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authorAlexander Shiyan <shc_work@mail.ru>2013-06-10 18:59:31 +0200
committerBryan Wu <cooloney@gmail.com>2013-06-21 01:21:34 +0200
commitae6cdb03ef1d352c489d6c86e0bcec51365a2c64 (patch)
tree32e4198c16fe247afc09269cfd445ef929e36c95 /drivers/leds
parentleds: leds-mc13783: Prepare driver to support MC13892 LEDs (diff)
downloadlinux-ae6cdb03ef1d352c489d6c86e0bcec51365a2c64.tar.xz
linux-ae6cdb03ef1d352c489d6c86e0bcec51365a2c64.zip
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>
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/Kconfig6
-rw-r--r--drivers/leds/leds-mc13783.c60
2 files changed, 62 insertions, 4 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index ef992293598a..e43402dd1dea 100644
--- 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
index da8ec244a641..f4de98052aaa 100644
--- 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);