@@ -1,5 +1,5 @@
/*
- * LEDs driver for Freescale MC13783
+ * LEDs driver for Freescale MC13783/MC13982
*
* Copyright (C) 2010 Philippe Rétornaz
*
@@ -49,9 +49,15 @@ struct mc13xxx_led {
#define MC13783_LED_C0_ABMODE 11
#define MC13783_LED_C0_ABREF_MASK 0x3
#define MC13783_LED_C0_ABREF 14
+#define MC13892_LED_C0_MD_HI_CURRENT (1 << 1)
+#define MC13892_LED_C0_RAMPMD_ENABLE (1 << 2)
+#define MC13892_LED_C0_AD_HI_CURRENT (1 << 13)
+#define MC13892_LED_C0_RAMPAD_ENABLE (1 << 14)
#define MC13XXX_REG_LED_CONTROL_1 52
#define MC13783_LED_C1_TC1HALF_BIT (1 << 18)
+#define MC13892_LED_C1_KP_HI_CURRENT (1 << 1)
+#define MC13892_LED_C1_RAMPKP_ENABLE (1 << 2)
#define MC13XXX_REG_LED_CONTROL_2 53
#define MC13783_LED_C2_BL_P_MASK 0xf
@@ -62,10 +68,15 @@ struct mc13xxx_led {
#define MC13783_LED_C2_MD_C 0
#define MC13783_LED_C2_AD_C 3
#define MC13783_LED_C2_KP_C 6
+#define MC13892_LED_C2_RAMPR_ENABLE (1 << 2)
+#define MC13892_LED_CX_CURRENT_MASK 0x7
+#define MC13892_LED_CX_DUTY_MASK 0x3f
+#define MC13892_LED_C2_RAMPG_ENABLE (1 << 14)
#define MC13XXX_REG_LED_CONTROL_3 54
#define MC13783_LED_C3_TC_P 6
#define MC13783_LED_C3_TC_P_MASK 0x1f
+#define MC13892_LED_C3_RAMPB_ENABLE (1 << 2)
#define MC13783_REG_LED_CONTROL_4 55
#define MC13783_REG_LED_CONTROL_5 56
@@ -116,6 +127,34 @@ static void mc13xxx_led_work(struct work_struct *work)
value = led->new_brightness >> 3;
mask = MC13783_LED_C3_TC_P_MASK;
break;
+ case MC13892_LED_MD:
+ reg = MC13XXX_REG_LED_CONTROL_0;
+ mask = MC13892_LED_CX_DUTY_MASK;
+ shift = 3;
+ value = led->new_brightness >> 2;
+ break;
+ case MC13892_LED_AD:
+ reg = MC13XXX_REG_LED_CONTROL_0;
+ mask = MC13892_LED_CX_DUTY_MASK;
+ shift = 15;
+ value = led->new_brightness >> 2;
+ break;
+ case MC13892_LED_KP:
+ reg = MC13XXX_REG_LED_CONTROL_1;
+ mask = MC13892_LED_CX_DUTY_MASK;
+ shift = 3;
+ 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 = MC13892_LED_CX_DUTY_MASK;
+ break;
default:
BUG();
}
@@ -170,6 +209,29 @@ static int mc13xxx_led_setup(struct mc13xxx_led *led, int max_current)
shift = ((led->id - MC13783_LED_R1) - bank * 3) * 2;
mask = MC13783_LED_Cx_TC_C_MASK;
break;
+ case MC13892_LED_MD:
+ shift = 9;
+ mask = MC13892_LED_CX_CURRENT_MASK;
+ reg = MC13XXX_REG_LED_CONTROL_0;
+ break;
+ case MC13892_LED_AD:
+ shift = 21;
+ mask = MC13892_LED_CX_CURRENT_MASK;
+ reg = MC13XXX_REG_LED_CONTROL_0;
+ break;
+ case MC13892_LED_KP:
+ shift = 9;
+ mask = MC13892_LED_CX_CURRENT_MASK;
+ reg = MC13XXX_REG_LED_CONTROL_1;
+ 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 = MC13892_LED_CX_CURRENT_MASK;
+ break;
default:
BUG();
}
@@ -279,6 +341,66 @@ static void mc13783_leds_shutdown(struct platform_device *pdev)
mc13xxx_unlock(dev);
}
+static int mc13892_leds_startup(struct platform_device *pdev)
+{
+ struct mc13xxx_leds_platform_data *pdata = dev_get_platdata(&pdev->dev);
+ struct mc13xxx *dev = dev_get_drvdata(pdev->dev.parent);
+ int ret, reg;
+
+ mc13xxx_lock(dev);
+
+ reg = (pdata->flags & MC13892_LEDMD_HI_CURR) ?
+ MC13892_LED_C0_MD_HI_CURRENT : 0;
+ reg |= (pdata->flags & MC13892_LEDMD_RAMP_EN) ?
+ MC13892_LED_C0_RAMPMD_ENABLE : 0;
+ reg |= (pdata->flags & MC13892_LEDAD_HI_CURR) ?
+ MC13892_LED_C0_AD_HI_CURRENT : 0;
+ reg |= (pdata->flags & MC13892_LEDAD_RAMP_EN) ?
+ MC13892_LED_C0_RAMPAD_ENABLE : 0;
+ ret = mc13xxx_reg_write(dev, MC13XXX_REG_LED_CONTROL_0, 0);
+ if (ret)
+ goto out;
+
+ reg = (pdata->flags & MC13892_LEDKP_HI_CURR) ?
+ MC13892_LED_C1_KP_HI_CURRENT : 0;
+ reg |= (pdata->flags & MC13892_LEDKP_RAMP_EN) ?
+ MC13892_LED_C1_RAMPKP_ENABLE : 0;
+ ret = mc13xxx_reg_write(dev, MC13XXX_REG_LED_CONTROL_1, 0);
+ if (ret)
+ goto out;
+
+ reg = (pdata->flags & MC13892_LEDR_RAMP_EN) ?
+ MC13892_LED_C2_RAMPR_ENABLE : 0;
+ reg |= (pdata->flags & MC13892_LEDG_RAMP_EN) ?
+ MC13892_LED_C2_RAMPG_ENABLE : 0;
+ ret = mc13xxx_reg_write(dev, MC13XXX_REG_LED_CONTROL_2, reg);
+ if (ret)
+ goto out;
+
+ reg = (pdata->flags & MC13892_LEDB_RAMP_EN) ?
+ MC13892_LED_C3_RAMPB_ENABLE : 0;
+ ret = mc13xxx_reg_write(dev, MC13XXX_REG_LED_CONTROL_3, reg);
+
+out:
+ mc13xxx_unlock(dev);
+
+ return ret;
+}
+
+static void mc13892_leds_shutdown(struct platform_device *pdev)
+{
+ struct mc13xxx *dev = dev_get_drvdata(pdev->dev.parent);
+
+ mc13xxx_lock(dev);
+
+ mc13xxx_reg_write(dev, MC13XXX_REG_LED_CONTROL_0, 0);
+ mc13xxx_reg_write(dev, MC13XXX_REG_LED_CONTROL_1, 0);
+ mc13xxx_reg_write(dev, MC13XXX_REG_LED_CONTROL_2, 0);
+ mc13xxx_reg_write(dev, MC13XXX_REG_LED_CONTROL_3, 0);
+
+ mc13xxx_unlock(dev);
+}
+
static int mc13xxx_led_probe(struct platform_device *pdev)
{
struct mc13xxx_leds_platform_data *pdata = dev_get_platdata(&pdev->dev);
@@ -394,8 +516,16 @@ static const struct mc13xxx_led_devtype mc13783_led_devtype = {
.leds_shutdown = mc13783_leds_shutdown,
};
+static const struct mc13xxx_led_devtype mc13892_led_devtype = {
+ .led_min = MC13892_LED_MD,
+ .led_max = MC13892_LED_B,
+ .leds_startup = mc13892_leds_startup,
+ .leds_shutdown = mc13892_leds_shutdown,
+};
+
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);
@@ -78,19 +78,30 @@ struct mc13xxx_regulator_platform_data {
struct mc13xxx_regulator_init_data *regulators;
};
+enum {
+ /* MC13783 LED IDs */
+ MC13783_LED_MD,
+ MC13783_LED_AD,
+ MC13783_LED_KP,
+ MC13783_LED_R1,
+ MC13783_LED_G1,
+ MC13783_LED_B1,
+ MC13783_LED_R2,
+ MC13783_LED_G2,
+ MC13783_LED_B2,
+ 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 {
-#define MC13783_LED_MD 0
-#define MC13783_LED_AD 1
-#define MC13783_LED_KP 2
-#define MC13783_LED_R1 3
-#define MC13783_LED_G1 4
-#define MC13783_LED_B1 5
-#define MC13783_LED_R2 6
-#define MC13783_LED_G2 7
-#define MC13783_LED_B2 8
-#define MC13783_LED_R3 9
-#define MC13783_LED_G3 10
-#define MC13783_LED_B3 11
int id;
const char *name;
const char *default_trigger;
@@ -103,6 +114,7 @@ struct mc13xxx_leds_platform_data {
int num_leds;
struct mc13xxx_led_platform_data *led;
+/* MC13783 specific */
#define MC13783_LED_TRIODE_MD (1 << 0)
#define MC13783_LED_TRIODE_AD (1 << 1)
#define MC13783_LED_TRIODE_KP (1 << 2)
@@ -113,7 +125,17 @@ struct mc13xxx_leds_platform_data {
#define MC13783_LED_TRIODE_TC1 (1 << 7)
#define MC13783_LED_TRIODE_TC2 (1 << 8)
#define MC13783_LED_TRIODE_TC3 (1 << 9)
- int flags;
+/* MC13892 specific */
+#define MC13892_LEDMD_HI_CURR (1 << 10)
+#define MC13892_LEDMD_RAMP_EN (1 << 11)
+#define MC13892_LEDAD_HI_CURR (1 << 12)
+#define MC13892_LEDAD_RAMP_EN (1 << 13)
+#define MC13892_LEDKP_HI_CURR (1 << 14)
+#define MC13892_LEDKP_RAMP_EN (1 << 15)
+#define MC13892_LEDR_RAMP_EN (1 << 16)
+#define MC13892_LEDG_RAMP_EN (1 << 17)
+#define MC13892_LEDB_RAMP_EN (1 << 18)
+ unsigned int flags;
#define MC13783_LED_AB_DISABLED 0
#define MC13783_LED_AB_MD1 1
Signed-off-by: Alexander Shiyan <shc_work@mail.ru> --- drivers/leds/leds-mc13783.c | 132 +++++++++++++++++++++++++++++++++++++++++++- include/linux/mfd/mc13xxx.h | 48 +++++++++++----- 2 files changed, 166 insertions(+), 14 deletions(-)