		BUG();
 	}
@@ -138,6 +166,29 @@ static int __init mc13xxx_led_setup(struct mc13xxx_led *led, int max_current)
 		shift = ((led->id - MC13783_LED_R1) - bank * 3) * 2;
 		mask = 0x03;
 		break;
+	case MC13892_LED_MD:
+		reg = MC13XXX_REG_LED_CONTROL(0);
+		shift = 9;
+		mask = 0x07;
+		break;
+	case MC13892_LED_AD:
+		reg = MC13XXX_REG_LED_CONTROL(0);
+		shift = 21;
+		mask = 0x07;
+		break;
+	case MC13892_LED_KP:
+		reg = MC13XXX_REG_LED_CONTROL(1);
+		shift = 9;
+		mask = 0x07;
+		break;
+	case MC13892_LED_R:
+	case MC13892_LED_G:
+	case MC13892_LED_B:
+		bank = (led->id - MC13892_LED_R) / 2;
+		reg = MC13XXX_REG_LED_CONTROL(2) + bank;
+		shift = ((led->id - MC13892_LED_R) - bank * 2) * 12 + 9;
+		mask = 0x07;
+		break;
 	default:
 		BUG();
 	}
@@ -276,8 +327,15 @@ static const struct mc13xxx_led_devtype mc13783_led_devtype = {
 	.num_regs	= 6,
 };
 
+static const struct mc13xxx_led_devtype mc13892_led_devtype = {
+	.led_min	= MC13892_LED_MD,
+	.led_max	= MC13892_LED_B,
+	.num_regs	= 4,
+};
+
 static const struct platform_device_id mc13xxx_led_id_table[] = {
 	{ "mc13783-led", (kernel_ulong_t)&mc13783_led_devtype, },
+	{ "mc13892-led", (kernel_ulong_t)&mc13892_led_devtype, },
 	{ }
 };
 MODULE_DEVICE_TABLE(platform, mc13xxx_led_id_table);

diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h
@@ -92,6 +92,13 @@ enum {
 	MC13783_LED_R3,
 	MC13783_LED_G3,
 	MC13783_LED_B3,
+	/* MC13892 LED IDs */
+	MC13892_LED_MD,
+	MC13892_LED_AD,
+	MC13892_LED_KP,
+	MC13892_LED_R,
+	MC13892_LED_G,
+	MC13892_LED_B,
 };
 
 struct mc13xxx_led_platform_data {